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118,300
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.writeCommand
private void writeCommand(String cmdLine, String directory) throws IOException { PrintWriter pw = null; String commandFile = directory + File.separator + COMMAND_FILE; LOG.info("Writing commands to " + commandFile); try { FileWriter fw = new FileWriter(c...
java
private void writeCommand(String cmdLine, String directory) throws IOException { PrintWriter pw = null; String commandFile = directory + File.separator + COMMAND_FILE; LOG.info("Writing commands to " + commandFile); try { FileWriter fw = new FileWriter(c...
[ "private", "void", "writeCommand", "(", "String", "cmdLine", ",", "String", "directory", ")", "throws", "IOException", "{", "PrintWriter", "pw", "=", "null", ";", "String", "commandFile", "=", "directory", "+", "File", ".", "separator", "+", "COMMAND_FILE", ";...
a file and execute it.
[ "a", "file", "and", "execute", "it", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L452-L477
118,301
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.finishTask
private void finishTask(TaskControllerContext context, TaskCommands command) throws IOException{ if(context.task == null) { LOG.info("Context task null not killing the JVM"); return; } ShellCommandExecutor shExec = buildTaskControllerExecutor( command, context.env.conf.getUser(), ...
java
private void finishTask(TaskControllerContext context, TaskCommands command) throws IOException{ if(context.task == null) { LOG.info("Context task null not killing the JVM"); return; } ShellCommandExecutor shExec = buildTaskControllerExecutor( command, context.env.conf.getUser(), ...
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Convenience method used to sending appropriate Kill signal to the task VM @param context @param command @throws IOException
[ "Convenience", "method", "used", "to", "sending", "appropriate", "Kill", "signal", "to", "the", "task", "VM" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L570-L586
118,302
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobHistory.java
JobHistory.getHistoryFilePath
public static String getHistoryFilePath(JobID jobId) { MovedFileInfo info = jobHistoryFileMap.get(jobId); if (info == null) { return null; } return info.historyFile; }
java
public static String getHistoryFilePath(JobID jobId) { MovedFileInfo info = jobHistoryFileMap.get(jobId); if (info == null) { return null; } return info.historyFile; }
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Given the job id, return the history file path from the cache
[ "Given", "the", "job", "id", "return", "the", "history", "file", "path", "from", "the", "cache" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobHistory.java#L180-L186
118,303
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobHistory.java
JobHistory.init
public static boolean init(JobHistoryObserver jobTracker, JobConf conf, String hostname, long jobTrackerStartTime){ try { LOG_DIR = conf.get("hadoop.job.history.location" , "file:///" + new File( System.getProperty("hadoop.log.dir", "/tmp")).getAbsolutePath() + File.separa...
java
public static boolean init(JobHistoryObserver jobTracker, JobConf conf, String hostname, long jobTrackerStartTime){ try { LOG_DIR = conf.get("hadoop.job.history.location" , "file:///" + new File( System.getProperty("hadoop.log.dir", "/tmp")).getAbsolutePath() + File.separa...
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Initialize JobHistory files. @param conf Jobconf of the job tracker. @param hostname jobtracker's hostname @param jobTrackerStartTime jobtracker's start time @return true if intialized properly false otherwise
[ "Initialize", "JobHistory", "files", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobHistory.java#L428-L461
118,304
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobHistory.java
JobHistory.parseLine
private static void parseLine(String line, Listener l, boolean isEscaped) throws IOException{ // extract the record type int idx = line.indexOf(' '); String recType = line.substring(0, idx); String data = line.substring(idx+1, line.length()); Matcher matcher = pattern.matcher(data); M...
java
private static void parseLine(String line, Listener l, boolean isEscaped) throws IOException{ // extract the record type int idx = line.indexOf(' '); String recType = line.substring(0, idx); String data = line.substring(idx+1, line.length()); Matcher matcher = pattern.matcher(data); M...
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Parse a single line of history. @param line @param l @throws IOException
[ "Parse", "a", "single", "line", "of", "history", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobHistory.java#L619-L643
118,305
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobHistory.java
JobHistory.log
public static void log(PrintWriter out, RecordTypes recordType, Keys key, String value){ value = escapeString(value); out.println(recordType.name() + DELIMITER + key + "=\"" + value + "\"" + DELIMITER + LINE_DELIMITER_CHAR); }
java
public static void log(PrintWriter out, RecordTypes recordType, Keys key, String value){ value = escapeString(value); out.println(recordType.name() + DELIMITER + key + "=\"" + value + "\"" + DELIMITER + LINE_DELIMITER_CHAR); }
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Log a raw record type with keys and values. This is method is generally not used directly. @param recordType type of log event @param key key @param value value
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobHistory.java#L653-L658
118,306
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobHistory.java
JobHistory.getTaskLogsUrl
public static String getTaskLogsUrl(JobHistory.TaskAttempt attempt) { if (attempt.get(Keys.HTTP_PORT).equals("") || attempt.get(Keys.TRACKER_NAME).equals("") || attempt.get(Keys.TASK_ATTEMPT_ID).equals("")) { return null; } String taskTrackerName = JobInProgress.convertTrackerNa...
java
public static String getTaskLogsUrl(JobHistory.TaskAttempt attempt) { if (attempt.get(Keys.HTTP_PORT).equals("") || attempt.get(Keys.TRACKER_NAME).equals("") || attempt.get(Keys.TASK_ATTEMPT_ID).equals("")) { return null; } String taskTrackerName = JobInProgress.convertTrackerNa...
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Return the TaskLogsUrl of a particular TaskAttempt @param attempt @return the taskLogsUrl. null if http-port or tracker-name or task-attempt-id are unavailable.
[ "Return", "the", "TaskLogsUrl", "of", "a", "particular", "TaskAttempt" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobHistory.java#L2266-L2278
118,307
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/server/jobtracker/TaskTracker.java
TaskTracker.getAvailableSlots
public int getAvailableSlots(TaskType taskType) { int availableSlots = 0; if (taskType == TaskType.MAP) { if (LOG.isDebugEnabled()) { LOG.debug(trackerName + " getAvailSlots:" + " max(m)=" + status.getMaxMapSlots() + " occupied(m)=" + status.countOccupiedMapSlots());...
java
public int getAvailableSlots(TaskType taskType) { int availableSlots = 0; if (taskType == TaskType.MAP) { if (LOG.isDebugEnabled()) { LOG.debug(trackerName + " getAvailSlots:" + " max(m)=" + status.getMaxMapSlots() + " occupied(m)=" + status.countOccupiedMapSlots());...
[ "public", "int", "getAvailableSlots", "(", "TaskType", "taskType", ")", "{", "int", "availableSlots", "=", "0", ";", "if", "(", "taskType", "==", "TaskType", ".", "MAP", ")", "{", "if", "(", "LOG", ".", "isDebugEnabled", "(", ")", ")", "{", "LOG", ".",...
Get the number of currently available slots on this tasktracker for the given type of the task. @param taskType the {@link TaskType} to check for number of available slots @return the number of currently available slots for the given <code>taskType</code>
[ "Get", "the", "number", "of", "currently", "available", "slots", "on", "this", "tasktracker", "for", "the", "given", "type", "of", "the", "task", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/server/jobtracker/TaskTracker.java#L82-L100
118,308
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.sendIncrementalBlockReport
private void sendIncrementalBlockReport(long startTime) throws Exception { // check if there are newly received blocks Block[] receivedAndDeletedBlockArray = null; int numBlocksReceivedAndDeleted = 0; int currentPendingRequests = 0; synchronized (receivedAndDeletedBlockList) { // cons...
java
private void sendIncrementalBlockReport(long startTime) throws Exception { // check if there are newly received blocks Block[] receivedAndDeletedBlockArray = null; int numBlocksReceivedAndDeleted = 0; int currentPendingRequests = 0; synchronized (receivedAndDeletedBlockList) { // cons...
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Sends an incremental block report to the Namenode. @param startTime the time when we started processing the last heartbeat @throws Exception if there is an error in reporting blocks to the NameNode
[ "Sends", "an", "incremental", "block", "report", "to", "the", "Namenode", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L197-L266
118,309
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.shouldSendIncrementalReport
private boolean shouldSendIncrementalReport(long startTime){ boolean isPrimary = isPrimaryServiceCached() || donotDelayIncrementalBlockReports; boolean deleteIntervalTrigger = (startTime - lastDeletedReport > anode.deletedReportInterval); // by default the report should be sent if the...
java
private boolean shouldSendIncrementalReport(long startTime){ boolean isPrimary = isPrimaryServiceCached() || donotDelayIncrementalBlockReports; boolean deleteIntervalTrigger = (startTime - lastDeletedReport > anode.deletedReportInterval); // by default the report should be sent if the...
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Checks if an incremental block report should be sent. @param startTime @return true if the report should be sent
[ "Checks", "if", "an", "incremental", "block", "report", "should", "be", "sent", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L453-L477
118,310
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.processFailedBlocks
private void processFailedBlocks(Block []failed, int failedPendingRequests) { synchronized (receivedAndDeletedBlockList) { // We are adding to the front of a linked list and hence to preserve // order we should add the blocks in the reverse order. for (int i = failed.length - 1; i >= 0; i--...
java
private void processFailedBlocks(Block []failed, int failedPendingRequests) { synchronized (receivedAndDeletedBlockList) { // We are adding to the front of a linked list and hence to preserve // order we should add the blocks in the reverse order. for (int i = failed.length - 1; i >= 0; i--...
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Adds blocks of incremental block report back to the receivedAndDeletedBlockList, when handling an exception @param failed - list of blocks @param failedPendingRequests - how many of the blocks are received acks.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L492-L502
118,311
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.checkFailover
private boolean checkFailover() throws InterruptedException { boolean isPrimary = isPrimaryServiceCached(); if (!isPrimary && isPrimaryService()) { this.servicePair.setPrimaryOfferService(this); return true; } return false; }
java
private boolean checkFailover() throws InterruptedException { boolean isPrimary = isPrimaryServiceCached(); if (!isPrimary && isPrimaryService()) { this.servicePair.setPrimaryOfferService(this); return true; } return false; }
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Determines whether a failover has happened and accordingly takes the appropriate action. @return whether or not failover happened
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L553-L560
118,312
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.processCommand
private boolean processCommand(DatanodeCommand[] cmds, long processStartTime) throws InterruptedException { if (cmds != null) { // at each heartbeat the standby offer service will talk to ZK! boolean switchedFromStandbyToPrimary = checkFailover(); for (DatanodeCommand cmd : cmds) { t...
java
private boolean processCommand(DatanodeCommand[] cmds, long processStartTime) throws InterruptedException { if (cmds != null) { // at each heartbeat the standby offer service will talk to ZK! boolean switchedFromStandbyToPrimary = checkFailover(); for (DatanodeCommand cmd : cmds) { t...
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Process an array of datanode commands. This function has logic to check for failover. Any commands should be processed using this function as an entry point. @param cmds an array of datanode commands @return true if further processing may be required or false otherwise.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L570-L602
118,313
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.prepareFailover
private void prepareFailover() { LOG.info("PREPARE FAILOVER requested by : " + this.avatarnodeAddress); // we should start sending incremental block reports and block // reports normally setBackoff(false); this.donotDelayIncrementalBlockReports = true; InjectionHandler.processEvent(InjectionEven...
java
private void prepareFailover() { LOG.info("PREPARE FAILOVER requested by : " + this.avatarnodeAddress); // we should start sending incremental block reports and block // reports normally setBackoff(false); this.donotDelayIncrementalBlockReports = true; InjectionHandler.processEvent(InjectionEven...
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Take actions in preparation for failover.
[ "Take", "actions", "in", "preparation", "for", "failover", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L740-L748
118,314
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.clearPrimary
private boolean clearPrimary() throws InterruptedException { try { if (!isPrimaryServiceCached()) { InetSocketAddress addr1 = servicePair.avatarAddr1; InetSocketAddress addr2 = servicePair.avatarAddr2; if (avatarnodeAddress.equals(addr2)) { LOG.info("Restarting service for Av...
java
private boolean clearPrimary() throws InterruptedException { try { if (!isPrimaryServiceCached()) { InetSocketAddress addr1 = servicePair.avatarAddr1; InetSocketAddress addr2 = servicePair.avatarAddr2; if (avatarnodeAddress.equals(addr2)) { LOG.info("Restarting service for Av...
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This is clears up the thread heartbeating to the primary Avatar, by restarting it. This makes sure all commands from the primary have been processed by the datanode. This method is used during failover.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L764-L790
118,315
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.scheduleBlockReport
public void scheduleBlockReport(long delay) { if (delay > 0) { // send BR after random delay lastBlockReport = System.currentTimeMillis() - ( anode.blockReportInterval - R.nextInt((int)(delay))); } else { // send at next heartbeat lastBlockReport = lastHeartbeat - anode.b...
java
public void scheduleBlockReport(long delay) { if (delay > 0) { // send BR after random delay lastBlockReport = System.currentTimeMillis() - ( anode.blockReportInterval - R.nextInt((int)(delay))); } else { // send at next heartbeat lastBlockReport = lastHeartbeat - anode.b...
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This methods arranges for the data node to send the block report at the next heartbeat.
[ "This", "methods", "arranges", "for", "the", "data", "node", "to", "send", "the", "block", "report", "at", "the", "next", "heartbeat", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L795-L803
118,316
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java
OfferService.removeReceivedBlocks
void removeReceivedBlocks(Block[] removeList) { long start = AvatarDataNode.now(); synchronized(receivedAndDeletedBlockList) { ReceivedBlockInfo block = new ReceivedBlockInfo(); block.setDelHints(ReceivedBlockInfo.WILDCARD_HINT); for (Block bi : removeList) { block.set(bi.getBlockId(),...
java
void removeReceivedBlocks(Block[] removeList) { long start = AvatarDataNode.now(); synchronized(receivedAndDeletedBlockList) { ReceivedBlockInfo block = new ReceivedBlockInfo(); block.setDelHints(ReceivedBlockInfo.WILDCARD_HINT); for (Block bi : removeList) { block.set(bi.getBlockId(),...
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Remove blocks from blockReceived queues
[ "Remove", "blocks", "from", "blockReceived", "queues" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/datanode/OfferService.java#L855-L872
118,317
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/CrcConcat.java
CrcConcat.transform
static int transform(int crc, int[][] lookupTable) { int cb1 = lookupTable[0][crc & 0xff]; int cb2 = lookupTable[1][(crc >>>= 8) & 0xff]; int cb3 = lookupTable[2][(crc >>>= 8) & 0xff]; int cb4 = lookupTable[3][(crc >>>= 8) & 0xff]; return cb1 ^ cb2 ^ cb3 ^ cb4; }
java
static int transform(int crc, int[][] lookupTable) { int cb1 = lookupTable[0][crc & 0xff]; int cb2 = lookupTable[1][(crc >>>= 8) & 0xff]; int cb3 = lookupTable[2][(crc >>>= 8) & 0xff]; int cb4 = lookupTable[3][(crc >>>= 8) & 0xff]; return cb1 ^ cb2 ^ cb3 ^ cb4; }
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Helper function to transform a CRC using lookup table. Currently it is used for calculating CRC after adding bytes zeros to source byte array. The special lookup table needs to be passed in for this specific transformation @param crc @param lookupTable the first dimension is for which byte it applies to, the second di...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/CrcConcat.java#L68-L74
118,318
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/CrcConcat.java
CrcConcat.concatCrc
static public int concatCrc(int crc1, int crc2, int order) { // Calculate CRC of crc1 + order's 0 int crcForCrc1 = crc1; int orderRemained = order; // Fast transforming CRCs for adding 0 to the end of the byte array by table // look-up for (LookupTable lookupTable : lookupTables) { while ...
java
static public int concatCrc(int crc1, int crc2, int order) { // Calculate CRC of crc1 + order's 0 int crcForCrc1 = crc1; int orderRemained = order; // Fast transforming CRCs for adding 0 to the end of the byte array by table // look-up for (LookupTable lookupTable : lookupTables) { while ...
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Concatenate two CRCs @param crc1 the CRC of the first byte array @param crc2 the CRC of the second byte array @param order the length of the second byte array @return CRC of of the byte array, which is the concatenation of the two byte arrays with given crc's
[ "Concatenate", "two", "CRCs" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/CrcConcat.java#L88-L136
118,319
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/JobEndNotifier.java
JobEndNotifier.localRunnerNotification
public static void localRunnerNotification(JobConf conf, JobStatus status) { JobEndStatusInfo notification = createNotification(conf, status); if (notification != null) { while (notification.configureForRetry()) { try { int code = httpNotification(notification.getUri()); if (co...
java
public static void localRunnerNotification(JobConf conf, JobStatus status) { JobEndStatusInfo notification = createNotification(conf, status); if (notification != null) { while (notification.configureForRetry()) { try { int code = httpNotification(notification.getUri()); if (co...
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simple synchronous way
[ "simple", "synchronous", "way" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/JobEndNotifier.java#L139-L168
118,320
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/ResourceTypeProperties.java
ResourceTypeProperties.canBePreempted
public static boolean canBePreempted(ResourceType type) { // Preemption is not allowed for JOBTRACKER grants. switch (type) { case MAP: return true; case REDUCE: return true; case JOBTRACKER: return false; default: throw new RuntimeException("Undefined Preemption behavior...
java
public static boolean canBePreempted(ResourceType type) { // Preemption is not allowed for JOBTRACKER grants. switch (type) { case MAP: return true; case REDUCE: return true; case JOBTRACKER: return false; default: throw new RuntimeException("Undefined Preemption behavior...
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Tells if preemption is allowed for a resource type. @param type The type of the resource. @return Is preemption allowed for the the specified type.
[ "Tells", "if", "preemption", "is", "allowed", "for", "a", "resource", "type", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/ResourceTypeProperties.java#L38-L50
118,321
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/ResourceTypeProperties.java
ResourceTypeProperties.neededLocalityLevels
public static List<LocalityLevel> neededLocalityLevels(ResourceType type) { List<LocalityLevel> l = new ArrayList<LocalityLevel>(); switch (type) { case MAP: l.add(LocalityLevel.NODE); l.add(LocalityLevel.RACK); l.add(LocalityLevel.ANY); break; case REDUCE: l.add(LocalityLe...
java
public static List<LocalityLevel> neededLocalityLevels(ResourceType type) { List<LocalityLevel> l = new ArrayList<LocalityLevel>(); switch (type) { case MAP: l.add(LocalityLevel.NODE); l.add(LocalityLevel.RACK); l.add(LocalityLevel.ANY); break; case REDUCE: l.add(LocalityLe...
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Returns the required locality levels, in order of preference, for the resource type. @param type The type of the resource. @return The list of locality levels.
[ "Returns", "the", "required", "locality", "levels", "in", "order", "of", "preference", "for", "the", "resource", "type", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/ResourceTypeProperties.java#L58-L76
118,322
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineImageViewer/OfflineImageViewer.java
OfflineImageViewer.findImageVersion
private int findImageVersion(DataInputStream in) throws IOException { in.mark(42); // arbitrary amount, resetting immediately int version = in.readInt(); in.reset(); return version; }
java
private int findImageVersion(DataInputStream in) throws IOException { in.mark(42); // arbitrary amount, resetting immediately int version = in.readInt(); in.reset(); return version; }
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Check an fsimage datainputstream's version number. The datainput stream is returned at the same point as it was passed in; this method has no effect on the datainputstream's read pointer. @param in Datainputstream of fsimage @return Filesystem layout version of fsimage represented by stream @throws IOException If pro...
[ "Check", "an", "fsimage", "datainputstream", "s", "version", "number", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineImageViewer/OfflineImageViewer.java#L163-L170
118,323
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java
FaultTolerantBlockPlacementPolicy.setBadHostsAndRacks
public static void setBadHostsAndRacks(Set<String> racks, Set<String> hosts) { badRacks = racks; badHosts = hosts; }
java
public static void setBadHostsAndRacks(Set<String> racks, Set<String> hosts) { badRacks = racks; badHosts = hosts; }
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A function to be used by unit tests only
[ "A", "function", "to", "be", "used", "by", "unit", "tests", "only" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java#L71-L75
118,324
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java
FaultTolerantBlockPlacementPolicy.initParityConfigs
private void initParityConfigs() { Set<String> acceptedCodecIds = new HashSet<String>(); for (String s : conf.get("dfs.f4.accepted.codecs", "rs,xor").split(",")) { acceptedCodecIds.add(s); } for (Codec c : Codec.getCodecs()) { if (acceptedCodecIds.contains(c.id)) { FSNamesystem.LOG.i...
java
private void initParityConfigs() { Set<String> acceptedCodecIds = new HashSet<String>(); for (String s : conf.get("dfs.f4.accepted.codecs", "rs,xor").split(",")) { acceptedCodecIds.add(s); } for (Codec c : Codec.getCodecs()) { if (acceptedCodecIds.contains(c.id)) { FSNamesystem.LOG.i...
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This function initializes configuration for the supported parities. Currently, we support RS and XOR. Those two can have different configurations individually. Respective configurations will be used when placing the parity files. There is one exception. The stripe length is calculated based on the maximum of the strip...
[ "This", "function", "initializes", "configuration", "for", "the", "supported", "parities", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java#L106-L127
118,325
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java
FaultTolerantBlockPlacementPolicy.getRackToHostsMapForStripe
private HashMap<String, HashSet<Node>> getRackToHostsMapForStripe( String srcFileName, String parityFileName, int stripeLen, int parityLen, int stripeIndex) throws IOException { HashMap<String, HashSet<Node>> rackToHosts = new HashMap<String, HashSet<Node>>(); if (srcFileName...
java
private HashMap<String, HashSet<Node>> getRackToHostsMapForStripe( String srcFileName, String parityFileName, int stripeLen, int parityLen, int stripeIndex) throws IOException { HashMap<String, HashSet<Node>> rackToHosts = new HashMap<String, HashSet<Node>>(); if (srcFileName...
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reside and the hosts within those racks that host those blocks
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java#L416-L453
118,326
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java
FaultTolerantBlockPlacementPolicy.getGoodNode
private boolean getGoodNode( HashMap<String, HashSet<Node>> candidateNodesByRacks, boolean considerLoad, long blockSize, List<DatanodeDescriptor> results) { List<Map.Entry<String, HashSet<Node>>> sorted = new ArrayList<Map.Entry<String, HashSet<Node>>>(); for (Map.Entry<String, Has...
java
private boolean getGoodNode( HashMap<String, HashSet<Node>> candidateNodesByRacks, boolean considerLoad, long blockSize, List<DatanodeDescriptor> results) { List<Map.Entry<String, HashSet<Node>>> sorted = new ArrayList<Map.Entry<String, HashSet<Node>>>(); for (Map.Entry<String, Has...
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Helper function to choose less occupied racks first.
[ "Helper", "function", "to", "choose", "less", "occupied", "racks", "first", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java#L611-L631
118,327
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java
FaultTolerantBlockPlacementPolicy.getGoodNode
private boolean getGoodNode(Set<Node> candidateNodes, boolean considerLoad, long blockSize, List<DatanodeDescriptor> results) { List<DatanodeDescriptor> sorted = new ArrayList<DatanodeDescriptor>(); for (Node n : candidate...
java
private boolean getGoodNode(Set<Node> candidateNodes, boolean considerLoad, long blockSize, List<DatanodeDescriptor> results) { List<DatanodeDescriptor> sorted = new ArrayList<DatanodeDescriptor>(); for (Node n : candidate...
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Helper function to find a good node. Returns true if found.
[ "Helper", "function", "to", "find", "a", "good", "node", ".", "Returns", "true", "if", "found", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/hdfs/server/namenode/FaultTolerantBlockPlacementPolicy.java#L634-L669
118,328
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarStorageSetup.java
AvatarStorageSetup.checkImageStorage
private static String checkImageStorage(URI sharedImage, URI sharedEdits) { if (sharedImage.getScheme().equals(NNStorage.LOCAL_URI_SCHEME)) { // shared image is stored in file storage return ""; } else if (sharedImage.getScheme().equals( QuorumJournalManager.QJM_URI_SCHEME) && shared...
java
private static String checkImageStorage(URI sharedImage, URI sharedEdits) { if (sharedImage.getScheme().equals(NNStorage.LOCAL_URI_SCHEME)) { // shared image is stored in file storage return ""; } else if (sharedImage.getScheme().equals( QuorumJournalManager.QJM_URI_SCHEME) && shared...
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Shared image needs to be in file storage, or QJM providing that QJM also stores edits.
[ "Shared", "image", "needs", "to", "be", "in", "file", "storage", "or", "QJM", "providing", "that", "QJM", "also", "stores", "edits", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarStorageSetup.java#L123-L135
118,329
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarStorageSetup.java
AvatarStorageSetup.checkFileURIScheme
private static String checkFileURIScheme(Collection<URI> uris) { for (URI uri : uris) if (uri.getScheme().compareTo(JournalType.FILE.name().toLowerCase()) != 0) return "The specified path is not a file." + "Avatar supports file non-shared storage only... "; return ""; }
java
private static String checkFileURIScheme(Collection<URI> uris) { for (URI uri : uris) if (uri.getScheme().compareTo(JournalType.FILE.name().toLowerCase()) != 0) return "The specified path is not a file." + "Avatar supports file non-shared storage only... "; return ""; }
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For non-shared storage, we enforce file uris
[ "For", "non", "-", "shared", "storage", "we", "enforce", "file", "uris" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarStorageSetup.java#L140-L146
118,330
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FileImageManager.java
FileImageManager.getCheckpointOutputStream
@Override public OutputStream getCheckpointOutputStream(long imageTxId) throws IOException { String fileName = NNStorage.getCheckpointImageFileName(imageTxId); return new FileOutputStream(new File(sd.getCurrentDir(), fileName)); }
java
@Override public OutputStream getCheckpointOutputStream(long imageTxId) throws IOException { String fileName = NNStorage.getCheckpointImageFileName(imageTxId); return new FileOutputStream(new File(sd.getCurrentDir(), fileName)); }
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Get file output stream
[ "Get", "file", "output", "stream" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FileImageManager.java#L60-L64
118,331
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FileImageManager.java
FileImageManager.renameCheckpointInDir
private static void renameCheckpointInDir(StorageDirectory sd, long txid) throws IOException { File ckpt = NNStorage.getStorageFile(sd, NameNodeFile.IMAGE_NEW, txid); File curFile = NNStorage.getStorageFile(sd, NameNodeFile.IMAGE, txid); // renameTo fails on Windows if the destination file // alr...
java
private static void renameCheckpointInDir(StorageDirectory sd, long txid) throws IOException { File ckpt = NNStorage.getStorageFile(sd, NameNodeFile.IMAGE_NEW, txid); File curFile = NNStorage.getStorageFile(sd, NameNodeFile.IMAGE, txid); // renameTo fails on Windows if the destination file // alr...
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Rolls checkpointed image.
[ "Rolls", "checkpointed", "image", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FileImageManager.java#L84-L98
118,332
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FileImageManager.java
FileImageManager.reportError
private void reportError(StorageDirectory sd) { if (storage instanceof NNStorage) { // pass null, since we handle the disable here ((NNStorage)storage).reportErrorsOnDirectory(sd, null); } else { LOG.error("Failed direcory: " + sd.getCurrentDir()); } }
java
private void reportError(StorageDirectory sd) { if (storage instanceof NNStorage) { // pass null, since we handle the disable here ((NNStorage)storage).reportErrorsOnDirectory(sd, null); } else { LOG.error("Failed direcory: " + sd.getCurrentDir()); } }
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Reports error to underlying storage.
[ "Reports", "error", "to", "underlying", "storage", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FileImageManager.java#L119-L126
118,333
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolInfoMetrics.java
PoolInfoMetrics.getResourceMetadata
public ResourceMetadata getResourceMetadata() { if (poolInfo.getPoolName() == null || !counters.containsKey(MetricName.MIN) || !counters.containsKey(MetricName.MAX) || !counters.containsKey(MetricName.GRANTED) || !counters.containsKey(MetricName.REQUESTED)) { return null; }...
java
public ResourceMetadata getResourceMetadata() { if (poolInfo.getPoolName() == null || !counters.containsKey(MetricName.MIN) || !counters.containsKey(MetricName.MAX) || !counters.containsKey(MetricName.GRANTED) || !counters.containsKey(MetricName.REQUESTED)) { return null; }...
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Get a snapshot of the resource metadata for this pool. Used for collecting metrics. Will not collect resource metadata for PoolGroup objects or if any counters are missing. @return ResourceMetadata for this pool or null if the metrics are invalid.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolInfoMetrics.java#L126-L141
118,334
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolInfoMetrics.java
PoolInfoMetrics.updateMetricsRecord
public void updateMetricsRecord() { for (Map.Entry<MetricName, Long> entry: counters.entrySet()) { String name = (entry.getKey() + "_" + type).toLowerCase(); record.setMetric(name, entry.getValue()); } record.update(); }
java
public void updateMetricsRecord() { for (Map.Entry<MetricName, Long> entry: counters.entrySet()) { String name = (entry.getKey() + "_" + type).toLowerCase(); record.setMetric(name, entry.getValue()); } record.update(); }
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Update the metrics record associated with this object.
[ "Update", "the", "metrics", "record", "associated", "with", "this", "object", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolInfoMetrics.java#L146-L152
118,335
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/lib/Chain.java
Chain.configure
public void configure(JobConf jobConf) { String prefix = getPrefix(isMap); chainJobConf = jobConf; SerializationFactory serializationFactory = new SerializationFactory(chainJobConf); int index = jobConf.getInt(prefix + CHAIN_MAPPER_SIZE, 0); for (int i = 0; i < index; i++) { Class<? exte...
java
public void configure(JobConf jobConf) { String prefix = getPrefix(isMap); chainJobConf = jobConf; SerializationFactory serializationFactory = new SerializationFactory(chainJobConf); int index = jobConf.getInt(prefix + CHAIN_MAPPER_SIZE, 0); for (int i = 0; i < index; i++) { Class<? exte...
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Configures all the chain elements for the task. @param jobConf chain job's JobConf.
[ "Configures", "all", "the", "chain", "elements", "for", "the", "task", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/lib/Chain.java#L319-L359
118,336
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/lib/Chain.java
Chain.close
public void close() throws IOException { for (Mapper map : mappers) { map.close(); } if (reducer != null) { reducer.close(); } }
java
public void close() throws IOException { for (Mapper map : mappers) { map.close(); } if (reducer != null) { reducer.close(); } }
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Closes all the chain elements. @throws IOException thrown if any of the chain elements threw an IOException exception.
[ "Closes", "all", "the", "chain", "elements", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/lib/Chain.java#L428-L435
118,337
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NamenodeFsck.java
NamenodeFsck.fsck
public void fsck() throws IOException { InjectionHandler.processEvent(InjectionEvent.NAMENODE_FSCK_START); try { FileStatus[] files = nn.namesystem.dir.getListing(path); FsckResult res = new FsckResult(); if (!this.showFiles && !this.showBlocks && !this.showLocations && !this.sh...
java
public void fsck() throws IOException { InjectionHandler.processEvent(InjectionEvent.NAMENODE_FSCK_START); try { FileStatus[] files = nn.namesystem.dir.getListing(path); FsckResult res = new FsckResult(); if (!this.showFiles && !this.showBlocks && !this.showLocations && !this.sh...
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Check files on DFS, starting from the indicated path. @throws Exception
[ "Check", "files", "on", "DFS", "starting", "from", "the", "indicated", "path", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NamenodeFsck.java#L161-L209
118,338
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaJTState.java
CoronaJTState.getPrettyReport
public String getPrettyReport(JobID jobId) { Map<TaskAttemptID, TaskLaunch> lastLaunch = new HashMap<TaskAttemptID, CoronaStateUpdate.TaskLaunch>(); Map<TaskAttemptID, TaskStatus.State> lastKnownStatus = new HashMap<TaskAttemptID, TaskStatus.State>(); JTFailoverMetrics jtFailoverMetrics = ne...
java
public String getPrettyReport(JobID jobId) { Map<TaskAttemptID, TaskLaunch> lastLaunch = new HashMap<TaskAttemptID, CoronaStateUpdate.TaskLaunch>(); Map<TaskAttemptID, TaskStatus.State> lastKnownStatus = new HashMap<TaskAttemptID, TaskStatus.State>(); JTFailoverMetrics jtFailoverMetrics = ne...
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Creates pretty report of saved state @return string with report
[ "Creates", "pretty", "report", "of", "saved", "state" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaJTState.java#L99-L139
118,339
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/Task.java
Task.getFileSystemCounterNames
protected static String[] getFileSystemCounterNames(String uriScheme) { String scheme = uriScheme.toUpperCase(); return new String[]{scheme+"_BYTES_READ", scheme+"_BYTES_WRITTEN", scheme+"_FILES_CREATED", scheme + "_BYTES_READ_LOCAL", scheme + "_BYTES_READ...
java
protected static String[] getFileSystemCounterNames(String uriScheme) { String scheme = uriScheme.toUpperCase(); return new String[]{scheme+"_BYTES_READ", scheme+"_BYTES_WRITTEN", scheme+"_FILES_CREATED", scheme + "_BYTES_READ_LOCAL", scheme + "_BYTES_READ...
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Counters to measure the usage of the different file systems. Always return the String array with two elements. First one is the name of BYTES_READ counter and second one is of the BYTES_WRITTEN counter.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/Task.java#L142-L151
118,340
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/Task.java
Task.reportNextRecordRange
protected void reportNextRecordRange(final TaskUmbilicalProtocol umbilical, long nextRecIndex) throws IOException{ //currentRecStartIndex is the start index which has not yet been finished //and is still in task's stomach. long len = nextRecIndex - currentRecStartIndex +1; SortedRanges.Range ran...
java
protected void reportNextRecordRange(final TaskUmbilicalProtocol umbilical, long nextRecIndex) throws IOException{ //currentRecStartIndex is the start index which has not yet been finished //and is still in task's stomach. long len = nextRecIndex - currentRecStartIndex +1; SortedRanges.Range ran...
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Reports the next executing record range to TaskTracker. @param umbilical @param nextRecIndex the record index which would be fed next. @throws IOException
[ "Reports", "the", "next", "executing", "record", "range", "to", "TaskTracker", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/Task.java#L789-L799
118,341
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/Task.java
Task.updateGCcounters
void updateGCcounters(){ long gccount = 0; long gctime = 0; for(GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) { long count = gc.getCollectionCount(); if(count >= 0) { gccount += count; } long time = gc.getCollectionTime...
java
void updateGCcounters(){ long gccount = 0; long gctime = 0; for(GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) { long count = gc.getCollectionCount(); if(count >= 0) { gccount += count; } long time = gc.getCollectionTime...
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Update counters about Garbage Collection
[ "Update", "counters", "about", "Garbage", "Collection" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/Task.java#L804-L860
118,342
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/Task.java
Task.updateResourceCounters
void updateResourceCounters() { if (resourceCalculator == null) { return; } ProcResourceValues res = resourceCalculator.getProcResourceValues(); long cpuTime = res.getCumulativeCpuTime(); long pMem = res.getPhysicalMemorySize(); long vMem = res.getVirtualMemorySize(); long cpuJvmTime =...
java
void updateResourceCounters() { if (resourceCalculator == null) { return; } ProcResourceValues res = resourceCalculator.getProcResourceValues(); long cpuTime = res.getCumulativeCpuTime(); long pMem = res.getPhysicalMemorySize(); long vMem = res.getVirtualMemorySize(); long cpuJvmTime =...
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Update resource information counters
[ "Update", "resource", "information", "counters" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/Task.java#L866-L888
118,343
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/Task.java
Task.loadStaticResolutions
public static void loadStaticResolutions(Configuration conf) { String hostToResolved[] = conf.getStrings("hadoop.net.static.resolutions"); if (hostToResolved != null) { for (String str : hostToResolved) { String name = str.substring(0, str.indexOf('=')); String resolvedName = str.substring...
java
public static void loadStaticResolutions(Configuration conf) { String hostToResolved[] = conf.getStrings("hadoop.net.static.resolutions"); if (hostToResolved != null) { for (String str : hostToResolved) { String name = str.substring(0, str.indexOf('=')); String resolvedName = str.substring...
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Load the static resolutions from configuration. This is required for junit to work on testcases that simulate multiple nodes on a single physical node. @param conf The configuration.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/Task.java#L1230-L1239
118,344
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/Task.java
Task.saveStaticResolutions
public static boolean saveStaticResolutions(Configuration conf) { List<String[]> staticResolutions = NetUtils.getAllStaticResolutions(); if (staticResolutions != null && staticResolutions.size() > 0) { StringBuffer str = new StringBuffer(); for (int i = 0; i < staticResolutions.size(); i++) { ...
java
public static boolean saveStaticResolutions(Configuration conf) { List<String[]> staticResolutions = NetUtils.getAllStaticResolutions(); if (staticResolutions != null && staticResolutions.size() > 0) { StringBuffer str = new StringBuffer(); for (int i = 0; i < staticResolutions.size(); i++) { ...
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Save the static resolutions to configuration. This is required for junit to work on testcases that simulate multiple nodes on a single physical node. @param conf The configuration @return A boolean indicating if the configuration was modified.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/Task.java#L1248-L1264
118,345
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java
ResourceTracker.getResourceUsage
public ResourceUsage getResourceUsage() { int totalMapperGrants = 0; int totalReducerGrants = 0; synchronized (lockObject) { for (Map.Entry<Integer, ResourceGrant> entry : grantedResources.entrySet()) { switch(entry.getValue().getType()) { case MAP: ++totalMapperGra...
java
public ResourceUsage getResourceUsage() { int totalMapperGrants = 0; int totalReducerGrants = 0; synchronized (lockObject) { for (Map.Entry<Integer, ResourceGrant> entry : grantedResources.entrySet()) { switch(entry.getValue().getType()) { case MAP: ++totalMapperGra...
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Get a snapshot of the resource usage. @return Snapshot of resource usage
[ "Get", "a", "snapshot", "of", "the", "resource", "usage", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java#L120-L143
118,346
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java
ResourceTracker.getWantedResources
public List<ResourceRequest> getWantedResources() { List<ResourceRequest> wanted = new ArrayList<ResourceRequest>(); synchronized(lockObject) { for (Integer requestId: setDifference(requestMap.keySet(), requestedResources.keySet())) { ResourceRequest req = requestMap.get(requestId); ...
java
public List<ResourceRequest> getWantedResources() { List<ResourceRequest> wanted = new ArrayList<ResourceRequest>(); synchronized(lockObject) { for (Integer requestId: setDifference(requestMap.keySet(), requestedResources.keySet())) { ResourceRequest req = requestMap.get(requestId); ...
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Find what new requests need to be sent by finding out resources needed by tasks but not sent to Cluster Manager. @return
[ "Find", "what", "new", "requests", "need", "to", "be", "sent", "by", "finding", "out", "resources", "needed", "by", "tasks", "but", "not", "sent", "to", "Cluster", "Manager", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java#L150-L162
118,347
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java
ResourceTracker.getResourcesToRelease
public List<ResourceRequest> getResourcesToRelease() { List<ResourceRequest> release = new ArrayList<ResourceRequest>(); synchronized(lockObject) { for (Integer requestId: setDifference(requestedResources.keySet(), requestMap.keySet())) { // We update the data structures right away. This a...
java
public List<ResourceRequest> getResourcesToRelease() { List<ResourceRequest> release = new ArrayList<ResourceRequest>(); synchronized(lockObject) { for (Integer requestId: setDifference(requestedResources.keySet(), requestMap.keySet())) { // We update the data structures right away. This a...
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Go through all the requested resources and find what needs to be released. @return
[ "Go", "through", "all", "the", "requested", "resources", "and", "find", "what", "needs", "to", "be", "released", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java#L168-L183
118,348
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java
ResourceTracker.releaseResource
public void releaseResource(int resourceId) { synchronized (lockObject) { ResourceRequest req = requestedResources.get(resourceId); removeRequestUnprotected(req); } }
java
public void releaseResource(int resourceId) { synchronized (lockObject) { ResourceRequest req = requestedResources.get(resourceId); removeRequestUnprotected(req); } }
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Release the resource that was requested
[ "Release", "the", "resource", "that", "was", "requested" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java#L206-L211
118,349
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java
ResourceTracker.addNewGrants
public void addNewGrants(List<ResourceGrant> grants) { int numGranted = 0; int numAvailable = 0; synchronized(lockObject) { for (ResourceGrant grant: grants) { Integer requestId = grant.getId(); if (!requestedResources.containsKey(requestId) || !requestMap.containsKey(reque...
java
public void addNewGrants(List<ResourceGrant> grants) { int numGranted = 0; int numAvailable = 0; synchronized(lockObject) { for (ResourceGrant grant: grants) { Integer requestId = grant.getId(); if (!requestedResources.containsKey(requestId) || !requestMap.containsKey(reque...
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Obtained new grants from Cluster Manager. @param grants
[ "Obtained", "new", "grants", "from", "Cluster", "Manager", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java#L227-L251
118,350
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java
ResourceTracker.updateTrackerAddr
public void updateTrackerAddr(String trackerName, InetAddress addr) { synchronized (lockObject) { trackerAddress.put(trackerName, addr); } }
java
public void updateTrackerAddr(String trackerName, InetAddress addr) { synchronized (lockObject) { trackerAddress.put(trackerName, addr); } }
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Updates mapping between tracker names and adresses @param trackerName name of tracker @param addr address of the tracker
[ "Updates", "mapping", "between", "tracker", "names", "and", "adresses" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/ResourceTracker.java#L347-L351
118,351
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.getRemoteIp
public static InetAddress getRemoteIp() { Call call = CurCall.get(); if (call != null) { return call.connection.socket.getInetAddress(); } return null; }
java
public static InetAddress getRemoteIp() { Call call = CurCall.get(); if (call != null) { return call.connection.socket.getInetAddress(); } return null; }
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Returns the remote side ip address when invoked inside an RPC Returns null incase of an error.
[ "Returns", "the", "remote", "side", "ip", "address", "when", "invoked", "inside", "an", "RPC", "Returns", "null", "incase", "of", "an", "error", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L175-L181
118,352
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.getCurrentUGI
public static UserGroupInformation getCurrentUGI() { try { // Check original caller's UGI in case call went through proxy UserGroupInformation origUGI = OrigUGI.get(); if (origUGI != null) { return origUGI; } // If original caller's UGI is not set then we get the UGI of connect...
java
public static UserGroupInformation getCurrentUGI() { try { // Check original caller's UGI in case call went through proxy UserGroupInformation origUGI = OrigUGI.get(); if (origUGI != null) { return origUGI; } // If original caller's UGI is not set then we get the UGI of connect...
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Gives access to the subject of the current call.
[ "Gives", "access", "to", "the", "subject", "of", "the", "current", "call", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L194-L208
118,353
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.delayResponse
public static long delayResponse() { Call call = CurCall.get(); long res = 0; if (call != null) { call.delayResponse(); res = delayedRpcId.getAndIncrement(); delayedCalls.put(res, call); } return res; }
java
public static long delayResponse() { Call call = CurCall.get(); long res = 0; if (call != null) { call.delayResponse(); res = delayedRpcId.getAndIncrement(); delayedCalls.put(res, call); } return res; }
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If invoked from the RPC handling code will mark this call as delayed response. It returns the id of the delayed call. The response will only be sent once sendDelayedResponse method is called with the id returned from this one. @return id of the delayed response.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L224-L233
118,354
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.getRemoteAddress
public static String getRemoteAddress() { InetAddress addr = getRemoteIp(); return (addr == null) ? null : addr.getHostAddress(); }
java
public static String getRemoteAddress() { InetAddress addr = getRemoteIp(); return (addr == null) ? null : addr.getHostAddress(); }
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Returns remote address as a string when invoked inside an RPC. Returns null in case of an error.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L244-L247
118,355
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.bind
public static void bind(ServerSocket socket, InetSocketAddress address, int backlog) throws IOException { try { socket.bind(address, backlog); } catch (BindException e) { BindException bindException = new BindException("Problem binding to " + address ...
java
public static void bind(ServerSocket socket, InetSocketAddress address, int backlog) throws IOException { try { socket.bind(address, backlog); } catch (BindException e) { BindException bindException = new BindException("Problem binding to " + address ...
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A convenience method to bind to a given address and report better exceptions if the address is not a valid host. @param socket the socket to bind @param address the address to bind to @param backlog the number of connections allowed in the queue @throws BindException if the address can't be bound @throws UnknownHostExc...
[ "A", "convenience", "method", "to", "bind", "to", "a", "given", "address", "and", "report", "better", "exceptions", "if", "the", "address", "is", "not", "a", "valid", "host", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L295-L314
118,356
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.start
public synchronized void start() throws IOException { if (responder.isAlive()) { // The server is already running return; } responder.start(); listener.start(); handlers = new Handler[handlerCount]; for (int i = 0; i < handlerCount; i++) { handlers[i] = new Handler(i); h...
java
public synchronized void start() throws IOException { if (responder.isAlive()) { // The server is already running return; } responder.start(); listener.start(); handlers = new Handler[handlerCount]; for (int i = 0; i < handlerCount; i++) { handlers[i] = new Handler(i); h...
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Starts the service. Must be called before any calls will be handled.
[ "Starts", "the", "service", ".", "Must", "be", "called", "before", "any", "calls", "will", "be", "handled", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L1460-L1473
118,357
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.waitForHandlers
public synchronized void waitForHandlers() throws InterruptedException { if (handlers != null) { for (int i = 0; i < handlerCount; i++) { if (handlers[i] != null) { handlers[i].join(); } } } }
java
public synchronized void waitForHandlers() throws InterruptedException { if (handlers != null) { for (int i = 0; i < handlerCount; i++) { if (handlers[i] != null) { handlers[i].join(); } } } }
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Waits for all RPC handlers to exit. This ensures that no further RPC calls would be processed by this server.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L1479-L1487
118,358
facebookarchive/hadoop-20
src/core/org/apache/hadoop/ipc/Server.java
Server.call
@Deprecated public Writable call(Writable param, long receiveTime) throws IOException { return call(null, param, receiveTime); }
java
@Deprecated public Writable call(Writable param, long receiveTime) throws IOException { return call(null, param, receiveTime); }
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Called for each call. @deprecated Use {@link #call(Class, Writable, long)} instead
[ "Called", "for", "each", "call", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/ipc/Server.java#L1550-L1553
118,359
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java
JournalNode.getJournals
synchronized Collection<Journal> getJournals() { Collection<Journal> journals = new ArrayList<Journal>(); for (Journal j : journalsById.values()) { journals.add(j); } return journals; }
java
synchronized Collection<Journal> getJournals() { Collection<Journal> journals = new ArrayList<Journal>(); for (Journal j : journalsById.values()) { journals.add(j); } return journals; }
[ "synchronized", "Collection", "<", "Journal", ">", "getJournals", "(", ")", "{", "Collection", "<", "Journal", ">", "journals", "=", "new", "ArrayList", "<", "Journal", ">", "(", ")", ";", "for", "(", "Journal", "j", ":", "journalsById", ".", "values", "...
Get journals managed by this journal node.
[ "Get", "journals", "managed", "by", "this", "journal", "node", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java#L90-L96
118,360
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java
JournalNode.start
public void start() throws IOException { Preconditions.checkState(!isStarted(), "JN already running"); journalNodes = getJournalHttpAddresses(conf); // crash the JournalNode if the DFS_JOURNALNODE_HOSTS is not configured. if (journalNodes.isEmpty()) { String msg = JournalConfigKeys.DFS_JOURNAL...
java
public void start() throws IOException { Preconditions.checkState(!isStarted(), "JN already running"); journalNodes = getJournalHttpAddresses(conf); // crash the JournalNode if the DFS_JOURNALNODE_HOSTS is not configured. if (journalNodes.isEmpty()) { String msg = JournalConfigKeys.DFS_JOURNAL...
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Start listening for edits via RPC.
[ "Start", "listening", "for", "edits", "via", "RPC", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java#L158-L188
118,361
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java
JournalNode.stop
public void stop(int rc) { this.resultCode = rc; LOG.info("Stopping Journal Node: " + this); if (rpcServer != null) { rpcServer.stop(); rpcServer = null; } if (httpServer != null) { try { httpServer.stop(); } catch (IOException ioe) { LOG.warn("Unable t...
java
public void stop(int rc) { this.resultCode = rc; LOG.info("Stopping Journal Node: " + this); if (rpcServer != null) { rpcServer.stop(); rpcServer = null; } if (httpServer != null) { try { httpServer.stop(); } catch (IOException ioe) { LOG.warn("Unable t...
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Stop the daemon with the given status code @param rc the status code with which to exit (non-zero should indicate an error)
[ "Stop", "the", "daemon", "with", "the", "given", "status", "code" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java#L212-L240
118,362
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java
JournalNode.getJournalDir
private File getJournalDir(String jid) { String dir = conf.get(JournalConfigKeys.DFS_JOURNALNODE_DIR_KEY, JournalConfigKeys.DFS_JOURNALNODE_DIR_DEFAULT); Preconditions.checkArgument(jid != null && !jid.isEmpty(), "bad journal identifier: %s", jid); return new File(new File(new File(d...
java
private File getJournalDir(String jid) { String dir = conf.get(JournalConfigKeys.DFS_JOURNALNODE_DIR_KEY, JournalConfigKeys.DFS_JOURNALNODE_DIR_DEFAULT); Preconditions.checkArgument(jid != null && !jid.isEmpty(), "bad journal identifier: %s", jid); return new File(new File(new File(d...
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Return the directory inside our configured storage dir which corresponds to a given journal. @param jid the journal identifier @return the file, which may or may not exist yet
[ "Return", "the", "directory", "inside", "our", "configured", "storage", "dir", "which", "corresponds", "to", "a", "given", "journal", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java#L264-L271
118,363
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java
JournalNode.getJournalHttpAddresses
static List<InetSocketAddress> getJournalHttpAddresses(Configuration conf) { String[] hosts = JournalConfigHelper.getJournalHttpHosts(conf); List<InetSocketAddress> addrs = new ArrayList<InetSocketAddress>(); for (String host : hosts) { addrs.add(NetUtils.createSocketAddr(host)); } return addr...
java
static List<InetSocketAddress> getJournalHttpAddresses(Configuration conf) { String[] hosts = JournalConfigHelper.getJournalHttpHosts(conf); List<InetSocketAddress> addrs = new ArrayList<InetSocketAddress>(); for (String host : hosts) { addrs.add(NetUtils.createSocketAddr(host)); } return addr...
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Get the list of journal addresses to connect. Consistent with the QuorumJournalManager.getHttpAddresses.
[ "Get", "the", "list", "of", "journal", "addresses", "to", "connect", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNode.java#L333-L340
118,364
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/ByteWritable.java
ByteWritable.compareTo
public int compareTo(Object o) { int thisValue = this.value; int thatValue = ((ByteWritable)o).value; return (thisValue < thatValue ? -1 : (thisValue == thatValue ? 0 : 1)); }
java
public int compareTo(Object o) { int thisValue = this.value; int thatValue = ((ByteWritable)o).value; return (thisValue < thatValue ? -1 : (thisValue == thatValue ? 0 : 1)); }
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Compares two ByteWritables.
[ "Compares", "two", "ByteWritables", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/ByteWritable.java#L59-L63
118,365
facebookarchive/hadoop-20
src/core/org/apache/hadoop/security/SecurityUtil.java
SecurityUtil.setPolicy
public static void setPolicy(Policy policy) { if (LOG.isDebugEnabled()) { LOG.debug("Setting Hadoop security policy"); } Policy.setPolicy(policy); }
java
public static void setPolicy(Policy policy) { if (LOG.isDebugEnabled()) { LOG.debug("Setting Hadoop security policy"); } Policy.setPolicy(policy); }
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Set the global security policy for Hadoop. @param policy {@link Policy} used for authorization.
[ "Set", "the", "global", "security", "policy", "for", "Hadoop", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/security/SecurityUtil.java#L49-L54
118,366
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/pipes/PipesReducer.java
PipesReducer.reduce
public void reduce(K2 key, Iterator<V2> values, OutputCollector<K3, V3> output, Reporter reporter ) throws IOException { isOk = false; startApplication(output, reporter); downlink.reduceKey(key); while (values.hasNext()) { downlink.reduceValue(values.next...
java
public void reduce(K2 key, Iterator<V2> values, OutputCollector<K3, V3> output, Reporter reporter ) throws IOException { isOk = false; startApplication(output, reporter); downlink.reduceKey(key); while (values.hasNext()) { downlink.reduceValue(values.next...
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Process all of the keys and values. Start up the application if we haven't started it yet.
[ "Process", "all", "of", "the", "keys", "and", "values", ".", "Start", "up", "the", "application", "if", "we", "haven", "t", "started", "it", "yet", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/pipes/PipesReducer.java#L59-L74
118,367
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/pipes/PipesReducer.java
PipesReducer.close
public void close() throws IOException { // if we haven't started the application, we have nothing to do if (isOk) { OutputCollector<K3, V3> nullCollector = new OutputCollector<K3, V3>() { public void collect(K3 key, V3 value) throws IOException { // NULL ...
java
public void close() throws IOException { // if we haven't started the application, we have nothing to do if (isOk) { OutputCollector<K3, V3> nullCollector = new OutputCollector<K3, V3>() { public void collect(K3 key, V3 value) throws IOException { // NULL ...
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Handle the end of the input by closing down the application.
[ "Handle", "the", "end", "of", "the", "input", "by", "closing", "down", "the", "application", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/pipes/PipesReducer.java#L98-L124
118,368
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/MapTask.java
MapTask.updateJobWithSplit
private void updateJobWithSplit(final JobConf job, InputSplit inputSplit) { if (inputSplit instanceof FileSplit) { FileSplit fileSplit = (FileSplit) inputSplit; job.set("map.input.file", fileSplit.getPath().toString()); job.setLong("map.input.start", fileSplit.getStart()); job.setLong("map.i...
java
private void updateJobWithSplit(final JobConf job, InputSplit inputSplit) { if (inputSplit instanceof FileSplit) { FileSplit fileSplit = (FileSplit) inputSplit; job.set("map.input.file", fileSplit.getPath().toString()); job.setLong("map.input.start", fileSplit.getStart()); job.setLong("map.i...
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Update the job with details about the file split @param job the job configuration to update @param inputSplit the file split
[ "Update", "the", "job", "with", "details", "about", "the", "file", "split" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/MapTask.java#L383-L391
118,369
facebookarchive/hadoop-20
src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/CapacityTaskScheduler.java
CapacityTaskScheduler.jobAdded
synchronized void jobAdded(JobInProgress job) throws IOException { QueueSchedulingInfo qsi = queueInfoMap.get(job.getProfile().getQueueName()); // qsi shouldn't be null // update user-specific info Integer i = qsi.numJobsByUser.get(job.getProfile().getUser()); if (null == i) { i = 1; ...
java
synchronized void jobAdded(JobInProgress job) throws IOException { QueueSchedulingInfo qsi = queueInfoMap.get(job.getProfile().getQueueName()); // qsi shouldn't be null // update user-specific info Integer i = qsi.numJobsByUser.get(job.getProfile().getUser()); if (null == i) { i = 1; ...
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called when a job is added
[ "called", "when", "a", "job", "is", "added" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/CapacityTaskScheduler.java#L1405-L1429
118,370
facebookarchive/hadoop-20
src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/CapacityTaskScheduler.java
CapacityTaskScheduler.jobCompleted
synchronized void jobCompleted(JobInProgress job) { QueueSchedulingInfo qsi = queueInfoMap.get(job.getProfile().getQueueName()); // qsi shouldn't be null // update numJobsByUser LOG.debug("JOb to be removed for user " + job.getProfile().getUser()); Integer i = qsi.numJobsByUser.get(job.getPro...
java
synchronized void jobCompleted(JobInProgress job) { QueueSchedulingInfo qsi = queueInfoMap.get(job.getProfile().getQueueName()); // qsi shouldn't be null // update numJobsByUser LOG.debug("JOb to be removed for user " + job.getProfile().getUser()); Integer i = qsi.numJobsByUser.get(job.getPro...
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called when a job completes
[ "called", "when", "a", "job", "completes" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/CapacityTaskScheduler.java#L1451-L1471
118,371
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/OpenFileInfo.java
OpenFileInfo.write
public static void write(DataOutput out, OpenFileInfo elem) throws IOException { OpenFileInfo info = new OpenFileInfo(elem.filePath, elem.millisOpen); info.write(out); }
java
public static void write(DataOutput out, OpenFileInfo elem) throws IOException { OpenFileInfo info = new OpenFileInfo(elem.filePath, elem.millisOpen); info.write(out); }
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milliseconds that the file has been held open
[ "milliseconds", "that", "the", "file", "has", "been", "held", "open" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/OpenFileInfo.java#L59-L62
118,372
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/ConfigManager.java
ConfigManager.reloadConfigIfNecessary
public void reloadConfigIfNecessary() { if (whitelistFile == null) { return; } long time = System.currentTimeMillis(); if (time > lastReloadAttempt + CONFIG_RELOAD_INTERVAL) { lastReloadAttempt = time; try { File file = new File(whitelistFile); long lastModified = file....
java
public void reloadConfigIfNecessary() { if (whitelistFile == null) { return; } long time = System.currentTimeMillis(); if (time > lastReloadAttempt + CONFIG_RELOAD_INTERVAL) { lastReloadAttempt = time; try { File file = new File(whitelistFile); long lastModified = file....
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Checks to see if the namenode config file is updated on disk, If so, then read all it contents. At present, only the whitelist config is updated, but we will enahnce this to update all possible namenode configs in future.
[ "Checks", "to", "see", "if", "the", "namenode", "config", "file", "is", "updated", "on", "disk", "If", "so", "then", "read", "all", "it", "contents", ".", "At", "present", "only", "the", "whitelist", "config", "is", "updated", "but", "we", "will", "enahn...
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/ConfigManager.java#L73-L102
118,373
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/ConfigManager.java
ConfigManager.reloadWhitelist
void reloadWhitelist() throws IOException { // read the entire whitelist into memory outside the // FSNamessytem lock. // LinkedList<String> paths = new LinkedList<String>(); FileInputStream fstream = new FileInputStream(whitelistFile); DataInputStream in = new DataInputStream(fstream); Buf...
java
void reloadWhitelist() throws IOException { // read the entire whitelist into memory outside the // FSNamessytem lock. // LinkedList<String> paths = new LinkedList<String>(); FileInputStream fstream = new FileInputStream(whitelistFile); DataInputStream in = new DataInputStream(fstream); Buf...
[ "void", "reloadWhitelist", "(", ")", "throws", "IOException", "{", "// read the entire whitelist into memory outside the", "// FSNamessytem lock.", "//", "LinkedList", "<", "String", ">", "paths", "=", "new", "LinkedList", "<", "String", ">", "(", ")", ";", "FileInput...
Removes all the entries currently in neverDeletePaths and add the new ones specified
[ "Removes", "all", "the", "entries", "currently", "in", "neverDeletePaths", "and", "add", "the", "new", "ones", "specified" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/ConfigManager.java#L108-L144
118,374
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/RaidDFSUtil.java
RaidDFSUtil.constructFakeRaidFile
public static void constructFakeRaidFile(DistributedFileSystem dfs, String filePath, RaidCodec codec) throws IOException { long blockSize = 512L; byte[] buffer = new byte[(int) (codec.numDataBlocks * blockSize)]; int[] checksum = new int[codec.numDataBlocks]; OutputStream out = dfs.create(new...
java
public static void constructFakeRaidFile(DistributedFileSystem dfs, String filePath, RaidCodec codec) throws IOException { long blockSize = 512L; byte[] buffer = new byte[(int) (codec.numDataBlocks * blockSize)]; int[] checksum = new int[codec.numDataBlocks]; OutputStream out = dfs.create(new...
[ "public", "static", "void", "constructFakeRaidFile", "(", "DistributedFileSystem", "dfs", ",", "String", "filePath", ",", "RaidCodec", "codec", ")", "throws", "IOException", "{", "long", "blockSize", "=", "512L", ";", "byte", "[", "]", "buffer", "=", "new", "b...
This function create two mock source and parity files and merge them.
[ "This", "function", "create", "two", "mock", "source", "and", "parity", "files", "and", "merge", "them", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/RaidDFSUtil.java#L47-L72
118,375
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/MetricsUtil.java
MetricsUtil.getContext
public static MetricsContext getContext(String refName, String contextName) { MetricsContext metricsContext; try { metricsContext = ContextFactory.getFactory().getContext(refName, contextName); if (!metricsContext.isMonitoring()) { metricsContext.startMonitoring(); } } catc...
java
public static MetricsContext getContext(String refName, String contextName) { MetricsContext metricsContext; try { metricsContext = ContextFactory.getFactory().getContext(refName, contextName); if (!metricsContext.isMonitoring()) { metricsContext.startMonitoring(); } } catc...
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Utility method to return the named context. If the desired context cannot be created for any reason, the exception is logged, and a null context is returned.
[ "Utility", "method", "to", "return", "the", "named", "context", ".", "If", "the", "desired", "context", "cannot", "be", "created", "for", "any", "reason", "the", "exception", "is", "logged", "and", "a", "null", "context", "is", "returned", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/MetricsUtil.java#L53-L66
118,376
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/MetricsUtil.java
MetricsUtil.createRecord
public static MetricsRecord createRecord(MetricsContext context, String recordName) { MetricsRecord metricsRecord = context.createRecord(recordName); metricsRecord.setTag("hostName", getHostName()); return metricsRecord; }
java
public static MetricsRecord createRecord(MetricsContext context, String recordName) { MetricsRecord metricsRecord = context.createRecord(recordName); metricsRecord.setTag("hostName", getHostName()); return metricsRecord; }
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Utility method to create and return new metrics record instance within the given context. This record is tagged with the host name. @param context the context @param recordName name of the record @return newly created metrics record
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/MetricsUtil.java#L76-L82
118,377
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/MetricsUtil.java
MetricsUtil.getHostName
private static String getHostName() { String hostName = null; try { hostName = InetAddress.getLocalHost().getHostName(); } catch (UnknownHostException ex) { LOG.info("Unable to obtain hostName", ex); hostName = "unknown"; } return hostName; }
java
private static String getHostName() { String hostName = null; try { hostName = InetAddress.getLocalHost().getHostName(); } catch (UnknownHostException ex) { LOG.info("Unable to obtain hostName", ex); hostName = "unknown"; } return hostName; }
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Returns the host name. If the host name is unobtainable, logs the exception and returns "unknown".
[ "Returns", "the", "host", "name", ".", "If", "the", "host", "name", "is", "unobtainable", "logs", "the", "exception", "and", "returns", "unknown", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/MetricsUtil.java#L88-L98
118,378
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/mapred/DatanodeBenThread.java
DatanodeBenThread.getRunningDatanode
private String getRunningDatanode(Configuration conf) throws IOException { FileSystem fs = FileSystem.newInstance(conf); fs.mkdirs(new Path("/tmp")); Path fileName = new Path("/tmp", rtc.task_name + System.currentTimeMillis() + rb.nextInt()); if (fs.exists(fileName)) { ...
java
private String getRunningDatanode(Configuration conf) throws IOException { FileSystem fs = FileSystem.newInstance(conf); fs.mkdirs(new Path("/tmp")); Path fileName = new Path("/tmp", rtc.task_name + System.currentTimeMillis() + rb.nextInt()); if (fs.exists(fileName)) { ...
[ "private", "String", "getRunningDatanode", "(", "Configuration", "conf", ")", "throws", "IOException", "{", "FileSystem", "fs", "=", "FileSystem", ".", "newInstance", "(", "conf", ")", ";", "fs", ".", "mkdirs", "(", "new", "Path", "(", "\"/tmp\"", ")", ")", ...
Write a small file to figure out which datanode we are running
[ "Write", "a", "small", "file", "to", "figure", "out", "which", "datanode", "we", "are", "running" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/mapred/DatanodeBenThread.java#L455-L480
118,379
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/mapred/GenReaderThread.java
GenReaderThread.prepare
@Override public GenThread[] prepare(JobConf conf, Text key, Text value) throws IOException { this.rtc = new RunTimeConstants(); super.prepare(conf, key, value, rtc); Path basePath = new Path(key.toString()); LOG.info("base path is " + basePath); Path checksumPath = null; ...
java
@Override public GenThread[] prepare(JobConf conf, Text key, Text value) throws IOException { this.rtc = new RunTimeConstants(); super.prepare(conf, key, value, rtc); Path basePath = new Path(key.toString()); LOG.info("base path is " + basePath); Path checksumPath = null; ...
[ "@", "Override", "public", "GenThread", "[", "]", "prepare", "(", "JobConf", "conf", ",", "Text", "key", ",", "Text", "value", ")", "throws", "IOException", "{", "this", ".", "rtc", "=", "new", "RunTimeConstants", "(", ")", ";", "super", ".", "prepare", ...
Create a number of threads to generate read traffics @param conf @param key directory of files to read @param value checksum file locaiton @return @throws IOException
[ "Create", "a", "number", "of", "threads", "to", "generate", "read", "traffics" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/mapred/GenReaderThread.java#L80-L138
118,380
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/protocol/HdfsFileStatus.java
HdfsFileStatus.toFileStatus
public static FileStatus toFileStatus(HdfsFileStatus stat, String src) { if (stat == null) { return null; } return new FileStatus(stat.getLen(), stat.isDir(), stat.getReplication(), stat.getBlockSize(), stat.getModificationTime(), stat.getAccessTime(), stat.getPermission(), sta...
java
public static FileStatus toFileStatus(HdfsFileStatus stat, String src) { if (stat == null) { return null; } return new FileStatus(stat.getLen(), stat.isDir(), stat.getReplication(), stat.getBlockSize(), stat.getModificationTime(), stat.getAccessTime(), stat.getPermission(), sta...
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Convert an HdfsFileStatus to a FileStatus @param stat an HdfsFileStatus @param src parent path in string representation @return a FileStatus object
[ "Convert", "an", "HdfsFileStatus", "to", "a", "FileStatus" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/protocol/HdfsFileStatus.java#L112-L121
118,381
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/protocol/HdfsFileStatus.java
HdfsFileStatus.getFullName
final public String getFullName(final String parent) { if (isEmptyLocalName()) { return parent; } StringBuilder fullName = new StringBuilder(parent); if (!parent.endsWith(Path.SEPARATOR)) { fullName.append(Path.SEPARATOR); } fullName.append(getLocalName()); return fullName.t...
java
final public String getFullName(final String parent) { if (isEmptyLocalName()) { return parent; } StringBuilder fullName = new StringBuilder(parent); if (!parent.endsWith(Path.SEPARATOR)) { fullName.append(Path.SEPARATOR); } fullName.append(getLocalName()); return fullName.t...
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Get the string representation of the full path name @param parent the parent path @return the full path in string
[ "Get", "the", "string", "representation", "of", "the", "full", "path", "name" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/protocol/HdfsFileStatus.java#L277-L288
118,382
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java
JournalNodeJspHelper.getValue
private static String getValue(Map<String, String> map, String keyName) { String value = map.get(keyName); return value == null ? "-" : value; }
java
private static String getValue(Map<String, String> map, String keyName) { String value = map.get(keyName); return value == null ? "-" : value; }
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Retrieve value from the map corresponding to the given key.
[ "Retrieve", "value", "from", "the", "map", "corresponding", "to", "the", "given", "key", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java#L175-L178
118,383
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java
JournalNodeJspHelper.fetchStats
private String fetchStats(InetSocketAddress jn) throws IOException { try { return DFSUtil.getHTMLContentWithTimeout(new URI("http", null, jn.getAddress().getHostAddress(), jn .getPort(), "/journalStats", null, null).toURL(), HTTP_CONNECT_TIMEOUT, HTTP_READ_TIMEOUT); } catch (Exception e) { ...
java
private String fetchStats(InetSocketAddress jn) throws IOException { try { return DFSUtil.getHTMLContentWithTimeout(new URI("http", null, jn.getAddress().getHostAddress(), jn .getPort(), "/journalStats", null, null).toURL(), HTTP_CONNECT_TIMEOUT, HTTP_READ_TIMEOUT); } catch (Exception e) { ...
[ "private", "String", "fetchStats", "(", "InetSocketAddress", "jn", ")", "throws", "IOException", "{", "try", "{", "return", "DFSUtil", ".", "getHTMLContentWithTimeout", "(", "new", "URI", "(", "\"http\"", ",", "null", ",", "jn", ".", "getAddress", "(", ")", ...
Fetch stats from a single given journal node over http.
[ "Fetch", "stats", "from", "a", "single", "given", "journal", "node", "over", "http", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java#L183-L191
118,384
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java
JournalNodeJspHelper.getStatsMap
private static Map<String, Map<String, String>> getStatsMap(String json) throws IOException { if (json == null || json.isEmpty()) { return new HashMap<String, Map<String, String>>(); } TypeReference<Map<String, Map<String, String>>> type = new TypeReference<Map<String, Map<String, String>>>() { ...
java
private static Map<String, Map<String, String>> getStatsMap(String json) throws IOException { if (json == null || json.isEmpty()) { return new HashMap<String, Map<String, String>>(); } TypeReference<Map<String, Map<String, String>>> type = new TypeReference<Map<String, Map<String, String>>>() { ...
[ "private", "static", "Map", "<", "String", ",", "Map", "<", "String", ",", "String", ">", ">", "getStatsMap", "(", "String", "json", ")", "throws", "IOException", "{", "if", "(", "json", "==", "null", "||", "json", ".", "isEmpty", "(", ")", ")", "{",...
Get the map corresponding to the JSON string
[ "Get", "the", "map", "corresponding", "to", "the", "JSON", "string" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java#L196-L204
118,385
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java
JournalNodeJspHelper.getNodeReport
public static String getNodeReport(QJMStatus status) { StringBuilder sb = new StringBuilder(); sb.append("<table border=1 cellpadding=1 cellspacing=0 title=\"Journals\">"); sb.append("<thead><tr><td><b>Journal node</b></td><td><b>Alive</b></td></tr></thead>"); for (Entry<String, Boolean> e : status.getA...
java
public static String getNodeReport(QJMStatus status) { StringBuilder sb = new StringBuilder(); sb.append("<table border=1 cellpadding=1 cellspacing=0 title=\"Journals\">"); sb.append("<thead><tr><td><b>Journal node</b></td><td><b>Alive</b></td></tr></thead>"); for (Entry<String, Boolean> e : status.getA...
[ "public", "static", "String", "getNodeReport", "(", "QJMStatus", "status", ")", "{", "StringBuilder", "sb", "=", "new", "StringBuilder", "(", ")", ";", "sb", ".", "append", "(", "\"<table border=1 cellpadding=1 cellspacing=0 title=\\\"Journals\\\">\"", ")", ";", "sb",...
Generate health report for journal nodes
[ "Generate", "health", "report", "for", "journal", "nodes" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java#L216-L231
118,386
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java
JournalNodeJspHelper.getJournalReport
public static String getJournalReport(QJMStatus status) { StringBuilder sb = new StringBuilder(); sb.append("<table border=1 cellpadding=1 cellspacing=0 title=\"Journals\">"); sb.append("<thead><tr><td><b>JournalId</b></td><td><b>Statistics</b></td></tr></thead>"); for (String journalId : status.getJour...
java
public static String getJournalReport(QJMStatus status) { StringBuilder sb = new StringBuilder(); sb.append("<table border=1 cellpadding=1 cellspacing=0 title=\"Journals\">"); sb.append("<thead><tr><td><b>JournalId</b></td><td><b>Statistics</b></td></tr></thead>"); for (String journalId : status.getJour...
[ "public", "static", "String", "getJournalReport", "(", "QJMStatus", "status", ")", "{", "StringBuilder", "sb", "=", "new", "StringBuilder", "(", ")", ";", "sb", ".", "append", "(", "\"<table border=1 cellpadding=1 cellspacing=0 title=\\\"Journals\\\">\"", ")", ";", "s...
Generate report for all journals and all journal nodes
[ "Generate", "report", "for", "all", "journals", "and", "all", "journal", "nodes" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java#L236-L247
118,387
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java
JournalNodeJspHelper.getHTMLTableForASingleJournal
public static void getHTMLTableForASingleJournal(QJMStatus status, String journalName, StringBuilder sb) { List<StatsDescriptor> stats = status.stats.get(journalName); if (stats == null) { return; } Set<String> statsNames = status.statNames; // header sb.append("<table border=1 alig...
java
public static void getHTMLTableForASingleJournal(QJMStatus status, String journalName, StringBuilder sb) { List<StatsDescriptor> stats = status.stats.get(journalName); if (stats == null) { return; } Set<String> statsNames = status.statNames; // header sb.append("<table border=1 alig...
[ "public", "static", "void", "getHTMLTableForASingleJournal", "(", "QJMStatus", "status", ",", "String", "journalName", ",", "StringBuilder", "sb", ")", "{", "List", "<", "StatsDescriptor", ">", "stats", "=", "status", ".", "stats", ".", "get", "(", "journalName"...
Render html table for a single journal.
[ "Render", "html", "table", "for", "a", "single", "journal", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java#L252-L281
118,388
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java
JournalNodeJspHelper.getHostAddress
private static String getHostAddress(InetSocketAddress addr) { String hostToAppend = ""; if (addr.isUnresolved()) { hostToAppend = addr.getHostName(); } else { hostToAppend = addr.getAddress().getHostAddress(); } return hostToAppend; }
java
private static String getHostAddress(InetSocketAddress addr) { String hostToAppend = ""; if (addr.isUnresolved()) { hostToAppend = addr.getHostName(); } else { hostToAppend = addr.getAddress().getHostAddress(); } return hostToAppend; }
[ "private", "static", "String", "getHostAddress", "(", "InetSocketAddress", "addr", ")", "{", "String", "hostToAppend", "=", "\"\"", ";", "if", "(", "addr", ".", "isUnresolved", "(", ")", ")", "{", "hostToAppend", "=", "addr", ".", "getHostName", "(", ")", ...
Returns the address of the host minimizing DNS lookups. @param addr @return
[ "Returns", "the", "address", "of", "the", "host", "minimizing", "DNS", "lookups", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/JournalNodeJspHelper.java#L288-L296
118,389
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.getPool
public synchronized Pool getPool(String name) { Pool pool = pools.get(name); if (pool == null) { boolean isConfiguredPool = poolNamesInAllocFile.contains(name); pool = new Pool(name, isConfiguredPool); pools.put(name, pool); } return pool; }
java
public synchronized Pool getPool(String name) { Pool pool = pools.get(name); if (pool == null) { boolean isConfiguredPool = poolNamesInAllocFile.contains(name); pool = new Pool(name, isConfiguredPool); pools.put(name, pool); } return pool; }
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Get a pool by name, creating it if necessary. @name Name of the pool to get. (Should be lower-cased already)
[ "Get", "a", "pool", "by", "name", "creating", "it", "if", "necessary", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L152-L160
118,390
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.reloadAllocsIfNecessary
public boolean reloadAllocsIfNecessary() { if (allocFile == null) { // A warning has been logged when allocFile is null. // We should just return here. return false; } long time = System.currentTimeMillis(); boolean reloaded = false; if (time > lastReloadAttempt + ALLOC_RELOAD_INTE...
java
public boolean reloadAllocsIfNecessary() { if (allocFile == null) { // A warning has been logged when allocFile is null. // We should just return here. return false; } long time = System.currentTimeMillis(); boolean reloaded = false; if (time > lastReloadAttempt + ALLOC_RELOAD_INTE...
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Reload allocations file if it hasn't been loaded in a while return true if reloaded
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L166-L200
118,391
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.getMinSlots
public int getMinSlots(String pool, TaskType taskType) { Map<String, Integer> allocationMap = (taskType == TaskType.MAP ? mapAllocs : reduceAllocs); Integer alloc = allocationMap.get(pool); return (alloc == null ? 0 : alloc); }
java
public int getMinSlots(String pool, TaskType taskType) { Map<String, Integer> allocationMap = (taskType == TaskType.MAP ? mapAllocs : reduceAllocs); Integer alloc = allocationMap.get(pool); return (alloc == null ? 0 : alloc); }
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Get the allocation for a particular pool
[ "Get", "the", "allocation", "for", "a", "particular", "pool" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L422-L427
118,392
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.addJob
public synchronized void addJob(JobInProgress job) { String poolName = getPoolName(job); LOG.info("Adding job " + job.getJobID() + " to pool " + poolName + ", originally from pool " + job.getJobConf().get(EXPLICIT_POOL_PROPERTY)); getPool(poolName).addJob(job); }
java
public synchronized void addJob(JobInProgress job) { String poolName = getPoolName(job); LOG.info("Adding job " + job.getJobID() + " to pool " + poolName + ", originally from pool " + job.getJobConf().get(EXPLICIT_POOL_PROPERTY)); getPool(poolName).addJob(job); }
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Add a job in the appropriate pool
[ "Add", "a", "job", "in", "the", "appropriate", "pool" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L432-L438
118,393
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.removeJob
public synchronized void removeJob(JobInProgress job) { if (getPool(getPoolName(job)).removeJob(job)) { return; } // Job wasn't found in this pool. Search for the job in all the pools // (the pool may have been created after the job started). for (Pool pool : getPools()) { if (pool.rem...
java
public synchronized void removeJob(JobInProgress job) { if (getPool(getPoolName(job)).removeJob(job)) { return; } // Job wasn't found in this pool. Search for the job in all the pools // (the pool may have been created after the job started). for (Pool pool : getPools()) { if (pool.rem...
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Remove a job
[ "Remove", "a", "job" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L443-L461
118,394
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.setPool
public synchronized void setPool(JobInProgress job, String pool) { removeJob(job); job.getJobConf().set(EXPLICIT_POOL_PROPERTY, pool); addJob(job); }
java
public synchronized void setPool(JobInProgress job, String pool) { removeJob(job); job.getJobConf().set(EXPLICIT_POOL_PROPERTY, pool); addJob(job); }
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Change the pool of a particular job
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L466-L470
118,395
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.getPoolName
public synchronized String getPoolName(JobInProgress job) { String name = getExplicitPoolName(job).trim(); String redirect = poolRedirectMap.get(name); if (redirect == null) { return name; } else { return redirect; } }
java
public synchronized String getPoolName(JobInProgress job) { String name = getExplicitPoolName(job).trim(); String redirect = poolRedirectMap.get(name); if (redirect == null) { return name; } else { return redirect; } }
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Get the pool name for a JobInProgress from its configuration. This uses the "project" property in the jobconf by default, or the property set with "mapred.fairscheduler.poolnameproperty".
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L484-L493
118,396
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.checkValidPoolProperty
public synchronized void checkValidPoolProperty(JobInProgress job) throws InvalidJobConfException { if (!strictPoolsMode) { return; } JobConf conf = job.getJobConf(); // Pool name needs to be lower cased. String poolName = conf.get(EXPLICIT_POOL_PROPERTY); if (poolName == null) { ...
java
public synchronized void checkValidPoolProperty(JobInProgress job) throws InvalidJobConfException { if (!strictPoolsMode) { return; } JobConf conf = job.getJobConf(); // Pool name needs to be lower cased. String poolName = conf.get(EXPLICIT_POOL_PROPERTY); if (poolName == null) { ...
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A quick check for to ensure that if the pool name is set and we are in a strict pools mode, then the pool must exist to run this job. @param job Job to check @throws InvalidJobConfException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L502-L526
118,397
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.getPoolNames
public synchronized Collection<String> getPoolNames() { List<String> list = new ArrayList<String>(); for (Pool pool: getPools()) { list.add(pool.getName()); } Collections.sort(list); return list; }
java
public synchronized Collection<String> getPoolNames() { List<String> list = new ArrayList<String>(); for (Pool pool: getPools()) { list.add(pool.getName()); } Collections.sort(list); return list; }
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Get all pool names that have been seen either in the allocation file or in a MapReduce job.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L610-L617
118,398
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.canBePreempted
public boolean canBePreempted(String pool) { Boolean result = canBePreempted.get(pool); return result == null ? true : result; // Default is true }
java
public boolean canBePreempted(String pool) { Boolean result = canBePreempted.get(pool); return result == null ? true : result; // Default is true }
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Can we take slots from this pool when preempting tasks?
[ "Can", "we", "take", "slots", "from", "this", "pool", "when", "preempting", "tasks?" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L654-L657
118,399
facebookarchive/hadoop-20
src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java
PoolManager.fifoWeight
public boolean fifoWeight(String pool) { Boolean result = poolFifoWeight.get(pool); return result == null ? false : result; // Default is false }
java
public boolean fifoWeight(String pool) { Boolean result = poolFifoWeight.get(pool); return result == null ? false : result; // Default is false }
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Do we boost the weight for the older jobs?
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/PoolManager.java#L662-L665