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119,200
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskGraphServlet.java
TaskGraphServlet.getMapAvarageProgress
private float getMapAvarageProgress(int tasksPerBar, int index , TaskReport[] reports ) { float progress = 0f; int k=0; for(;k < tasksPerBar && index + k < reports.length; k++) { progress += reports[index + k].getProgress(); } progress /= k; return progress; }
java
private float getMapAvarageProgress(int tasksPerBar, int index , TaskReport[] reports ) { float progress = 0f; int k=0; for(;k < tasksPerBar && index + k < reports.length; k++) { progress += reports[index + k].getProgress(); } progress /= k; return progress; }
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Computes average progress per bar
[ "Computes", "average", "progress", "per", "bar" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskGraphServlet.java#L177-L186
119,201
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskGraphServlet.java
TaskGraphServlet.getReduceAvarageProgresses
private float[] getReduceAvarageProgresses(int tasksPerBar, int index , TaskReport[] reports ) { float[] progresses = new float[] {0,0,0}; int k=0; for(;k < tasksPerBar && index + k < reports.length; k++) { float progress = reports[index+k].getProgress(); for(int j=0; progress > 0 ; j++, p...
java
private float[] getReduceAvarageProgresses(int tasksPerBar, int index , TaskReport[] reports ) { float[] progresses = new float[] {0,0,0}; int k=0; for(;k < tasksPerBar && index + k < reports.length; k++) { float progress = reports[index+k].getProgress(); for(int j=0; progress > 0 ; j++, p...
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Computes average progresses per bar
[ "Computes", "average", "progresses", "per", "bar" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskGraphServlet.java#L189-L205
119,202
facebookarchive/hadoop-20
src/contrib/storageservice/src/java/org/apache/hadoop/hdfs/storageservice/NNLatencyBenchmark.java
NNLatencyBenchmark.setUp
private void setUp() throws Exception { try { fileSystem = (DistributedFileSystem) FileSystem.get( StorageServiceConfigKeys.translateToOldSchema(conf, nameserviceId), conf); InetSocketAddress nameNodeAddr = fileSystem.getClient().getNameNodeAddr(); metaInfo = new RequestMetaInfo(clusterI...
java
private void setUp() throws Exception { try { fileSystem = (DistributedFileSystem) FileSystem.get( StorageServiceConfigKeys.translateToOldSchema(conf, nameserviceId), conf); InetSocketAddress nameNodeAddr = fileSystem.getClient().getNameNodeAddr(); metaInfo = new RequestMetaInfo(clusterI...
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Sets up clients before each benchmark
[ "Sets", "up", "clients", "before", "each", "benchmark" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/storageservice/src/java/org/apache/hadoop/hdfs/storageservice/NNLatencyBenchmark.java#L122-L151
119,203
facebookarchive/hadoop-20
src/contrib/storageservice/src/java/org/apache/hadoop/hdfs/storageservice/NNLatencyBenchmark.java
NNLatencyBenchmark.tearDown
private void tearDown() throws Exception { try { if (fileSystem != null) { fileSystem.delete(new Path(ROOT), true, true); } } finally { RPC.stopProxy(proxyClientProxyProtocol); IOUtils.cleanup(LOG, proxyTClientProxyProtocol, clientManager, fileSystem); } }
java
private void tearDown() throws Exception { try { if (fileSystem != null) { fileSystem.delete(new Path(ROOT), true, true); } } finally { RPC.stopProxy(proxyClientProxyProtocol); IOUtils.cleanup(LOG, proxyTClientProxyProtocol, clientManager, fileSystem); } }
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Tears down clients after each benchmark
[ "Tears", "down", "clients", "after", "each", "benchmark" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/storageservice/src/java/org/apache/hadoop/hdfs/storageservice/NNLatencyBenchmark.java#L154-L163
119,204
facebookarchive/hadoop-20
src/contrib/index/src/java/org/apache/hadoop/contrib/index/mapred/Shard.java
Shard.normalizePath
public static String normalizePath(String path) { // remove double slashes & backslashes path = path.replace("//", "/"); path = path.replace("\\", "/"); // trim trailing slash from non-root path (ignoring windows drive) if (path.length() > 1 && path.endsWith("/")) { path = path.substring(0, p...
java
public static String normalizePath(String path) { // remove double slashes & backslashes path = path.replace("//", "/"); path = path.replace("\\", "/"); // trim trailing slash from non-root path (ignoring windows drive) if (path.length() > 1 && path.endsWith("/")) { path = path.substring(0, p...
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This method is copied from Path.
[ "This", "method", "is", "copied", "from", "Path", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/index/src/java/org/apache/hadoop/contrib/index/mapred/Shard.java#L43-L54
119,205
facebookarchive/hadoop-20
src/contrib/index/src/java/org/apache/hadoop/contrib/index/mapred/Shard.java
Shard.createShardFromString
private static Shard createShardFromString(String str) { int first = str.indexOf("@"); int second = str.indexOf("@", first + 1); long version = Long.parseLong(str.substring(0, first)); String dir = str.substring(first + 1, second); long gen = Long.parseLong(str.substring(second + 1)); return new...
java
private static Shard createShardFromString(String str) { int first = str.indexOf("@"); int second = str.indexOf("@", first + 1); long version = Long.parseLong(str.substring(0, first)); String dir = str.substring(first + 1, second); long gen = Long.parseLong(str.substring(second + 1)); return new...
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assume str is formatted correctly as a shard string
[ "assume", "str", "is", "formatted", "correctly", "as", "a", "shard", "string" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/index/src/java/org/apache/hadoop/contrib/index/mapred/Shard.java#L82-L89
119,206
facebookarchive/hadoop-20
src/contrib/index/src/java/org/apache/hadoop/contrib/index/mapred/Shard.java
Shard.compareTo
public int compareTo(Shard other) { // compare version if (version < other.version) { return -1; } else if (version > other.version) { return 1; } // compare dir int result = dir.compareTo(other.dir); if (result != 0) { return result; } // compare gen if (gen < ...
java
public int compareTo(Shard other) { // compare version if (version < other.version) { return -1; } else if (version > other.version) { return 1; } // compare dir int result = dir.compareTo(other.dir); if (result != 0) { return result; } // compare gen if (gen < ...
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Compare to another shard. @param other another shard @return compare version first, then directory and finally generation
[ "Compare", "to", "another", "shard", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/index/src/java/org/apache/hadoop/contrib/index/mapred/Shard.java#L196-L216
119,207
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/Shell.java
Shell.getUlimitMemoryCommand
public static String[] getUlimitMemoryCommand(int memoryLimit) { // ulimit isn't supported on Windows if (WINDOWS) { return null; } return new String[] {ULIMIT_COMMAND, "-v", String.valueOf(memoryLimit)}; }
java
public static String[] getUlimitMemoryCommand(int memoryLimit) { // ulimit isn't supported on Windows if (WINDOWS) { return null; } return new String[] {ULIMIT_COMMAND, "-v", String.valueOf(memoryLimit)}; }
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Get the Unix command for setting the maximum virtual memory available to a given child process. This is only relevant when we are forking a process from within the Mapper or the Reducer implementations. Also see Hadoop Pipes and Hadoop Streaming. It also checks to ensure that we are running on a *nix platform else (e....
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/Shell.java#L125-L132
119,208
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/TaskID.java
TaskID.appendTo
protected StringBuilder appendTo(StringBuilder builder) { return jobId.appendTo(builder). append(SEPARATOR). append(isMap ? 'm' : 'r'). append(SEPARATOR). append(idFormat.format(id)); }
java
protected StringBuilder appendTo(StringBuilder builder) { return jobId.appendTo(builder). append(SEPARATOR). append(isMap ? 'm' : 'r'). append(SEPARATOR). append(idFormat.format(id)); }
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Add the unique string to the given builder. @param builder the builder to append to @return the builder that was passed in
[ "Add", "the", "unique", "string", "to", "the", "given", "builder", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/TaskID.java#L132-L138
119,209
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/TaskID.java
TaskID.forName
public static TaskID forName(String str) throws IllegalArgumentException { if(str == null) return null; try { String[] parts = str.split("_"); if(parts.length == 5) { if(parts[0].equals(TASK)) { boolean isMap = false; if(parts[3].equals("m")) isMap = true; ...
java
public static TaskID forName(String str) throws IllegalArgumentException { if(str == null) return null; try { String[] parts = str.split("_"); if(parts.length == 5) { if(parts[0].equals(TASK)) { boolean isMap = false; if(parts[3].equals("m")) isMap = true; ...
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Construct a TaskID object from given string @return constructed TaskID object or null if the given String is null @throws IllegalArgumentException if the given string is malformed
[ "Construct", "a", "TaskID", "object", "from", "given", "string" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/TaskID.java#L163-L185
119,210
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImageSerialization.java
FSImageSerialization.readString
@SuppressWarnings("deprecation") public static String readString(DataInputStream in) throws IOException { UTF8 ustr = TL_DATA.get().U_STR; ustr.readFields(in); return ustr.toString(); }
java
@SuppressWarnings("deprecation") public static String readString(DataInputStream in) throws IOException { UTF8 ustr = TL_DATA.get().U_STR; ustr.readFields(in); return ustr.toString(); }
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by other code.
[ "by", "other", "code", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImageSerialization.java#L208-L213
119,211
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/JobMonitor.java
JobMonitor.doMonitor
public void doMonitor() { while (running) { String[] keys = null; // Make a copy of the names of the current jobs. synchronized(jobs) { keys = jobs.keySet().toArray(new String[0]); } // Check all the jobs. We do not want to block access to `jobs` // because that will pre...
java
public void doMonitor() { while (running) { String[] keys = null; // Make a copy of the names of the current jobs. synchronized(jobs) { keys = jobs.keySet().toArray(new String[0]); } // Check all the jobs. We do not want to block access to `jobs` // because that will pre...
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Periodically checks status of running map-reduce jobs.
[ "Periodically", "checks", "status", "of", "running", "map", "-", "reduce", "jobs", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/JobMonitor.java#L101-L176
119,212
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/JobMonitor.java
JobMonitor.runningJobsCount
int runningJobsCount() { int total = 0; synchronized(jobs) { for (String key: jobs.keySet()) { total += jobs.get(key).size(); } } return total; }
java
int runningJobsCount() { int total = 0; synchronized(jobs) { for (String key: jobs.keySet()) { total += jobs.get(key).size(); } } return total; }
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For test code
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/JobMonitor.java#L179-L187
119,213
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/file/tfile/TFile.java
TFile.main
public static void main(String[] args) { System.out.printf("TFile Dumper (TFile %s, BCFile %s)\n", TFile.API_VERSION .toString(), BCFile.API_VERSION.toString()); if (args.length == 0) { System.out .println("Usage: java ... org.apache.hadoop.io.file.tfile.TFile tfile-path [tfile-path ...]...
java
public static void main(String[] args) { System.out.printf("TFile Dumper (TFile %s, BCFile %s)\n", TFile.API_VERSION .toString(), BCFile.API_VERSION.toString()); if (args.length == 0) { System.out .println("Usage: java ... org.apache.hadoop.io.file.tfile.TFile tfile-path [tfile-path ...]...
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Dumping the TFile information. @param args A list of TFile paths.
[ "Dumping", "the", "TFile", "information", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/file/tfile/TFile.java#L2335-L2353
119,214
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java
TaskLogsMonitor.getAllLogsFileDetails
private Map<Task, Map<LogName, LogFileDetail>> getAllLogsFileDetails( final List<Task> allAttempts) throws IOException { Map<Task, Map<LogName, LogFileDetail>> taskLogFileDetails = new HashMap<Task, Map<LogName, LogFileDetail>>(); for (Task task : allAttempts) { Map<LogName, LogFileDetail> a...
java
private Map<Task, Map<LogName, LogFileDetail>> getAllLogsFileDetails( final List<Task> allAttempts) throws IOException { Map<Task, Map<LogName, LogFileDetail>> taskLogFileDetails = new HashMap<Task, Map<LogName, LogFileDetail>>(); for (Task task : allAttempts) { Map<LogName, LogFileDetail> a...
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Get the logFileDetails of all the list of attempts passed. @param lInfo @return a map of task to the log-file detail @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java#L257-L269
119,215
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java
TaskLogsMonitor.isTruncationNeeded
private boolean isTruncationNeeded(PerJVMInfo lInfo, Map<Task, Map<LogName, LogFileDetail>> taskLogFileDetails, LogName logName) { boolean truncationNeeded = false; LogFileDetail logFileDetail = null; for (Task task : lInfo.allAttempts) { long taskRetainSize = (task.isMapTask() ?...
java
private boolean isTruncationNeeded(PerJVMInfo lInfo, Map<Task, Map<LogName, LogFileDetail>> taskLogFileDetails, LogName logName) { boolean truncationNeeded = false; LogFileDetail logFileDetail = null; for (Task task : lInfo.allAttempts) { long taskRetainSize = (task.isMapTask() ?...
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Check if truncation of logs is needed for the given jvmInfo. If all the tasks that ran in a JVM are within the log-limits, then truncation is not needed. Otherwise it is needed. @param lInfo @param taskLogFileDetails @param logName @return true if truncation is needed, false otherwise
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java#L281-L299
119,216
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java
TaskLogsMonitor.truncateALogFileOfAnAttempt
private LogFileDetail truncateALogFileOfAnAttempt( final TaskAttemptID taskID, final LogFileDetail oldLogFileDetail, final long taskRetainSize, final FileWriter tmpFileWriter, final FileReader logFileReader) throws IOException { LogFileDetail newLogFileDetail = new LogFileDetail(); // ///////...
java
private LogFileDetail truncateALogFileOfAnAttempt( final TaskAttemptID taskID, final LogFileDetail oldLogFileDetail, final long taskRetainSize, final FileWriter tmpFileWriter, final FileReader logFileReader) throws IOException { LogFileDetail newLogFileDetail = new LogFileDetail(); // ///////...
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Truncate the log file of this task-attempt so that only the last retainSize many bytes of each log file is retained and the log file is reduced in size saving disk space. @param taskID Task whose logs need to be truncated @param oldLogFileDetail contains the original log details for the attempt @param taskRetainSize r...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java#L315-L364
119,217
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java
TaskLogsMonitor.updateIndicesAfterLogTruncation
private void updateIndicesAfterLogTruncation(TaskAttemptID firstAttempt, Map<Task, Map<LogName, LogFileDetail>> updatedTaskLogFileDetails) { for (Entry<Task, Map<LogName, LogFileDetail>> entry : updatedTaskLogFileDetails.entrySet()) { Task task = entry.getKey(); Ma...
java
private void updateIndicesAfterLogTruncation(TaskAttemptID firstAttempt, Map<Task, Map<LogName, LogFileDetail>> updatedTaskLogFileDetails) { for (Entry<Task, Map<LogName, LogFileDetail>> entry : updatedTaskLogFileDetails.entrySet()) { Task task = entry.getKey(); Ma...
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Truncation of logs is done. Now sync the index files to reflect the truncated sizes. @param firstAttempt @param updatedTaskLogFileDetails
[ "Truncation", "of", "logs", "is", "done", ".", "Now", "sync", "the", "index", "files", "to", "reflect", "the", "truncated", "sizes", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLogsMonitor.java#L373-L403
119,218
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/lib/CombineFileInputFormat.java
CombineFileInputFormat.getStatsString
private String getStatsString() { SplitTypeStats allTypeStats = splitTypeStatsMap.get(SplitType.ALL); Map<String, Map<String, Number>> statsMapMap = new HashMap<String, Map<String, Number>>(); for (Map.Entry<SplitType, SplitTypeStats> entry : splitTypeStatsMap.entrySet()) { Map<String, N...
java
private String getStatsString() { SplitTypeStats allTypeStats = splitTypeStatsMap.get(SplitType.ALL); Map<String, Map<String, Number>> statsMapMap = new HashMap<String, Map<String, Number>>(); for (Map.Entry<SplitType, SplitTypeStats> entry : splitTypeStatsMap.entrySet()) { Map<String, N...
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Get stats for every split type as a string @return String of all split type stats
[ "Get", "stats", "for", "every", "split", "type", "as", "a", "string" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/lib/CombineFileInputFormat.java#L187-L226
119,219
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/lib/CombineFileInputFormat.java
CombineFileInputFormat.createPool
protected void createPool(JobConf conf, List<PathFilter> filters) { pools.add(new MultiPathFilter(filters)); }
java
protected void createPool(JobConf conf, List<PathFilter> filters) { pools.add(new MultiPathFilter(filters)); }
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Create a new pool and add the filters to it. A split cannot have files from different pools.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/lib/CombineFileInputFormat.java#L269-L271
119,220
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/lib/CombineFileInputFormat.java
CombineFileInputFormat.sortBlocksBySize
private void sortBlocksBySize(Map<String, List<OneBlockInfo>> nodeToBlocks) { OneBlockInfoSizeComparator comparator = new OneBlockInfoSizeComparator(); for (Entry<String, List<OneBlockInfo>> entry : nodeToBlocks.entrySet()) { Collections.sort(entry.getValue(), comparator); } }
java
private void sortBlocksBySize(Map<String, List<OneBlockInfo>> nodeToBlocks) { OneBlockInfoSizeComparator comparator = new OneBlockInfoSizeComparator(); for (Entry<String, List<OneBlockInfo>> entry : nodeToBlocks.entrySet()) { Collections.sort(entry.getValue(), comparator); } }
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Sort the blocks on each node by size, largest to smallest @param nodeToBlocks Map of nodes to all blocks on that node
[ "Sort", "the", "blocks", "on", "each", "node", "by", "size", "largest", "to", "smallest" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/lib/CombineFileInputFormat.java#L456-L461
119,221
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.updateMetrics
public void updateMetrics() { Counters counters = getCounters(); for (Counters.Group group : counters) { jobMetrics.setTag("group", group.getDisplayName()); for (Counters.Counter counter : group) { jobMetrics.setTag("counter", counter.getDisplayName()); jobMetrics.setMetric("value", ...
java
public void updateMetrics() { Counters counters = getCounters(); for (Counters.Group group : counters) { jobMetrics.setTag("group", group.getDisplayName()); for (Counters.Counter counter : group) { jobMetrics.setTag("counter", counter.getDisplayName()); jobMetrics.setMetric("value", ...
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Called periodically by JobTrackerMetrics to update the metrics for this job.
[ "Called", "periodically", "by", "JobTrackerMetrics", "to", "update", "the", "metrics", "for", "this", "job", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L576-L586
119,222
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.getTasks
TaskInProgress[] getTasks(TaskType type) { TaskInProgress[] tasks = null; switch (type) { case MAP: { tasks = maps; } break; case REDUCE: { tasks = reduces; } break; case JOB_SETUP: { tasks = setup; }...
java
TaskInProgress[] getTasks(TaskType type) { TaskInProgress[] tasks = null; switch (type) { case MAP: { tasks = maps; } break; case REDUCE: { tasks = reduces; } break; case JOB_SETUP: { tasks = setup; }...
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Get all the tasks of the desired type in this job. @param type {@link TaskType} of the tasks required @return An array of {@link TaskInProgress} matching the given type. Returns an empty array if no tasks are found for the given type.
[ "Get", "all", "the", "tasks", "of", "the", "desired", "type", "in", "this", "job", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L1036-L1067
119,223
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.canLaunchJobCleanupTask
private synchronized boolean canLaunchJobCleanupTask() { // check if the job is running if (status.getRunState() != JobStatus.RUNNING && status.getRunState() != JobStatus.PREP) { return false; } // check if cleanup task has been launched already or if setup isn't // launched already. T...
java
private synchronized boolean canLaunchJobCleanupTask() { // check if the job is running if (status.getRunState() != JobStatus.RUNNING && status.getRunState() != JobStatus.PREP) { return false; } // check if cleanup task has been launched already or if setup isn't // launched already. T...
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Check whether cleanup task can be launched for the job. Cleanup task can be launched if it is not already launched or job is Killed or all maps and reduces are complete @return true/false
[ "Check", "whether", "cleanup", "task", "can", "be", "launched", "for", "the", "job", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L1601-L1629
119,224
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.canLaunchSetupTask
private synchronized boolean canLaunchSetupTask() { return (tasksInited.get() && status.getRunState() == JobStatus.PREP && !launchedSetup && !jobKilled && !jobFailed); }
java
private synchronized boolean canLaunchSetupTask() { return (tasksInited.get() && status.getRunState() == JobStatus.PREP && !launchedSetup && !jobKilled && !jobFailed); }
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Check whether setup task can be launched for the job. Setup task can be launched after the tasks are inited and Job is in PREP state and if it is not already launched or job is not Killed/Failed @return true/false
[ "Check", "whether", "setup", "task", "can", "be", "launched", "for", "the", "job", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L1697-L1700
119,225
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.obtainNewReduceTask
public synchronized Task obtainNewReduceTask(TaskTrackerStatus tts, int clusterSize, int numUniqueHosts ) throws IOException { if (status.getRunState() != JobStatus.RUNNING) { ...
java
public synchronized Task obtainNewReduceTask(TaskTrackerStatus tts, int clusterSize, int numUniqueHosts ) throws IOException { if (status.getRunState() != JobStatus.RUNNING) { ...
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Return a ReduceTask, if appropriate, to run on the given tasktracker. We don't have cache-sensitivity for reduce tasks, as they work on temporary MapRed files.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L1708-L1734
119,226
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.getBlackListedTrackers
Map<String, List<String>> getBlackListedTrackers() { Map<String, List<String>> blackListedTrackers = new HashMap<String, List<String>>(); for (Map.Entry<String,List<String>> e : trackerToFailuresMap.entrySet()) { if (e.getValue().size() >= maxTaskFailuresPerTracker) { blackListedTracke...
java
Map<String, List<String>> getBlackListedTrackers() { Map<String, List<String>> blackListedTrackers = new HashMap<String, List<String>>(); for (Map.Entry<String,List<String>> e : trackerToFailuresMap.entrySet()) { if (e.getValue().size() >= maxTaskFailuresPerTracker) { blackListedTracke...
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Get the black listed trackers for the job and corresponding errors. @return Map of blacklisted tracker names and the errors for each tracker that triggered blacklisting
[ "Get", "the", "black", "listed", "trackers", "for", "the", "job", "and", "corresponding", "errors", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L2003-L2014
119,227
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.getTaskTrackerErrors
synchronized Map<String, List<String>> getTaskTrackerErrors() { // Clone the 'trackerToFailuresMap' and return the copy Map<String, List<String>> trackerErrors = new TreeMap<String, List<String>>(trackerToFailuresMap); return trackerErrors; }
java
synchronized Map<String, List<String>> getTaskTrackerErrors() { // Clone the 'trackerToFailuresMap' and return the copy Map<String, List<String>> trackerErrors = new TreeMap<String, List<String>>(trackerToFailuresMap); return trackerErrors; }
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Get the information on tasktrackers and no. of errors which occurred on them for a given job. @return the map of tasktrackers and no. of errors which occurred on them for a given job.
[ "Get", "the", "information", "on", "tasktrackers", "and", "no", ".", "of", "errors", "which", "occurred", "on", "them", "for", "a", "given", "job", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L2032-L2037
119,228
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.scheduleMap
protected synchronized void scheduleMap(TaskInProgress tip) { runningMapTaskStats.add(0.0f); runningTaskMapByteProcessingRateStats.add(0.0f); if (runningMapCache == null) { LOG.warn("Running cache for maps is missing!! " + "Job details are missing."); return; } String[] sp...
java
protected synchronized void scheduleMap(TaskInProgress tip) { runningMapTaskStats.add(0.0f); runningTaskMapByteProcessingRateStats.add(0.0f); if (runningMapCache == null) { LOG.warn("Running cache for maps is missing!! " + "Job details are missing."); return; } String[] sp...
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Adds a map tip to the list of running maps. @param tip the tip that needs to be scheduled as running
[ "Adds", "a", "map", "tip", "to", "the", "list", "of", "running", "maps", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L2095-L2125
119,229
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.scheduleReduce
protected synchronized void scheduleReduce(TaskInProgress tip) { runningReduceTaskStats.add(0.0f); runningTaskCopyProcessingRateStats.add(0.0f); runningTaskSortProcessingRateStats.add(0.0f); runningTaskReduceProcessingRateStats.add(0.0f); if (runningReduces == null) { LOG.warn("Running cache f...
java
protected synchronized void scheduleReduce(TaskInProgress tip) { runningReduceTaskStats.add(0.0f); runningTaskCopyProcessingRateStats.add(0.0f); runningTaskSortProcessingRateStats.add(0.0f); runningTaskReduceProcessingRateStats.add(0.0f); if (runningReduces == null) { LOG.warn("Running cache f...
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Adds a reduce tip to the list of running reduces @param tip the tip that needs to be scheduled as running
[ "Adds", "a", "reduce", "tip", "to", "the", "list", "of", "running", "reduces" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L2131-L2142
119,230
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.findNewReduceTask
private synchronized int findNewReduceTask(TaskTrackerStatus tts, int clusterSize, int numUniqueHosts) { if (numReduceTasks == 0) { if(LOG.isDebugEnabled()) { LOG.debug("No reduces to schedule for " + profile.get...
java
private synchronized int findNewReduceTask(TaskTrackerStatus tts, int clusterSize, int numUniqueHosts) { if (numReduceTasks == 0) { if(LOG.isDebugEnabled()) { LOG.debug("No reduces to schedule for " + profile.get...
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Find new reduce task @param tts The task tracker that is asking for a task @param clusterSize The number of task trackers in the cluster @param numUniqueHosts The number of hosts that run task trackers @param avgProgress The average progress of this kind of task in this job @return the index in tasks of the selected ta...
[ "Find", "new", "reduce", "task" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L2584-L2635
119,231
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.kill
public void kill() { boolean killNow = false; synchronized(jobInitKillStatus) { jobInitKillStatus.killed = true; //if not in middle of init, terminate it now if(!jobInitKillStatus.initStarted || jobInitKillStatus.initDone) { //avoiding nested locking by setting flag killNow = t...
java
public void kill() { boolean killNow = false; synchronized(jobInitKillStatus) { jobInitKillStatus.killed = true; //if not in middle of init, terminate it now if(!jobInitKillStatus.initStarted || jobInitKillStatus.initDone) { //avoiding nested locking by setting flag killNow = t...
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Kill the job and all its component tasks. This method should be called from jobtracker and should return fast as it locks the jobtracker.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L3068-L3081
119,232
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.garbageCollect
synchronized void garbageCollect() { // Cancel task tracker reservation cancelReservedSlots(); // Remove the remaining speculative tasks counts totalSpeculativeReduceTasks.addAndGet(-speculativeReduceTasks); totalSpeculativeMapTasks.addAndGet(-speculativeMapTasks); garbageCollected = true; ...
java
synchronized void garbageCollect() { // Cancel task tracker reservation cancelReservedSlots(); // Remove the remaining speculative tasks counts totalSpeculativeReduceTasks.addAndGet(-speculativeReduceTasks); totalSpeculativeMapTasks.addAndGet(-speculativeMapTasks); garbageCollected = true; ...
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The job is dead. We're now GC'ing it, getting rid of the job from all tables. Be sure to remove all of this job's tasks from the various tables.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L3376-L3422
119,233
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.findFinishedMap
public synchronized TaskStatus findFinishedMap(int mapId) { TaskInProgress tip = maps[mapId]; if (tip.isComplete()) { TaskStatus[] statuses = tip.getTaskStatuses(); for(int i=0; i < statuses.length; i++) { if (statuses[i].getRunState() == TaskStatus.State.SUCCEEDED) { return status...
java
public synchronized TaskStatus findFinishedMap(int mapId) { TaskInProgress tip = maps[mapId]; if (tip.isComplete()) { TaskStatus[] statuses = tip.getTaskStatuses(); for(int i=0; i < statuses.length; i++) { if (statuses[i].getRunState() == TaskStatus.State.SUCCEEDED) { return status...
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Find the details of someplace where a map has finished @param mapId the id of the map @return the task status of the completed task
[ "Find", "the", "details", "of", "someplace", "where", "a", "map", "has", "finished" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L3434-L3445
119,234
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.atSpeculativeCap
private boolean atSpeculativeCap(TaskType type) { float numTasks = (type == TaskType.MAP) ? (float)(runningMapTasks - speculativeMapTasks) : (float)(runningReduceTasks - speculativeReduceTasks); if (numTasks == 0){ return true; // avoid divide by zero } int speculativeTaskCount ...
java
private boolean atSpeculativeCap(TaskType type) { float numTasks = (type == TaskType.MAP) ? (float)(runningMapTasks - speculativeMapTasks) : (float)(runningReduceTasks - speculativeReduceTasks); if (numTasks == 0){ return true; // avoid divide by zero } int speculativeTaskCount ...
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Check to see if the maximum number of speculative tasks are already being executed currently. @param tasks the set of tasks to test @param type the type of task (MAP/REDUCE) that we are considering @return has the cap been reached?
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L3646-L3679
119,235
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.isSlowTracker
protected boolean isSlowTracker(String taskTracker) { if (trackerMapStats.get(taskTracker) != null && trackerMapStats.get(taskTracker).mean() - mapTaskStats.mean() > mapTaskStats.std()*slowNodeThreshold) { if (LOG.isDebugEnabled()) { LOG.debug("Tracker " + taskTracker + " d...
java
protected boolean isSlowTracker(String taskTracker) { if (trackerMapStats.get(taskTracker) != null && trackerMapStats.get(taskTracker).mean() - mapTaskStats.mean() > mapTaskStats.std()*slowNodeThreshold) { if (LOG.isDebugEnabled()) { LOG.debug("Tracker " + taskTracker + " d...
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Compares the ave progressRate of tasks that have finished on this taskTracker to the ave of all succesfull tasks thus far to see if this TT one is too slow for speculating. slowNodeThreshold is used to determine the number of standard deviations @param taskTracker the name of the TaskTracker we are checking @return is ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L3732-L3754
119,236
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.refresh
void refresh(long now) { refreshCandidateSpeculativeMaps(now); refreshCandidateSpeculativeReduces(now); refreshTaskCountsAndWaitTime(TaskType.MAP, now); refreshTaskCountsAndWaitTime(TaskType.REDUCE, now); }
java
void refresh(long now) { refreshCandidateSpeculativeMaps(now); refreshCandidateSpeculativeReduces(now); refreshTaskCountsAndWaitTime(TaskType.MAP, now); refreshTaskCountsAndWaitTime(TaskType.REDUCE, now); }
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Refresh speculative task candidates and running tasks. This needs to be called periodically to obtain fresh values.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L3836-L3841
119,237
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobInProgress.java
JobInProgress.refreshTaskCountsAndWaitTime
protected void refreshTaskCountsAndWaitTime(TaskType type, long now) { TaskInProgress[] allTips = getTasks(type); int finishedTips = 0; int runningTips = 0; int runningTaskAttempts = 0; long totalWaitTime = 0; long jobStartTime = this.getStartTime(); for (TaskInProgress tip : allTips) { ...
java
protected void refreshTaskCountsAndWaitTime(TaskType type, long now) { TaskInProgress[] allTips = getTasks(type); int finishedTips = 0; int runningTips = 0; int runningTaskAttempts = 0; long totalWaitTime = 0; long jobStartTime = this.getStartTime(); for (TaskInProgress tip : allTips) { ...
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Refresh runningTasks, neededTasks and pendingTasks counters @param type TaskType to refresh
[ "Refresh", "runningTasks", "neededTasks", "and", "pendingTasks", "counters" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobInProgress.java#L3847-L3882
119,238
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/server/jobtracker/JobTrackerJspHelper.java
JobTrackerJspHelper.generateSummaryTable
public void generateSummaryTable(JspWriter out, JobTracker tracker) throws IOException { ClusterStatus status = tracker.getClusterStatus(); int maxMapTasks = status.getMaxMapTasks(); int maxReduceTasks = status.getMaxReduceTasks(); int numTaskTrackers = status.getTaskT...
java
public void generateSummaryTable(JspWriter out, JobTracker tracker) throws IOException { ClusterStatus status = tracker.getClusterStatus(); int maxMapTasks = status.getMaxMapTasks(); int maxReduceTasks = status.getMaxReduceTasks(); int numTaskTrackers = status.getTaskT...
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Generates an XML-formatted block that summarizes the state of the JobTracker.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/server/jobtracker/JobTrackerJspHelper.java#L85-L105
119,239
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/TaskAttemptID.java
TaskAttemptID.appendTo
protected StringBuilder appendTo(StringBuilder builder) { return taskId.appendTo(builder).append(SEPARATOR).append(id); }
java
protected StringBuilder appendTo(StringBuilder builder) { return taskId.appendTo(builder).append(SEPARATOR).append(id); }
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Add the unique string to the StringBuilder @param builder the builder to append ot @return the builder that was passed in.
[ "Add", "the", "unique", "string", "to", "the", "StringBuilder" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/TaskAttemptID.java#L108-L110
119,240
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/TaskAttemptID.java
TaskAttemptID.compareTo
@Override public int compareTo(ID o) { TaskAttemptID that = (TaskAttemptID)o; int tipComp = this.taskId.compareTo(that.taskId); if(tipComp == 0) { return this.id - that.id; } else return tipComp; }
java
@Override public int compareTo(ID o) { TaskAttemptID that = (TaskAttemptID)o; int tipComp = this.taskId.compareTo(that.taskId); if(tipComp == 0) { return this.id - that.id; } else return tipComp; }
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Compare TaskIds by first tipIds, then by task numbers.
[ "Compare", "TaskIds", "by", "first", "tipIds", "then", "by", "task", "numbers", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/TaskAttemptID.java#L130-L138
119,241
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.distributeShare
public static void distributeShare( double total, final Collection<? extends Schedulable> schedulables, ScheduleComparator comparator) { switch (comparator) { case FIFO: case DEADLINE: Schedulable.distributeShareSorted(total, schedulables, comparator); break; case FAIR: Sch...
java
public static void distributeShare( double total, final Collection<? extends Schedulable> schedulables, ScheduleComparator comparator) { switch (comparator) { case FIFO: case DEADLINE: Schedulable.distributeShareSorted(total, schedulables, comparator); break; case FAIR: Sch...
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Distribute the shares among the schedulables based on the comparator @param total the total share to distribute @param schedulables the list of schedulables @param comparator the comparator to use when distributing the share
[ "Distribute", "the", "shares", "among", "the", "schedulables", "based", "on", "the", "comparator" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L170-L187
119,242
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.distributeShareSorted
private static void distributeShareSorted( double total, final Collection<? extends Schedulable> schedulables, ScheduleComparator comparator) { List<Schedulable> sches = new ArrayList<Schedulable>(schedulables); Collections.sort(sches, comparator); for (Schedulable schedulable : sches) { i...
java
private static void distributeShareSorted( double total, final Collection<? extends Schedulable> schedulables, ScheduleComparator comparator) { List<Schedulable> sches = new ArrayList<Schedulable>(schedulables); Collections.sort(sches, comparator); for (Schedulable schedulable : sches) { i...
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Distribute the share among Schedulables in a greedy manner when they are sorted based on some comparator and the first Schedulable has to be fully satisfied before the next one can get any resources @param total the total amount of share to be distributed @param schedulables a collection of schedulables to get the sha...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L198-L213
119,243
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.distributeShareFair
private static void distributeShareFair( double total, final Collection<? extends Schedulable> schedulables) { BinarySearcher searcher = new BinarySearcher() { @Override protected double targetFunction(double x) { return totalShareWithRatio(schedulables, x); } }; double ratio...
java
private static void distributeShareFair( double total, final Collection<? extends Schedulable> schedulables) { BinarySearcher searcher = new BinarySearcher() { @Override protected double targetFunction(double x) { return totalShareWithRatio(schedulables, x); } }; double ratio...
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Distribute the total share among the list of schedulables according to the FAIR model. Finds a way to distribute the share in such a way that all the min and max reservations of the schedulables are satisfied @param total the share to be distributed @param schedulables the list of schedulables
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L223-L235
119,244
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.totalShareWithRatio
private static double totalShareWithRatio( Collection<? extends Schedulable> schedulables, double weightToShareRatio) { double totalShare = 0; for (Schedulable schedulable : schedulables) { totalShare += shareWithRatio(schedulable, weightToShareRatio); } return totalShare; }
java
private static double totalShareWithRatio( Collection<? extends Schedulable> schedulables, double weightToShareRatio) { double totalShare = 0; for (Schedulable schedulable : schedulables) { totalShare += shareWithRatio(schedulable, weightToShareRatio); } return totalShare; }
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Compute the total share of the schedulables given a weightToShareRatio @param schedulables the list of schedulables to compute the share for @param weightToShareRatio the weightToShareRatio to compute it for @return the total share of all the schedulables for a given weightToShareRatio
[ "Compute", "the", "total", "share", "of", "the", "schedulables", "given", "a", "weightToShareRatio" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L244-L252
119,245
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.shareWithRatio
private static double shareWithRatio( Schedulable schedulable, double weightToShareRatio) { double share = schedulable.getWeight() * weightToShareRatio; int min = schedulable.getMinimum(); int max = schedulable.getMaximum(); int requested = schedulable.getRequested(); share = Math.max(min, sha...
java
private static double shareWithRatio( Schedulable schedulable, double weightToShareRatio) { double share = schedulable.getWeight() * weightToShareRatio; int min = schedulable.getMinimum(); int max = schedulable.getMaximum(); int requested = schedulable.getRequested(); share = Math.max(min, sha...
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Get the share of the schedulable given a weightToShareRatio. This takes into account the min and the max allocation and is used to compute the weightToShareRatio globally @param schedulable the schedulable to compute the share for @param weightToShareRatio the multiplier for the weight of the schedulable @return the sh...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L262-L272
119,246
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.assignShareIfUnderAllocated
private static double assignShareIfUnderAllocated( double totalShare, final Collection<? extends Schedulable> schedulables) { double totalMinDemand = 0; for (Schedulable schedulable : schedulables) { schedulable.share = 0; totalMinDemand += Math.min(schedulable.getRequested(), ...
java
private static double assignShareIfUnderAllocated( double totalShare, final Collection<? extends Schedulable> schedulables) { double totalMinDemand = 0; for (Schedulable schedulable : schedulables) { schedulable.share = 0; totalMinDemand += Math.min(schedulable.getRequested(), ...
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Assign fair share if total share < min demand. @param totalShare The share to be distributed. @param schedulables The collection of schedulables @return Excess share after assigning the min demand to each schedulable.
[ "Assign", "fair", "share", "if", "total", "share", "<", "min", "demand", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L281-L297
119,247
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.generatePriorityGroupedSchedulables
private static TreeMap<Integer, Vector<Schedulable>> generatePriorityGroupedSchedulables( final Collection<? extends Schedulable> schedulables) { TreeMap<Integer, Vector<Schedulable>> prioritizedSchedulableMap = new TreeMap<Integer, Vector<Schedulable>>(); for (Schedulable schedulable : s...
java
private static TreeMap<Integer, Vector<Schedulable>> generatePriorityGroupedSchedulables( final Collection<? extends Schedulable> schedulables) { TreeMap<Integer, Vector<Schedulable>> prioritizedSchedulableMap = new TreeMap<Integer, Vector<Schedulable>>(); for (Schedulable schedulable : s...
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Group a collection of schedulables into priority groups sorted by priority. @param schedulables Collection of schedulables @return Sorted map of priority to vector of schedulables (lowest priority first)
[ "Group", "a", "collection", "of", "schedulables", "into", "priority", "groups", "sorted", "by", "priority", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L307-L321
119,248
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.distributeSharePriority
private static void distributeSharePriority( double total, final Collection<? extends Schedulable> schedulables) { // 1) If share < sum(min(demand, min_alloc)) then do fair share and quit. double residualShare = assignShareIfUnderAllocated(total, schedulables); if (residualShare <= 0.0) { retur...
java
private static void distributeSharePriority( double total, final Collection<? extends Schedulable> schedulables) { // 1) If share < sum(min(demand, min_alloc)) then do fair share and quit. double residualShare = assignShareIfUnderAllocated(total, schedulables); if (residualShare <= 0.0) { retur...
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Distribute the total share among the list of schedulables according to the PRIORITY model. Note that the eventual intent is to determine if preemption is necessary. So, we need to assign the most ideal share on each schedulable beyond which preemption is necessary. Finds a way to distribute the share in such a way that...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L386-L401
119,249
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.distributeShareMin
private static void distributeShareMin( Collection<? extends Schedulable> schedulableVector) { for (Schedulable schedulable : schedulableVector) { schedulable.share += schedulable.getMinimum(); } }
java
private static void distributeShareMin( Collection<? extends Schedulable> schedulableVector) { for (Schedulable schedulable : schedulableVector) { schedulable.share += schedulable.getMinimum(); } }
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Increment each of the schedulables' share by the minimum demand. Note that each pool has to be guaranteed at least its MIN value according to PRIORITY scheduling. @param schedulableVector: The collection of schedulables (all with the same priority)
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L411-L416
119,250
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java
Schedulable.distributeShareMax
private static void distributeShareMax( Collection<? extends Schedulable> schedulableVector) { for (Schedulable schedulable : schedulableVector) { double minShare = Math.max(schedulable.getMinimum(), schedulable.getRequested()); schedulable.share += Math.min(schedu...
java
private static void distributeShareMax( Collection<? extends Schedulable> schedulableVector) { for (Schedulable schedulable : schedulableVector) { double minShare = Math.max(schedulable.getMinimum(), schedulable.getRequested()); schedulable.share += Math.min(schedu...
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Increment each of the schedulables' share by the lesser of its min demand or its maximum. @param schedulableVector: The collection of schedulables (all with the same priority)
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Schedulable.java#L425-L433
119,251
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/SystemLogParser.java
SystemLogParser.parseMonth
private int parseMonth(String month) { for (int i = 0; i < months.length; i++) if (months[i].startsWith(month)) return i; return -1; }
java
private int parseMonth(String month) { for (int i = 0; i < months.length; i++) if (months[i].startsWith(month)) return i; return -1; }
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Convert the name of a month to the corresponding int value. @return the int representation of the month.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/SystemLogParser.java#L111-L116
119,252
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/ReedSolomonDecoder.java
ReedSolomonDecoder.writeFixedBlock
long writeFixedBlock( FSDataInputStream[] inputs, int[] erasedLocations, int erasedLocationToFix, long limit, OutputStream out, Progressable reporter, ParallelStreamReader parallelReader, CRC32 crc) throws IOException { LOG.info("Need to write "...
java
long writeFixedBlock( FSDataInputStream[] inputs, int[] erasedLocations, int erasedLocationToFix, long limit, OutputStream out, Progressable reporter, ParallelStreamReader parallelReader, CRC32 crc) throws IOException { LOG.info("Need to write "...
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Decode the inputs provided and write to the output. @param inputs array of inputs. @param erasedLocations indexes in the inputs which are known to be erased. @param erasedLocationToFix index in the inputs which needs to be fixed. @param limit maximum number of bytes to be written. @param out the output. @return size of...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/ReedSolomonDecoder.java#L220-L278
119,253
facebookarchive/hadoop-20
src/core/org/apache/hadoop/conf/ClientConfigurationUtil.java
ClientConfigurationUtil.mergeConfiguration
public static Configuration mergeConfiguration(URI uri, Configuration conf) throws IOException { try { Long lastBadAccess = badURIs.get(uri.getHost()); if (lastBadAccess != null) { if (System.currentTimeMillis() - lastBadAccess < BAD_URI_EXPIRY) { return conf; ...
java
public static Configuration mergeConfiguration(URI uri, Configuration conf) throws IOException { try { Long lastBadAccess = badURIs.get(uri.getHost()); if (lastBadAccess != null) { if (System.currentTimeMillis() - lastBadAccess < BAD_URI_EXPIRY) { return conf; ...
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Retrieves a modified version of the configuration from the supplied configuration. This is used to override the configuration supplied with the client side configuration retried from a different source. @param uri the URI for the FileSystem whose conf is needed @param conf the default configuration @return the modifie...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/conf/ClientConfigurationUtil.java#L65-L113
119,254
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JVMId.java
JVMId.forName
public static JVMId forName(String str) throws IllegalArgumentException { if(str == null) return null; try { String[] parts = str.split("_"); if(parts.length == 5) { if(parts[0].equals(JVM)) { boolean isMap = false; if(parts[3].equals("m")) isMap = true; ...
java
public static JVMId forName(String str) throws IllegalArgumentException { if(str == null) return null; try { String[] parts = str.split("_"); if(parts.length == 5) { if(parts[0].equals(JVM)) { boolean isMap = false; if(parts[3].equals("m")) isMap = true; ...
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Construct a JVMId object from given string @return constructed JVMId object or null if the given String is null @throws IllegalArgumentException if the given string is malformed
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JVMId.java#L126-L146
119,255
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java
LinuxUtilizationGauger.readFile
private String[] readFile(String fileName) throws IOException { ArrayList<String> result = new ArrayList<String>(); FileReader fReader = new FileReader(fileName); BufferedReader bReader = new BufferedReader(fReader); while (true) { String line = bReader.readLine(); if (line == null) { ...
java
private String[] readFile(String fileName) throws IOException { ArrayList<String> result = new ArrayList<String>(); FileReader fReader = new FileReader(fileName); BufferedReader bReader = new BufferedReader(fReader); while (true) { String line = bReader.readLine(); if (line == null) { ...
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Read a file line by line @param fileName @return String[] contains lines @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java#L75-L89
119,256
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java
LinuxUtilizationGauger.getPS
protected String[] getPS() { ShellCommandExecutor shellExecutor = new ShellCommandExecutor(CMD); try { shellExecutor.execute(); } catch (IOException e) { LOG.error(StringUtils.stringifyException(e)); return null; } return shellExecutor.getOutput().split("\n"); }
java
protected String[] getPS() { ShellCommandExecutor shellExecutor = new ShellCommandExecutor(CMD); try { shellExecutor.execute(); } catch (IOException e) { LOG.error(StringUtils.stringifyException(e)); return null; } return shellExecutor.getOutput().split("\n"); }
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Execute "ps -eo pid,ppid,pcpu,rss,command" @return String[] which contains the execution result
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java#L131-L141
119,257
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java
LinuxUtilizationGauger.parsePS
private String[][] parsePS(String[] psStrings) { String[][] result = new String[psStrings.length-1][NUM_FIELDS]; for (int i = 1; i < psStrings.length; i++) { Matcher matcher = psPattern.matcher(psStrings[i]); if (matcher.find()) { for (int j = 0; j < NUM_FIELDS; j++) { result[i-1][...
java
private String[][] parsePS(String[] psStrings) { String[][] result = new String[psStrings.length-1][NUM_FIELDS]; for (int i = 1; i < psStrings.length; i++) { Matcher matcher = psPattern.matcher(psStrings[i]); if (matcher.find()) { for (int j = 0; j < NUM_FIELDS; j++) { result[i-1][...
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Parse PS results into fields @param psStrings @return fields contains the PS information
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java#L148-L159
119,258
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java
LinuxUtilizationGauger.percentageToGHz
private double percentageToGHz(double cpuUsage) { cpuUsage /= 100; cpuUsage /= ttUtilization.getNumCpu(); cpuUsage *= ttUtilization.getCpuTotalGHz(); return cpuUsage; }
java
private double percentageToGHz(double cpuUsage) { cpuUsage /= 100; cpuUsage /= ttUtilization.getNumCpu(); cpuUsage *= ttUtilization.getCpuTotalGHz(); return cpuUsage; }
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"ps -eo pcpu" gives per core %. We convert it to GHz
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java#L162-L167
119,259
facebookarchive/hadoop-20
src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java
LinuxUtilizationGauger.getSubProcessUsage
private double[] getSubProcessUsage(String pid, Map<String, String[]> pidToContent, Map<String, LinkedList<String>> pidToChildPid) { double cpuMemUsage[] = new double[2]; Queue<String> pidQueue = new LinkedList<String>(); pidQueue.add(pid); while ...
java
private double[] getSubProcessUsage(String pid, Map<String, String[]> pidToContent, Map<String, LinkedList<String>> pidToChildPid) { double cpuMemUsage[] = new double[2]; Queue<String> pidQueue = new LinkedList<String>(); pidQueue.add(pid); while ...
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A function computes the Memory and CPU usage of all subprocess @param pid PID of the process we are interested in @param pidToContent Map between pid and the PS content @param pidToChildPid Map between pid and pid of its child process @return A 2-element array which contants CPU and memory usage
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/hmon/src/java/org/apache/hadoop/mapred/LinuxUtilizationGauger.java#L285-L307
119,260
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/UnderReplicatedBlocks.java
UnderReplicatedBlocks.clear
void clear() { for(int i=0; i<LEVEL; i++) { priorityQueues.get(i).clear(); } raidQueue.clear(); }
java
void clear() { for(int i=0; i<LEVEL; i++) { priorityQueues.get(i).clear(); } raidQueue.clear(); }
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Empty the queues.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/UnderReplicatedBlocks.java#L52-L57
119,261
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/UnderReplicatedBlocks.java
UnderReplicatedBlocks.size
synchronized int size( int priority) { if (priority < 0 || priority >= LEVEL) { throw new IllegalArgumentException("Unsupported priority: " + priority); } return priorityQueues.get(priority).size(); }
java
synchronized int size( int priority) { if (priority < 0 || priority >= LEVEL) { throw new IllegalArgumentException("Unsupported priority: " + priority); } return priorityQueues.get(priority).size(); }
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Return the number of under replication blocks of priority
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/UnderReplicatedBlocks.java#L81-L86
119,262
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/UnderReplicatedBlocks.java
UnderReplicatedBlocks.getSize
synchronized int getSize( int priority ) { int size = 0; for (int i=priority; i<LEVEL; i++) { size += priorityQueues.get(i).size(); } return size; }
java
synchronized int getSize( int priority ) { int size = 0; for (int i=priority; i<LEVEL; i++) { size += priorityQueues.get(i).size(); } return size; }
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get the number of under replicated blocks with equal or higher priority
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/UnderReplicatedBlocks.java#L89-L95
119,263
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/NodeSnapshot.java
NodeSnapshot.removeNode
public void removeNode(ClusterNode node) { String host = node.getHost(); NodeContainer container = hostToRunnableNode.get(host); if (container != null) { if (container.removeNode(node)) { runnableNodeCount--; } if (container.isEmpty()) { hostToRunnableNode.remove(host); ...
java
public void removeNode(ClusterNode node) { String host = node.getHost(); NodeContainer container = hostToRunnableNode.get(host); if (container != null) { if (container.removeNode(node)) { runnableNodeCount--; } if (container.isEmpty()) { hostToRunnableNode.remove(host); ...
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Remove a node from the snapshot. @param node The node.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/NodeSnapshot.java#L84-L103
119,264
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineImageViewer/ImageVisitor.java
ImageVisitor.visit
void visit(ImageElement element, int value) throws IOException { visit(element, Integer.toString(value)); }
java
void visit(ImageElement element, int value) throws IOException { visit(element, Integer.toString(value)); }
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Convenience methods to automatically convert numeric value types to strings
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineImageViewer/ImageVisitor.java#L112-L114
119,265
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineImageViewer/ImageVisitor.java
ImageVisitor.visitEnclosingElement
void visitEnclosingElement(ImageElement element, ImageElement key, int value) throws IOException { visitEnclosingElement(element, key, Integer.toString(value)); }
java
void visitEnclosingElement(ImageElement element, ImageElement key, int value) throws IOException { visitEnclosingElement(element, key, Integer.toString(value)); }
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Convenience methods to automatically convert value types to strings
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineImageViewer/ImageVisitor.java#L149-L153
119,266
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java
Scheduler.addSession
public void addSession(String id, Session session) { for (SchedulerForType scheduleThread : schedulersForTypes.values()) { scheduleThread.addSession(id, session); } }
java
public void addSession(String id, Session session) { for (SchedulerForType scheduleThread : schedulersForTypes.values()) { scheduleThread.addSession(id, session); } }
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Add a session for scheduling. @param id Identifies the session @param session Actual session to be scheduled
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java#L124-L128
119,267
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java
Scheduler.start
public void start() { for (Thread schedulerForType : schedulersForTypes.values()) { LOG.info("Starting " + schedulerForType.getName()); schedulerForType.start(); } configManager.start(); }
java
public void start() { for (Thread schedulerForType : schedulersForTypes.values()) { LOG.info("Starting " + schedulerForType.getName()); schedulerForType.start(); } configManager.start(); }
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Start the scheduling as well as the reloadable configuration manager.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java#L133-L139
119,268
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java
Scheduler.close
public void close() { for (SchedulerForType scheduleThread : schedulersForTypes.values()) { scheduleThread.close(); } for (Thread scheduleThread : schedulersForTypes.values()) { Utilities.waitThreadTermination(scheduleThread); } configManager.close(); }
java
public void close() { for (SchedulerForType scheduleThread : schedulersForTypes.values()) { scheduleThread.close(); } for (Thread scheduleThread : schedulersForTypes.values()) { Utilities.waitThreadTermination(scheduleThread); } configManager.close(); }
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Stop the scheduling and disable the reloadable configuration manager.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java#L152-L160
119,269
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java
Scheduler.getPoolInfoMetrics
public Map<PoolInfo, PoolInfoMetrics> getPoolInfoMetrics(ResourceType type) { return schedulersForTypes.get(type).getPoolInfoMetrics(); }
java
public Map<PoolInfo, PoolInfoMetrics> getPoolInfoMetrics(ResourceType type) { return schedulersForTypes.get(type).getPoolInfoMetrics(); }
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Get an unmodifiable snapshot of the mapping from pool info to associated metrics. @param type Type of resource. @return Unmodifiable snapshot of mapping from pool info to metrics
[ "Get", "an", "unmodifiable", "snapshot", "of", "the", "mapping", "from", "pool", "info", "to", "associated", "metrics", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java#L181-L183
119,270
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java
Scheduler.getPoolInfos
public List<PoolInfo> getPoolInfos() { Set<PoolInfo> poolInfos = new HashSet<PoolInfo>(); for (ResourceType type : types) { poolInfos.addAll(getPoolInfoMetrics(type).keySet()); } List<PoolInfo> result = new ArrayList<PoolInfo>(); result.addAll(poolInfos); Collections.sort(result); retu...
java
public List<PoolInfo> getPoolInfos() { Set<PoolInfo> poolInfos = new HashSet<PoolInfo>(); for (ResourceType type : types) { poolInfos.addAll(getPoolInfoMetrics(type).keySet()); } List<PoolInfo> result = new ArrayList<PoolInfo>(); result.addAll(poolInfos); Collections.sort(result); retu...
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Get a snapshot of the pool infos that is sorted. @return Sorted snapshot of the pool infos.
[ "Get", "a", "snapshot", "of", "the", "pool", "infos", "that", "is", "sorted", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java#L224-L233
119,271
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java
Scheduler.submitMetrics
public void submitMetrics(MetricsRecord metricsRecord) { List<PoolMetadata> poolMetadatas = getPoolMetadataList(); PoolFairnessCalculator.calculateFairness(poolMetadatas, metricsRecord); for (SchedulerForType scheduler: schedulersForTypes.values()) { scheduler.submitMetrics(); } }
java
public void submitMetrics(MetricsRecord metricsRecord) { List<PoolMetadata> poolMetadatas = getPoolMetadataList(); PoolFairnessCalculator.calculateFairness(poolMetadatas, metricsRecord); for (SchedulerForType scheduler: schedulersForTypes.values()) { scheduler.submitMetrics(); } }
[ "public", "void", "submitMetrics", "(", "MetricsRecord", "metricsRecord", ")", "{", "List", "<", "PoolMetadata", ">", "poolMetadatas", "=", "getPoolMetadataList", "(", ")", ";", "PoolFairnessCalculator", ".", "calculateFairness", "(", "poolMetadatas", ",", "metricsRec...
Submit the metrics. @param metricsRecord Where the metrics will be submitted
[ "Submit", "the", "metrics", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/Scheduler.java#L240-L246
119,272
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
TransferFsImage.downloadImageToStorage
static MD5Hash downloadImageToStorage(String fsName, long imageTxId, FSImage fsImage, boolean needDigest) throws IOException { // by default do not disable throttling return downloadImageToStorage(fsName, imageTxId, fsImage, needDigest, false); }
java
static MD5Hash downloadImageToStorage(String fsName, long imageTxId, FSImage fsImage, boolean needDigest) throws IOException { // by default do not disable throttling return downloadImageToStorage(fsName, imageTxId, fsImage, needDigest, false); }
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Download image to local storage with throttling.
[ "Download", "image", "to", "local", "storage", "with", "throttling", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java#L65-L70
119,273
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
TransferFsImage.downloadImageToStorage
static MD5Hash downloadImageToStorage(String fsName, long imageTxId, FSImage dstImage, boolean needDigest, boolean disableThrottle) throws IOException { String fileid = GetImageServlet.getParamStringForImage( imageTxId, dstImage.storage, disableThrottle); List<OutputStream> outputStrea...
java
static MD5Hash downloadImageToStorage(String fsName, long imageTxId, FSImage dstImage, boolean needDigest, boolean disableThrottle) throws IOException { String fileid = GetImageServlet.getParamStringForImage( imageTxId, dstImage.storage, disableThrottle); List<OutputStream> outputStrea...
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Download image to local storage. Throttling can be disabled.
[ "Download", "image", "to", "local", "storage", ".", "Throttling", "can", "be", "disabled", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java#L76-L92
119,274
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
TransferFsImage.uploadImageFromStorage
static void uploadImageFromStorage(String fsName, String machine, int port, NNStorage storage, long txid) throws IOException { String fileid = GetImageServlet.getParamStringToPutImage( txid, machine, port, storage); LOG.info("Image upload: Posted URL " + fsName + fileid); // t...
java
static void uploadImageFromStorage(String fsName, String machine, int port, NNStorage storage, long txid) throws IOException { String fileid = GetImageServlet.getParamStringToPutImage( txid, machine, port, storage); LOG.info("Image upload: Posted URL " + fsName + fileid); // t...
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Requests that the NameNode download an image from this node. @param fsName the http address for the remote NN @param imageListenAddress the host/port where the local node is running an HTTPServer hosting GetImageServlet @param storage the storage directory to transfer the image from @param txid the transaction ID of t...
[ "Requests", "that", "the", "NameNode", "download", "an", "image", "from", "this", "node", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java#L137-L151
119,275
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
TransferFsImage.getFileServer
public static void getFileServer(OutputStream outstream, File localfile, DataTransferThrottler throttler) throws IOException { byte buf[] = new byte[BUFFER_SIZE]; InputStream infile = null; try { infile = new BufferedInputStream(new FileInputStream(localfile), BUFFER_SIZE); if (Injecti...
java
public static void getFileServer(OutputStream outstream, File localfile, DataTransferThrottler throttler) throws IOException { byte buf[] = new byte[BUFFER_SIZE]; InputStream infile = null; try { infile = new BufferedInputStream(new FileInputStream(localfile), BUFFER_SIZE); if (Injecti...
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A server-side method to respond to a getfile http request Copies the contents of the local file into the output stream.
[ "A", "server", "-", "side", "method", "to", "respond", "to", "a", "getfile", "http", "request", "Copies", "the", "contents", "of", "the", "local", "file", "into", "the", "output", "stream", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java#L158-L204
119,276
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
TransferFsImage.getFileServerForPartialFiles
public static void getFileServerForPartialFiles(OutputStream outstream, String filename, InputStream infile, DataTransferThrottler throttler, long startPosition, long lengthToSend) throws IOException { byte buf[] = new byte[BUFFER_SIZE]; try { int num = 1; while (num > 0) { num =...
java
public static void getFileServerForPartialFiles(OutputStream outstream, String filename, InputStream infile, DataTransferThrottler throttler, long startPosition, long lengthToSend) throws IOException { byte buf[] = new byte[BUFFER_SIZE]; try { int num = 1; while (num > 0) { num =...
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A server-side method to respond to a getfile http request Copies the contents of the local file into the output stream, starting at the given position, sending lengthToSend bytes.
[ "A", "server", "-", "side", "method", "to", "respond", "to", "a", "getfile", "http", "request", "Copies", "the", "contents", "of", "the", "local", "file", "into", "the", "output", "stream", "starting", "at", "the", "given", "position", "sending", "lengthToSe...
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java#L211-L244
119,277
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
TransferFsImage.getHttpTimeout
private static int getHttpTimeout(Storage st) { if (!(st instanceof NNStorage)) return DFS_IMAGE_TRANSFER_TIMEOUT_DEFAULT; NNStorage storage = (NNStorage) st; if (storage == null || storage.getConf() == null) { return DFS_IMAGE_TRANSFER_TIMEOUT_DEFAULT; } return storage.getConf().getInt...
java
private static int getHttpTimeout(Storage st) { if (!(st instanceof NNStorage)) return DFS_IMAGE_TRANSFER_TIMEOUT_DEFAULT; NNStorage storage = (NNStorage) st; if (storage == null || storage.getConf() == null) { return DFS_IMAGE_TRANSFER_TIMEOUT_DEFAULT; } return storage.getConf().getInt...
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Get connection and read timeout.
[ "Get", "connection", "and", "read", "timeout", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java#L249-L258
119,278
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java
TransferFsImage.printProgress
private static int printProgress(String str, long received, long advertisedSize, int lastPrinted) { if (advertisedSize == 0) return 0; int currentPercent = (int) ((received * 100) / advertisedSize); if (currentPercent != lastPrinted) FLOG.info("Downloading: " + str + ", completed: " + curr...
java
private static int printProgress(String str, long received, long advertisedSize, int lastPrinted) { if (advertisedSize == 0) return 0; int currentPercent = (int) ((received * 100) / advertisedSize); if (currentPercent != lastPrinted) FLOG.info("Downloading: " + str + ", completed: " + curr...
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Print progress when downloading files.
[ "Print", "progress", "when", "downloading", "files", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/TransferFsImage.java#L378-L386
119,279
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/DNS.java
DNS.reverseDns
@Deprecated public static String reverseDns(InetAddress hostIp, String ns) throws NamingException { // // Builds the reverse IP lookup form // This is formed by reversing the IP numbers and appending in-addr.arpa // String[] parts = hostIp.getHostAddress().split("\\."); String reverseIP = ...
java
@Deprecated public static String reverseDns(InetAddress hostIp, String ns) throws NamingException { // // Builds the reverse IP lookup form // This is formed by reversing the IP numbers and appending in-addr.arpa // String[] parts = hostIp.getHostAddress().split("\\."); String reverseIP = ...
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Returns the hostname associated with the specified IP address by the provided nameserver. @param hostIp The address to reverse lookup @param ns The host name of a reachable DNS server @return The host name associated with the provided IP @throws NamingException If a NamingException is encountered @deprecated Reliance ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/DNS.java#L58-L78
119,280
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/DNS.java
DNS.getIPs
public static String[] getIPs(String strInterface) throws UnknownHostException { try { boolean toGetIpv4 = true; if (System.getProperty(PREFER_IPV6_ADDRESS_PROPERTY) != null) { toGetIpv4 = "false".equals(System .getProperty(PREFER_IPV6_ADDRESS_PROPERTY)); } NetworkInt...
java
public static String[] getIPs(String strInterface) throws UnknownHostException { try { boolean toGetIpv4 = true; if (System.getProperty(PREFER_IPV6_ADDRESS_PROPERTY) != null) { toGetIpv4 = "false".equals(System .getProperty(PREFER_IPV6_ADDRESS_PROPERTY)); } NetworkInt...
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Returns all the IPs associated with the provided interface, if any, in textual form. @param strInterface The name of the network interface to query (e.g. eth0) @return A string vector of all the IPs associated with the provided interface @throws UnknownHostException If an UnknownHostException is encountered in queryin...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/DNS.java#L93-L120
119,281
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/DNS.java
DNS.getDefaultIP
public static String getDefaultIP(String strInterface) throws UnknownHostException { String[] ips = getIPs(strInterface); return ips[0]; }
java
public static String getDefaultIP(String strInterface) throws UnknownHostException { String[] ips = getIPs(strInterface); return ips[0]; }
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Returns the first available IP address associated with the provided network interface @param strInterface The name of the network interface to query (e.g. eth0) @return The IP address in text form @throws UnknownHostException If one is encountered in querying the default interface
[ "Returns", "the", "first", "available", "IP", "address", "associated", "with", "the", "provided", "network", "interface" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/DNS.java#L132-L136
119,282
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/DNS.java
DNS.getHosts
@Deprecated public static String[] getHosts(String strInterface, String nameserver) throws UnknownHostException { String[] ips = getIPs(strInterface); Vector<String> hosts = new Vector<String>(); for (int ctr = 0; ctr < ips.length; ctr++) try { hosts.add(reverseDns(InetAddress.getByName(...
java
@Deprecated public static String[] getHosts(String strInterface, String nameserver) throws UnknownHostException { String[] ips = getIPs(strInterface); Vector<String> hosts = new Vector<String>(); for (int ctr = 0; ctr < ips.length; ctr++) try { hosts.add(reverseDns(InetAddress.getByName(...
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Returns all the host names associated by the provided nameserver with the address bound to the specified network interface @param strInterface The name of the network interface to query (e.g. eth0) @param nameserver The DNS host name @return A string vector of all host names associated with the IPs tied to the specifi...
[ "Returns", "all", "the", "host", "names", "associated", "by", "the", "provided", "nameserver", "with", "the", "address", "bound", "to", "the", "specified", "network", "interface" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/DNS.java#L150-L166
119,283
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.refreshCachedData
private synchronized void refreshCachedData() throws IOException { IOUtils.closeStream(committedTxnId); File currentDir = journalStorage.getSingularStorageDir().getCurrentDir(); this.lastPromisedEpoch = new PersistentLongFile( new File(currentDir, LAST_PROMISED_FILENAME), 0); this.lastWrite...
java
private synchronized void refreshCachedData() throws IOException { IOUtils.closeStream(committedTxnId); File currentDir = journalStorage.getSingularStorageDir().getCurrentDir(); this.lastPromisedEpoch = new PersistentLongFile( new File(currentDir, LAST_PROMISED_FILENAME), 0); this.lastWrite...
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Reload any data that may have been cached. This is necessary when we first load the Journal, but also after any formatting operation, since the cached data is no longer relevant. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L193-L205
119,284
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.copyMetaFilesForUpgrade
private synchronized void copyMetaFilesForUpgrade() throws IOException { Configuration conf = new Configuration(); File currentDir = journalStorage.getSingularStorageDir().getCurrentDir(); File prevDir = journalStorage.getSingularStorageDir().getPreviousTmp(); FileSystem fs = FileSystem.getLocal(conf).g...
java
private synchronized void copyMetaFilesForUpgrade() throws IOException { Configuration conf = new Configuration(); File currentDir = journalStorage.getSingularStorageDir().getCurrentDir(); File prevDir = journalStorage.getSingularStorageDir().getPreviousTmp(); FileSystem fs = FileSystem.getLocal(conf).g...
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After an upgrade we must ensure that the current directory still holds all epoch, committed txid and paxos files that it had before we did the upgrade.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L212-L226
119,285
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.rollbackImage
public void rollbackImage(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getLayoutVersion() != 0, "can't rollback with uninitialized layout version: %s", nsInfo.toColonSeparatedString()); LOG.info("Rolling back image " + this.getJournalId() + " with namespace ...
java
public void rollbackImage(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getLayoutVersion() != 0, "can't rollback with uninitialized layout version: %s", nsInfo.toColonSeparatedString()); LOG.info("Rolling back image " + this.getJournalId() + " with namespace ...
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Rollback the local image storage with the given namespace.
[ "Rollback", "the", "local", "image", "storage", "with", "the", "given", "namespace", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L334-L341
119,286
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.doUpgradeImage
private void doUpgradeImage(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Upgrading image " + this.getJournalId() + " with namespace info...
java
private void doUpgradeImage(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Upgrading image " + this.getJournalId() + " with namespace info...
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Upgrade the local image storage with the given namespace.
[ "Upgrade", "the", "local", "image", "storage", "with", "the", "given", "namespace", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L346-L358
119,287
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.completeUpgradeImage
private void completeUpgradeImage(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Completing Upgrading image " + this.getJournalId() + " wi...
java
private void completeUpgradeImage(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Completing Upgrading image " + this.getJournalId() + " wi...
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Complete the upgrade for local image storage with the given namespace.
[ "Complete", "the", "upgrade", "for", "local", "image", "storage", "with", "the", "given", "namespace", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L363-L372
119,288
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.completeUpgradeJournal
private void completeUpgradeJournal(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Completing Upgrading journal" + this.getJournalId() + "...
java
private void completeUpgradeJournal(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Completing Upgrading journal" + this.getJournalId() + "...
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Complete the upgrade for local journal storage with the given namespace.
[ "Complete", "the", "upgrade", "for", "local", "journal", "storage", "with", "the", "given", "namespace", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L391-L398
119,289
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.rollbackJournal
public void rollbackJournal(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getLayoutVersion() != 0, "can't rollback with uninitialized layout version : %s", nsInfo.toColonSeparatedString()); LOG.info("Rolling back journal " + this.getJournalId() + " with names...
java
public void rollbackJournal(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getLayoutVersion() != 0, "can't rollback with uninitialized layout version : %s", nsInfo.toColonSeparatedString()); LOG.info("Rolling back journal " + this.getJournalId() + " with names...
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Rollback the local journal storage with the given namespace.
[ "Rollback", "the", "local", "journal", "storage", "with", "the", "given", "namespace", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L411-L420
119,290
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.doUpgradeJournal
private void doUpgradeJournal(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Upgrading journal " + this.getJournalId() + " with namespace ...
java
private void doUpgradeJournal(NamespaceInfo nsInfo) throws IOException { Preconditions.checkState(nsInfo.getNamespaceID() != 0, "can't upgrade with uninitialized namespace info: %s", nsInfo.toColonSeparatedString()); LOG.info("Upgrading journal " + this.getJournalId() + " with namespace ...
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Upgrade the local journal storage with the given namespace.
[ "Upgrade", "the", "local", "journal", "storage", "with", "the", "given", "namespace", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L425-L435
119,291
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.recoverJournal
private void recoverJournal(StartupOption startOpt) throws IOException { LOG.info("Recovering journal " + this.getJournalId()); journalStorage.recover(startOpt); }
java
private void recoverJournal(StartupOption startOpt) throws IOException { LOG.info("Recovering journal " + this.getJournalId()); journalStorage.recover(startOpt); }
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Recover the local journal storage.
[ "Recover", "the", "local", "journal", "storage", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L440-L443
119,292
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.recoverImage
private void recoverImage(StartupOption startOpt) throws IOException { LOG.info("Recovering image" + this.getJournalId()); imageStorage.recover(startOpt); }
java
private void recoverImage(StartupOption startOpt) throws IOException { LOG.info("Recovering image" + this.getJournalId()); imageStorage.recover(startOpt); }
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Recover the local image storage.
[ "Recover", "the", "local", "image", "storage", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L448-L451
119,293
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.close
@Override // Closeable public void close() throws IOException { journalStorage.close(); imageStorage.close(); IOUtils.closeStream(committedTxnId); }
java
@Override // Closeable public void close() throws IOException { journalStorage.close(); imageStorage.close(); IOUtils.closeStream(committedTxnId); }
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Unlock and release resources.
[ "Unlock", "and", "release", "resources", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L456-L462
119,294
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.newEpoch
synchronized NewEpochResponseProto newEpoch( NamespaceInfo nsInfo, long epoch) throws IOException { checkJournalStorageFormatted(); journalStorage.checkConsistentNamespace(nsInfo); // if we are storing image too, check consistency as well if (imageStorage.isFormatted()) { imageStorage....
java
synchronized NewEpochResponseProto newEpoch( NamespaceInfo nsInfo, long epoch) throws IOException { checkJournalStorageFormatted(); journalStorage.checkConsistentNamespace(nsInfo); // if we are storing image too, check consistency as well if (imageStorage.isFormatted()) { imageStorage....
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Try to create a new epoch for this journal. @param nsInfo the namespace, which is verified for consistency or used to format, if the Journal has not yet been written to. @param epoch the epoch to start @return the status information necessary to begin recovery @throws IOException if the node has already made a promise ...
[ "Try", "to", "create", "a", "new", "epoch", "for", "this", "journal", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L528-L557
119,295
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.checkRequest
private synchronized void checkRequest(RequestInfo reqInfo) throws IOException { // Invariant 25 from ZAB paper if (reqInfo.getEpoch() < lastPromisedEpoch.get()) { throw new IOException("IPC's epoch " + reqInfo.getEpoch() + " is less than the last promised epoch " + lastPromisedEpoch.g...
java
private synchronized void checkRequest(RequestInfo reqInfo) throws IOException { // Invariant 25 from ZAB paper if (reqInfo.getEpoch() < lastPromisedEpoch.get()) { throw new IOException("IPC's epoch " + reqInfo.getEpoch() + " is less than the last promised epoch " + lastPromisedEpoch.g...
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Ensure that the given request is coming from the correct writer and in-order. @param reqInfo the request info @throws IOException if the request is invalid.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L671-L706
119,296
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.startLogSegment
public synchronized void startLogSegment(RequestInfo reqInfo, long txid) throws IOException { assert fjm != null; checkJournalStorageFormatted(); checkRequest(reqInfo); if (curSegment != null) { LOG.warn("Client is requesting a new log segment " + txid + " though we are alrea...
java
public synchronized void startLogSegment(RequestInfo reqInfo, long txid) throws IOException { assert fjm != null; checkJournalStorageFormatted(); checkRequest(reqInfo); if (curSegment != null) { LOG.warn("Client is requesting a new log segment " + txid + " though we are alrea...
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Start a new segment at the given txid. The previous segment must have already been finalized.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L795-L857
119,297
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.finalizeLogSegment
public synchronized void finalizeLogSegment(RequestInfo reqInfo, long startTxId, long endTxId) throws IOException { checkJournalStorageFormatted(); checkRequest(reqInfo); boolean needsValidation = true; // Finalizing the log that the writer was just writing. if (startTxId == curSegmentTx...
java
public synchronized void finalizeLogSegment(RequestInfo reqInfo, long startTxId, long endTxId) throws IOException { checkJournalStorageFormatted(); checkRequest(reqInfo); boolean needsValidation = true; // Finalizing the log that the writer was just writing. if (startTxId == curSegmentTx...
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Finalize the log segment at the given transaction ID.
[ "Finalize", "the", "log", "segment", "at", "the", "given", "transaction", "ID", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L862-L916
119,298
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.purgePaxosDecision
private void purgePaxosDecision(long segmentTxId) throws IOException { File paxosFile = journalStorage.getPaxosFile(segmentTxId); if (paxosFile.exists()) { if (!paxosFile.delete()) { throw new IOException("Unable to delete paxos file " + paxosFile); } } }
java
private void purgePaxosDecision(long segmentTxId) throws IOException { File paxosFile = journalStorage.getPaxosFile(segmentTxId); if (paxosFile.exists()) { if (!paxosFile.delete()) { throw new IOException("Unable to delete paxos file " + paxosFile); } } }
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Remove the previously-recorded 'accepted recovery' information for a given log segment, once it is no longer necessary. @param segmentTxId the transaction ID to purge @throws IOException if the file could not be deleted
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L950-L957
119,299
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.syncLog
File syncLog(RequestInfo reqInfo, final SegmentStateProto segment, final URL url) throws IOException { long startTxId = segment.getStartTxId(); long epoch = reqInfo.getEpoch(); return syncLog(epoch, segment.getStartTxId(), url, segment.toString(), journalStorage.getSyncLogTemporaryFile(startTx...
java
File syncLog(RequestInfo reqInfo, final SegmentStateProto segment, final URL url) throws IOException { long startTxId = segment.getStartTxId(); long epoch = reqInfo.getEpoch(); return syncLog(epoch, segment.getStartTxId(), url, segment.toString(), journalStorage.getSyncLogTemporaryFile(startTx...
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Synchronize a log segment from another JournalNode. The log is downloaded from the provided URL into a temporary location on disk, which is named based on the current request's epoch. @return the temporary location of the downloaded file
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L1166-L1172