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118,900
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SpillRecord.java
SpillRecord.putIndex
public void putIndex(IndexRecord rec, int partition) { final int pos = partition * MapTask.MAP_OUTPUT_INDEX_RECORD_LENGTH / 8; entries.put(pos, rec.startOffset); entries.put(pos + 1, rec.rawLength); entries.put(pos + 2, rec.partLength); }
java
public void putIndex(IndexRecord rec, int partition) { final int pos = partition * MapTask.MAP_OUTPUT_INDEX_RECORD_LENGTH / 8; entries.put(pos, rec.startOffset); entries.put(pos + 1, rec.rawLength); entries.put(pos + 2, rec.partLength); }
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Set spill offsets for given partition.
[ "Set", "spill", "offsets", "for", "given", "partition", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SpillRecord.java#L102-L107
118,901
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SpillRecord.java
SpillRecord.writeToFile
public void writeToFile(Path loc, JobConf job) throws IOException { writeToFile(loc, job, new PureJavaCrc32()); }
java
public void writeToFile(Path loc, JobConf job) throws IOException { writeToFile(loc, job, new PureJavaCrc32()); }
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Write this spill record to the location provided.
[ "Write", "this", "spill", "record", "to", "the", "location", "provided", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SpillRecord.java#L112-L115
118,902
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java
FairSchedulerServlet.printFilterInfo
static void printFilterInfo(PrintWriter out, String poolFilter, String userFilter, String showAllLink) { if (userFilter != null || poolFilter != null) { StringBuilder customizedInfo = new StringBuilder("Only showing "); if (poolFilter != null) { customizedInfo.append("pool(s) " + poolFilte...
java
static void printFilterInfo(PrintWriter out, String poolFilter, String userFilter, String showAllLink) { if (userFilter != null || poolFilter != null) { StringBuilder customizedInfo = new StringBuilder("Only showing "); if (poolFilter != null) { customizedInfo.append("pool(s) " + poolFilte...
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Print the filter information for pools and users @param out Where the output is dumped @param poolFilter Comma separated list of pools, null for none @param userSet Comma separated list of users, null for none @param showAllLink Link to show everything
[ "Print", "the", "filter", "information", "for", "pools", "and", "users" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java#L286-L302
118,903
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java
FairSchedulerServlet.showAdminFormPreemption
private void showAdminFormPreemption(PrintWriter out, boolean advancedView) { out.print("<h2>Task Preemption</h2>\n"); String advParam = advancedView ? "&advanced" : ""; out.print(generateSelect(Arrays.asList("On,Off".split(",")), scheduler.isPreemptionEnabled() ? "On" : "Off", "...
java
private void showAdminFormPreemption(PrintWriter out, boolean advancedView) { out.print("<h2>Task Preemption</h2>\n"); String advParam = advancedView ? "&advanced" : ""; out.print(generateSelect(Arrays.asList("On,Off".split(",")), scheduler.isPreemptionEnabled() ? "On" : "Off", "...
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Print the administration form for preemption
[ "Print", "the", "administration", "form", "for", "preemption" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java#L735-L741
118,904
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java
FairSchedulerServlet.showAdminFormMemBasedLoadMgr
private void showAdminFormMemBasedLoadMgr(PrintWriter out, boolean advancedView) { if (!(loadMgr instanceof MemBasedLoadManager)) { return; } out.print("<h2>Memory Based Scheduling</h2>\n"); MemBasedLoadManager memLoadMgr = (MemBasedLoadManager)loadMgr; ...
java
private void showAdminFormMemBasedLoadMgr(PrintWriter out, boolean advancedView) { if (!(loadMgr instanceof MemBasedLoadManager)) { return; } out.print("<h2>Memory Based Scheduling</h2>\n"); MemBasedLoadManager memLoadMgr = (MemBasedLoadManager)loadMgr; ...
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Print the administration form for the MemBasedLoadManager
[ "Print", "the", "administration", "form", "for", "the", "MemBasedLoadManager" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java#L746-L761
118,905
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java
FairSchedulerServlet.showCluster
static void showCluster( PrintWriter out, boolean advancedView, JobTracker jobTracker) { String cluster = ""; try { cluster = JSPUtil.generateClusterResTable(jobTracker); if (cluster.equals("")) { return; } } catch (IOException e) { return; } out.print("<h2>Clus...
java
static void showCluster( PrintWriter out, boolean advancedView, JobTracker jobTracker) { String cluster = ""; try { cluster = JSPUtil.generateClusterResTable(jobTracker); if (cluster.equals("")) { return; } } catch (IOException e) { return; } out.print("<h2>Clus...
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Print the cluster resource utilization
[ "Print", "the", "cluster", "resource", "utilization" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java#L766-L779
118,906
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java
FairSchedulerServlet.showNumTaskPerHeartBeatOption
private void showNumTaskPerHeartBeatOption( PrintWriter out, boolean advancedView) { out.print("<h2>Number of Assigned Tasks Per HeartBeat</h2>\n"); out.printf("<p>Number of map tasks assigned per heartbeat:%s", generateSelect(Arrays.asList("1,2,3,4,5,6,7,8,9,10".split(",")), ...
java
private void showNumTaskPerHeartBeatOption( PrintWriter out, boolean advancedView) { out.print("<h2>Number of Assigned Tasks Per HeartBeat</h2>\n"); out.printf("<p>Number of map tasks assigned per heartbeat:%s", generateSelect(Arrays.asList("1,2,3,4,5,6,7,8,9,10".split(",")), ...
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Print the UI that allows us to change the number of tasks assigned per heartbeat.
[ "Print", "the", "UI", "that", "allows", "us", "to", "change", "the", "number", "of", "tasks", "assigned", "per", "heartbeat", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java#L785-L800
118,907
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java
FairSchedulerServlet.getInitedJobs
private Collection<JobInProgress> getInitedJobs() { Collection<JobInProgress> runningJobs = jobTracker.getRunningJobs(); for (Iterator<JobInProgress> it = runningJobs.iterator(); it.hasNext();) { JobInProgress job = it.next(); if (!job.inited()) { it.remove(); } } return runnin...
java
private Collection<JobInProgress> getInitedJobs() { Collection<JobInProgress> runningJobs = jobTracker.getRunningJobs(); for (Iterator<JobInProgress> it = runningJobs.iterator(); it.hasNext();) { JobInProgress job = it.next(); if (!job.inited()) { it.remove(); } } return runnin...
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Obtained all initialized jobs
[ "Obtained", "all", "initialized", "jobs" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairSchedulerServlet.java#L805-L814
118,908
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/pipes/Submitter.java
Submitter.setIfUnset
private static void setIfUnset(JobConf conf, String key, String value) { if (conf.get(key) == null) { conf.set(key, value); } }
java
private static void setIfUnset(JobConf conf, String key, String value) { if (conf.get(key) == null) { conf.set(key, value); } }
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Set the configuration, if it doesn't already have a value for the given key. @param conf the configuration to modify @param key the key to set @param value the new "default" value to set
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/pipes/Submitter.java#L177-L181
118,909
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/pipes/Submitter.java
Submitter.main
public static void main(String[] args) throws Exception { int exitCode = new Submitter().run(args); System.exit(exitCode); }
java
public static void main(String[] args) throws Exception { int exitCode = new Submitter().run(args); System.exit(exitCode); }
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Submit a pipes job based on the command line arguments. @param args
[ "Submit", "a", "pipes", "job", "based", "on", "the", "command", "line", "arguments", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/pipes/Submitter.java#L493-L496
118,910
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.loadEnabledPermissionCheckingDirs
private void loadEnabledPermissionCheckingDirs(Configuration conf) throws IOException { if (this.isPermissionEnabled) { String[] permissionCheckingDirs = conf.getStrings("dfs.permissions.checking.paths", "/"); int numDirs = permissionCheckingDirs.length; if (numDirs == 0) { ...
java
private void loadEnabledPermissionCheckingDirs(Configuration conf) throws IOException { if (this.isPermissionEnabled) { String[] permissionCheckingDirs = conf.getStrings("dfs.permissions.checking.paths", "/"); int numDirs = permissionCheckingDirs.length; if (numDirs == 0) { ...
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Load the predefined paths that should enable permission checking, each of which represents the root of a subtree whose nodes should check permission @param conf configuration @throws IOException if a predefine path does not exist
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L658-L678
118,911
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.isPermissionCheckingEnabled
private boolean isPermissionCheckingEnabled(INode[] pathNodes) { if (this.isPermissionEnabled) { if (permissionEnabled == null) { return false; } for (INode enableDir : this.permissionEnabled) { for (INode pathNode : pathNodes) { if (pathNode == enableDir) { r...
java
private boolean isPermissionCheckingEnabled(INode[] pathNodes) { if (this.isPermissionEnabled) { if (permissionEnabled == null) { return false; } for (INode enableDir : this.permissionEnabled) { for (INode pathNode : pathNodes) { if (pathNode == enableDir) { r...
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Check if a path is predefined to enable permission checking
[ "Check", "if", "a", "path", "is", "predefined", "to", "enable", "permission", "checking" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L681-L696
118,912
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.setHeartbeatInterval
private void setHeartbeatInterval(long heartbeatInterval, long heartbeatRecheckInterval) { this.heartbeatInterval = heartbeatInterval; this.heartbeatRecheckInterval = heartbeatRecheckInterval; this.heartbeatExpireInterval = 2 * heartbeatRecheckInterval + 10 * heartb...
java
private void setHeartbeatInterval(long heartbeatInterval, long heartbeatRecheckInterval) { this.heartbeatInterval = heartbeatInterval; this.heartbeatRecheckInterval = heartbeatRecheckInterval; this.heartbeatExpireInterval = 2 * heartbeatRecheckInterval + 10 * heartb...
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Set parameters derived from heartbeat interval.
[ "Set", "parameters", "derived", "from", "heartbeat", "interval", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L732-L742
118,913
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.stopLeaseMonitor
public void stopLeaseMonitor() throws InterruptedException { if (lmmonitor != null) { lmmonitor.stop(); InjectionHandler .processEvent(InjectionEvent.FSNAMESYSTEM_STOP_LEASEMANAGER); } if (lmthread != null) { // interrupt the lease monitor thread. We need to make sure the /...
java
public void stopLeaseMonitor() throws InterruptedException { if (lmmonitor != null) { lmmonitor.stop(); InjectionHandler .processEvent(InjectionEvent.FSNAMESYSTEM_STOP_LEASEMANAGER); } if (lmthread != null) { // interrupt the lease monitor thread. We need to make sure the /...
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Stops lease monitor thread.
[ "Stops", "lease", "monitor", "thread", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L901-L921
118,914
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.close
public void close() { fsRunning = false; try { if (pendingReplications != null) { pendingReplications.stop(); } if (hbthread != null) { hbthread.interrupt(); } if (underreplthread != null) { underreplthread.interrupt(); } if (overreplthread...
java
public void close() { fsRunning = false; try { if (pendingReplications != null) { pendingReplications.stop(); } if (hbthread != null) { hbthread.interrupt(); } if (underreplthread != null) { underreplthread.interrupt(); } if (overreplthread...
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Close down this file system manager. Causes heartbeat and lease daemons to stop; waits briefly for them to finish, but a short timeout returns control back to caller.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L928-L978
118,915
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.metaSave
void metaSave(String filename) throws IOException { readLock(); try { checkSuperuserPrivilege(); File file = new File(System.getProperty("hadoop.log.dir"), filename); PrintWriter out = new PrintWriter(new BufferedWriter( new FileWriter(file, true))); // // Dum...
java
void metaSave(String filename) throws IOException { readLock(); try { checkSuperuserPrivilege(); File file = new File(System.getProperty("hadoop.log.dir"), filename); PrintWriter out = new PrintWriter(new BufferedWriter( new FileWriter(file, true))); // // Dum...
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Dump all metadata into specified file
[ "Dump", "all", "metadata", "into", "specified", "file" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L1002-L1079
118,916
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.addBlock
private long addBlock(Block block, List<BlockWithLocations> results) { ArrayList<String> machineSet = new ArrayList<String>(blocksMap.numNodes(block)); for (Iterator<DatanodeDescriptor> it = blocksMap.nodeIterator(block); it.hasNext();) { String storageID = it.next().getStorageID(); // f...
java
private long addBlock(Block block, List<BlockWithLocations> results) { ArrayList<String> machineSet = new ArrayList<String>(blocksMap.numNodes(block)); for (Iterator<DatanodeDescriptor> it = blocksMap.nodeIterator(block); it.hasNext();) { String storageID = it.next().getStorageID(); // f...
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Get all valid locations of the block & add the block to results return the length of the added block; 0 if the block is not added
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L1185-L1204
118,917
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.setPermission
public void setPermission(String src, FsPermission permission ) throws IOException { INode[] inodes = null; writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot set permission for " + src, safeMode); } inodes = dir.getExistingPathINodes(src); if (isP...
java
public void setPermission(String src, FsPermission permission ) throws IOException { INode[] inodes = null; writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot set permission for " + src, safeMode); } inodes = dir.getExistingPathINodes(src); if (isP...
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Set permissions for an existing file. @throws IOException
[ "Set", "permissions", "for", "an", "existing", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L1217-L1239
118,918
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.setOwner
public void setOwner(String src, String username, String group ) throws IOException { INode[] inodes = null; writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot set permission for " + src, safeMode); } inodes = dir.getExistingPathINodes(src); if (is...
java
public void setOwner(String src, String username, String group ) throws IOException { INode[] inodes = null; writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot set permission for " + src, safeMode); } inodes = dir.getExistingPathINodes(src); if (is...
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Set owner for an existing file. @throws IOException
[ "Set", "owner", "for", "an", "existing", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L1246-L1289
118,919
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.updateDatanodeInfo
LocatedBlocksWithMetaInfo updateDatanodeInfo(LocatedBlocks locatedBlocks) throws IOException { if (locatedBlocks.getLocatedBlocks().size() == 0) return new LocatedBlocksWithMetaInfo(locatedBlocks.getFileLength(), locatedBlocks.getLocatedBlocks(), false, DataTransferProtocol.DATA_TRAN...
java
LocatedBlocksWithMetaInfo updateDatanodeInfo(LocatedBlocks locatedBlocks) throws IOException { if (locatedBlocks.getLocatedBlocks().size() == 0) return new LocatedBlocksWithMetaInfo(locatedBlocks.getFileLength(), locatedBlocks.getLocatedBlocks(), false, DataTransferProtocol.DATA_TRAN...
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Updates DatanodeInfo for each LocatedBlock in locatedBlocks.
[ "Updates", "DatanodeInfo", "for", "each", "LocatedBlock", "in", "locatedBlocks", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L1301-L1360
118,920
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.setTimes
public void setTimes(String src, long mtime, long atime) throws IOException { if ( !accessTimeTouchable && atime != -1) { throw new AccessTimeException("setTimes is not allowed for accessTime"); } setTimesInternal(src, mtime, atime); getEditLog().logSync(false); }
java
public void setTimes(String src, long mtime, long atime) throws IOException { if ( !accessTimeTouchable && atime != -1) { throw new AccessTimeException("setTimes is not allowed for accessTime"); } setTimesInternal(src, mtime, atime); getEditLog().logSync(false); }
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stores the modification and access time for this inode. The access time is precise upto an hour. The transaction, if needed, is written to the edits log but is not flushed.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L1898-L1904
118,921
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.verifyReplication
private void verifyReplication(String src, short replication, String clientName ) throws IOException { String text = "file " + src + ((clientName != null) ? " on client " + clientName : "") + ".\n" + "Requested replication " + rep...
java
private void verifyReplication(String src, short replication, String clientName ) throws IOException { String text = "file " + src + ((clientName != null) ? " on client " + clientName : "") + ".\n" + "Requested replication " + rep...
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Check whether the replication parameter is within the range determined by system configuration.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2027-L2044
118,922
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.startFile
void startFile(String src, PermissionStatus permissions, String holder, String clientMachine, boolean overwrite, boolean createParent, short replication, long blockSize ) throws IOException { INodeFileUnderConstruction file = startFileInternal(src, permissions, holder, clie...
java
void startFile(String src, PermissionStatus permissions, String holder, String clientMachine, boolean overwrite, boolean createParent, short replication, long blockSize ) throws IOException { INodeFileUnderConstruction file = startFileInternal(src, permissions, holder, clie...
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Create a new file entry in the namespace. @throws IOException if file name is invalid {@link FSDirectory#isValidToCreate(String)}. @see ClientProtocol#create(String, FsPermission, String, boolean, short, long)
[ "Create", "a", "new", "file", "entry", "in", "the", "namespace", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2071-L2084
118,923
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.recoverLease
boolean recoverLease(String src, String holder, String clientMachine, boolean discardLastBlock) throws IOException { // convert names to array of bytes w/o holding lock byte[][] components = INodeDirectory.getPathComponents(src); writeLock(); try { if (isInSafeMode...
java
boolean recoverLease(String src, String holder, String clientMachine, boolean discardLastBlock) throws IOException { // convert names to array of bytes w/o holding lock byte[][] components = INodeDirectory.getPathComponents(src); writeLock(); try { if (isInSafeMode...
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Recover lease; Immediately revoke the lease of the current lease holder and start lease recovery so that the file can be forced to be closed. @param src the path of the file to start lease recovery @param holder the lease holder's name @param clientMachine the client machine's name @param discardLastBlock if true, the...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2257-L2290
118,924
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.getAdditionalBlock
public LocatedBlock getAdditionalBlock(String src, String clientName ) throws IOException { return getAdditionalBlock(src, clientName, null); }
java
public LocatedBlock getAdditionalBlock(String src, String clientName ) throws IOException { return getAdditionalBlock(src, clientName, null); }
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Stub for old callers pre-HDFS-630
[ "Stub", "for", "old", "callers", "pre", "-", "HDFS", "-", "630" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2472-L2476
118,925
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.findBestDatanodeInCluster
private DatanodeDescriptor[] findBestDatanodeInCluster( List<DatanodeInfo> infos, int replication) throws IOException { int targetReplication = Math.min(infos.size(), replication); DatanodeDescriptor[] dns = new DatanodeDescriptor[targetReplication]; boolean[] changedRacks = new boolean[targetRe...
java
private DatanodeDescriptor[] findBestDatanodeInCluster( List<DatanodeInfo> infos, int replication) throws IOException { int targetReplication = Math.min(infos.size(), replication); DatanodeDescriptor[] dns = new DatanodeDescriptor[targetReplication]; boolean[] changedRacks = new boolean[targetRe...
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Given information about an array of datanodes, returns an array of DatanodeDescriptors for the same, or if it doesn't find the datanode, it looks for a machine local and then rack local datanode, if a rack local datanode is not possible either, it returns the DatanodeDescriptor of any random node in the cluster. @para...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2495-L2571
118,926
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.setLastBlockSize
private void setLastBlockSize(INodeFileUnderConstruction pendingFile) { Block block = pendingFile.getLastBlock(); if (block != null) { block.setNumBytes(pendingFile.getPreferredBlockSize()); } }
java
private void setLastBlockSize(INodeFileUnderConstruction pendingFile) { Block block = pendingFile.getLastBlock(); if (block != null) { block.setNumBytes(pendingFile.getPreferredBlockSize()); } }
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Set last block's block size to be the file's default block size @param file file inode under construction
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2877-L2882
118,927
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.replicateLastBlock
private void replicateLastBlock(String src, INodeFileUnderConstruction file) { BlockInfo[] blks = file.getBlocks(); if (blks == null || blks.length == 0) return; BlockInfo block = blks[blks.length-1]; DatanodeDescriptor[] targets = file.getValidTargets(); final int numOfTargets = targets == nu...
java
private void replicateLastBlock(String src, INodeFileUnderConstruction file) { BlockInfo[] blks = file.getBlocks(); if (blks == null || blks.length == 0) return; BlockInfo block = blks[blks.length-1]; DatanodeDescriptor[] targets = file.getValidTargets(); final int numOfTargets = targets == nu...
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Check last block of the file under construction Replicate it if it is under replicated @param src the file name @param file the file's inode
[ "Check", "last", "block", "of", "the", "file", "under", "construction", "Replicate", "it", "if", "it", "is", "under", "replicated" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2890-L2923
118,928
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.abandonBlock
public boolean abandonBlock(Block b, String src, String holder ) throws IOException { writeLock(); try { // // Remove the block from the pending creates list // if (NameNode.stateChangeLog.isDebugEnabled()) { NameNode.stateChangeLog.debug("BLOCK* NameSystem.abandonBlock: " ...
java
public boolean abandonBlock(Block b, String src, String holder ) throws IOException { writeLock(); try { // // Remove the block from the pending creates list // if (NameNode.stateChangeLog.isDebugEnabled()) { NameNode.stateChangeLog.debug("BLOCK* NameSystem.abandonBlock: " ...
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The client would like to let go of the given block
[ "The", "client", "would", "like", "to", "let", "go", "of", "the", "given", "block" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L2928-L2954
118,929
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.checkLease
private INodeFileUnderConstruction checkLease(String src, String holder) throws IOException { INodeFile file = dir.getFileINode(src); return checkLease(src, holder, file); }
java
private INodeFileUnderConstruction checkLease(String src, String holder) throws IOException { INodeFile file = dir.getFileINode(src); return checkLease(src, holder, file); }
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make sure that we still have the lease on this file.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3099-L3103
118,930
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.allocateBlock
private Block allocateBlock(String src, INode[] inodes) throws IOException { Block b = new Block(generateBlockId(), 0, 0); while (isValidBlock(b)) { b.setBlockId(generateBlockId()); } b.setGenerationStamp(getGenerationStamp()); b = dir.addBlock(src, inodes, b); return b; }
java
private Block allocateBlock(String src, INode[] inodes) throws IOException { Block b = new Block(generateBlockId(), 0, 0); while (isValidBlock(b)) { b.setBlockId(generateBlockId()); } b.setGenerationStamp(getGenerationStamp()); b = dir.addBlock(src, inodes, b); return b; }
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Allocate a block at the given pending filename @param src path to the file @param inodes INode representing each of the components of src. <code>inodes[inodes.length-1]</code> is the INode for the file.
[ "Allocate", "a", "block", "at", "the", "given", "pending", "filename" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3307-L3315
118,931
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.allocateParityBlocks
private Block[] allocateParityBlocks(int numParityBlocks) throws IOException { Block[] blocks = new Block[numParityBlocks]; for (int i = 0; i < numParityBlocks; i++) { Block b = new Block(generateBlockId(), 0, 0); while (isValidBlock(b)) { b.setBlockId(generateBlockId()); } b.set...
java
private Block[] allocateParityBlocks(int numParityBlocks) throws IOException { Block[] blocks = new Block[numParityBlocks]; for (int i = 0; i < numParityBlocks; i++) { Block b = new Block(generateBlockId(), 0, 0); while (isValidBlock(b)) { b.setBlockId(generateBlockId()); } b.set...
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Allocate a number of parity blocks Require a write lock @param numParityBlocks
[ "Allocate", "a", "number", "of", "parity", "blocks", "Require", "a", "write", "lock" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3322-L3333
118,932
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.checkFileProgress
boolean checkFileProgress(INodeFile v, boolean checkall) throws IOException { INode.enforceRegularStorageINode(v, "checkFileProgress is not supported for non-regular files"); if (checkall) { // // check all blocks of the file. // int closeFileReplicationMin = Math.m...
java
boolean checkFileProgress(INodeFile v, boolean checkall) throws IOException { INode.enforceRegularStorageINode(v, "checkFileProgress is not supported for non-regular files"); if (checkall) { // // check all blocks of the file. // int closeFileReplicationMin = Math.m...
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Check that the indicated file's blocks are present and replicated. If not, return false. If checkall is true, then check all blocks, otherwise check only penultimate block.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3340-L3363
118,933
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.removeFromInvalidates
void removeFromInvalidates(String storageID) { LightWeightHashSet<Block> blocks = recentInvalidateSets.remove(storageID); if (blocks != null) { pendingDeletionBlocksCount -= blocks.size(); } }
java
void removeFromInvalidates(String storageID) { LightWeightHashSet<Block> blocks = recentInvalidateSets.remove(storageID); if (blocks != null) { pendingDeletionBlocksCount -= blocks.size(); } }
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Remove a datanode from the invalidatesSet @param n datanode
[ "Remove", "a", "datanode", "from", "the", "invalidatesSet" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3386-L3391
118,934
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.addToInvalidates
void addToInvalidates(Block b, DatanodeInfo n, boolean ackRequired) { addToInvalidatesNoLog(b, n, ackRequired); if (isInitialized && !isInSafeModeInternal()) { // do not log in startup phase NameNode.stateChangeLog.info("BLOCK* NameSystem.addToInvalidates: " + b.getBlockName() + " is added t...
java
void addToInvalidates(Block b, DatanodeInfo n, boolean ackRequired) { addToInvalidatesNoLog(b, n, ackRequired); if (isInitialized && !isInSafeModeInternal()) { // do not log in startup phase NameNode.stateChangeLog.info("BLOCK* NameSystem.addToInvalidates: " + b.getBlockName() + " is added t...
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Adds block to list of blocks which will be invalidated on specified datanode and log the move @param b block @param n datanode
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3400-L3407
118,935
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.addToInvalidatesNoLog
void addToInvalidatesNoLog(Block b, DatanodeInfo n, boolean ackRequired) { // We are the standby avatar and we don't want to add blocks to the // invalidates list. if (this.getNameNode().shouldRetryAbsentBlocks()) { return; } LightWeightHashSet<Block> invalidateSet = recentInvalidateSets.get(...
java
void addToInvalidatesNoLog(Block b, DatanodeInfo n, boolean ackRequired) { // We are the standby avatar and we don't want to add blocks to the // invalidates list. if (this.getNameNode().shouldRetryAbsentBlocks()) { return; } LightWeightHashSet<Block> invalidateSet = recentInvalidateSets.get(...
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Adds block to list of blocks which will be invalidated on specified datanode @param b block @param n datanode
[ "Adds", "block", "to", "list", "of", "blocks", "which", "will", "be", "invalidated", "on", "specified", "datanode" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3416-L3435
118,936
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.addToInvalidates
private void addToInvalidates(Block b, boolean ackRequired) { StringBuilder sb = new StringBuilder(); for (Iterator<DatanodeDescriptor> it = blocksMap.nodeIterator(b); it.hasNext();) { DatanodeDescriptor node = it.next(); addToInvalidatesNoLog(b, node, ackRequired); sb.append(node.getNam...
java
private void addToInvalidates(Block b, boolean ackRequired) { StringBuilder sb = new StringBuilder(); for (Iterator<DatanodeDescriptor> it = blocksMap.nodeIterator(b); it.hasNext();) { DatanodeDescriptor node = it.next(); addToInvalidatesNoLog(b, node, ackRequired); sb.append(node.getNam...
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Adds block to list of blocks which will be invalidated on all its datanodes.
[ "Adds", "block", "to", "list", "of", "blocks", "which", "will", "be", "invalidated", "on", "all", "its", "datanodes", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3441-L3455
118,937
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.markBlockAsCorrupt
public void markBlockAsCorrupt(Block blk, DatanodeInfo dn, final boolean parallelInitialBlockReport) throws IOException { if (!parallelInitialBlockReport) { // regular call, not through parallel block report writeLock(); } lockParallelBRLock(parallelInitialBlockReport); try { ...
java
public void markBlockAsCorrupt(Block blk, DatanodeInfo dn, final boolean parallelInitialBlockReport) throws IOException { if (!parallelInitialBlockReport) { // regular call, not through parallel block report writeLock(); } lockParallelBRLock(parallelInitialBlockReport); try { ...
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Mark the block belonging to datanode as corrupt @param blk Block to be marked as corrupt @param dn Datanode which holds the corrupt replica @param parallelInitialBlockReport indicates that this call is a result of parallel initial block report
[ "Mark", "the", "block", "belonging", "to", "datanode", "as", "corrupt" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3508-L3567
118,938
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.invalidateBlock
private void invalidateBlock(Block blk, DatanodeInfo dn, boolean ackRequired) throws IOException { NameNode.stateChangeLog.info("DIR* NameSystem.invalidateBlock: " + blk + " on " + dn.getName()); DatanodeDescriptor node = getDatanode(dn); if (node == null) { throw new IOException("Cann...
java
private void invalidateBlock(Block blk, DatanodeInfo dn, boolean ackRequired) throws IOException { NameNode.stateChangeLog.info("DIR* NameSystem.invalidateBlock: " + blk + " on " + dn.getName()); DatanodeDescriptor node = getDatanode(dn); if (node == null) { throw new IOException("Cann...
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Invalidates the given block on the given datanode.
[ "Invalidates", "the", "given", "block", "on", "the", "given", "datanode", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3572-L3601
118,939
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.hardLinkTo
public boolean hardLinkTo(String src, String dst) throws IOException { INode dstNode = hardLinkToInternal(src, dst); getEditLog().logSync(false); if (dstNode != null && auditLog.isInfoEnabled()) { logAuditEvent(getCurrentUGI(), Server.getRemoteIp(), "hardlink", src, dst, dstNode); } ...
java
public boolean hardLinkTo(String src, String dst) throws IOException { INode dstNode = hardLinkToInternal(src, dst); getEditLog().logSync(false); if (dstNode != null && auditLog.isInfoEnabled()) { logAuditEvent(getCurrentUGI(), Server.getRemoteIp(), "hardlink", src, dst, dstNode); } ...
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Create the hard link from src file to the dest file.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3624-L3632
118,940
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.deleteInternal
boolean deleteInternal(String src, INode[] inodes, boolean recursive, boolean enforcePermission) throws IOException { ArrayList<BlockInfo> collectedBlocks = new ArrayList<BlockInfo>(); INode targetNode = null; byte[][] components = inodes == null ? INodeDirectory.getPathCompo...
java
boolean deleteInternal(String src, INode[] inodes, boolean recursive, boolean enforcePermission) throws IOException { ArrayList<BlockInfo> collectedBlocks = new ArrayList<BlockInfo>(); INode targetNode = null; byte[][] components = inodes == null ? INodeDirectory.getPathCompo...
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Remove the indicated filename from the namespace. This may invalidate some blocks that make up the file.
[ "Remove", "the", "indicated", "filename", "from", "the", "namespace", ".", "This", "may", "invalidate", "some", "blocks", "that", "make", "up", "the", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3789-L3860
118,941
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.removeBlocks
private void removeBlocks(List<BlockInfo> blocks) { if (blocks == null) { return; } for (BlockInfo b : blocks) { removeFromExcessReplicateMap(b); neededReplications.remove(b, -1); corruptReplicas.removeFromCorruptReplicasMap(b); if (pendingReplications != null) { int re...
java
private void removeBlocks(List<BlockInfo> blocks) { if (blocks == null) { return; } for (BlockInfo b : blocks) { removeFromExcessReplicateMap(b); neededReplications.remove(b, -1); corruptReplicas.removeFromCorruptReplicasMap(b); if (pendingReplications != null) { int re...
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From the given list, incrementally remove the blocks. Add the blocks to invalidates, and set a flag that explicit ACK from DataNode is not required. This function should be used only for deleting entire files.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3867-L3884
118,942
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.removePathAndBlocks
void removePathAndBlocks(String src, List<BlockInfo> blocks) throws IOException { // No need for lock until we start accepting requests from clients. assert (!nameNode.isRpcServerRunning() || hasWriteLock()); leaseManager.removeLeaseWithPrefixPath(src); removeBlocks(blocks); }
java
void removePathAndBlocks(String src, List<BlockInfo> blocks) throws IOException { // No need for lock until we start accepting requests from clients. assert (!nameNode.isRpcServerRunning() || hasWriteLock()); leaseManager.removeLeaseWithPrefixPath(src); removeBlocks(blocks); }
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Remove the blocks from the given list. Also, remove the path. Add the blocks to invalidates, and set a flag that explicit ACK from DataNode is not required. This function should be used only for deleting entire files.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L3891-L3896
118,943
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.fsync
void fsync(String src, String clientName) throws IOException { NameNode.stateChangeLog.info("BLOCK* NameSystem.fsync: file " + src + " for " + clientName); writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot fsync file " + src, safeMode); } INodeFile...
java
void fsync(String src, String clientName) throws IOException { NameNode.stateChangeLog.info("BLOCK* NameSystem.fsync: file " + src + " for " + clientName); writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot fsync file " + src, safeMode); } INodeFile...
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Persist all metadata about this file. @param src The string representation of the path @param clientName The string representation of the client @throws IOException if path does not exist
[ "Persist", "all", "metadata", "about", "this", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L4108-L4130
118,944
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.internalReleaseLease
void internalReleaseLease(Lease lease, String src, INodeFileUnderConstruction pendingFile) throws IOException { if (lease.hasPath()) { // make a copy of the paths because internalReleaseLeaseOne removes // pathnames from the lease record. String[] leasePaths = new String[lease.getPaths().siz...
java
void internalReleaseLease(Lease lease, String src, INodeFileUnderConstruction pendingFile) throws IOException { if (lease.hasPath()) { // make a copy of the paths because internalReleaseLeaseOne removes // pathnames from the lease record. String[] leasePaths = new String[lease.getPaths().siz...
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This is invoked when a lease expires. On lease expiry, all the files that were written from that dfsclient should be recovered.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L4137-L4152
118,945
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.discardDone
private boolean discardDone(INodeFileUnderConstruction pendingFile, String src) throws IOException { Block[] blocks = pendingFile.getBlocks(); if (blocks == null || blocks.length == 0) { return false; } Block last = blocks[blocks.length-1]; if (last.getNumBytes() ...
java
private boolean discardDone(INodeFileUnderConstruction pendingFile, String src) throws IOException { Block[] blocks = pendingFile.getBlocks(); if (blocks == null || blocks.length == 0) { return false; } Block last = blocks[blocks.length-1]; if (last.getNumBytes() ...
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the last block completely.
[ "the", "last", "block", "completely", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L4238-L4254
118,946
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.updatePipeline
void updatePipeline(String clientName, Block oldBlock, Block newBlock, List<DatanodeID> newNodes) throws IOException { LOG.info("updatePipeline(block=" + oldBlock + ", newGenerationStamp=" + newBlock.getGenerationStamp() + ", newLength=" + newBlock.getNumBytes() + ", newNodes=" + newN...
java
void updatePipeline(String clientName, Block oldBlock, Block newBlock, List<DatanodeID> newNodes) throws IOException { LOG.info("updatePipeline(block=" + oldBlock + ", newGenerationStamp=" + newBlock.getGenerationStamp() + ", newLength=" + newBlock.getNumBytes() + ", newNodes=" + newN...
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Update a pipeline for a block under construction @param clientName the name of the client @param oldBlock an old block @param newBlock a new block with a new generation stamp and length @param newNodes if any error occurs @throws IOException
[ "Update", "a", "pipeline", "for", "a", "block", "under", "construction" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L4478-L4547
118,947
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.newStorageID
private String newStorageID() { String newID = null; while (newID == null) { newID = "DS" + Integer.toString(r.nextInt()); if (datanodeMap.get(newID) != null) { newID = null; } } return newID; }
java
private String newStorageID() { String newID = null; while (newID == null) { newID = "DS" + Integer.toString(r.nextInt()); if (datanodeMap.get(newID) != null) { newID = null; } } return newID; }
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Generate new storage ID. @return unique storage ID <p/> Note: that collisions are still possible if somebody will try to bring in a data storage from a different cluster.
[ "Generate", "new", "storage", "ID", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L4845-L4854
118,948
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.computeDatanodeWork
public int computeDatanodeWork() throws IOException { int workFound = 0; int blocksToProcess = 0; int nodesToProcess = 0; // blocks should not be replicated or removed if safe mode is on if (isInSafeMode()) { updateReplicationCounts(workFound); return workFound; } synchronized (h...
java
public int computeDatanodeWork() throws IOException { int workFound = 0; int blocksToProcess = 0; int nodesToProcess = 0; // blocks should not be replicated or removed if safe mode is on if (isInSafeMode()) { updateReplicationCounts(workFound); return workFound; } synchronized (h...
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Compute block replication and block invalidation work that can be scheduled on data-nodes. The datanode will be informed of this work at the next heartbeat. @return number of blocks scheduled for replication or removal.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5196-L5219
118,949
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.computeInvalidateWork
int computeInvalidateWork(int nodesToProcess) { int numOfNodes = 0; ArrayList<String> keyArray = null; readLock(); try { numOfNodes = recentInvalidateSets.size(); // get an array of the keys keyArray = new ArrayList<String>(recentInvalidateSets.keySet()); } finally { readUnl...
java
int computeInvalidateWork(int nodesToProcess) { int numOfNodes = 0; ArrayList<String> keyArray = null; readLock(); try { numOfNodes = recentInvalidateSets.size(); // get an array of the keys keyArray = new ArrayList<String>(recentInvalidateSets.keySet()); } finally { readUnl...
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Schedule blocks for deletion at datanodes @param nodesToProcess number of datanodes to schedule deletion work @return total number of block for deletion
[ "Schedule", "blocks", "for", "deletion", "at", "datanodes" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5239-L5274
118,950
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.getQuotaForThisPriority
private int getQuotaForThisPriority(int totalQuota, int blocksForThisPriority, int blocksForLowerPriorities) { // reserve at most 20% for lower priority blocks int quotaForLowerPriorities = Math.min(totalQuota/5, blocksForLowerPriorities); return Math.min( blocksForThisPriority, ...
java
private int getQuotaForThisPriority(int totalQuota, int blocksForThisPriority, int blocksForLowerPriorities) { // reserve at most 20% for lower priority blocks int quotaForLowerPriorities = Math.min(totalQuota/5, blocksForLowerPriorities); return Math.min( blocksForThisPriority, ...
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Decide the number of blocks to replicate on for this priority. The heuristic is that allocate at most 20% the quota for lower priority blocks @param totalQuota max number of blocks can be replicated @param blocksForThisPriority number of needed replication blocks for this priority @param blocksForLowerPriorities numbe...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5311-L5318
118,951
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.chooseUnderReplicatedBlocks
List<List<BlockInfo>> chooseUnderReplicatedBlocks(int blocksToProcess) { // initialize data structure for the return value List<List<BlockInfo>> blocksToReplicate = new ArrayList<List<BlockInfo>>(UnderReplicatedBlocks.LEVEL); for (int i = 0; i < UnderReplicatedBlocks.LEVEL; i++) { blocksToReplic...
java
List<List<BlockInfo>> chooseUnderReplicatedBlocks(int blocksToProcess) { // initialize data structure for the return value List<List<BlockInfo>> blocksToReplicate = new ArrayList<List<BlockInfo>>(UnderReplicatedBlocks.LEVEL); for (int i = 0; i < UnderReplicatedBlocks.LEVEL; i++) { blocksToReplic...
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Get a list of block lists to be replicated The index of block lists represents the @param blocksToProcess @return Return a list of block lists to be replicated. The block list index represents its replication priority.
[ "Get", "a", "list", "of", "block", "lists", "to", "be", "replicated", "The", "index", "of", "block", "lists", "represents", "the" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5328-L5377
118,952
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.updateReplicationMetrics
private void updateReplicationMetrics(List<ReplicationWork> work) { for(ReplicationWork rw : work){ DatanodeDescriptor[] targets = rw.targets; if (targets == null) continue; for (DatanodeDescriptor target : targets) { if (clusterMap.isOnSameRack(rw.srcNode, target)) { myFSMetrics...
java
private void updateReplicationMetrics(List<ReplicationWork> work) { for(ReplicationWork rw : work){ DatanodeDescriptor[] targets = rw.targets; if (targets == null) continue; for (DatanodeDescriptor target : targets) { if (clusterMap.isOnSameRack(rw.srcNode, target)) { myFSMetrics...
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Update replication metrics @param work record for all scheduled replication
[ "Update", "replication", "metrics" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5558-L5570
118,953
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.chooseTarget
private DatanodeDescriptor[] chooseTarget(ReplicationWork work) { if (!neededReplications.contains(work.block)) { return null; } if (work.blockSize == BlockFlags.NO_ACK) { LOG.warn("Block " + work.block.getBlockId() + " of the file " + getFullPathName(work.fileINode) + " is...
java
private DatanodeDescriptor[] chooseTarget(ReplicationWork work) { if (!neededReplications.contains(work.block)) { return null; } if (work.blockSize == BlockFlags.NO_ACK) { LOG.warn("Block " + work.block.getBlockId() + " of the file " + getFullPathName(work.fileINode) + " is...
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Wrapper function for choosing targets for replication.
[ "Wrapper", "function", "for", "choosing", "targets", "for", "replication", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5588-L5607
118,954
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.isGoodReplica
private boolean isGoodReplica(DatanodeDescriptor node, Block block) { Collection<Block> excessBlocks = excessReplicateMap.get(node.getStorageID()); Collection<DatanodeDescriptor> nodesCorrupt = corruptReplicas.getNodes(block); return (nodesCorrupt == null || !nodesCorrupt.contains(node)) // not corrup...
java
private boolean isGoodReplica(DatanodeDescriptor node, Block block) { Collection<Block> excessBlocks = excessReplicateMap.get(node.getStorageID()); Collection<DatanodeDescriptor> nodesCorrupt = corruptReplicas.getNodes(block); return (nodesCorrupt == null || !nodesCorrupt.contains(node)) // not corrup...
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Decide if a replica is valid @param node datanode the block is located @param block a block @return true if a replica is valid
[ "Decide", "if", "a", "replica", "is", "valid" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5697-L5707
118,955
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.processPendingReplications
void processPendingReplications() { BlockInfo[] timedOutItems = pendingReplications.getTimedOutBlocks(); if (timedOutItems != null) { writeLock(); try { for (int i = 0; i < timedOutItems.length; i++) { NumberReplicas num = countNodes(timedOutItems[i]); neededReplications....
java
void processPendingReplications() { BlockInfo[] timedOutItems = pendingReplications.getTimedOutBlocks(); if (timedOutItems != null) { writeLock(); try { for (int i = 0; i < timedOutItems.length; i++) { NumberReplicas num = countNodes(timedOutItems[i]); neededReplications....
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If there were any replication requests that timed out, reap them and put them back into the neededReplication queue
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5771-L5791
118,956
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.clearReplicationQueues
void clearReplicationQueues() { writeLock(); try { synchronized (neededReplications) { neededReplications.clear(); } underReplicatedBlocksCount = 0; corruptReplicas.clear(); corruptReplicaBlocksCount = 0; overReplicatedBlocks.clear(); raidEncodingTasks.clear()...
java
void clearReplicationQueues() { writeLock(); try { synchronized (neededReplications) { neededReplications.clear(); } underReplicatedBlocksCount = 0; corruptReplicas.clear(); corruptReplicaBlocksCount = 0; overReplicatedBlocks.clear(); raidEncodingTasks.clear()...
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Clear replication queues. This is used by standby avatar to reclaim memory.
[ "Clear", "replication", "queues", ".", "This", "is", "used", "by", "standby", "avatar", "to", "reclaim", "memory", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5817-L5836
118,957
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.wipeDatanode
void wipeDatanode(DatanodeID nodeID) throws IOException { String key = nodeID.getStorageID(); host2DataNodeMap.remove(datanodeMap.remove(key)); if (NameNode.stateChangeLog.isDebugEnabled()) { NameNode.stateChangeLog.debug( "BLOCK* NameSystem.wipeDatanode: " + nodeID.getName() + " sto...
java
void wipeDatanode(DatanodeID nodeID) throws IOException { String key = nodeID.getStorageID(); host2DataNodeMap.remove(datanodeMap.remove(key)); if (NameNode.stateChangeLog.isDebugEnabled()) { NameNode.stateChangeLog.debug( "BLOCK* NameSystem.wipeDatanode: " + nodeID.getName() + " sto...
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Physically remove node from datanodeMap. @param nodeID node
[ "Physically", "remove", "node", "from", "datanodeMap", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5899-L5908
118,958
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.heartbeatCheck
void heartbeatCheck() { if (!getNameNode().shouldCheckHeartbeat()) { // not to check dead nodes. return; } boolean allAlive = false; while (!allAlive) { boolean foundDead = false; DatanodeID nodeID = null; // locate the first dead node. synchronized (heartbeats) { ...
java
void heartbeatCheck() { if (!getNameNode().shouldCheckHeartbeat()) { // not to check dead nodes. return; } boolean allAlive = false; while (!allAlive) { boolean foundDead = false; DatanodeID nodeID = null; // locate the first dead node. synchronized (heartbeats) { ...
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Check if there are any expired heartbeats, and if so, whether any blocks have to be re-replicated. While removing dead datanodes, make sure that only one datanode is marked dead at a time within the synchronized section. Otherwise, a cascading effect causes more datanodes to be declared dead.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L5925-L5974
118,959
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.checkBlockSize
private boolean checkBlockSize(Block block, INodeFile inode) { if (block.getNumBytes() < 0) { return false; } BlockInfo[] blocks = inode.getBlocks(); if (blocks.length == 0) { return false; } return block.getNumBytes() <= inode.getPreferredBlockSize(); }
java
private boolean checkBlockSize(Block block, INodeFile inode) { if (block.getNumBytes() < 0) { return false; } BlockInfo[] blocks = inode.getBlocks(); if (blocks.length == 0) { return false; } return block.getNumBytes() <= inode.getPreferredBlockSize(); }
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Return true if the block size number is valid
[ "Return", "true", "if", "the", "block", "size", "number", "is", "valid" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L6199-L6208
118,960
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.rejectAddStoredBlock
private void rejectAddStoredBlock(Block block, DatanodeDescriptor node, String msg, boolean ignoreInfoLogs, final boolean parallelInitialBlockReport) { if ((!isInSafe...
java
private void rejectAddStoredBlock(Block block, DatanodeDescriptor node, String msg, boolean ignoreInfoLogs, final boolean parallelInitialBlockReport) { if ((!isInSafe...
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Log a rejection of an addStoredBlock RPC, invalidate the reported block. @param block @param node @param msg error message @param ignoreInfoLogs should the logs be printed (used for fast startup) @param parallelInitialBlockReport indicates that this call is a result of parallel initial block report
[ "Log", "a", "rejection", "of", "an", "addStoredBlock", "RPC", "invalidate", "the", "reported", "block", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L6561-L6580
118,961
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.processOverReplicatedBlocksAsync
private void processOverReplicatedBlocksAsync() { // blocks should not be scheduled for deletion during safemode if (isInSafeMode()) { return; } if (delayOverreplicationMonitorTime > now()) { LOG.info("Overreplication monitor delayed for " + ((delayOverreplicationMonitorTime ...
java
private void processOverReplicatedBlocksAsync() { // blocks should not be scheduled for deletion during safemode if (isInSafeMode()) { return; } if (delayOverreplicationMonitorTime > now()) { LOG.info("Overreplication monitor delayed for " + ((delayOverreplicationMonitorTime ...
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This is called from the ReplicationMonitor to process over replicated blocks.
[ "This", "is", "called", "from", "the", "ReplicationMonitor", "to", "process", "over", "replicated", "blocks", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L6909-L6954
118,962
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.updateNeededReplicationQueue
private void updateNeededReplicationQueue(BlockInfo blockInfo, int delta, int numCurrentReplicas, int numCurrentDecommissionedReplicas, DatanodeDescriptor node, short fileReplication) { int numOldReplicas = numCurrentReplicas; int numOldDecommissionedReplicas = numCurrentDecommissionedReplicas; ...
java
private void updateNeededReplicationQueue(BlockInfo blockInfo, int delta, int numCurrentReplicas, int numCurrentDecommissionedReplicas, DatanodeDescriptor node, short fileReplication) { int numOldReplicas = numCurrentReplicas; int numOldDecommissionedReplicas = numCurrentDecommissionedReplicas; ...
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Update a block's priority queue in neededReplicaiton queues @param blockInfo blockInfo @param delta the change of number of replicas @param numCurrentReplicas current number of replicas @param numCurrentDecommissionedReplicas current number of decommissioed replicas @param node the node where the replica resides @para...
[ "Update", "a", "block", "s", "priority", "queue", "in", "neededReplicaiton", "queues" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L7554-L7572
118,963
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.blockReceived
private boolean blockReceived(Block block, String delHint, DatanodeDescriptor node) throws IOException { assert (hasWriteLock()); // decrement number of blocks scheduled to this datanode. node.decBlocksScheduled(); // get the deletion hint node ...
java
private boolean blockReceived(Block block, String delHint, DatanodeDescriptor node) throws IOException { assert (hasWriteLock()); // decrement number of blocks scheduled to this datanode. node.decBlocksScheduled(); // get the deletion hint node ...
[ "private", "boolean", "blockReceived", "(", "Block", "block", ",", "String", "delHint", ",", "DatanodeDescriptor", "node", ")", "throws", "IOException", "{", "assert", "(", "hasWriteLock", "(", ")", ")", ";", "// decrement number of blocks scheduled to this datanode.", ...
The given node is reporting that it received a certain block.
[ "The", "given", "node", "is", "reporting", "that", "it", "received", "a", "certain", "block", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L7605-L7629
118,964
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.getDatanodes
DatanodeInfo[] getDatanodes(DatanodeReportType type) { ArrayList<DatanodeDescriptor> results = getDatanodeListForReport(type); DatanodeInfo[] arr = new DatanodeInfo[results.size()]; for (int i = 0; i < arr.length; i++) { arr[i] = new DatanodeInfo(results.get(i)); } return arr; }
java
DatanodeInfo[] getDatanodes(DatanodeReportType type) { ArrayList<DatanodeDescriptor> results = getDatanodeListForReport(type); DatanodeInfo[] arr = new DatanodeInfo[results.size()]; for (int i = 0; i < arr.length; i++) { arr[i] = new DatanodeInfo(results.get(i)); } return arr; }
[ "DatanodeInfo", "[", "]", "getDatanodes", "(", "DatanodeReportType", "type", ")", "{", "ArrayList", "<", "DatanodeDescriptor", ">", "results", "=", "getDatanodeListForReport", "(", "type", ")", ";", "DatanodeInfo", "[", "]", "arr", "=", "new", "DatanodeInfo", "[...
Get all the datanodes of the given type @param type type of the datanodes @return a list of datanodes
[ "Get", "all", "the", "datanodes", "of", "the", "given", "type" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L7844-L7851
118,965
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.saveNamespace
void saveNamespace(boolean force, boolean uncompressed) throws AccessControlException, IOException { LOG.info("Saving namespace"); writeLock(); try { checkSuperuserPrivilege(); if(!force && !isInSafeMode()) { throw new IOException("Safe mode should be turned ON " + "in order to...
java
void saveNamespace(boolean force, boolean uncompressed) throws AccessControlException, IOException { LOG.info("Saving namespace"); writeLock(); try { checkSuperuserPrivilege(); if(!force && !isInSafeMode()) { throw new IOException("Safe mode should be turned ON " + "in order to...
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Save namespace image. This will save current namespace into fsimage file and empty edits file. Requires superuser privilege and safe mode. @param force if true, then the namenode need not already be in safemode. @throws AccessControlException if superuser privilege is violated. @throws IOException if
[ "Save", "namespace", "image", ".", "This", "will", "save", "current", "namespace", "into", "fsimage", "file", "and", "empty", "edits", "file", ".", "Requires", "superuser", "privilege", "and", "safe", "mode", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L7862-L7876
118,966
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.datanodeDump
private void datanodeDump(PrintWriter out) { readLock(); try { synchronized (datanodeMap) { out.println("Metasave: Number of datanodes: " + datanodeMap.size()); for (Iterator<DatanodeDescriptor> it = datanodeMap.values().iterator(); it.hasNext();) { DatanodeDescriptor node = it.n...
java
private void datanodeDump(PrintWriter out) { readLock(); try { synchronized (datanodeMap) { out.println("Metasave: Number of datanodes: " + datanodeMap.size()); for (Iterator<DatanodeDescriptor> it = datanodeMap.values().iterator(); it.hasNext();) { DatanodeDescriptor node = it.n...
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Prints information about all datanodes.
[ "Prints", "information", "about", "all", "datanodes", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L7901-L7914
118,967
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.startDecommission
void startDecommission(DatanodeDescriptor node) throws IOException { if (!node.isDecommissionInProgress() && !node.isDecommissioned()) { LOG.info("Start Decommissioning node " + node.getName() + " with " + node.numBlocks() + " blocks."); synchronized (heartbeats) { updateS...
java
void startDecommission(DatanodeDescriptor node) throws IOException { if (!node.isDecommissionInProgress() && !node.isDecommissioned()) { LOG.info("Start Decommissioning node " + node.getName() + " with " + node.numBlocks() + " blocks."); synchronized (heartbeats) { updateS...
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Start decommissioning the specified datanode.
[ "Start", "decommissioning", "the", "specified", "datanode", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L7919-L7938
118,968
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.stopDecommission
void stopDecommission(DatanodeDescriptor node) throws IOException { if ((node.isDecommissionInProgress() && ((Monitor) dnthread.getRunnable()).stopDecommission(node)) || node.isDecommissioned()) { LOG.info("Stop Decommissioning node " + node.getName()); synchronized (heartbeats) { ...
java
void stopDecommission(DatanodeDescriptor node) throws IOException { if ((node.isDecommissionInProgress() && ((Monitor) dnthread.getRunnable()).stopDecommission(node)) || node.isDecommissioned()) { LOG.info("Stop Decommissioning node " + node.getName()); synchronized (heartbeats) { ...
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Stop decommissioning the specified datanodes.
[ "Stop", "decommissioning", "the", "specified", "datanodes", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L7943-L7969
118,969
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.countLiveNodes
private int countLiveNodes(Block b, Iterator<DatanodeDescriptor> nodeIter) { int live = 0; Collection<DatanodeDescriptor> nodesCorrupt = null; if (corruptReplicas.size() != 0) { nodesCorrupt = corruptReplicas.getNodes(b); } while (nodeIter.hasNext()) { DatanodeDescriptor node = nodeIter....
java
private int countLiveNodes(Block b, Iterator<DatanodeDescriptor> nodeIter) { int live = 0; Collection<DatanodeDescriptor> nodesCorrupt = null; if (corruptReplicas.size() != 0) { nodesCorrupt = corruptReplicas.getNodes(b); } while (nodeIter.hasNext()) { DatanodeDescriptor node = nodeIter....
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Counts the number of live nodes in the given list
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8105-L8121
118,970
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.isReplicationInProgress
BlockInfo isReplicationInProgress(final DecommissioningStatus status, final DatanodeDescriptor srcNode, final BlockInfo block, boolean addToNeeded) { INode fileINode = blocksMap.getINode(block); if (fileINode == null) { return null; } NumberReplicas num = countNodes(block); int cur...
java
BlockInfo isReplicationInProgress(final DecommissioningStatus status, final DatanodeDescriptor srcNode, final BlockInfo block, boolean addToNeeded) { INode fileINode = blocksMap.getINode(block); if (fileINode == null) { return null; } NumberReplicas num = countNodes(block); int cur...
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Check if a block on srcNode has reached its replication factor or not @param status decomission status to update; null means no update @param srcNode a datanode @param block a block @param addToNeeded if the block needs to add to needReplication queue @return block if not addToNeeded and the block needes to added la...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8193-L8235
118,971
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.getHostNameForIp
private String getHostNameForIp(String ipAddr) { try { // this handles the case where the hostlist contains names // and the datanodes are using IPs InetAddress addr = InetAddress.getByName(ipAddr); return addr.getHostName(); } catch (Exception e) { // this can be safely ignored ...
java
private String getHostNameForIp(String ipAddr) { try { // this handles the case where the hostlist contains names // and the datanodes are using IPs InetAddress addr = InetAddress.getByName(ipAddr); return addr.getHostName(); } catch (Exception e) { // this can be safely ignored ...
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Best effort reverse DNS resolution. Returns null on error.
[ "Best", "effort", "reverse", "DNS", "resolution", ".", "Returns", "null", "on", "error", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8241-L8251
118,972
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.verifyNodeRegistration
private boolean verifyNodeRegistration(DatanodeRegistration nodeReg, String ipAddr) throws IOException { assert (hasWriteLock()); return inHostsList(nodeReg, ipAddr); }
java
private boolean verifyNodeRegistration(DatanodeRegistration nodeReg, String ipAddr) throws IOException { assert (hasWriteLock()); return inHostsList(nodeReg, ipAddr); }
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Checks if the node is not on the hosts list. If it is not, then it will be disallowed from registering.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8393-L8397
118,973
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.checkDecommissioning
private void checkDecommissioning(DatanodeDescriptor nodeReg, String ipAddr) throws IOException { // If the registered node is in exclude list, then decommission it if (inExcludedHostsList(nodeReg, ipAddr)) { startDecommission(nodeReg); } }
java
private void checkDecommissioning(DatanodeDescriptor nodeReg, String ipAddr) throws IOException { // If the registered node is in exclude list, then decommission it if (inExcludedHostsList(nodeReg, ipAddr)) { startDecommission(nodeReg); } }
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Decommission the node if it is in exclude list.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8402-L8408
118,974
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.getDatanode
public DatanodeDescriptor getDatanode(DatanodeID nodeID) throws IOException { UnregisteredDatanodeException e = null; DatanodeDescriptor node = datanodeMap.get(nodeID.getStorageID()); if (node == null) { return null; } if (!node.getName().equals(nodeID.getName())) { e = new UnregisteredD...
java
public DatanodeDescriptor getDatanode(DatanodeID nodeID) throws IOException { UnregisteredDatanodeException e = null; DatanodeDescriptor node = datanodeMap.get(nodeID.getStorageID()); if (node == null) { return null; } if (!node.getName().equals(nodeID.getName())) { e = new UnregisteredD...
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Get data node by storage ID. @param nodeID @return DatanodeDescriptor or null if the node is not found. @throws IOException
[ "Get", "data", "node", "by", "storage", "ID", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8417-L8430
118,975
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.incrementSafeBlockCount
void incrementSafeBlockCount(int replication, boolean skipCheck) { if (safeMode != null && safeMode.isOn()) { if ((int) replication == minReplication) { this.blocksSafe++; if(!skipCheck) { safeMode.checkMode(); } } } }
java
void incrementSafeBlockCount(int replication, boolean skipCheck) { if (safeMode != null && safeMode.isOn()) { if ((int) replication == minReplication) { this.blocksSafe++; if(!skipCheck) { safeMode.checkMode(); } } } }
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Increment number of blocks that reached minimal replication. @param replication current replication @param skipCheck if true the safemode will not be checked - used for processing initial block reports to skip the check for every block - at the end checkSafeMode() must be called
[ "Increment", "number", "of", "blocks", "that", "reached", "minimal", "replication", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8575-L8584
118,976
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.enterSafeMode
void enterSafeMode() throws IOException { writeLock(); try { // Ensure that any concurrent operations have been fully synced // before entering safe mode. This ensures that the FSImage // is entirely stable on disk as soon as we're in safe mode. getEditLog().logSyncAll(); if (!isIn...
java
void enterSafeMode() throws IOException { writeLock(); try { // Ensure that any concurrent operations have been fully synced // before entering safe mode. This ensures that the FSImage // is entirely stable on disk as soon as we're in safe mode. getEditLog().logSyncAll(); if (!isIn...
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Enter safe mode manually. @throws IOException
[ "Enter", "safe", "mode", "manually", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8686-L8705
118,977
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.leaveSafeMode
void leaveSafeMode(boolean checkForUpgrades) throws SafeModeException { writeLock(); try { if (!isInSafeMode()) { NameNode.stateChangeLog.info("STATE* Safe mode is already OFF."); return; } if (getDistributedUpgradeState()) { throw new SafeModeException("Distributed upg...
java
void leaveSafeMode(boolean checkForUpgrades) throws SafeModeException { writeLock(); try { if (!isInSafeMode()) { NameNode.stateChangeLog.info("STATE* Safe mode is already OFF."); return; } if (getDistributedUpgradeState()) { throw new SafeModeException("Distributed upg...
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Leave safe mode. @throws IOException
[ "Leave", "safe", "mode", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8712-L8728
118,978
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.initializeReplQueues
void initializeReplQueues() throws SafeModeException { writeLock(); try { if (isPopulatingReplQueues()) { NameNode.stateChangeLog.info("STATE* Safe mode is already OFF." + " Replication queues are initialized"); return; } safeMode.initializeReplicationQueues(); ...
java
void initializeReplQueues() throws SafeModeException { writeLock(); try { if (isPopulatingReplQueues()) { NameNode.stateChangeLog.info("STATE* Safe mode is already OFF." + " Replication queues are initialized"); return; } safeMode.initializeReplicationQueues(); ...
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Manually initialize replication queues when in safemode.
[ "Manually", "initialize", "replication", "queues", "when", "in", "safemode", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L8733-L8745
118,979
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.nextGenerationStampForBlock
public long nextGenerationStampForBlock(Block block, boolean fromNN) throws IOException { writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot get nextGenStamp for " + block, safeMode); } Block blockWithWildcardGenstamp = new Block(block.getBlockId()); Blo...
java
public long nextGenerationStampForBlock(Block block, boolean fromNN) throws IOException { writeLock(); try { if (isInSafeMode()) { throw new SafeModeException("Cannot get nextGenStamp for " + block, safeMode); } Block blockWithWildcardGenstamp = new Block(block.getBlockId()); Blo...
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Verifies that the block is associated with a file that has a lease. Increments, logs and then returns the stamp @param block block @param fromNN if it is for lease recovery initiated by NameNode @return a new generation stamp
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L9116-L9161
118,980
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.saveFilesUnderConstruction
void saveFilesUnderConstruction(SaveNamespaceContext ctx, DataOutputStream out) throws IOException { synchronized (leaseManager) { int pathsToSave = 0; Iterator<Lease> itrl = leaseManager.getSortedLeases().iterator(); while (itrl.hasNext()) { Lease lease = itrl.next(); for (String ...
java
void saveFilesUnderConstruction(SaveNamespaceContext ctx, DataOutputStream out) throws IOException { synchronized (leaseManager) { int pathsToSave = 0; Iterator<Lease> itrl = leaseManager.getSortedLeases().iterator(); while (itrl.hasNext()) { Lease lease = itrl.next(); for (String ...
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Serializes leases.
[ "Serializes", "leases", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L9194-L9257
118,981
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.getLiveNodes
@Override // NameNodeMXBean public String getLiveNodes() { final Map<String, Map<String,Object>> info = new HashMap<String, Map<String,Object>>(); try { final ArrayList<DatanodeDescriptor> liveNodeList = new ArrayList<DatanodeDescriptor>(); final ArrayList<DatanodeDescriptor> deadN...
java
@Override // NameNodeMXBean public String getLiveNodes() { final Map<String, Map<String,Object>> info = new HashMap<String, Map<String,Object>>(); try { final ArrayList<DatanodeDescriptor> liveNodeList = new ArrayList<DatanodeDescriptor>(); final ArrayList<DatanodeDescriptor> deadN...
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Returned information is a JSON representation of map with host name as the key and value is a map of live node attribute keys to its values
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L9782-L9805
118,982
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.getDecomNodes
@Override // NameNodeMXBean public String getDecomNodes() { final Map<String, Map<String, Object>> info = new HashMap<String, Map<String, Object>>(); try { final ArrayList<DatanodeDescriptor> decomNodeList = this.getDecommissioningNodesList(); for (DatanodeDescriptor node : decomNo...
java
@Override // NameNodeMXBean public String getDecomNodes() { final Map<String, Map<String, Object>> info = new HashMap<String, Map<String, Object>>(); try { final ArrayList<DatanodeDescriptor> decomNodeList = this.getDecommissioningNodesList(); for (DatanodeDescriptor node : decomNo...
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Returned information is a JSON representation of map with host name as the key and value is a map of decomisioning node attribute keys to its values
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L9840-L9861
118,983
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
FSNamesystem.adjustReplication
public short adjustReplication(short replication) { short r = (short) (replication < minReplication? minReplication : replication > maxReplication? maxReplication: replication); return r; }
java
public short adjustReplication(short replication) { short r = (short) (replication < minReplication? minReplication : replication > maxReplication? maxReplication: replication); return r; }
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Clamp the specified replication between the minimum and the maximum replication levels.
[ "Clamp", "the", "specified", "replication", "between", "the", "minimum", "and", "the", "maximum", "replication", "levels", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L10078-L10082
118,984
facebookarchive/hadoop-20
src/contrib/storageservice/src/java/org/apache/hadoop/hdfs/storageservice/StorageServiceConfigKeys.java
StorageServiceConfigKeys.translateToOldSchema
@Deprecated public static URI translateToOldSchema(Configuration clusterConf, String nameserviceId) { String key = FSConstants.DFS_NAMENODE_RPC_ADDRESS_KEY + "." + nameserviceId; String value = clusterConf.get(key); if (value == null) { throw new IllegalArgumentException( "Cannot translate...
java
@Deprecated public static URI translateToOldSchema(Configuration clusterConf, String nameserviceId) { String key = FSConstants.DFS_NAMENODE_RPC_ADDRESS_KEY + "." + nameserviceId; String value = clusterConf.get(key); if (value == null) { throw new IllegalArgumentException( "Cannot translate...
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Translates nameserviceId to ZK key in deprecated layout
[ "Translates", "nameserviceId", "to", "ZK", "key", "in", "deprecated", "layout" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/storageservice/src/java/org/apache/hadoop/hdfs/storageservice/StorageServiceConfigKeys.java#L57-L67
118,985
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/NetUtils.java
NetUtils.getSocketFactoryFromProperty
public static SocketFactory getSocketFactoryFromProperty( Configuration conf, String propValue) { try { Class<?> theClass = conf.getClassByName(propValue); return (SocketFactory) ReflectionUtils.newInstance(theClass, conf); } catch (ClassNotFoundException cnfe) { throw new RuntimeExcep...
java
public static SocketFactory getSocketFactoryFromProperty( Configuration conf, String propValue) { try { Class<?> theClass = conf.getClassByName(propValue); return (SocketFactory) ReflectionUtils.newInstance(theClass, conf); } catch (ClassNotFoundException cnfe) { throw new RuntimeExcep...
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Get the socket factory corresponding to the given proxy URI. If the given proxy URI corresponds to an absence of configuration parameter, returns null. If the URI is malformed raises an exception. @param propValue the property which is the class name of the SocketFactory to instantiate; assumed non null and non empty....
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/NetUtils.java#L129-L139
118,986
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/NetUtils.java
NetUtils.getServerAddress
@Deprecated public static String getServerAddress(Configuration conf, String oldBindAddressName, String oldPortName, String newBindAddressName) { String oldAddr = conf.get(oldBindAddressName); int oldPort = conf.getInt(oldPortName, 0); String newAddrPort = conf.get(newBindAddressName); ...
java
@Deprecated public static String getServerAddress(Configuration conf, String oldBindAddressName, String oldPortName, String newBindAddressName) { String oldAddr = conf.get(oldBindAddressName); int oldPort = conf.getInt(oldPortName, 0); String newAddrPort = conf.get(newBindAddressName); ...
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Handle the transition from pairs of attributes specifying a host and port to a single colon separated one. @param conf the configuration to check @param oldBindAddressName the old address attribute name @param oldPortName the old port attribute name @param newBindAddressName the new combined name @return the complete a...
[ "Handle", "the", "transition", "from", "pairs", "of", "attributes", "specifying", "a", "host", "and", "port", "to", "a", "single", "colon", "separated", "one", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/NetUtils.java#L194-L225
118,987
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/NetUtils.java
NetUtils.normalizeHostNames
public static List<String> normalizeHostNames(Collection<String> names) { List<String> resolvedIpAddresses = new ArrayList<String>(names.size()); for (String name : names) { resolvedIpAddresses.add(normalizeHostName(name)); } return resolvedIpAddresses; }
java
public static List<String> normalizeHostNames(Collection<String> names) { List<String> resolvedIpAddresses = new ArrayList<String>(names.size()); for (String name : names) { resolvedIpAddresses.add(normalizeHostName(name)); } return resolvedIpAddresses; }
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Given a collection of string representation of hosts, return a list of corresponding IP addresses in the textual representation. @param names a collection of string representations of hosts @return a list of corresponding IP addresses in the string format @see #normalizeHostName(String)
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/NetUtils.java#L482-L488
118,988
facebookarchive/hadoop-20
src/core/org/apache/hadoop/net/NetUtils.java
NetUtils.isSocketBindable
public static void isSocketBindable(InetSocketAddress addr) throws IOException { if (addr == null) { return; } ServerSocket socket = new ServerSocket(); try { socket.bind(addr); } finally { socket.close(); } }
java
public static void isSocketBindable(InetSocketAddress addr) throws IOException { if (addr == null) { return; } ServerSocket socket = new ServerSocket(); try { socket.bind(addr); } finally { socket.close(); } }
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Tries to bind to the given address. Throws an exception on failure. Used to fail earlier and verify configuration values.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/net/NetUtils.java#L598-L609
118,989
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/DirectoryStatistics.java
DirectoryStatistics.addSourceFile
public boolean addSourceFile(FileSystem fs, PolicyInfo info, FileStatus src, RaidState.Checker checker, long now, int targetReplication) throws IOException { List<FileStatus> lfs = RaidNode.listDirectoryRaidFileStatus( fs.getConf(), fs, src.getPath()); if (lfs == null)...
java
public boolean addSourceFile(FileSystem fs, PolicyInfo info, FileStatus src, RaidState.Checker checker, long now, int targetReplication) throws IOException { List<FileStatus> lfs = RaidNode.listDirectoryRaidFileStatus( fs.getConf(), fs, src.getPath()); if (lfs == null)...
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Collect the statistics of a source directory. Return true if the file should be raided but not. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/DirectoryStatistics.java#L42-L67
118,990
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.incrementAttemptUnprotected
private void incrementAttemptUnprotected() { attempt++; currentAttemptId = new TaskAttemptID(new TaskID(attemptJobId, currentAttemptId.isMap(), currentAttemptId.getTaskID().getId()), attempt); }
java
private void incrementAttemptUnprotected() { attempt++; currentAttemptId = new TaskAttemptID(new TaskID(attemptJobId, currentAttemptId.isMap(), currentAttemptId.getTaskID().getId()), attempt); }
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Increment the attempt number for launching a remote corona job tracker. Must be called only when holding the object lock.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L270-L275
118,991
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.checkAttempt
private void checkAttempt(TaskAttemptID attemptId) throws IOException { if (!attemptId.equals(currentAttemptId)) { throw new IOException("Attempt " + attemptId + " does not match current attempt " + currentAttemptId); } }
java
private void checkAttempt(TaskAttemptID attemptId) throws IOException { if (!attemptId.equals(currentAttemptId)) { throw new IOException("Attempt " + attemptId + " does not match current attempt " + currentAttemptId); } }
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Checks whether provided attempt id of remote JT matches currently set, throws if not @param attempt attempt id to check @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L283-L288
118,992
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.initializeClientUnprotected
void initializeClientUnprotected(String host, int port, String sessionId) throws IOException { if (client != null) { return; } LOG.info("Creating JT client to " + host + ":" + port); long connectTimeout = RemoteJTProxy.getRemotJTTimeout(conf); int rpcTimeout = RemoteJTProxy.getRemoteJTRPCT...
java
void initializeClientUnprotected(String host, int port, String sessionId) throws IOException { if (client != null) { return; } LOG.info("Creating JT client to " + host + ":" + port); long connectTimeout = RemoteJTProxy.getRemotJTTimeout(conf); int rpcTimeout = RemoteJTProxy.getRemoteJTRPCT...
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Create the RPC client to the remote corona job tracker. @param host The host running the remote corona job tracker. @param port The port of the remote corona job tracker. @param sessionId The session for the remote corona job tracker. @throws IOException
[ "Create", "the", "RPC", "client", "to", "the", "remote", "corona", "job", "tracker", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L297-L322
118,993
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.waitForJTStart
public void waitForJTStart(JobConf jobConf) throws IOException { int maxJTAttempts = jobConf.getInt( "mapred.coronajobtracker.remotejobtracker.attempts", 4); ResourceTracker resourceTracker = jt.getResourceTracker(); SessionDriver sessionDriver = jt.getSessionDriver(); List<ResourceGrant> exclud...
java
public void waitForJTStart(JobConf jobConf) throws IOException { int maxJTAttempts = jobConf.getInt( "mapred.coronajobtracker.remotejobtracker.attempts", 4); ResourceTracker resourceTracker = jt.getResourceTracker(); SessionDriver sessionDriver = jt.getSessionDriver(); List<ResourceGrant> exclud...
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Waits for the remote Corona JT to be ready. This involves - getting a JOBTRACKER resource from the cluster manager. - starting the remote job tracker by connecting to the corona task tracker on the machine. - waiting for the remote job tracker to report its port back to this process. @param jobConf The job configuratio...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L351-L386
118,994
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.waitForJTGrant
private ResourceGrant waitForJTGrant( ResourceTracker resourceTracker, SessionDriver sessionDriver, List<ResourceGrant> previousGrants) throws IOException, InterruptedException { LOG.info("Waiting for JT grant for " + attemptJobId); ResourceRequest req = resourceTracker.newJobTrackerReques...
java
private ResourceGrant waitForJTGrant( ResourceTracker resourceTracker, SessionDriver sessionDriver, List<ResourceGrant> previousGrants) throws IOException, InterruptedException { LOG.info("Waiting for JT grant for " + attemptJobId); ResourceRequest req = resourceTracker.newJobTrackerReques...
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Wait for a JOBTRACKER grant. @param resourceTracker The resource tracker object for getting the grant @param sessionDriver The session driver for getting the grant @param previousGrants Previous grants that could not be used successfully. @return A new JOBTRACKER grant. @throws IOException @throws InterruptedException
[ "Wait", "for", "a", "JOBTRACKER", "grant", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L397-L434
118,995
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.startRemoteJT
private boolean startRemoteJT( JobConf jobConf, ResourceGrant grant) throws InterruptedException { org.apache.hadoop.corona.InetAddress ttAddr = Utilities.appInfoToAddress(grant.appInfo); CoronaTaskTrackerProtocol coronaTT = null; try { coronaTT = jt.getTaskTrackerClient(ttAddr.getHost()...
java
private boolean startRemoteJT( JobConf jobConf, ResourceGrant grant) throws InterruptedException { org.apache.hadoop.corona.InetAddress ttAddr = Utilities.appInfoToAddress(grant.appInfo); CoronaTaskTrackerProtocol coronaTT = null; try { coronaTT = jt.getTaskTrackerClient(ttAddr.getHost()...
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Start corona job tracker on the machine provided by using the corona task tracker API. @param jobConf The job configuration. @param grant The grant that specifies the remote machine. @return A boolean indicating success. @throws InterruptedException
[ "Start", "corona", "job", "tracker", "on", "the", "machine", "provided", "by", "using", "the", "corona", "task", "tracker", "API", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L444-L504
118,996
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.close
public void close() { clientLock.writeLock().lock(); try { if (client != null) { RPC.stopProxy(client); client = null; } } finally { clientLock.writeLock().unlock(); } }
java
public void close() { clientLock.writeLock().lock(); try { if (client != null) { RPC.stopProxy(client); client = null; } } finally { clientLock.writeLock().unlock(); } }
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Stop RPC client.
[ "Stop", "RPC", "client", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L741-L751
118,997
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java
RemoteJTProxy.checkClient
private JobSubmissionProtocol checkClient() throws IOException { synchronized (this) { while (client == null) { try { if (remoteJTStatus == RemoteJTStatus.FAILURE) { throw new IOException("Remote Job Tracker is not available"); } this.wait(1000); } cat...
java
private JobSubmissionProtocol checkClient() throws IOException { synchronized (this) { while (client == null) { try { if (remoteJTStatus == RemoteJTStatus.FAILURE) { throw new IOException("Remote Job Tracker is not available"); } this.wait(1000); } cat...
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Check if the RPC client to the remote job tracker is ready, and wait if not. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/RemoteJTProxy.java#L988-L1002
118,998
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskMemoryManagerThread.java
TaskMemoryManagerThread.isProcessTreeOverLimit
boolean isProcessTreeOverLimit(String tId, long currentMemUsage, long curMemUsageOfAgedProcesses, long limit) { boolean isOverLimit = false; if (currentMemUsage > (2*limit)) { LOG.warn("Process tr...
java
boolean isProcessTreeOverLimit(String tId, long currentMemUsage, long curMemUsageOfAgedProcesses, long limit) { boolean isOverLimit = false; if (currentMemUsage > (2*limit)) { LOG.warn("Process tr...
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Check whether a task's process tree's current memory usage is over limit. When a java process exec's a program, it could momentarily account for double the size of it's memory, because the JVM does a fork()+exec() which at fork time creates a copy of the parent's memory. If the monitoring thread detects the memory use...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskMemoryManagerThread.java#L451-L470
118,999
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskMemoryManagerThread.java
TaskMemoryManagerThread.isProcessTreeOverLimit
boolean isProcessTreeOverLimit(ProcfsBasedProcessTree pTree, String tId, long limit) { long currentMemUsage = pTree.getCumulativeVmem(); // as processes begin with an age 1, we want to see if there are processes // more than 1 iteration old. long curMemUsageOfAgedPro...
java
boolean isProcessTreeOverLimit(ProcfsBasedProcessTree pTree, String tId, long limit) { long currentMemUsage = pTree.getCumulativeVmem(); // as processes begin with an age 1, we want to see if there are processes // more than 1 iteration old. long curMemUsageOfAgedPro...
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method provided just for easy testing purposes
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskMemoryManagerThread.java#L473-L481