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118,500
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/UtilizationCollector.java
UtilizationCollector.stop
public void stop() { running = false; if (server != null) server.stop(); if (aggregateDaemon != null) aggregateDaemon.interrupt(); }
java
public void stop() { running = false; if (server != null) server.stop(); if (aggregateDaemon != null) aggregateDaemon.interrupt(); }
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Stop all Collector threads and wait for all to finish.
[ "Stop", "all", "Collector", "threads", "and", "wait", "for", "all", "to", "finish", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/UtilizationCollector.java#L224-L228
118,501
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/UtilizationCollector.java
UtilizationCollector.getTaskTrackerUtilization
@Override public TaskTrackerUtilization getTaskTrackerUtilization(String hostName) throws IOException { if (taskTrackerReports.get(hostName) == null) { return null; } return taskTrackerReports.get(hostName).getTaskTrackerUtilization(); }
java
@Override public TaskTrackerUtilization getTaskTrackerUtilization(String hostName) throws IOException { if (taskTrackerReports.get(hostName) == null) { return null; } return taskTrackerReports.get(hostName).getTaskTrackerUtilization(); }
[ "@", "Override", "public", "TaskTrackerUtilization", "getTaskTrackerUtilization", "(", "String", "hostName", ")", "throws", "IOException", "{", "if", "(", "taskTrackerReports", ".", "get", "(", "hostName", ")", "==", "null", ")", "{", "return", "null", ";", "}",...
Implement CollectorProtocol methods
[ "Implement", "CollectorProtocol", "methods" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/UtilizationCollector.java#L407-L414
118,502
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/UtilizationCollector.java
UtilizationCollector.main
public static void main(String argv[]) throws Exception { StringUtils.startupShutdownMessage(UtilizationCollector.class, argv, LOG); try { Configuration conf = new Configuration(); UtilizationCollector collector = new UtilizationCollector(conf); if (collector != null) { collector.join(...
java
public static void main(String argv[]) throws Exception { StringUtils.startupShutdownMessage(UtilizationCollector.class, argv, LOG); try { Configuration conf = new Configuration(); UtilizationCollector collector = new UtilizationCollector(conf); if (collector != null) { collector.join(...
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main program to run on the Collector server
[ "main", "program", "to", "run", "on", "the", "Collector", "server" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/UtilizationCollector.java#L480-L492
118,503
facebookarchive/hadoop-20
src/tools/org/apache/hadoop/tools/HadoopArchives.java
HadoopArchives.checkPaths
private static void checkPaths(Configuration conf, List<Path> paths) throws IOException { for (Path p : paths) { FileSystem fs = p.getFileSystem(conf); if (!fs.exists(p)) { throw new FileNotFoundException("Source " + p + " does not exist."); } } }
java
private static void checkPaths(Configuration conf, List<Path> paths) throws IOException { for (Path p : paths) { FileSystem fs = p.getFileSystem(conf); if (!fs.exists(p)) { throw new FileNotFoundException("Source " + p + " does not exist."); } } }
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check the src paths
[ "check", "the", "src", "paths" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/tools/org/apache/hadoop/tools/HadoopArchives.java#L162-L170
118,504
facebookarchive/hadoop-20
src/tools/org/apache/hadoop/tools/HadoopArchives.java
HadoopArchives.relPathToRoot
private Path relPathToRoot(Path fullPath, Path root) { // just take some effort to do it // rather than just using substring // so that we do not break sometime later Path justRoot = new Path(Path.SEPARATOR); if (fullPath.depth() == root.depth()) { return justRoot; } else if (fullPat...
java
private Path relPathToRoot(Path fullPath, Path root) { // just take some effort to do it // rather than just using substring // so that we do not break sometime later Path justRoot = new Path(Path.SEPARATOR); if (fullPath.depth() == root.depth()) { return justRoot; } else if (fullPat...
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truncate the prefix root from the full path @param fullPath the full path @param root the prefix root to be truncated @return the relative path
[ "truncate", "the", "prefix", "root", "from", "the", "full", "path" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/tools/org/apache/hadoop/tools/HadoopArchives.java#L276-L294
118,505
facebookarchive/hadoop-20
src/tools/org/apache/hadoop/tools/HadoopArchives.java
HadoopArchives.cleanJobDirectory
private void cleanJobDirectory() { try { FileSystem jobfs = jobDirectory.getFileSystem(conf); jobfs.delete(jobDirectory, true); } catch(IOException ioe) { LOG.warn("Unable to clean tmp directory " + jobDirectory, ioe); } }
java
private void cleanJobDirectory() { try { FileSystem jobfs = jobDirectory.getFileSystem(conf); jobfs.delete(jobDirectory, true); } catch(IOException ioe) { LOG.warn("Unable to clean tmp directory " + jobDirectory, ioe); } }
[ "private", "void", "cleanJobDirectory", "(", ")", "{", "try", "{", "FileSystem", "jobfs", "=", "jobDirectory", ".", "getFileSystem", "(", "conf", ")", ";", "jobfs", ".", "delete", "(", "jobDirectory", ",", "true", ")", ";", "}", "catch", "(", "IOException"...
delete the tmp job directory
[ "delete", "the", "tmp", "job", "directory" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/tools/org/apache/hadoop/tools/HadoopArchives.java#L373-L380
118,506
facebookarchive/hadoop-20
src/tools/org/apache/hadoop/tools/HadoopArchives.java
HadoopArchives.archive
private void archive(Path parentPath, List<Path> srcPaths, Path outputPath, boolean append) throws IOException { parentPath = parentPath.makeQualified(parentPath.getFileSystem(conf)); checkPaths(conf, srcPaths); Path destinationDir = outputPath.getParent(); FileOutputFormat.setOutputPath(conf, ou...
java
private void archive(Path parentPath, List<Path> srcPaths, Path outputPath, boolean append) throws IOException { parentPath = parentPath.makeQualified(parentPath.getFileSystem(conf)); checkPaths(conf, srcPaths); Path destinationDir = outputPath.getParent(); FileOutputFormat.setOutputPath(conf, ou...
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archive the given source paths into the dest @param parentPath the parent path of all the source paths @param srcPaths the src paths to be archived @param dest the dest dir that will contain the archive @param append append to existing archive or create new
[ "archive", "the", "given", "source", "paths", "into", "the", "dest" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/tools/org/apache/hadoop/tools/HadoopArchives.java#L546-L616
118,507
facebookarchive/hadoop-20
src/tools/org/apache/hadoop/tools/HadoopArchives.java
HadoopArchives.writeLineToMasterIndex
private static void writeLineToMasterIndex(FSDataOutputStream stream, long startHash, long endHash, long indexStartPos, long indexEndPos) throws IOException { String toWrite = startHash + " " + endHash + " " + indexStartPos + " " + indexEndPos + "\n"; stream.write(toWrite.getBytes()); }
java
private static void writeLineToMasterIndex(FSDataOutputStream stream, long startHash, long endHash, long indexStartPos, long indexEndPos) throws IOException { String toWrite = startHash + " " + endHash + " " + indexStartPos + " " + indexEndPos + "\n"; stream.write(toWrite.getBytes()); }
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Writes data corresponding to part of _index to master index @param stream stream where to write data @param startHash hash of first entry in block @param endHash hash of last entry in block @param indexStartPos position (in bytes) of the beginning of the block @param indexEndPos position (in bytes) of the end of the bl...
[ "Writes", "data", "corresponding", "to", "part", "of", "_index", "to", "master", "index" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/tools/org/apache/hadoop/tools/HadoopArchives.java#L1097-L1101
118,508
facebookarchive/hadoop-20
src/tools/org/apache/hadoop/tools/HadoopArchives.java
HadoopArchives.createNewPartStream
private FSDataOutputStream createNewPartStream(Path dst, int partId) throws IOException { String partName = PART_PREFIX + partId; Path output = new Path(dst, partName); FileSystem destFs = output.getFileSystem(conf); FSDataOutputStream partStream = destFs.create(output, false, conf.getInt("io.fi...
java
private FSDataOutputStream createNewPartStream(Path dst, int partId) throws IOException { String partName = PART_PREFIX + partId; Path output = new Path(dst, partName); FileSystem destFs = output.getFileSystem(conf); FSDataOutputStream partStream = destFs.create(output, false, conf.getInt("io.fi...
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Creates new stream to write actual file data @param dst parent of the part-id file @param partId id of the part @return the open stream @throws IOException
[ "Creates", "new", "stream", "to", "write", "actual", "file", "data" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/tools/org/apache/hadoop/tools/HadoopArchives.java#L1110-L1118
118,509
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/MetaRecoveryContext.java
MetaRecoveryContext.ask
public static String ask(String prompt, String firstChoice, String... choices) throws IOException { while (true) { LOG.info(prompt); StringBuilder responseBuilder = new StringBuilder(); while (true) { int c = System.in.read(); if (c == -1 || c == '\r' || c == '\n') { ...
java
public static String ask(String prompt, String firstChoice, String... choices) throws IOException { while (true) { LOG.info(prompt); StringBuilder responseBuilder = new StringBuilder(); while (true) { int c = System.in.read(); if (c == -1 || c == '\r' || c == '\n') { ...
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Display a prompt to the user and get his or her choice. @param prompt The prompt to display @param default First choice (will be taken if autoChooseDefault is true) @param choices Other choies @return The choice that was taken @throws IOException
[ "Display", "a", "prompt", "to", "the", "user", "and", "get", "his", "or", "her", "choice", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/MetaRecoveryContext.java#L40-L62
118,510
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java
SimulatedTaskRunner.launchTask
public void launchTask(TaskInProgress tip) throws IOException { LOG.info("Launching simulated task " + tip.getTask().getTaskID() + " for job " + tip.getTask().getJobID()); TaskUmbilicalProtocol umbilicalProtocol = taskTracker.getUmbilical(tip); // For map tasks, we can just finish the task after som...
java
public void launchTask(TaskInProgress tip) throws IOException { LOG.info("Launching simulated task " + tip.getTask().getTaskID() + " for job " + tip.getTask().getJobID()); TaskUmbilicalProtocol umbilicalProtocol = taskTracker.getUmbilical(tip); // For map tasks, we can just finish the task after som...
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The primary public method that should be called to 'run' a task. Handles both map and reduce tasks and marks them as completed after the configured time interval @param tip
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java#L144-L162
118,511
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java
SimulatedTaskRunner.addTipToFinish
protected void addTipToFinish(TaskInProgress tip, TaskUmbilicalProtocol umbilicalProtocol) { long currentTime = System.currentTimeMillis(); long finishTime = currentTime + Math.abs(rand.nextLong()) % timeToFinishTask; LOG.info("Adding TIP " + tip.getTask().getTaskID()...
java
protected void addTipToFinish(TaskInProgress tip, TaskUmbilicalProtocol umbilicalProtocol) { long currentTime = System.currentTimeMillis(); long finishTime = currentTime + Math.abs(rand.nextLong()) % timeToFinishTask; LOG.info("Adding TIP " + tip.getTask().getTaskID()...
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Add the specified TaskInProgress to the priority queue of tasks to finish. @param tip @param umbilicalProtocol
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java#L169-L184
118,512
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java
SimulatedTaskRunner.run
@Override public void run() { while (true) { // Wait to get a TIP TipToFinish ttf = null; try { LOG.debug("Waiting for a TIP"); ttf = tipQueue.take(); } catch (InterruptedException e) { LOG.info("Got interrupted exception while waiting to take()"); continue;...
java
@Override public void run() { while (true) { // Wait to get a TIP TipToFinish ttf = null; try { LOG.debug("Waiting for a TIP"); ttf = tipQueue.take(); } catch (InterruptedException e) { LOG.info("Got interrupted exception while waiting to take()"); continue;...
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Continuously looks through the queue of TIP's to mark as finished, finishing and sleeping as necessary. Can be interrupted while it's sleeping if it needs to re-evaluate how long to sleep.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java#L192-L261
118,513
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java
SimulatedTaskRunner.cancel
public void cancel(TaskInProgress tip) { LOG.info("Canceling task " + tip.getTask().getTaskID() + " of job " + tip.getTask().getJobID()); // Cancel & remove the map completion finish thread for reduce tasks. if (!tip.getTask().isMapTask() && !tip.getTask().isTaskCleanupTask()) { if (!mapperWa...
java
public void cancel(TaskInProgress tip) { LOG.info("Canceling task " + tip.getTask().getTaskID() + " of job " + tip.getTask().getJobID()); // Cancel & remove the map completion finish thread for reduce tasks. if (!tip.getTask().isMapTask() && !tip.getTask().isTaskCleanupTask()) { if (!mapperWa...
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Called in case the task needs to be killed. Canceling will kill any map wait threads and also remove it from the queue of tasks that should be marked as finished. @param tip the killed TaskInProgress
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SimulatedTaskRunner.java#L279-L300
118,514
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/HadoopLogParser.java
HadoopLogParser.parseLine
public EventRecord parseLine(String line) throws IOException { EventRecord retval = null; if (line != null) { // process line String patternStr = "(" + dateformat + ")"; patternStr += "\\s+"; patternStr += "(" + timeformat + ")"; patternStr += ".{4}\\s(\\w*)\\s"; // for logLevel ...
java
public EventRecord parseLine(String line) throws IOException { EventRecord retval = null; if (line != null) { // process line String patternStr = "(" + dateformat + ")"; patternStr += "\\s+"; patternStr += "(" + timeformat + ")"; patternStr += ".{4}\\s(\\w*)\\s"; // for logLevel ...
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Parses one line of the log. If the line contains a valid log entry, then an appropriate EventRecord is returned, after all relevant fields have been parsed. @param line the log line to be parsed @return the EventRecord representing the log entry of the line. If the line does not contain a valid log entry, then the Ev...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/HadoopLogParser.java#L60-L87
118,515
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/HadoopLogParser.java
HadoopLogParser.parseDate
protected Calendar parseDate(String strDate, String strTime) { Calendar retval = Calendar.getInstance(); // set date String[] fields = strDate.split("-"); retval.set(Calendar.YEAR, Integer.parseInt(fields[0])); retval.set(Calendar.MONTH, Integer.parseInt(fields[1])); retval.set(Calendar.DATE, In...
java
protected Calendar parseDate(String strDate, String strTime) { Calendar retval = Calendar.getInstance(); // set date String[] fields = strDate.split("-"); retval.set(Calendar.YEAR, Integer.parseInt(fields[0])); retval.set(Calendar.MONTH, Integer.parseInt(fields[1])); retval.set(Calendar.DATE, In...
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Parse a date found in the Hadoop log. @return a Calendar representing the date
[ "Parse", "a", "date", "found", "in", "the", "Hadoop", "log", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/HadoopLogParser.java#L94-L107
118,516
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/HadoopLogParser.java
HadoopLogParser.findHostname
private void findHostname() { String startupInfo = Environment.runCommand( "grep --max-count=1 STARTUP_MSG:\\s*host " + file.getName()).toString(); Pattern pattern = Pattern.compile("\\s+(\\w+/.+)\\s+"); Matcher matcher = pattern.matcher(startupInfo); if (matcher.find(0)) { hostname = matc...
java
private void findHostname() { String startupInfo = Environment.runCommand( "grep --max-count=1 STARTUP_MSG:\\s*host " + file.getName()).toString(); Pattern pattern = Pattern.compile("\\s+(\\w+/.+)\\s+"); Matcher matcher = pattern.matcher(startupInfo); if (matcher.find(0)) { hostname = matc...
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Attempt to determine the hostname of the node that created the log file. This information can be found in the STARTUP_MSG lines of the Hadoop log, which are emitted when the node starts.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/HadoopLogParser.java#L115-L125
118,517
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java
CorruptReplicasMap.addToCorruptReplicasMap
public boolean addToCorruptReplicasMap(Block blk, DatanodeDescriptor dn) { Collection<DatanodeDescriptor> nodes = getNodes(blk); if (nodes == null) { nodes = new TreeSet<DatanodeDescriptor>(); corruptReplicasMap.put(blk, nodes); } boolean added = false; if (!nodes.contains(dn)) { a...
java
public boolean addToCorruptReplicasMap(Block blk, DatanodeDescriptor dn) { Collection<DatanodeDescriptor> nodes = getNodes(blk); if (nodes == null) { nodes = new TreeSet<DatanodeDescriptor>(); corruptReplicasMap.put(blk, nodes); } boolean added = false; if (!nodes.contains(dn)) { a...
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Mark the block belonging to datanode as corrupt. @param blk Block to be added to CorruptReplicasMap @param dn DatanodeDescriptor which holds the corrupt replica @return if the block gets added or not
[ "Mark", "the", "block", "belonging", "to", "datanode", "as", "corrupt", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java#L46-L67
118,518
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java
CorruptReplicasMap.removeFromCorruptReplicasMap
boolean removeFromCorruptReplicasMap(Block blk, DatanodeDescriptor datanode) { Collection<DatanodeDescriptor> datanodes = corruptReplicasMap.get(blk); if (datanodes==null) return false; if (datanodes.remove(datanode)) { // remove the replicas if (datanodes.isEmpty()) { // remove the bloc...
java
boolean removeFromCorruptReplicasMap(Block blk, DatanodeDescriptor datanode) { Collection<DatanodeDescriptor> datanodes = corruptReplicasMap.get(blk); if (datanodes==null) return false; if (datanodes.remove(datanode)) { // remove the replicas if (datanodes.isEmpty()) { // remove the bloc...
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Remove the block at the given datanode from CorruptBlockMap @param blk block to be removed @param datanode datanode where the block is located @return true if the removal is successful; false if the replica is not in the map
[ "Remove", "the", "block", "at", "the", "given", "datanode", "from", "CorruptBlockMap" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java#L87-L99
118,519
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java
CorruptReplicasMap.getNodes
Collection<DatanodeDescriptor> getNodes(Block blk) { if (corruptReplicasMap.size() == 0) return null; return corruptReplicasMap.get(blk); }
java
Collection<DatanodeDescriptor> getNodes(Block blk) { if (corruptReplicasMap.size() == 0) return null; return corruptReplicasMap.get(blk); }
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Get Nodes which have corrupt replicas of Block @param blk Block for which nodes are requested @return collection of nodes. Null if does not exists
[ "Get", "Nodes", "which", "have", "corrupt", "replicas", "of", "Block" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java#L108-L112
118,520
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java
CorruptReplicasMap.isReplicaCorrupt
boolean isReplicaCorrupt(Block blk, DatanodeDescriptor node) { Collection<DatanodeDescriptor> nodes = getNodes(blk); return ((nodes != null) && (nodes.contains(node))); }
java
boolean isReplicaCorrupt(Block blk, DatanodeDescriptor node) { Collection<DatanodeDescriptor> nodes = getNodes(blk); return ((nodes != null) && (nodes.contains(node))); }
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Check if replica belonging to Datanode is corrupt @param blk Block to check @param node DatanodeDescriptor which holds the replica @return true if replica is corrupt, false if does not exists in this map
[ "Check", "if", "replica", "belonging", "to", "Datanode", "is", "corrupt" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/CorruptReplicasMap.java#L121-L124
118,521
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/ProtocolSignature.java
ProtocolSignature.getFingerprint
static int getFingerprint(Method method) { int hashcode = method.getName().hashCode(); hashcode = hashcode + 31*method.getReturnType().getName().hashCode(); for (Class<?> type : method.getParameterTypes()) { hashcode = 31*hashcode ^ type.getName().hashCode(); } return hashcode; }
java
static int getFingerprint(Method method) { int hashcode = method.getName().hashCode(); hashcode = hashcode + 31*method.getReturnType().getName().hashCode(); for (Class<?> type : method.getParameterTypes()) { hashcode = 31*hashcode ^ type.getName().hashCode(); } return hashcode; }
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Calculate a method's hash code considering its method name, returning type, and its parameter types @param method a method @return its hash code
[ "Calculate", "a", "method", "s", "hash", "code", "considering", "its", "method", "name", "returning", "type", "and", "its", "parameter", "types" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/ProtocolSignature.java#L103-L110
118,522
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/ProtocolSignature.java
ProtocolSignature.getFingerprints
private static int[] getFingerprints(Method[] methods) { if (methods == null) { return null; } int[] hashCodes = new int[methods.length]; for (int i = 0; i<methods.length; i++) { hashCodes[i] = getFingerprint(methods[i]); } return hashCodes; }
java
private static int[] getFingerprints(Method[] methods) { if (methods == null) { return null; } int[] hashCodes = new int[methods.length]; for (int i = 0; i<methods.length; i++) { hashCodes[i] = getFingerprint(methods[i]); } return hashCodes; }
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Convert an array of Method into an array of hash codes @param methods @return array of hash codes
[ "Convert", "an", "array", "of", "Method", "into", "an", "array", "of", "hash", "codes" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/ProtocolSignature.java#L118-L127
118,523
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/ProtocolSignature.java
ProtocolSignature.getSigFingerprint
private static ProtocolSigFingerprint getSigFingerprint( Class <? extends VersionedProtocol> protocol, long serverVersion) { String protocolName = protocol.getName(); synchronized (PROTOCOL_FINGERPRINT_CACHE) { ProtocolSigFingerprint sig = PROTOCOL_FINGERPRINT_CACHE.get(protocolName); if (sig ...
java
private static ProtocolSigFingerprint getSigFingerprint( Class <? extends VersionedProtocol> protocol, long serverVersion) { String protocolName = protocol.getName(); synchronized (PROTOCOL_FINGERPRINT_CACHE) { ProtocolSigFingerprint sig = PROTOCOL_FINGERPRINT_CACHE.get(protocolName); if (sig ...
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Return a protocol's signature and finger print from cache @param protocol a protocol class @param serverVersion protocol version @return its signature and finger print
[ "Return", "a", "protocol", "s", "signature", "and", "finger", "print", "from", "cache" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/ProtocolSignature.java#L183-L197
118,524
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java
Utilities.incrComputeSpecs
public static void incrComputeSpecs(ComputeSpecs target, ComputeSpecs incr) { target.numCpus += incr.numCpus; target.memoryMB += incr.memoryMB; target.diskGB += incr.diskGB; }
java
public static void incrComputeSpecs(ComputeSpecs target, ComputeSpecs incr) { target.numCpus += incr.numCpus; target.memoryMB += incr.memoryMB; target.diskGB += incr.diskGB; }
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Increase the compute specs @param target the compute specs to increase @param incr the increment
[ "Increase", "the", "compute", "specs" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java#L88-L92
118,525
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java
Utilities.decrComputeSpecs
public static void decrComputeSpecs(ComputeSpecs target, ComputeSpecs decr) { target.numCpus -= decr.numCpus; target.memoryMB -= decr.memoryMB; target.diskGB -= decr.diskGB; }
java
public static void decrComputeSpecs(ComputeSpecs target, ComputeSpecs decr) { target.numCpus -= decr.numCpus; target.memoryMB -= decr.memoryMB; target.diskGB -= decr.diskGB; }
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Decrease the compute specs by decr @param target the specs to decrease @param decr the decrement
[ "Decrease", "the", "compute", "specs", "by", "decr" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java#L99-L103
118,526
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java
Utilities.waitThreadTermination
public static void waitThreadTermination(Thread thread) { while (thread != null && thread.isAlive()) { thread.interrupt(); try { thread.join(); } catch (InterruptedException e) { } } }
java
public static void waitThreadTermination(Thread thread) { while (thread != null && thread.isAlive()) { thread.interrupt(); try { thread.join(); } catch (InterruptedException e) { } } }
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A realiable way to wait for the thread termination @param thread thread to wait for
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java#L128-L136
118,527
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java
Utilities.appInfoToAddress
public static InetAddress appInfoToAddress(String info) { Matcher m = INET_ADDRESS_PATTERN.matcher(info); if (m.find()) { int port = Integer.parseInt(m.group(2)); return new InetAddress(m.group(1), port); } return null; }
java
public static InetAddress appInfoToAddress(String info) { Matcher m = INET_ADDRESS_PATTERN.matcher(info); if (m.find()) { int port = Integer.parseInt(m.group(2)); return new InetAddress(m.group(1), port); } return null; }
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Convert the appinfo string to the address the application is available on @param info the string of the appinfo @return the address application is available on
[ "Convert", "the", "appinfo", "string", "to", "the", "address", "the", "application", "is", "available", "on" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java#L143-L150
118,528
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java
Utilities.makeProcessExitOnUncaughtException
public static void makeProcessExitOnUncaughtException(final Log log) { Thread.setDefaultUncaughtExceptionHandler( new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(Thread t, Throwable e) { log.error("UNCAUGHT: Thread " + t.getName() + " got a...
java
public static void makeProcessExitOnUncaughtException(final Log log) { Thread.setDefaultUncaughtExceptionHandler( new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(Thread t, Throwable e) { log.error("UNCAUGHT: Thread " + t.getName() + " got a...
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Sets an uncaught exception handler. This will make the process exit with exit code 1 if a thread exits due to an uncaught exception.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Utilities.java#L156-L166
118,529
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/bookkeeper/zk/ZkUtil.java
ZkUtil.interruptedException
public static void interruptedException(String msg, InterruptedException e) throws IOException { Thread.currentThread().interrupt(); LOG.error(msg, e); throw new IOException(msg, e); }
java
public static void interruptedException(String msg, InterruptedException e) throws IOException { Thread.currentThread().interrupt(); LOG.error(msg, e); throw new IOException(msg, e); }
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Interrupt the thread and then log and re-throw an InterruptedException as an IOException. @param msg The message to log and include when re-throwing @param e The actual exception instances @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/bookkeeper/zk/ZkUtil.java#L80-L85
118,530
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/DistributedRaidFileSystem.java
DistributedRaidFileSystem.getBlockSize
private static long getBlockSize(LocatedBlocks lbs) throws IOException { List<LocatedBlock> locatedBlocks = lbs.getLocatedBlocks(); long bs = -1; for (LocatedBlock lb: locatedBlocks) { if (lb.getBlockSize() > bs) { bs = lb.getBlockSize(); } } return bs; }
java
private static long getBlockSize(LocatedBlocks lbs) throws IOException { List<LocatedBlock> locatedBlocks = lbs.getLocatedBlocks(); long bs = -1; for (LocatedBlock lb: locatedBlocks) { if (lb.getBlockSize() > bs) { bs = lb.getBlockSize(); } } return bs; }
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Obtain block size given 3 or more blocks
[ "Obtain", "block", "size", "given", "3", "or", "more", "blocks" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/DistributedRaidFileSystem.java#L146-L155
118,531
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/DistributedRaidFileSystem.java
DistributedRaidFileSystem.undelete
@Override public boolean undelete(Path f, String userName) throws IOException { List<Codec> codecList = Codec.getCodecs(); Path[] parityPathList = new Path[codecList.size()]; for (int i=0; i<parityPathList.length; i++) { parityPathList[i] = new Path(codecList.get(i).parityDirectory, ...
java
@Override public boolean undelete(Path f, String userName) throws IOException { List<Codec> codecList = Codec.getCodecs(); Path[] parityPathList = new Path[codecList.size()]; for (int i=0; i<parityPathList.length; i++) { parityPathList[i] = new Path(codecList.get(i).parityDirectory, ...
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undelete the parity file together with the src file.
[ "undelete", "the", "parity", "file", "together", "with", "the", "src", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/DistributedRaidFileSystem.java#L282-L302
118,532
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/DistributedRaidFileSystem.java
DistributedRaidFileSystem.searchHarDir
private boolean searchHarDir(FileStatus stat) throws IOException { if (!stat.isDir()) { return false; } String pattern = stat.getPath().toString() + "/*" + RaidNode.HAR_SUFFIX + "*"; FileStatus[] stats = globStatus(new Path(pattern)); if (stats != null && stats.length > 0) { ...
java
private boolean searchHarDir(FileStatus stat) throws IOException { if (!stat.isDir()) { return false; } String pattern = stat.getPath().toString() + "/*" + RaidNode.HAR_SUFFIX + "*"; FileStatus[] stats = globStatus(new Path(pattern)); if (stats != null && stats.length > 0) { ...
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search the Har-ed parity files
[ "search", "the", "Har", "-", "ed", "parity", "files" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/DistributedRaidFileSystem.java#L307-L328
118,533
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java
HardLinkFileInfo.getHardLinkedFile
public INodeHardLinkFile getHardLinkedFile(int i) { if (i < this.linkedFiles.size()) { return this.linkedFiles.get(i); } return null; }
java
public INodeHardLinkFile getHardLinkedFile(int i) { if (i < this.linkedFiles.size()) { return this.linkedFiles.get(i); } return null; }
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Return the i th of the hardlinked file @param i @return the i th of the hardlinked files and return null if i is out of the boundary.
[ "Return", "the", "i", "th", "of", "the", "hardlinked", "file" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java#L58-L63
118,534
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java
HardLinkFileInfo.removeLinkedFile
public void removeLinkedFile(INodeHardLinkFile file) { // Remove the target file from the linkedFiles // Since the equal function in the INode only compares the name field, it would be safer to // iterate the INodeHardLinkFile and compare the reference directly. for (int i = 0 ; i < linkedFiles.size();...
java
public void removeLinkedFile(INodeHardLinkFile file) { // Remove the target file from the linkedFiles // Since the equal function in the INode only compares the name field, it would be safer to // iterate the INodeHardLinkFile and compare the reference directly. for (int i = 0 ; i < linkedFiles.size();...
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Remove an INodeHardLinkFile from the linkedFiles. This function is not thread-safe. The caller is supposed to have a writeLock. @param file The INodeHardLinkFile to be removed
[ "Remove", "an", "INodeHardLinkFile", "from", "the", "linkedFiles", ".", "This", "function", "is", "not", "thread", "-", "safe", ".", "The", "caller", "is", "supposed", "to", "have", "a", "writeLock", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java#L81-L118
118,535
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java
HardLinkFileInfo.setPermissionStatus
protected void setPermissionStatus(PermissionStatus ps) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setPermissionStatus(ps, false); } }
java
protected void setPermissionStatus(PermissionStatus ps) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setPermissionStatus(ps, false); } }
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Set the PermissionSatus for all the linked files @param ps
[ "Set", "the", "PermissionSatus", "for", "all", "the", "linked", "files" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java#L145-L149
118,536
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java
HardLinkFileInfo.setUser
protected void setUser(String user) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setUser(user, false); } }
java
protected void setUser(String user) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setUser(user, false); } }
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Set the user name for all the linked files @param user
[ "Set", "the", "user", "name", "for", "all", "the", "linked", "files" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java#L155-L159
118,537
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java
HardLinkFileInfo.setGroup
protected void setGroup(String group) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setGroup(group, false); } }
java
protected void setGroup(String group) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setGroup(group, false); } }
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Set the group name for all the linked files @param group
[ "Set", "the", "group", "name", "for", "all", "the", "linked", "files" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java#L165-L169
118,538
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java
HardLinkFileInfo.setPermission
protected void setPermission(FsPermission permission) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setPermission(permission, false); } }
java
protected void setPermission(FsPermission permission) { for (INodeHardLinkFile linkedFile : linkedFiles) { linkedFile.setPermission(permission, false); } }
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Set the permission for all the linked files @param permission
[ "Set", "the", "permission", "for", "all", "the", "linked", "files" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/HardLinkFileInfo.java#L175-L179
118,539
facebookarchive/hadoop-20
src/contrib/index/src/java/org/apache/hadoop/contrib/index/lucene/RAMDirectoryUtil.java
RAMDirectoryUtil.writeRAMFiles
public static void writeRAMFiles(DataOutput out, RAMDirectory dir, String[] names) throws IOException { out.writeInt(names.length); for (int i = 0; i < names.length; i++) { Text.writeString(out, names[i]); long length = dir.fileLength(names[i]); out.writeLong(length); if...
java
public static void writeRAMFiles(DataOutput out, RAMDirectory dir, String[] names) throws IOException { out.writeInt(names.length); for (int i = 0; i < names.length; i++) { Text.writeString(out, names[i]); long length = dir.fileLength(names[i]); out.writeLong(length); if...
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Write a number of files from a ram directory to a data output. @param out the data output @param dir the ram directory @param names the names of the files to write @throws IOException
[ "Write", "a", "number", "of", "files", "from", "a", "ram", "directory", "to", "a", "data", "output", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/index/src/java/org/apache/hadoop/contrib/index/lucene/RAMDirectoryUtil.java#L44-L77
118,540
facebookarchive/hadoop-20
src/contrib/index/src/java/org/apache/hadoop/contrib/index/lucene/RAMDirectoryUtil.java
RAMDirectoryUtil.readRAMFiles
public static void readRAMFiles(DataInput in, RAMDirectory dir) throws IOException { int numFiles = in.readInt(); for (int i = 0; i < numFiles; i++) { String name = Text.readString(in); long length = in.readLong(); if (length > 0) { // can we avoid the extra copy? ...
java
public static void readRAMFiles(DataInput in, RAMDirectory dir) throws IOException { int numFiles = in.readInt(); for (int i = 0; i < numFiles; i++) { String name = Text.readString(in); long length = in.readLong(); if (length > 0) { // can we avoid the extra copy? ...
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Read a number of files from a data input to a ram directory. @param in the data input @param dir the ram directory @throws IOException
[ "Read", "a", "number", "of", "files", "from", "a", "data", "input", "to", "a", "ram", "directory", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/index/src/java/org/apache/hadoop/contrib/index/lucene/RAMDirectoryUtil.java#L85-L117
118,541
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LocalityStats.java
LocalityStats.record
public void record( TaskInProgress tip, String host, long inputBytes) { synchronized (localityRecords) { localityRecords.add(new Record(tip, host, inputBytes)); localityRecords.notify(); } }
java
public void record( TaskInProgress tip, String host, long inputBytes) { synchronized (localityRecords) { localityRecords.add(new Record(tip, host, inputBytes)); localityRecords.notify(); } }
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Asynchronous update of locality. @param tip The task. @param host The task tracker host. @param inputBytes The number of bytes processed.
[ "Asynchronous", "update", "of", "locality", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LocalityStats.java#L105-L111
118,542
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LocalityStats.java
LocalityStats.computeStatistics
private void computeStatistics(Record record) { computeStatistics(record.tip, record.host, record.inputBytes); }
java
private void computeStatistics(Record record) { computeStatistics(record.tip, record.host, record.inputBytes); }
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Peform the computation statistics based on a locality record. @param record The locality information.
[ "Peform", "the", "computation", "statistics", "based", "on", "a", "locality", "record", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LocalityStats.java#L140-L142
118,543
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LocalityStats.java
LocalityStats.computeStatistics
private void computeStatistics( TaskInProgress tip, String host, long inputBytes) { int level = this.maxLevel; String[] splitLocations = tip.getSplitLocations(); if (splitLocations.length > 0) { Node tracker = topologyCache.getNode(host); // find the right level across split locations ...
java
private void computeStatistics( TaskInProgress tip, String host, long inputBytes) { int level = this.maxLevel; String[] splitLocations = tip.getSplitLocations(); if (splitLocations.length > 0) { Node tracker = topologyCache.getNode(host); // find the right level across split locations ...
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Peform the computation statistics. @param tip The task. @param host The task tracker host. @param inputBytes The number of bytes processed.
[ "Peform", "the", "computation", "statistics", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LocalityStats.java#L150-L201
118,544
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsLoaderCurrent.java
EditsLoaderCurrent.visitTxId
private void visitTxId() throws IOException { if (LayoutVersion.supports(Feature.STORED_TXIDS, editsVersion)) { v.visitLong(EditsElement.TRANSACTION_ID); } }
java
private void visitTxId() throws IOException { if (LayoutVersion.supports(Feature.STORED_TXIDS, editsVersion)) { v.visitLong(EditsElement.TRANSACTION_ID); } }
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Visit a transaction ID, if the log version supports it.
[ "Visit", "a", "transaction", "ID", "if", "the", "log", "version", "supports", "it", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsLoaderCurrent.java#L69-L73
118,545
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsLoaderCurrent.java
EditsLoaderCurrent.visit_OP_ADD_or_OP_CLOSE
private void visit_OP_ADD_or_OP_CLOSE(FSEditLogOpCodes editsOpCode) throws IOException { visitTxId(); if (!LayoutVersion.supports(Feature.EDITLOG_OP_OPTIMIZATION, editsVersion)) { IntToken opAddLength = v.visitInt(EditsElement.LENGTH); // this happens if the edits is not properly ended...
java
private void visit_OP_ADD_or_OP_CLOSE(FSEditLogOpCodes editsOpCode) throws IOException { visitTxId(); if (!LayoutVersion.supports(Feature.EDITLOG_OP_OPTIMIZATION, editsVersion)) { IntToken opAddLength = v.visitInt(EditsElement.LENGTH); // this happens if the edits is not properly ended...
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Visit OP_ADD and OP_CLOSE, they are almost the same @param editsOpCode op code to visit
[ "Visit", "OP_ADD", "and", "OP_CLOSE", "they", "are", "almost", "the", "same" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsLoaderCurrent.java#L118-L164
118,546
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsLoaderCurrent.java
EditsLoaderCurrent.loadEdits
@Override public void loadEdits() throws IOException { try { v.start(); v.visitEnclosingElement(EditsElement.EDITS); IntToken editsVersionToken = v.visitInt(EditsElement.EDITS_VERSION); editsVersion = editsVersionToken.value; if(!canLoadVersion(editsVersion)) { throw new IO...
java
@Override public void loadEdits() throws IOException { try { v.start(); v.visitEnclosingElement(EditsElement.EDITS); IntToken editsVersionToken = v.visitInt(EditsElement.EDITS_VERSION); editsVersion = editsVersionToken.value; if(!canLoadVersion(editsVersion)) { throw new IO...
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Loads edits file, uses visitor to process all elements
[ "Loads", "edits", "file", "uses", "visitor", "to", "process", "all", "elements" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsLoaderCurrent.java#L575-L626
118,547
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/CounterGroup.java
CounterGroup.getResourceBundle
private static ResourceBundle getResourceBundle(String enumClassName) { String bundleName = enumClassName.replace('$','_'); return ResourceBundle.getBundle(bundleName); }
java
private static ResourceBundle getResourceBundle(String enumClassName) { String bundleName = enumClassName.replace('$','_'); return ResourceBundle.getBundle(bundleName); }
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Returns the specified resource bundle, or throws an exception. @throws MissingResourceException if the bundle isn't found
[ "Returns", "the", "specified", "resource", "bundle", "or", "throws", "an", "exception", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/CounterGroup.java#L48-L51
118,548
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/CounterGroup.java
CounterGroup.findCounter
protected Counter findCounter(String counterName, String displayName) { Counter result = counters.get(counterName); if (result == null) { result = new Counter(counterName, displayName); counters.put(counterName, result); } return result; }
java
protected Counter findCounter(String counterName, String displayName) { Counter result = counters.get(counterName); if (result == null) { result = new Counter(counterName, displayName); counters.put(counterName, result); } return result; }
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Internal to find a counter in a group. @param counterName the name of the counter @param displayName the display name of the counter @return the counter that was found or added
[ "Internal", "to", "find", "a", "counter", "in", "a", "group", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/CounterGroup.java#L94-L101
118,549
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/CounterGroup.java
CounterGroup.localize
private String localize(String key, String defaultValue) { String result = defaultValue; if (bundle != null) { try { result = bundle.getString(key); } catch (MissingResourceException mre) { } } return result; }
java
private String localize(String key, String defaultValue) { String result = defaultValue; if (bundle != null) { try { result = bundle.getString(key); } catch (MissingResourceException mre) { } } return result; }
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Looks up key in the ResourceBundle and returns the corresponding value. If the bundle or the key doesn't exist, returns the default value.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/CounterGroup.java#L140-L150
118,550
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.getDefaultAddress
public static String getDefaultAddress(Configuration conf) { URI uri = FileSystem.getDefaultUri(conf); String authority = uri.getAuthority(); if (authority == null) { throw new IllegalArgumentException(String.format( "Invalid URI for NameNode address (check %s): %s has no authority.", ...
java
public static String getDefaultAddress(Configuration conf) { URI uri = FileSystem.getDefaultUri(conf); String authority = uri.getAuthority(); if (authority == null) { throw new IllegalArgumentException(String.format( "Invalid URI for NameNode address (check %s): %s has no authority.", ...
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Returns the fs.default name from the configuration as a string for znode name retrieval without a DNS lookup. @param conf @return
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L351-L360
118,551
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.initialize
protected void initialize() throws IOException { // set service-level authorization security policy if (serviceAuthEnabled = getConf().getBoolean( ServiceAuthorizationManager.SERVICE_AUTHORIZATION_CONFIG, false)) { PolicyProvider policyProvider = (PolicyProvider)(ReflectionUtil...
java
protected void initialize() throws IOException { // set service-level authorization security policy if (serviceAuthEnabled = getConf().getBoolean( ServiceAuthorizationManager.SERVICE_AUTHORIZATION_CONFIG, false)) { PolicyProvider policyProvider = (PolicyProvider)(ReflectionUtil...
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Initialize name-node.
[ "Initialize", "name", "-", "node", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L371-L404
118,552
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.adjustMetaDirectoryNames
protected static void adjustMetaDirectoryNames(Configuration conf, String serviceKey) { adjustMetaDirectoryName(conf, DFS_NAMENODE_NAME_DIR_KEY, serviceKey); adjustMetaDirectoryName(conf, DFS_NAMENODE_EDITS_DIR_KEY, serviceKey); adjustMetaDirectoryName(conf, DFS_NAMENODE_CHECKPOINT_DIR_KEY, serviceKey); ...
java
protected static void adjustMetaDirectoryNames(Configuration conf, String serviceKey) { adjustMetaDirectoryName(conf, DFS_NAMENODE_NAME_DIR_KEY, serviceKey); adjustMetaDirectoryName(conf, DFS_NAMENODE_EDITS_DIR_KEY, serviceKey); adjustMetaDirectoryName(conf, DFS_NAMENODE_CHECKPOINT_DIR_KEY, serviceKey); ...
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Append service name to each meta directory name @param conf configuration of NameNode @param serviceKey the non-empty name of the name node service
[ "Append", "service", "name", "to", "each", "meta", "directory", "name" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L570-L576
118,553
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.stopRPC
protected void stopRPC(boolean interruptClientHandlers) throws IOException, InterruptedException { // stop client handlers stopRPCInternal(server, "client", interruptClientHandlers); // stop datanode handlers stopRPCInternal(dnProtocolServer, "datanode", interruptClientHandlers); // waiting ...
java
protected void stopRPC(boolean interruptClientHandlers) throws IOException, InterruptedException { // stop client handlers stopRPCInternal(server, "client", interruptClientHandlers); // stop datanode handlers stopRPCInternal(dnProtocolServer, "datanode", interruptClientHandlers); // waiting ...
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Quiescess all communication to namenode cleanly. Ensures all RPC handlers have exited. @param interruptClientHandlers should the handlers be interrupted
[ "Quiescess", "all", "communication", "to", "namenode", "cleanly", ".", "Ensures", "all", "RPC", "handlers", "have", "exited", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L674-L685
118,554
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.stop
public void stop() { if (stopRequested) return; stopRequested = true; LOG.info("Stopping http server"); try { if (httpServer != null) httpServer.stop(); } catch (Exception e) { LOG.error(StringUtils.stringifyException(e)); } LOG.info("Stopping namesystem"); if(namesyst...
java
public void stop() { if (stopRequested) return; stopRequested = true; LOG.info("Stopping http server"); try { if (httpServer != null) httpServer.stop(); } catch (Exception e) { LOG.error(StringUtils.stringifyException(e)); } LOG.info("Stopping namesystem"); if(namesyst...
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Stop all NameNode threads and wait for all to finish.
[ "Stop", "all", "NameNode", "threads", "and", "wait", "for", "all", "to", "finish", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L708-L738
118,555
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.addBlock
public LocatedBlock addBlock(String src, String clientName) throws IOException { return addBlock(src, clientName, null); }
java
public LocatedBlock addBlock(String src, String clientName) throws IOException { return addBlock(src, clientName, null); }
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Stub for 0.20 clients that don't support HDFS-630
[ "Stub", "for", "0", ".", "20", "clients", "that", "don", "t", "support", "HDFS", "-", "630" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L954-L957
118,556
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.abandonBlock
public void abandonBlock(Block b, String src, String holder ) throws IOException { abandonBlockInternal(b, src, holder); }
java
public void abandonBlock(Block b, String src, String holder ) throws IOException { abandonBlockInternal(b, src, holder); }
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The client needs to give up on the block.
[ "The", "client", "needs", "to", "give", "up", "on", "the", "block", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L1059-L1062
118,557
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.sendHeartbeat
public DatanodeCommand[] sendHeartbeat(DatanodeRegistration nodeReg, long capacity, long dfsUsed, long remaining, long namespaceUsed, ...
java
public DatanodeCommand[] sendHeartbeat(DatanodeRegistration nodeReg, long capacity, long dfsUsed, long remaining, long namespaceUsed, ...
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Data node notify the name node that it is alive Return an array of block-oriented commands for the datanode to execute. This will be either a transfer or a delete operation.
[ "Data", "node", "notify", "the", "name", "node", "that", "it", "is", "alive", "Return", "an", "array", "of", "block", "-", "oriented", "commands", "for", "the", "datanode", "to", "execute", ".", "This", "will", "be", "either", "a", "transfer", "or", "a",...
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L1624-L1635
118,558
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.blocksBeingWrittenReport
public void blocksBeingWrittenReport(DatanodeRegistration nodeReg, BlockReport blocks) throws IOException { verifyRequest(nodeReg); long[] blocksAsLong = blocks.getBlockReportInLongs(); BlockListAsLongs blist = new BlockListAsLongs(blocksAsLong); boolean processed = namesystem.processBlocksBeingWr...
java
public void blocksBeingWrittenReport(DatanodeRegistration nodeReg, BlockReport blocks) throws IOException { verifyRequest(nodeReg); long[] blocksAsLong = blocks.getBlockReportInLongs(); BlockListAsLongs blist = new BlockListAsLongs(blocksAsLong); boolean processed = namesystem.processBlocksBeingWr...
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add new replica blocks to the Inode to target mapping also add the Inode file to DataNodeDesc
[ "add", "new", "replica", "blocks", "to", "the", "Inode", "to", "target", "mapping", "also", "add", "the", "Inode", "file", "to", "DataNodeDesc" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L1641-L1654
118,559
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.verifyRequest
public void verifyRequest(DatanodeRegistration nodeReg) throws IOException { verifyVersion(nodeReg.getVersion(), LAYOUT_VERSION, "layout"); // The ctime of the namenode has to be greater than or equal to the ctime of // the datanode. The ctime of the namenode is updated when it is upgraded // and only t...
java
public void verifyRequest(DatanodeRegistration nodeReg) throws IOException { verifyVersion(nodeReg.getVersion(), LAYOUT_VERSION, "layout"); // The ctime of the namenode has to be greater than or equal to the ctime of // the datanode. The ctime of the namenode is updated when it is upgraded // and only t...
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Verify request. Verifies correctness of the datanode layout version, namespace ID and cTime . We support a higher layout version for the datanode and a lower or equal cTime for the datanode, but the namespace Id has to match. @param nodeReg data node registration @throws IOException
[ "Verify", "request", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L1751-L1765
118,560
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.verifyVersion
public static void verifyVersion(int reportedVersion, int expectedVersion, String annotation) throws IOException { if ((reportedVersion ^ expectedVersion) < 0) { throw new IOException("reportedVersion and expectedVersion have" + " different signs : " + reportedVersion + ", " + expectedVersion)...
java
public static void verifyVersion(int reportedVersion, int expectedVersion, String annotation) throws IOException { if ((reportedVersion ^ expectedVersion) < 0) { throw new IOException("reportedVersion and expectedVersion have" + " different signs : " + reportedVersion + ", " + expectedVersion)...
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Verify version. @param reportedVersion version reported by datanode @param expectedVersion version expected by namenode @param annotation explanation of the given version @throws IncorrectVersionException
[ "Verify", "version", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L1775-L1786
118,561
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.getRandomFilesSample
public List<FileStatusExtended> getRandomFilesSample(double percentage) { if (!(percentage > 0 && percentage <= 1.0)) { throw new IllegalArgumentException("Invalid percentage : " + percentage + " value should be between (0 - 1.0]"); } LOG.info("Sampling : " + (percentage * 100) + " percent o...
java
public List<FileStatusExtended> getRandomFilesSample(double percentage) { if (!(percentage > 0 && percentage <= 1.0)) { throw new IllegalArgumentException("Invalid percentage : " + percentage + " value should be between (0 - 1.0]"); } LOG.info("Sampling : " + (percentage * 100) + " percent o...
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Get a sample of the total files in the FileSystem. The sampling is done randomly. @param percentage the percentage of files to sample, value should be between (0 - 1.0] @return the list of files
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L1809-L1816
118,562
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.format
static boolean format(Configuration conf, boolean force, boolean isConfirmationNeeded ) throws IOException { boolean allowFormat = conf.getBoolean("dfs.namenode.support.allowformat", ...
java
static boolean format(Configuration conf, boolean force, boolean isConfirmationNeeded ) throws IOException { boolean allowFormat = conf.getBoolean("dfs.namenode.support.allowformat", ...
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Verify that configured directories exist, then Interactively confirm that formatting is desired for each existing directory and format them. @param conf @param isConfirmationNeeded @return true if formatting was aborted, false otherwise @throws IOException
[ "Verify", "that", "configured", "directories", "exist", "then", "Interactively", "confirm", "that", "formatting", "is", "desired", "for", "each", "existing", "directory", "and", "format", "them", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L1870-L1898
118,563
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.validateServiceName
public static boolean validateServiceName(Configuration conf, String nameServiceId) { Collection<String> nameserviceIds = DFSUtil.getNameServiceIds(conf); if (nameserviceIds != null && !nameserviceIds.isEmpty()) { if (nameServiceId == null) { System.err.println("Need to input a nameservice i...
java
public static boolean validateServiceName(Configuration conf, String nameServiceId) { Collection<String> nameserviceIds = DFSUtil.getNameServiceIds(conf); if (nameserviceIds != null && !nameserviceIds.isEmpty()) { if (nameServiceId == null) { System.err.println("Need to input a nameservice i...
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Valide if the input service name is valid @param conf configuration @param nameServiceId name service id @return true if valid; false otherwise
[ "Valide", "if", "the", "input", "service", "name", "is", "valid" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L2006-L2022
118,564
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java
NameNode.validateCheckpointerAddress
protected void validateCheckpointerAddress(InetAddress configuredRemoteAddress) throws IOException { InetAddress remoteAddress = Server.getRemoteIp(); InjectionHandler.processEvent(InjectionEvent.NAMENODE_VERIFY_CHECKPOINTER, remoteAddress); LOG.info("Verify: received request from: " + remote...
java
protected void validateCheckpointerAddress(InetAddress configuredRemoteAddress) throws IOException { InetAddress remoteAddress = Server.getRemoteIp(); InjectionHandler.processEvent(InjectionEvent.NAMENODE_VERIFY_CHECKPOINTER, remoteAddress); LOG.info("Verify: received request from: " + remote...
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Checks if the ip of the caller is equal to the given configured address. @param configuredRemoteAddress @throws IOException
[ "Checks", "if", "the", "ip", "of", "the", "caller", "is", "equal", "to", "the", "given", "configured", "address", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NameNode.java#L2295-L2325
118,565
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/tools/FastFileCheck.java
FastFileCheck.checkFile
public static boolean checkFile(Configuration conf, FileSystem srcFs, FileSystem parityFs, Path srcPath, Path parityPath, Codec codec, Progressable reporter, boolean sourceOnly) throws IOException, InterruptedException { FileStatus stat = srcFs.getFileStatus(srcPath); long bl...
java
public static boolean checkFile(Configuration conf, FileSystem srcFs, FileSystem parityFs, Path srcPath, Path parityPath, Codec codec, Progressable reporter, boolean sourceOnly) throws IOException, InterruptedException { FileStatus stat = srcFs.getFileStatus(srcPath); long bl...
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Check a file.
[ "Check", "a", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/tools/FastFileCheck.java#L308-L340
118,566
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/tools/FastFileCheck.java
FastFileCheck.verifyFile
private static boolean verifyFile(Configuration conf, FileSystem srcFs, FileSystem parityFs, FileStatus stat, Path parityPath, Codec codec, long blockOffset, Progressable reporter) throws IOException, InterruptedException { Path srcPath = stat.getPath(); LOG.info("Verify file: " + srcPath...
java
private static boolean verifyFile(Configuration conf, FileSystem srcFs, FileSystem parityFs, FileStatus stat, Path parityPath, Codec codec, long blockOffset, Progressable reporter) throws IOException, InterruptedException { Path srcPath = stat.getPath(); LOG.info("Verify file: " + srcPath...
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Verify the certain offset of a file.
[ "Verify", "the", "certain", "offset", "of", "a", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/tools/FastFileCheck.java#L433-L499
118,567
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/FileInputFormat.java
FileInputFormat.addLocatedInputPathRecursively
protected void addLocatedInputPathRecursively(List<LocatedFileStatus> result, FileSystem fs, Path path, PathFilter inputFilter) throws IOException { for(RemoteIterator<LocatedFileStatus> itor = fs.listLocatedStatus(path, inputFilter); itor.hasNext();) { LocatedFileStatus stat = itor.next()...
java
protected void addLocatedInputPathRecursively(List<LocatedFileStatus> result, FileSystem fs, Path path, PathFilter inputFilter) throws IOException { for(RemoteIterator<LocatedFileStatus> itor = fs.listLocatedStatus(path, inputFilter); itor.hasNext();) { LocatedFileStatus stat = itor.next()...
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Add files in the input path recursively into the results. @param result The List to store all files together with their block locations @param fs The FileSystem. @param path The input path. @param inputFilter The input filter that can be used to filter files/dirs. @throws IOException
[ "Add", "files", "in", "the", "input", "path", "recursively", "into", "the", "results", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/FileInputFormat.java#L251-L263
118,568
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/FileInputFormat.java
FileInputFormat.getPathStrings
private static String[] getPathStrings(String commaSeparatedPaths) { int length = commaSeparatedPaths.length(); int curlyOpen = 0; int pathStart = 0; boolean globPattern = false; List<String> pathStrings = new ArrayList<String>(); for (int i=0; i<length; i++) { char ch = commaSeparate...
java
private static String[] getPathStrings(String commaSeparatedPaths) { int length = commaSeparatedPaths.length(); int curlyOpen = 0; int pathStart = 0; boolean globPattern = false; List<String> pathStrings = new ArrayList<String>(); for (int i=0; i<length; i++) { char ch = commaSeparate...
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This method escapes commas in the glob pattern of the given paths.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/FileInputFormat.java#L555-L591
118,569
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/FileInputFormat.java
FileInputFormat.getSplitHosts
protected String[] getSplitHosts(BlockLocation[] blkLocations, long offset, long splitSize, NetworkTopology clusterMap) throws IOException { int startIndex = getBlockIndex(blkLocations, offset); long bytesInThisBlock = blkLocations[startIndex].getOffset() + blkLocations[sta...
java
protected String[] getSplitHosts(BlockLocation[] blkLocations, long offset, long splitSize, NetworkTopology clusterMap) throws IOException { int startIndex = getBlockIndex(blkLocations, offset); long bytesInThisBlock = blkLocations[startIndex].getOffset() + blkLocations[sta...
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This function identifies and returns the hosts that contribute most for a given split. For calculating the contribution, rack locality is treated on par with host locality, so hosts from racks that contribute the most are preferred over hosts on racks that contribute less @param blkLocations The list of block locations...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/FileInputFormat.java#L640-L739
118,570
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java
CoronaTaskLauncher.killJob
@SuppressWarnings("deprecation") public void killJob(JobID jobId, Map<String, InetAddress> allTrackers) { for (Map.Entry<String, InetAddress> entry : allTrackers.entrySet()) { String trackerName = entry.getKey(); InetAddress addr = entry.getValue(); String description = "KillJobAction " + jobId;...
java
@SuppressWarnings("deprecation") public void killJob(JobID jobId, Map<String, InetAddress> allTrackers) { for (Map.Entry<String, InetAddress> entry : allTrackers.entrySet()) { String trackerName = entry.getKey(); InetAddress addr = entry.getValue(); String description = "KillJobAction " + jobId;...
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Enqueue an action to kill the job. @param jobId The job identifier. @param allTrackers All trackers to send the kill to.
[ "Enqueue", "an", "action", "to", "kill", "the", "job", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java#L92-L104
118,571
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java
CoronaTaskLauncher.killTasks
public void killTasks( String trackerName, InetAddress addr, List<KillTaskAction> killActions) { for (KillTaskAction killAction : killActions) { String description = "KillTaskAction " + killAction.getTaskID(); LOG.info("Queueing " + description + " to worker " + trackerName + "(" + addr.ho...
java
public void killTasks( String trackerName, InetAddress addr, List<KillTaskAction> killActions) { for (KillTaskAction killAction : killActions) { String description = "KillTaskAction " + killAction.getTaskID(); LOG.info("Queueing " + description + " to worker " + trackerName + "(" + addr.ho...
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Enqueue kill tasks actions. @param trackerName The name of the tracker to send the kill actions to. @param addr The address of the tracker to send the kill actions to. @param killActions The kill actions to send.
[ "Enqueue", "kill", "tasks", "actions", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java#L112-L121
118,572
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java
CoronaTaskLauncher.commitTask
public void commitTask( String trackerName, InetAddress addr, CommitTaskAction action) { String description = "KillTaskAction " + action.getTaskID(); LOG.info("Queueing " + description + " to worker " + trackerName + "(" + addr.host + ":" + addr.port + ")"); allWorkQueues.enqueueAction(new Actio...
java
public void commitTask( String trackerName, InetAddress addr, CommitTaskAction action) { String description = "KillTaskAction " + action.getTaskID(); LOG.info("Queueing " + description + " to worker " + trackerName + "(" + addr.host + ":" + addr.port + ")"); allWorkQueues.enqueueAction(new Actio...
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Enqueue a commit task action. @param trackerName The name of the tracker to send the commit action to. @param addr The address of the tracker to send the commit action to. @param action The commit action to send.
[ "Enqueue", "a", "commit", "task", "action", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java#L129-L136
118,573
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java
CoronaTaskLauncher.launchTask
public void launchTask(Task task, String trackerName, InetAddress addr) { CoronaSessionInfo info = new CoronaSessionInfo( coronaJT.getSessionId(), coronaJT.getJobTrackerAddress(), coronaJT.getSecondaryTrackerAddress()); LaunchTaskAction action = new LaunchTaskAction(task, info); String descripti...
java
public void launchTask(Task task, String trackerName, InetAddress addr) { CoronaSessionInfo info = new CoronaSessionInfo( coronaJT.getSessionId(), coronaJT.getJobTrackerAddress(), coronaJT.getSecondaryTrackerAddress()); LaunchTaskAction action = new LaunchTaskAction(task, info); String descripti...
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Enqueue a launch task action. @param task The task to launch. @param trackerName The name of the tracker to send the task to. @param addr The address of the tracker to send the task to.
[ "Enqueue", "a", "launch", "task", "action", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskLauncher.java#L154-L165
118,574
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java
NamespaceNotifierClient.connectionStateChanged
boolean connectionStateChanged(int newState) { switch (newState) { case ConnectionManager.CONNECTED: LOG.info(listeningPort + ": Switched to CONNECTED state."); // Try to resubscribe all the watched events try { return resubscribe(); } catch (Exception e) { ...
java
boolean connectionStateChanged(int newState) { switch (newState) { case ConnectionManager.CONNECTED: LOG.info(listeningPort + ": Switched to CONNECTED state."); // Try to resubscribe all the watched events try { return resubscribe(); } catch (Exception e) { ...
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Called by the ConnectionManager when the connection state changed. The connection lock is hold when calling this method, so no other methods from the ConnectionManager should be called here. @param newState the new state @return when the new state is DISCONNECTED_HIDDEN or DISCONNECTED_VISIBLE, then the return value i...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java#L186-L208
118,575
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java
NamespaceNotifierClient.removeWatch
public void removeWatch(String path, EventType watchType) throws NotConnectedToServerException, InterruptedException, WatchNotPlacedException { NamespaceEvent event = new NamespaceEvent(path, watchType.getByteValue()); NamespaceEventKey eventKey = new NamespaceEventKey(path, watchType); Object c...
java
public void removeWatch(String path, EventType watchType) throws NotConnectedToServerException, InterruptedException, WatchNotPlacedException { NamespaceEvent event = new NamespaceEvent(path, watchType.getByteValue()); NamespaceEventKey eventKey = new NamespaceEventKey(path, watchType); Object c...
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Removes a previously placed watch for a particular event type from the given path. If the watch is not actually present at that path before calling the method, nothing will happen. To remove the watch for all event types at this path, use {@link #removeAllWatches(String)}. @param path the path from which the watch is...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java#L356-L396
118,576
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java
NamespaceNotifierClient.haveWatch
public boolean haveWatch(String path, EventType watchType) { return watchedEvents.containsKey(new NamespaceEventKey(path, watchType)); }
java
public boolean haveWatch(String path, EventType watchType) { return watchedEvents.containsKey(new NamespaceEventKey(path, watchType)); }
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Tests if a watch is placed at the given path and of the given type. @param path the path where we should test if a watch is placed. For the FILE_ADDED event type, this represents the path of the directory under which the file will be created. @param watchType the type of the event for which we test if a watch is prese...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java#L410-L412
118,577
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java
NamespaceNotifierClient.resubscribe
private boolean resubscribe() throws TransactionIdTooOldException, InterruptedException { for (NamespaceEventKey eventKey : watchedEvents.keySet()) { NamespaceEvent event = eventKey.getEvent(); if (!subscribe(event.getPath(), EventType.fromByteValue(event.getType()), watchedEvents.get(e...
java
private boolean resubscribe() throws TransactionIdTooOldException, InterruptedException { for (NamespaceEventKey eventKey : watchedEvents.keySet()) { NamespaceEvent event = eventKey.getEvent(); if (!subscribe(event.getPath(), EventType.fromByteValue(event.getType()), watchedEvents.get(e...
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Called right after a reconnect to resubscribe to all events. Must be called with the connection lock acquired.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java#L428-L438
118,578
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java
ConnectionManager.waitForTransparentConnect
void waitForTransparentConnect() throws InterruptedException, NotConnectedToServerException { if (state == DISCONNECTED_VISIBLE) { LOG.warn(listeningPort + ": waitForTransparentConnect: got visible" + " disconnected state"); throw new NotConnectedToServerException(); } // Wa...
java
void waitForTransparentConnect() throws InterruptedException, NotConnectedToServerException { if (state == DISCONNECTED_VISIBLE) { LOG.warn(listeningPort + ": waitForTransparentConnect: got visible" + " disconnected state"); throw new NotConnectedToServerException(); } // Wa...
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Must be called holding the connection lock returned by getConnectionLock. It waits until the current connection state is CONNECTED. If it ever gets to DISCONNECTED_VISIBLE it will raise an exception. If the current state is CONNECTED, then it will return without waiting. @throws InterruptedException @throws NotConnect...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/NamespaceNotifierClient.java#L766-L788
118,579
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/ProtocolProxy.java
ProtocolProxy.isMethodSupported
public boolean isMethodSupported(String methodName, Class<?>... parameterTypes) throws IOException { if (serverMethods == null) { // client & server have the same protocol return true; } Method method; try { method = protocol.getDeclaredMethod(methodName,...
java
public boolean isMethodSupported(String methodName, Class<?>... parameterTypes) throws IOException { if (serverMethods == null) { // client & server have the same protocol return true; } Method method; try { method = protocol.getDeclaredMethod(methodName,...
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Check if a method is supported by the server or not @param methodName a method's name in String format @param parameterTypes a method's parameter types @return true if the method is supported by the server
[ "Check", "if", "a", "method", "is", "supported", "by", "the", "server", "or", "not" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/ProtocolProxy.java#L76-L92
118,580
facebookarchive/hadoop-20
src/examples/org/apache/hadoop/examples/terasort/TeraInputFormat.java
TeraInputFormat.writePartitionFile
public static void writePartitionFile(JobConf conf, Path partFile) throws IOException { TeraInputFormat inFormat = new TeraInputFormat(); TextSampler sampler = new TextSampler(); Text key = new Text(); Text value = new Text(); int partitions = conf.getNumRedu...
java
public static void writePartitionFile(JobConf conf, Path partFile) throws IOException { TeraInputFormat inFormat = new TeraInputFormat(); TextSampler sampler = new TextSampler(); Text key = new Text(); Text value = new Text(); int partitions = conf.getNumRedu...
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Use the input splits to take samples of the input and generate sample keys. By default reads 100,000 keys from 10 locations in the input, sorts them and picks N-1 keys to generate N equally sized partitions. @param conf the job to sample @param partFile where to write the output file to @throws IOException if something...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/examples/org/apache/hadoop/examples/terasort/TeraInputFormat.java#L108-L145
118,581
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ReflectionUtils.java
ReflectionUtils.setConf
public static void setConf(Object theObject, Configuration conf, boolean supportJobConf) { if (conf != null) { if (theObject instanceof Configurable) { ((Configurable) theObject).setConf(conf); } if (supportJobConf) { setJobConf(theObject, conf); } } }
java
public static void setConf(Object theObject, Configuration conf, boolean supportJobConf) { if (conf != null) { if (theObject instanceof Configurable) { ((Configurable) theObject).setConf(conf); } if (supportJobConf) { setJobConf(theObject, conf); } } }
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Check and set 'configuration' if necessary. @param theObject object for which to set configuration @param conf Configuration @param supportJobConf whether needs to configure old jobConf in an older way
[ "Check", "and", "set", "configuration", "if", "necessary", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ReflectionUtils.java#L70-L80
118,582
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ReflectionUtils.java
ReflectionUtils.newInstance
public static <T> T newInstance(Class<T> theClass, Class<?>[] parameterTypes, Object[] initargs) { // Perform some sanity checks on the arguments. if (parameterTypes.length != initargs.length) { throw new IllegalArgumentException( "Constructor parameter types don't match constructor argume...
java
public static <T> T newInstance(Class<T> theClass, Class<?>[] parameterTypes, Object[] initargs) { // Perform some sanity checks on the arguments. if (parameterTypes.length != initargs.length) { throw new IllegalArgumentException( "Constructor parameter types don't match constructor argume...
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Create an object for the given class. @param theClass class of which an object is created @param parameterTypes an array of parameterTypes for the constructor @param initargs the list of arguments for the constructor @return a new object
[ "Create", "an", "object", "for", "the", "given", "class", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ReflectionUtils.java#L160-L182
118,583
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ReflectionUtils.java
ReflectionUtils.logThreadInfo
public static void logThreadInfo(Log log, String title, long minInterval) { boolean dumpStack = false; if (log.isInfoEnabled()) { synchronized (ReflectionUtils.class) { long now = System.currentTimeMillis(); if (now - pr...
java
public static void logThreadInfo(Log log, String title, long minInterval) { boolean dumpStack = false; if (log.isInfoEnabled()) { synchronized (ReflectionUtils.class) { long now = System.currentTimeMillis(); if (now - pr...
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Log the current thread stacks at INFO level. @param log the logger that logs the stack trace @param title a descriptive title for the call stacks @param minInterval the minimum time from the last
[ "Log", "the", "current", "thread", "stacks", "at", "INFO", "level", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ReflectionUtils.java#L252-L270
118,584
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java
NNStorageDirectoryRetentionManager.backupFiles
public static void backupFiles(FileSystem fs, File dest, Configuration conf) throws IOException { // check if we can still backup cleanUpAndCheckBackup(conf, dest); int MAX_ATTEMPT = 3; for (int i = 0; i < MAX_ATTEMPT; i++) { try { String mdate = dateForm.get().format(new Date(...
java
public static void backupFiles(FileSystem fs, File dest, Configuration conf) throws IOException { // check if we can still backup cleanUpAndCheckBackup(conf, dest); int MAX_ATTEMPT = 3; for (int i = 0; i < MAX_ATTEMPT; i++) { try { String mdate = dateForm.get().format(new Date(...
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Backup given directory. Enforce that max number of backups has not been reached.
[ "Backup", "given", "directory", ".", "Enforce", "that", "max", "number", "of", "backups", "has", "not", "been", "reached", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java#L83-L112
118,585
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java
NNStorageDirectoryRetentionManager.cleanUpAndCheckBackup
static void cleanUpAndCheckBackup(Configuration conf, File origin) throws IOException { // get all backups String[] backups = getBackups(origin); File root = origin.getParentFile(); // maximum total number of backups int copiesToKeep = conf.getInt(NN_IMAGE_COPIES_TOKEEP, NN_IMAGE_COPIES...
java
static void cleanUpAndCheckBackup(Configuration conf, File origin) throws IOException { // get all backups String[] backups = getBackups(origin); File root = origin.getParentFile(); // maximum total number of backups int copiesToKeep = conf.getInt(NN_IMAGE_COPIES_TOKEEP, NN_IMAGE_COPIES...
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Check if we have not exceeded the maximum number of backups.
[ "Check", "if", "we", "have", "not", "exceeded", "the", "maximum", "number", "of", "backups", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java#L118-L146
118,586
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java
NNStorageDirectoryRetentionManager.deleteOldBackups
static void deleteOldBackups(File root, String[] backups, int daysToKeep, int copiesToKeep) { Date now = new Date(System.currentTimeMillis()); // leave the copiesToKeep-1 at least (+1 will be the current backup) int maxIndex = Math.max(0, backups.length - copiesToKeep + 1); for (int i = ...
java
static void deleteOldBackups(File root, String[] backups, int daysToKeep, int copiesToKeep) { Date now = new Date(System.currentTimeMillis()); // leave the copiesToKeep-1 at least (+1 will be the current backup) int maxIndex = Math.max(0, backups.length - copiesToKeep + 1); for (int i = ...
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Delete backups according to the retention policy. @param root root directory @param backups backups SORTED on the timestamp from oldest to newest @param daysToKeep @param copiesToKeep
[ "Delete", "backups", "according", "to", "the", "retention", "policy", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java#L156-L197
118,587
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java
NNStorageDirectoryRetentionManager.getBackups
static String[] getBackups(File origin) { File root = origin.getParentFile(); final String originName = origin.getName(); String[] backups = root.list(new FilenameFilter() { @Override public boolean accept(File dir, String name) { if (!name.startsWith(originName + File.pathSeparator...
java
static String[] getBackups(File origin) { File root = origin.getParentFile(); final String originName = origin.getName(); String[] backups = root.list(new FilenameFilter() { @Override public boolean accept(File dir, String name) { if (!name.startsWith(originName + File.pathSeparator...
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List all directories that match the backup pattern. Sort from oldest to newest.
[ "List", "all", "directories", "that", "match", "the", "backup", "pattern", ".", "Sort", "from", "oldest", "to", "newest", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorageDirectoryRetentionManager.java#L203-L241
118,588
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.doImportCheckpoint
void doImportCheckpoint() throws IOException { Collection<URI> checkpointDirs = NNStorageConfiguration.getCheckpointDirs(conf, null); Collection<URI> checkpointEditsDirs = NNStorageConfiguration.getCheckpointEditsDirs(conf, null); if (checkpointDirs == null || checkpointDirs.isEmpty()) { ...
java
void doImportCheckpoint() throws IOException { Collection<URI> checkpointDirs = NNStorageConfiguration.getCheckpointDirs(conf, null); Collection<URI> checkpointEditsDirs = NNStorageConfiguration.getCheckpointEditsDirs(conf, null); if (checkpointDirs == null || checkpointDirs.isEmpty()) { ...
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Load image from a checkpoint directory and save it into the current one. @param target the NameSystem to import into @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L606-L644
118,589
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.loadFSImage
protected void loadFSImage(ImageInputStream iis, File imageFile) throws IOException { MD5Hash expectedMD5 = MD5FileUtils.readStoredMd5ForFile(imageFile); if (expectedMD5 == null) { throw new IOException("No MD5 file found corresponding to image file " + imageFile); } iis.setImageDigest(e...
java
protected void loadFSImage(ImageInputStream iis, File imageFile) throws IOException { MD5Hash expectedMD5 = MD5FileUtils.readStoredMd5ForFile(imageFile); if (expectedMD5 == null) { throw new IOException("No MD5 file found corresponding to image file " + imageFile); } iis.setImageDigest(e...
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Load the image namespace from the given image file, verifying it against the MD5 sum stored in its associated .md5 file.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L825-L833
118,590
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.getParent
String getParent(String path) { return path.substring(0, path.lastIndexOf(Path.SEPARATOR)); }
java
String getParent(String path) { return path.substring(0, path.lastIndexOf(Path.SEPARATOR)); }
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Return string representing the parent of the given path.
[ "Return", "string", "representing", "the", "parent", "of", "the", "given", "path", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L861-L863
118,591
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.loadEdits
protected long loadEdits(Iterable<EditLogInputStream> editStreams) throws IOException { long lastAppliedTxId = storage.getMostRecentCheckpointTxId(); int numLoaded = 0; FSEditLogLoader loader = new FSEditLogLoader(namesystem); // Load latest edits for (EditLogInputStream editIn : edit...
java
protected long loadEdits(Iterable<EditLogInputStream> editStreams) throws IOException { long lastAppliedTxId = storage.getMostRecentCheckpointTxId(); int numLoaded = 0; FSEditLogLoader loader = new FSEditLogLoader(namesystem); // Load latest edits for (EditLogInputStream editIn : edit...
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Load the specified list of edit files into the image. @return the txid of the current transaction (next to be loaded
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L878-L899
118,592
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.saveFSImage
void saveFSImage(SaveNamespaceContext context, ImageManager im, boolean forceUncompressed) throws IOException { long txid = context.getTxId(); OutputStream os = im.getCheckpointOutputStream(txid); FSImageFormat.Saver saver = new FSImageFormat.Saver(context); FSImageCompression compression = ...
java
void saveFSImage(SaveNamespaceContext context, ImageManager im, boolean forceUncompressed) throws IOException { long txid = context.getTxId(); OutputStream os = im.getCheckpointOutputStream(txid); FSImageFormat.Saver saver = new FSImageFormat.Saver(context); FSImageCompression compression = ...
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Save the contents of the FS image to the file.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L914-L927
118,593
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.saveNamespace
public synchronized void saveNamespace(boolean forUncompressed) throws IOException { InjectionHandler .processEvent(InjectionEvent.FSIMAGE_STARTING_SAVE_NAMESPACE); if (editLog == null) { throw new IOException("editLog must be initialized"); } storage.attemptRestoreRemovedSt...
java
public synchronized void saveNamespace(boolean forUncompressed) throws IOException { InjectionHandler .processEvent(InjectionEvent.FSIMAGE_STARTING_SAVE_NAMESPACE); if (editLog == null) { throw new IOException("editLog must be initialized"); } storage.attemptRestoreRemovedSt...
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Save the contents of the FS image to a new image file in each of the current storage directories.
[ "Save", "the", "contents", "of", "the", "FS", "image", "to", "a", "new", "image", "file", "in", "each", "of", "the", "current", "storage", "directories", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L977-L1015
118,594
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.confirmFormat
boolean confirmFormat(boolean force, boolean interactive) throws IOException { List<FormatConfirmable> confirms = Lists.newArrayList(); for (StorageDirectory sd : storage.dirIterable(null)) { confirms.add(sd); } confirms.addAll(editLog.getFormatConfirmables()); return Storage.confirmFormat(...
java
boolean confirmFormat(boolean force, boolean interactive) throws IOException { List<FormatConfirmable> confirms = Lists.newArrayList(); for (StorageDirectory sd : storage.dirIterable(null)) { confirms.add(sd); } confirms.addAll(editLog.getFormatConfirmables()); return Storage.confirmFormat(...
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Check whether the storage directories and non-file journals exist. If running in interactive mode, will prompt the user for each directory to allow them to format anyway. Otherwise, returns false, unless 'force' is specified. @param interactive prompt the user when a dir exists @return true if formatting should procee...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L1112-L1119
118,595
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.rollFSImage
void rollFSImage(CheckpointSignature sig) throws IOException { long start = System.nanoTime(); sig.validateStorageInfo(this.storage); saveDigestAndRenameCheckpointImage(sig.mostRecentCheckpointTxId, sig.imageDigest); long rollTime = DFSUtil.getElapsedTimeMicroSeconds(start); if (metrics !=...
java
void rollFSImage(CheckpointSignature sig) throws IOException { long start = System.nanoTime(); sig.validateStorageInfo(this.storage); saveDigestAndRenameCheckpointImage(sig.mostRecentCheckpointTxId, sig.imageDigest); long rollTime = DFSUtil.getElapsedTimeMicroSeconds(start); if (metrics !=...
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End checkpoint. Validate the current storage info with the given signature. @param sig to validate the current storage info against @throws IOException if the checkpoint fields are inconsistent
[ "End", "checkpoint", ".", "Validate", "the", "current", "storage", "info", "with", "the", "given", "signature", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L1167-L1178
118,596
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.saveDigestAndRenameCheckpointImage
synchronized void saveDigestAndRenameCheckpointImage( long txid, MD5Hash digest) throws IOException { if (!digest.equals(storage.getCheckpointImageDigest(txid))) { throw new IOException( "Checkpoint image is corrupt: expecting an MD5 checksum of" + digest + " but is " + storage.g...
java
synchronized void saveDigestAndRenameCheckpointImage( long txid, MD5Hash digest) throws IOException { if (!digest.equals(storage.getCheckpointImageDigest(txid))) { throw new IOException( "Checkpoint image is corrupt: expecting an MD5 checksum of" + digest + " but is " + storage.g...
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This is called by the 2NN after having downloaded an image, and by the NN after having received a new image from the 2NN. It renames the image from fsimage_N.ckpt to fsimage_N and also saves the related .md5 file into place.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L1191-L1205
118,597
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java
FSImage.getCheckpointDirs
static Collection<File> getCheckpointDirs(Configuration conf, String defaultName) { Collection<String> dirNames = conf.getStringCollection("fs.checkpoint.dir"); if (dirNames.size() == 0 && defaultName != null) { dirNames.add(defaultName); } Collection<File> dirs = new ArrayList<File>(dirName...
java
static Collection<File> getCheckpointDirs(Configuration conf, String defaultName) { Collection<String> dirNames = conf.getStringCollection("fs.checkpoint.dir"); if (dirNames.size() == 0 && defaultName != null) { dirNames.add(defaultName); } Collection<File> dirs = new ArrayList<File>(dirName...
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Retrieve checkpoint dirs from configuration. @param conf the Configuration @param defaultValue a default value for the attribute, if null @return a Collection of URIs representing the values in dfs.namenode.checkpoint.dir configuration property
[ "Retrieve", "checkpoint", "dirs", "from", "configuration", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L1266-L1277
118,598
facebookarchive/hadoop-20
src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/JobInitializationPoller.java
JobInitializationPoller.printJobs
private void printJobs(ArrayList<JobInProgress> jobsToInitialize) { for (JobInProgress job : jobsToInitialize) { LOG.info("Passing to Initializer Job Id :" + job.getJobID() + " User: " + job.getProfile().getUser() + " Queue : " + job.getProfile().getQueueName()); } }
java
private void printJobs(ArrayList<JobInProgress> jobsToInitialize) { for (JobInProgress job : jobsToInitialize) { LOG.info("Passing to Initializer Job Id :" + job.getJobID() + " User: " + job.getProfile().getUser() + " Queue : " + job.getProfile().getQueueName()); } }
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Method used to print log statements about which jobs are being passed to init-threads. @param jobsToInitialize list of jobs which are passed to be init-threads.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/JobInitializationPoller.java#L343-L349
118,599
facebookarchive/hadoop-20
src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/JobInitializationPoller.java
JobInitializationPoller.assignThreadsToQueues
private void assignThreadsToQueues() { int countOfQueues = jobQueues.size(); String[] queues = (String[]) jobQueues.keySet().toArray( new String[countOfQueues]); int numberOfQueuesPerThread = countOfQueues / poolSize; int numberOfQueuesAssigned = 0; for (int i = 0; i < poolSize; i++) { ...
java
private void assignThreadsToQueues() { int countOfQueues = jobQueues.size(); String[] queues = (String[]) jobQueues.keySet().toArray( new String[countOfQueues]); int numberOfQueuesPerThread = countOfQueues / poolSize; int numberOfQueuesAssigned = 0; for (int i = 0; i < poolSize; i++) { ...
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Method which is used by the poller to assign appropriate worker thread to a queue. The number of threads would be always less than or equal to number of queues in a system. If number of threads is configured to be more than number of queues then poller does not create threads more than number of queues.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/JobInitializationPoller.java#L370-L397