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119,300
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.syncLog
File syncLog(long stamp, final long startTxId, final URL url, String name, File tmpFile) throws IOException { final File[] localPaths = new File[] { tmpFile }; // TODO add security if needed. LOG.info("Synchronizing log " + name + " from " + url); boolean success = false; try { Transfer...
java
File syncLog(long stamp, final long startTxId, final URL url, String name, File tmpFile) throws IOException { final File[] localPaths = new File[] { tmpFile }; // TODO add security if needed. LOG.info("Synchronizing log " + name + " from " + url); boolean success = false; try { Transfer...
[ "File", "syncLog", "(", "long", "stamp", ",", "final", "long", "startTxId", ",", "final", "URL", "url", ",", "String", "name", ",", "File", "tmpFile", ")", "throws", "IOException", "{", "final", "File", "[", "]", "localPaths", "=", "new", "File", "[", ...
Synchronize a log segment from another JournalNode. The log is downloaded from the provided URL into a temporary location on disk
[ "Synchronize", "a", "log", "segment", "from", "another", "JournalNode", ".", "The", "log", "is", "downloaded", "from", "the", "provided", "URL", "into", "a", "temporary", "location", "on", "disk" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L1178-L1200
119,301
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.completeHalfDoneAcceptRecovery
private void completeHalfDoneAcceptRecovery( PersistedRecoveryPaxosData paxosData) throws IOException { if (paxosData == null) { return; } long segmentId = paxosData.getSegmentState().getStartTxId(); long epoch = paxosData.getAcceptedInEpoch(); File tmp = journalStorage.getSyncLogT...
java
private void completeHalfDoneAcceptRecovery( PersistedRecoveryPaxosData paxosData) throws IOException { if (paxosData == null) { return; } long segmentId = paxosData.getSegmentState().getStartTxId(); long epoch = paxosData.getAcceptedInEpoch(); File tmp = journalStorage.getSyncLogT...
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In the case the node crashes in between downloading a log segment and persisting the associated paxos recovery data, the log segment will be left in its temporary location on disk. Given the paxos data, we can check if this was indeed the case, and "roll forward" the atomic operation. See the inline comments...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L1217-L1234
119,302
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.getPersistedPaxosData
private PersistedRecoveryPaxosData getPersistedPaxosData(long segmentTxId) throws IOException { File f = journalStorage.getPaxosFile(segmentTxId); if (!f.exists()) { // Default instance has no fields filled in (they're optional) return null; } InputStream in = new FileInputStream(...
java
private PersistedRecoveryPaxosData getPersistedPaxosData(long segmentTxId) throws IOException { File f = journalStorage.getPaxosFile(segmentTxId); if (!f.exists()) { // Default instance has no fields filled in (they're optional) return null; } InputStream in = new FileInputStream(...
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Retrieve the persisted data for recovering the given segment from disk.
[ "Retrieve", "the", "persisted", "data", "for", "recovering", "the", "given", "segment", "from", "disk", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L1239-L1258
119,303
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.persistPaxosData
private void persistPaxosData(long segmentTxId, PersistedRecoveryPaxosData newData) throws IOException { File f = journalStorage.getPaxosFile(segmentTxId); boolean success = false; AtomicFileOutputStream fos = new AtomicFileOutputStream(f); try { newData.writeDelimitedTo(fos); fos.writ...
java
private void persistPaxosData(long segmentTxId, PersistedRecoveryPaxosData newData) throws IOException { File f = journalStorage.getPaxosFile(segmentTxId); boolean success = false; AtomicFileOutputStream fos = new AtomicFileOutputStream(f); try { newData.writeDelimitedTo(fos); fos.writ...
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Persist data for recovering the given segment from disk.
[ "Persist", "data", "for", "recovering", "the", "given", "segment", "from", "disk", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L1263-L1288
119,304
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java
Journal.saveDigestAndRenameCheckpointImage
public void saveDigestAndRenameCheckpointImage(long txid, MD5Hash digest) throws IOException { MD5Hash storedDigest = checkpointImageDigests.get(txid); if (storedDigest == null || !storedDigest.equals(digest)) { throw new IOException("Digest of data written: " + storedDigest + " does not m...
java
public void saveDigestAndRenameCheckpointImage(long txid, MD5Hash digest) throws IOException { MD5Hash storedDigest = checkpointImageDigests.get(txid); if (storedDigest == null || !storedDigest.equals(digest)) { throw new IOException("Digest of data written: " + storedDigest + " does not m...
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Roll the image.
[ "Roll", "the", "image", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/qjournal/server/Journal.java#L1293-L1303
119,305
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/GetImageServlet.java
GetImageServlet.getThrottler
public static final DataTransferThrottler getThrottler(Configuration conf, boolean disableThrottler) { if (disableThrottler) { return null; } long transferBandwidth = conf.getLong(HdfsConstants.DFS_IMAGE_TRANSFER_RATE_KEY, HdfsConstants.DFS_IMAGE_TRANSFER_RATE_DEFAULT); Dat...
java
public static final DataTransferThrottler getThrottler(Configuration conf, boolean disableThrottler) { if (disableThrottler) { return null; } long transferBandwidth = conf.getLong(HdfsConstants.DFS_IMAGE_TRANSFER_RATE_KEY, HdfsConstants.DFS_IMAGE_TRANSFER_RATE_DEFAULT); Dat...
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Construct a throttler from conf @param conf configuration @return a data transfer throttler
[ "Construct", "a", "throttler", "from", "conf" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/GetImageServlet.java#L149-L162
119,306
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/GetImageServlet.java
GetImageServlet.setVerificationHeaders
public static void setVerificationHeaders(HttpServletResponse response, File file) throws IOException { response.setHeader(TransferFsImage.CONTENT_LENGTH, String.valueOf(file.length())); MD5Hash hash = MD5FileUtils.readStoredMd5ForFile(file); if (hash != null) { response.setHeader(TransferFs...
java
public static void setVerificationHeaders(HttpServletResponse response, File file) throws IOException { response.setHeader(TransferFsImage.CONTENT_LENGTH, String.valueOf(file.length())); MD5Hash hash = MD5FileUtils.readStoredMd5ForFile(file); if (hash != null) { response.setHeader(TransferFs...
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Set headers for content length, and, if available, md5. @throws IOException
[ "Set", "headers", "for", "content", "length", "and", "if", "available", "md5", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/GetImageServlet.java#L168-L176
119,307
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/InMemoryFileSystem.java
InMemoryFileSystem.reserveSpaceWithCheckSum
public boolean reserveSpaceWithCheckSum(Path f, long size) { RawInMemoryFileSystem mfs = (RawInMemoryFileSystem)getRawFileSystem(); synchronized(mfs) { boolean b = mfs.reserveSpace(f, size); if (b) { long checksumSize = getChecksumFileLength(f, size); b = mfs.reserveSpace(getChecksum...
java
public boolean reserveSpaceWithCheckSum(Path f, long size) { RawInMemoryFileSystem mfs = (RawInMemoryFileSystem)getRawFileSystem(); synchronized(mfs) { boolean b = mfs.reserveSpace(f, size); if (b) { long checksumSize = getChecksumFileLength(f, size); b = mfs.reserveSpace(getChecksum...
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Register a file with its size. This will also register a checksum for the file that the user is trying to create. This is required since none of the FileSystem APIs accept the size of the file as argument. But since it is required for us to apriori know the size of the file we are going to create, the user must call th...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/InMemoryFileSystem.java#L416-L429
119,308
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/DnsMonitorSecurityManager.java
DnsMonitorSecurityManager.setTheManager
public static void setTheManager() { if ("true".equalsIgnoreCase(System.getProperty(ACTIVATE_FLAG))) { if (!(System.getSecurityManager() instanceof DnsMonitorSecurityManager)) { System.setSecurityManager(theManager); } } }
java
public static void setTheManager() { if ("true".equalsIgnoreCase(System.getProperty(ACTIVATE_FLAG))) { if (!(System.getSecurityManager() instanceof DnsMonitorSecurityManager)) { System.setSecurityManager(theManager); } } }
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Update's the system's security manager to an instance of this class if system property dns_call_stack_logging is set to true.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/DnsMonitorSecurityManager.java#L45-L51
119,309
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java
AvatarNodeZkUtil.checkZooKeeperBeforeFailover
static ZookeeperTxId checkZooKeeperBeforeFailover(Configuration startupConf, Configuration confg, boolean noverification) throws IOException { AvatarZooKeeperClient zk = null; String fsname = startupConf.get(NameNode.DFS_NAMENODE_RPC_ADDRESS_KEY); int maxTries = startupConf.getInt("dfs.avatarnode...
java
static ZookeeperTxId checkZooKeeperBeforeFailover(Configuration startupConf, Configuration confg, boolean noverification) throws IOException { AvatarZooKeeperClient zk = null; String fsname = startupConf.get(NameNode.DFS_NAMENODE_RPC_ADDRESS_KEY); int maxTries = startupConf.getInt("dfs.avatarnode...
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Verifies whether we are in a consistent state before we perform a failover @param startupConf the startup configuration @param confg the current configuration @param noverification whether or not to skip some zookeeper based verification @return the session id and last transaction id information from zookeeper @throws...
[ "Verifies", "whether", "we", "are", "in", "a", "consistent", "state", "before", "we", "perform", "a", "failover" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java#L54-L98
119,310
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java
AvatarNodeZkUtil.writeToZooKeeperAfterFailover
static long writeToZooKeeperAfterFailover(Configuration startupConf, Configuration confg) throws IOException { AvatarZooKeeperClient zk = null; // Register client port address. String address = startupConf.get(NameNode.DFS_NAMENODE_RPC_ADDRESS_KEY); String realAddress = confg.get(NameNode.DFS_NAME...
java
static long writeToZooKeeperAfterFailover(Configuration startupConf, Configuration confg) throws IOException { AvatarZooKeeperClient zk = null; // Register client port address. String address = startupConf.get(NameNode.DFS_NAMENODE_RPC_ADDRESS_KEY); String realAddress = confg.get(NameNode.DFS_NAME...
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Performs some operations after failover such as writing a new session id and registering to zookeeper as the new primary. @param startupConf the startup configuration @param confg the current configuration @return the session id for the new node after failover @throws IOException
[ "Performs", "some", "operations", "after", "failover", "such", "as", "writing", "a", "new", "session", "id", "and", "registering", "to", "zookeeper", "as", "the", "new", "primary", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java#L111-L138
119,311
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java
AvatarNodeZkUtil.writeLastTxidToZookeeper
static void writeLastTxidToZookeeper(long lastTxid, long totalBlocks, long totalInodes, long ssid, Configuration startupConf, Configuration confg) throws IOException { AvatarZooKeeperClient zk = null; LOG.info("Writing lastTxId: " + lastTxid + ", total blocks: " + totalBlocks + ", total inod...
java
static void writeLastTxidToZookeeper(long lastTxid, long totalBlocks, long totalInodes, long ssid, Configuration startupConf, Configuration confg) throws IOException { AvatarZooKeeperClient zk = null; LOG.info("Writing lastTxId: " + lastTxid + ", total blocks: " + totalBlocks + ", total inod...
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Writes the last transaction id of the primary avatarnode to zookeeper.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java#L143-L170
119,312
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java
AvatarNodeZkUtil.getPrimaryRegistration
static String getPrimaryRegistration(Configuration startupConf, Configuration conf, String fsname) throws IOException { AvatarZooKeeperClient zk = null; int maxTries = startupConf.getInt("dfs.avatarnode.zk.retries", 3); for (int i = 0; i < maxTries; i++) { try { zk = new AvatarZooKeeperC...
java
static String getPrimaryRegistration(Configuration startupConf, Configuration conf, String fsname) throws IOException { AvatarZooKeeperClient zk = null; int maxTries = startupConf.getInt("dfs.avatarnode.zk.retries", 3); for (int i = 0; i < maxTries; i++) { try { zk = new AvatarZooKeeperC...
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Obtain the registration of the primary from zk.
[ "Obtain", "the", "registration", "of", "the", "primary", "from", "zk", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java#L217-L235
119,313
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java
AvatarNodeZkUtil.registerClientProtocolAddress
private static boolean registerClientProtocolAddress(AvatarZooKeeperClient zk, Configuration originalConf, Configuration conf, boolean toOverwrite) throws UnsupportedEncodingException, IOException { LOG.info("Updating Client Address information in ZooKeeper"); InetSocketAddress addr = NameNode.getCl...
java
private static boolean registerClientProtocolAddress(AvatarZooKeeperClient zk, Configuration originalConf, Configuration conf, boolean toOverwrite) throws UnsupportedEncodingException, IOException { LOG.info("Updating Client Address information in ZooKeeper"); InetSocketAddress addr = NameNode.getCl...
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Registers namenode's address in zookeeper
[ "Registers", "namenode", "s", "address", "in", "zookeeper" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java#L300-L323
119,314
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java
AvatarNodeZkUtil.registerDnProtocolAddress
private static void registerDnProtocolAddress(AvatarZooKeeperClient zk, Configuration originalConf, Configuration conf, boolean toOverwrite) throws UnsupportedEncodingException, IOException { LOG.info("Updating Service Address information in ZooKeeper"); registerSocketAddress(zk, originalCon...
java
private static void registerDnProtocolAddress(AvatarZooKeeperClient zk, Configuration originalConf, Configuration conf, boolean toOverwrite) throws UnsupportedEncodingException, IOException { LOG.info("Updating Service Address information in ZooKeeper"); registerSocketAddress(zk, originalCon...
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Registers the datanode protocol address in the zookeeper
[ "Registers", "the", "datanode", "protocol", "address", "in", "the", "zookeeper" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java#L328-L337
119,315
facebookarchive/hadoop-20
src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java
AvatarNodeZkUtil.registerHttpAddress
private static void registerHttpAddress(AvatarZooKeeperClient zk, Configuration originalConf, Configuration conf, boolean toOverwrite) throws UnsupportedEncodingException, IOException { LOG.info("Updating Http Address information in ZooKeeper"); String addr = conf.get(FSConstants.DFS_NAMENODE_HTTP_ADDRESS...
java
private static void registerHttpAddress(AvatarZooKeeperClient zk, Configuration originalConf, Configuration conf, boolean toOverwrite) throws UnsupportedEncodingException, IOException { LOG.info("Updating Http Address information in ZooKeeper"); String addr = conf.get(FSConstants.DFS_NAMENODE_HTTP_ADDRESS...
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Registers the http address of the namenode in the zookeeper
[ "Registers", "the", "http", "address", "of", "the", "namenode", "in", "the", "zookeeper" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/highavailability/src/java/org/apache/hadoop/hdfs/server/namenode/AvatarNodeZkUtil.java#L342-L350
119,316
facebookarchive/hadoop-20
src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/servers/ServerRegistry.java
ServerRegistry.load
private synchronized void load() { Map<String, HadoopServer> map = new TreeMap<String, HadoopServer>(); for (File file : saveDir.listFiles()) { try { HadoopServer server = new HadoopServer(file); map.put(server.getLocationName(), server); } catch (Exception exn) { System.err...
java
private synchronized void load() { Map<String, HadoopServer> map = new TreeMap<String, HadoopServer>(); for (File file : saveDir.listFiles()) { try { HadoopServer server = new HadoopServer(file); map.put(server.getLocationName(), server); } catch (Exception exn) { System.err...
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Load all available locations from the workspace configuration directory.
[ "Load", "all", "available", "locations", "from", "the", "workspace", "configuration", "directory", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/servers/ServerRegistry.java#L87-L99
119,317
facebookarchive/hadoop-20
src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/servers/ServerRegistry.java
ServerRegistry.updateServer
public synchronized void updateServer(String originalName, HadoopServer server) { // Update the map if the location name has changed if (!server.getLocationName().equals(originalName)) { servers.remove(originalName); servers.put(server.getLocationName(), server); } store(); fireLi...
java
public synchronized void updateServer(String originalName, HadoopServer server) { // Update the map if the location name has changed if (!server.getLocationName().equals(originalName)) { servers.remove(originalName); servers.put(server.getLocationName(), server); } store(); fireLi...
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Update one Hadoop location @param originalName the original location name (might have changed) @param server the location
[ "Update", "one", "Hadoop", "location" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/servers/ServerRegistry.java#L192-L202
119,318
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.selectInputStreams
synchronized public boolean selectInputStreams( Collection<EditLogInputStream> streams, long fromTxId, boolean inProgressOk, boolean validateInProgressSegments, int minRedundancy) throws IOException { final PriorityQueue<EditLogInputStream> allStreams = new PriorityQueue<EditLogInputStrea...
java
synchronized public boolean selectInputStreams( Collection<EditLogInputStream> streams, long fromTxId, boolean inProgressOk, boolean validateInProgressSegments, int minRedundancy) throws IOException { final PriorityQueue<EditLogInputStream> allStreams = new PriorityQueue<EditLogInputStrea...
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Selects input streams. Returns true if each stream meets min redundancy, false otherwise.
[ "Selects", "input", "streams", ".", "Returns", "true", "if", "each", "stream", "meets", "min", "redundancy", "false", "otherwise", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L305-L327
119,319
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.hasUnfinalizedSegments
synchronized boolean hasUnfinalizedSegments(long fromTxId) { List<EditLogInputStream> streams = new ArrayList<EditLogInputStream>(); for (JournalAndStream jas : journals) { if (jas.isDisabled()) { continue; } try { // get all streams, including inProgress ones. jas.getM...
java
synchronized boolean hasUnfinalizedSegments(long fromTxId) { List<EditLogInputStream> streams = new ArrayList<EditLogInputStream>(); for (JournalAndStream jas : journals) { if (jas.isDisabled()) { continue; } try { // get all streams, including inProgress ones. jas.getM...
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Check if any journal manager has unfinalized segments. @param fromTxId starting txid
[ "Check", "if", "any", "journal", "manager", "has", "unfinalized", "segments", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L333-L355
119,320
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.isLocalJournal
private static boolean isLocalJournal(JournalManager jm) { if (jm == null || (!(jm instanceof FileJournalManager))) { return false; } return NNStorage.isPreferred(StorageLocationType.LOCAL, ((FileJournalManager) jm).getStorageDirectory()); }
java
private static boolean isLocalJournal(JournalManager jm) { if (jm == null || (!(jm instanceof FileJournalManager))) { return false; } return NNStorage.isPreferred(StorageLocationType.LOCAL, ((FileJournalManager) jm).getStorageDirectory()); }
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Check if the given journal is local.
[ "Check", "if", "the", "given", "journal", "is", "local", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L446-L452
119,321
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.disableAndReportErrorOnJournals
private void disableAndReportErrorOnJournals( List<JournalAndStream> badJournals, String status) throws IOException { if (badJournals == null || badJournals.isEmpty()) { if (forceJournalCheck) { // check status here, because maybe some other operation // (e.g., rollEditLog failed and dis...
java
private void disableAndReportErrorOnJournals( List<JournalAndStream> badJournals, String status) throws IOException { if (badJournals == null || badJournals.isEmpty()) { if (forceJournalCheck) { // check status here, because maybe some other operation // (e.g., rollEditLog failed and dis...
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Called when some journals experience an error in some operation.
[ "Called", "when", "some", "journals", "experience", "an", "error", "in", "some", "operation", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L468-L504
119,322
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.mapJournalsAndReportErrors
private void mapJournalsAndReportErrors( JournalClosure closure, String status) throws IOException{ List<JournalAndStream> badJAS = null; for (JournalAndStream jas : journals) { try { closure.apply(jas); } catch (Throwable t) { if (badJAS == null) badJAS = new LinkedL...
java
private void mapJournalsAndReportErrors( JournalClosure closure, String status) throws IOException{ List<JournalAndStream> badJAS = null; for (JournalAndStream jas : journals) { try { closure.apply(jas); } catch (Throwable t) { if (badJAS == null) badJAS = new LinkedL...
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Apply the given operation across all of the journal managers, disabling any for which the closure throws an IOException. @param closure {@link JournalClosure} object encapsulating the operation. @param status message used for logging errors (e.g. "opening journal") @throws IOException If the operation fails on all the ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L527-L541
119,323
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.mapJournalsAndReportErrorsParallel
private void mapJournalsAndReportErrorsParallel(JournalClosure closure, String status) throws IOException { // set-up calls List<Future<JournalAndStream>> jasResponeses = new ArrayList<Future<JournalAndStream>>( journals.size()); for (JournalAndStream jas : journals) { jasResponeses.ad...
java
private void mapJournalsAndReportErrorsParallel(JournalClosure closure, String status) throws IOException { // set-up calls List<Future<JournalAndStream>> jasResponeses = new ArrayList<Future<JournalAndStream>>( journals.size()); for (JournalAndStream jas : journals) { jasResponeses.ad...
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Apply the given operation across all of the journal managers, disabling any for which the closure throws an IOException. Do it in parallel. @param closure {@link JournalClosure} object encapsulating the operation. @param status message used for logging errors (e.g. "opening journal") @throws IOException If the operatio...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L550-L585
119,324
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.updateJournalMetrics
void updateJournalMetrics() { if (metrics == null) { return; } int failedJournals = 0; for(JournalAndStream jas : journals) { if(jas.isDisabled()) { failedJournals++; } } metrics.journalsFailed.set(failedJournals); }
java
void updateJournalMetrics() { if (metrics == null) { return; } int failedJournals = 0; for(JournalAndStream jas : journals) { if(jas.isDisabled()) { failedJournals++; } } metrics.journalsFailed.set(failedJournals); }
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Get the number of available journals.
[ "Get", "the", "number", "of", "available", "journals", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L590-L601
119,325
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.checkJournals
protected int checkJournals(String status) throws IOException { boolean abort = false; int journalsAvailable = 0; int nonLocalJournalsAvailable = 0; for(JournalAndStream jas : journals) { if(jas.isDisabled() && jas.isRequired()) { abort = true; } else if (jas.isResourceAvailable()) {...
java
protected int checkJournals(String status) throws IOException { boolean abort = false; int journalsAvailable = 0; int nonLocalJournalsAvailable = 0; for(JournalAndStream jas : journals) { if(jas.isDisabled() && jas.isRequired()) { abort = true; } else if (jas.isResourceAvailable()) {...
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Checks if the number of journals available is not below minimum. Only invoked at errors.
[ "Checks", "if", "the", "number", "of", "journals", "available", "is", "not", "below", "minimum", ".", "Only", "invoked", "at", "errors", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L614-L641
119,326
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.getEditLogManifest
public synchronized RemoteEditLogManifest getEditLogManifest(long fromTxId) { // Collect RemoteEditLogs available from each FileJournalManager List<RemoteEditLog> allLogs = new ArrayList<RemoteEditLog>(); for (JournalAndStream j : journals) { JournalManager jm = j.getManager(); try { all...
java
public synchronized RemoteEditLogManifest getEditLogManifest(long fromTxId) { // Collect RemoteEditLogs available from each FileJournalManager List<RemoteEditLog> allLogs = new ArrayList<RemoteEditLog>(); for (JournalAndStream j : journals) { JournalManager jm = j.getManager(); try { all...
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Return a manifest of what edit logs are available. All available edit logs are returned starting from the transaction id passed, including inprogress segments. @param fromTxId Starting transaction id to read the logs. @return RemoteEditLogManifest object.
[ "Return", "a", "manifest", "of", "what", "edit", "logs", "are", "available", ".", "All", "available", "edit", "logs", "are", "returned", "starting", "from", "the", "transaction", "id", "passed", "including", "inprogress", "segments", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L888-L943
119,327
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.getSyncTimes
String getSyncTimes() { StringBuilder buf = new StringBuilder(); for (JournalAndStream jas : journals) { if (jas.isActive()) { buf.append(jas.getCurrentStream().getTotalSyncTime()); buf.append(" "); } } return buf.toString(); }
java
String getSyncTimes() { StringBuilder buf = new StringBuilder(); for (JournalAndStream jas : journals) { if (jas.isActive()) { buf.append(jas.getCurrentStream().getTotalSyncTime()); buf.append(" "); } } return buf.toString(); }
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Add sync times to the buffer.
[ "Add", "sync", "times", "to", "the", "buffer", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L948-L957
119,328
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.transitionNonFileJournals
public void transitionNonFileJournals(StorageInfo nsInfo, boolean checkEmpty, Transition transition, StartupOption startOpt) throws IOException { for (JournalManager jm : getJournalManagers()) { if (!(jm instanceof FileJournalManager)) { if (checkEmpty && jm.hasSomeJournalData()) { ...
java
public void transitionNonFileJournals(StorageInfo nsInfo, boolean checkEmpty, Transition transition, StartupOption startOpt) throws IOException { for (JournalManager jm : getJournalManagers()) { if (!(jm instanceof FileJournalManager)) { if (checkEmpty && jm.hasSomeJournalData()) { ...
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Transition the non-file journals.
[ "Transition", "the", "non", "-", "file", "journals", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L969-L982
119,329
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.getInputStream
public static EditLogInputStream getInputStream(JournalManager jm, long txid) throws IOException { List<EditLogInputStream> streams = new ArrayList<EditLogInputStream>(); jm.selectInputStreams(streams, txid, true, false); if (streams.size() < 1) { throw new IOException("Cannot obtain stream for ...
java
public static EditLogInputStream getInputStream(JournalManager jm, long txid) throws IOException { List<EditLogInputStream> streams = new ArrayList<EditLogInputStream>(); jm.selectInputStreams(streams, txid, true, false); if (streams.size() < 1) { throw new IOException("Cannot obtain stream for ...
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Get input stream from the given journal starting at txid. Does not perform validation of the streams. This should only be used for tailing inprogress streams!!!
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L1004-L1026
119,330
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java
JournalSet.getNonFileJournalManagers
public List<JournalManager> getNonFileJournalManagers() { List<JournalManager> list = new ArrayList<JournalManager>(); for (JournalManager jm : getJournalManagers()) { if (!(jm instanceof FileJournalManager)) { list.add(jm); } } return list; }
java
public List<JournalManager> getNonFileJournalManagers() { List<JournalManager> list = new ArrayList<JournalManager>(); for (JournalManager jm : getJournalManagers()) { if (!(jm instanceof FileJournalManager)) { list.add(jm); } } return list; }
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Return all non-file journal managers.
[ "Return", "all", "non", "-", "file", "journal", "managers", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JournalSet.java#L1042-L1050
119,331
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.attemptRestoreRemovedStorage
void attemptRestoreRemovedStorage() { // if directory is "alive" - copy the images there... if(removedStorageDirs.size() == 0) return; //nothing to restore /* We don't want more than one thread trying to restore at a time */ synchronized (this.restorationLock) { LOG.info("attemptRestoreRemo...
java
void attemptRestoreRemovedStorage() { // if directory is "alive" - copy the images there... if(removedStorageDirs.size() == 0) return; //nothing to restore /* We don't want more than one thread trying to restore at a time */ synchronized (this.restorationLock) { LOG.info("attemptRestoreRemo...
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See if any of removed storages is "writable" again, and can be returned into service.
[ "See", "if", "any", "of", "removed", "storages", "is", "writable", "again", "and", "can", "be", "returned", "into", "service", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L246-L279
119,332
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.getStorageDirectory
StorageDirectory getStorageDirectory(URI uri) { try { uri = Util.fileAsURI(new File(uri)); Iterator<StorageDirectory> it = dirIterator(); for (; it.hasNext(); ) { StorageDirectory sd = it.next(); if (Util.fileAsURI(sd.getRoot()).equals(uri)) { return sd; } }...
java
StorageDirectory getStorageDirectory(URI uri) { try { uri = Util.fileAsURI(new File(uri)); Iterator<StorageDirectory> it = dirIterator(); for (; it.hasNext(); ) { StorageDirectory sd = it.next(); if (Util.fileAsURI(sd.getRoot()).equals(uri)) { return sd; } }...
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Return the storage directory corresponding to the passed URI @param uri URI of a storage directory @return The matching storage directory or null if none found
[ "Return", "the", "storage", "directory", "corresponding", "to", "the", "passed", "URI" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L352-L366
119,333
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.checkSchemeConsistency
private static void checkSchemeConsistency(URI u) throws IOException { String scheme = u.getScheme(); // the URI should have a proper scheme if(scheme == null) { throw new IOException("Undefined scheme for " + u); } }
java
private static void checkSchemeConsistency(URI u) throws IOException { String scheme = u.getScheme(); // the URI should have a proper scheme if(scheme == null) { throw new IOException("Undefined scheme for " + u); } }
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Checks the consistency of a URI, in particular if the scheme is specified @param u URI whose consistency is being checked.
[ "Checks", "the", "consistency", "of", "a", "URI", "in", "particular", "if", "the", "scheme", "is", "specified" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L373-L379
119,334
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.getNumStorageDirs
int getNumStorageDirs(NameNodeDirType dirType) { if(dirType == null) return getNumStorageDirs(); Iterator<StorageDirectory> it = dirIterator(dirType); int numDirs = 0; for(; it.hasNext(); it.next()) numDirs++; return numDirs; }
java
int getNumStorageDirs(NameNodeDirType dirType) { if(dirType == null) return getNumStorageDirs(); Iterator<StorageDirectory> it = dirIterator(dirType); int numDirs = 0; for(; it.hasNext(); it.next()) numDirs++; return numDirs; }
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Return number of storage directories of the given type. @param dirType directory type @return number of storage directories of type dirType
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L404-L412
119,335
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.getDirectories
Collection<File> getDirectories(NameNodeDirType dirType) throws IOException { ArrayList<File> list = new ArrayList<File>(); Iterator<StorageDirectory> it = (dirType == null) ? dirIterator() : dirIterator(dirType); for ( ;it.hasNext(); ) { StorageDirectory sd =...
java
Collection<File> getDirectories(NameNodeDirType dirType) throws IOException { ArrayList<File> list = new ArrayList<File>(); Iterator<StorageDirectory> it = (dirType == null) ? dirIterator() : dirIterator(dirType); for ( ;it.hasNext(); ) { StorageDirectory sd =...
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Return the list of locations being used for a specific purpose. i.e. Image or edit log storage. @param dirType Purpose of locations requested. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L421-L431
119,336
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.readTransactionIdFile
static long readTransactionIdFile(StorageDirectory sd) throws IOException { File txidFile = getStorageFile(sd, NameNodeFile.SEEN_TXID); long txid = 0L; if (txidFile.exists() && txidFile.canRead()) { BufferedReader br = new BufferedReader(new FileReader(txidFile)); try { txid = Long.value...
java
static long readTransactionIdFile(StorageDirectory sd) throws IOException { File txidFile = getStorageFile(sd, NameNodeFile.SEEN_TXID); long txid = 0L; if (txidFile.exists() && txidFile.canRead()) { BufferedReader br = new BufferedReader(new FileReader(txidFile)); try { txid = Long.value...
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Determine the last transaction ID noted in this storage directory. This txid is stored in a special seen_txid file since it might not correspond to the latest image or edit log. For example, an image-only directory will have this txid incremented when edits logs roll, even though the edits logs are in a different direc...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L444-L458
119,337
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.writeTransactionIdFile
void writeTransactionIdFile(StorageDirectory sd, long txid) throws IOException { if (txid < -1) { // -1 is valid when formatting throw new IOException("Bad txid: " + txid); } File txIdFile = getStorageFile(sd, NameNodeFile.SEEN_TXID); OutputStream fos = new AtomicFileOutputStream(txIdFile); ...
java
void writeTransactionIdFile(StorageDirectory sd, long txid) throws IOException { if (txid < -1) { // -1 is valid when formatting throw new IOException("Bad txid: " + txid); } File txIdFile = getStorageFile(sd, NameNodeFile.SEEN_TXID); OutputStream fos = new AtomicFileOutputStream(txIdFile); ...
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Write last checkpoint time into a separate file. @param sd @throws IOException
[ "Write", "last", "checkpoint", "time", "into", "a", "separate", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L466-L481
119,338
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.writeTransactionIdFileToStorage
public void writeTransactionIdFileToStorage(long txid, FSImage image) throws IOException { // Write txid marker in all storage directories List<StorageDirectory> badSDs = new ArrayList<StorageDirectory>(); for (StorageDirectory sd : storageDirs) { try { writeTransactionIdFile(sd, txid); ...
java
public void writeTransactionIdFileToStorage(long txid, FSImage image) throws IOException { // Write txid marker in all storage directories List<StorageDirectory> badSDs = new ArrayList<StorageDirectory>(); for (StorageDirectory sd : storageDirs) { try { writeTransactionIdFile(sd, txid); ...
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Write a small file in all available storage directories that indicates that the namespace has reached some given transaction ID. This is used when the image is loaded to avoid accidental rollbacks in the case where an edit log is fully deleted but there is no checkpoint. See TestNameEditsConfigs.testNameEditsConfigsFa...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L516-L534
119,339
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.getFsImageNameCheckpoint
public File[] getFsImageNameCheckpoint(long txid) { ArrayList<File> list = new ArrayList<File>(); for (Iterator<StorageDirectory> it = dirIterator(NameNodeDirType.IMAGE); it.hasNext();) { list.add(getStorageFile(it.next(), NameNodeFile.IMAGE_NEW, txid)); } return list.toArray(new ...
java
public File[] getFsImageNameCheckpoint(long txid) { ArrayList<File> list = new ArrayList<File>(); for (Iterator<StorageDirectory> it = dirIterator(NameNodeDirType.IMAGE); it.hasNext();) { list.add(getStorageFile(it.next(), NameNodeFile.IMAGE_NEW, txid)); } return list.toArray(new ...
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Return the name of the image file that is uploaded by periodic checkpointing @return List of filenames to save checkpoints to.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L542-L549
119,340
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.getFsImageName
public File getFsImageName(StorageLocationType type, long txid) { File lastCandidate = null; for (Iterator<StorageDirectory> it = dirIterator(NameNodeDirType.IMAGE); it.hasNext();) { StorageDirectory sd = it.next(); File fsImage = getStorageFile(sd, NameNodeFile.IMAGE, txid); if(sd.getRo...
java
public File getFsImageName(StorageLocationType type, long txid) { File lastCandidate = null; for (Iterator<StorageDirectory> it = dirIterator(NameNodeDirType.IMAGE); it.hasNext();) { StorageDirectory sd = it.next(); File fsImage = getStorageFile(sd, NameNodeFile.IMAGE, txid); if(sd.getRo...
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Return the name of the image file, preferring "type" images. Otherwise, return any image. @return The name of the image file.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L557-L571
119,341
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.format
public void format() throws IOException { this.layoutVersion = FSConstants.LAYOUT_VERSION; this.namespaceID = newNamespaceID(); this.cTime = 0L; for (Iterator<StorageDirectory> it = dirIterator(); it.hasNext();) { StorageDirectory sd = it.next(); format(sd); } ...
java
public void format() throws IOException { this.layoutVersion = FSConstants.LAYOUT_VERSION; this.namespaceID = newNamespaceID(); this.cTime = 0L; for (Iterator<StorageDirectory> it = dirIterator(); it.hasNext();) { StorageDirectory sd = it.next(); format(sd); } ...
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Format all available storage directories.
[ "Format", "all", "available", "storage", "directories", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L593-L602
119,342
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.newNamespaceID
static int newNamespaceID() { Random r = new Random(); r.setSeed(FSNamesystem.now()); int newID = 0; while(newID == 0) newID = r.nextInt(0x7FFFFFFF); // use 31 bits only return newID; }
java
static int newNamespaceID() { Random r = new Random(); r.setSeed(FSNamesystem.now()); int newID = 0; while(newID == 0) newID = r.nextInt(0x7FFFFFFF); // use 31 bits only return newID; }
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Generate new namespaceID. namespaceID is a persistent attribute of the namespace. It is generated when the namenode is formatted and remains the same during the life cycle of the namenode. When a datanodes register they receive it as the registrationID, which is checked every time the datanode is communicating with th...
[ "Generate", "new", "namespaceID", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L627-L634
119,343
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.getDeprecatedProperty
String getDeprecatedProperty(String prop) { assert getLayoutVersion() > FSConstants.LAYOUT_VERSION : "getDeprecatedProperty should only be done when loading " + "storage from past versions during upgrade."; return deprecatedProperties.get(prop); }
java
String getDeprecatedProperty(String prop) { assert getLayoutVersion() > FSConstants.LAYOUT_VERSION : "getDeprecatedProperty should only be done when loading " + "storage from past versions during upgrade."; return deprecatedProperties.get(prop); }
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Return a property that was stored in an earlier version of HDFS. This should only be used during upgrades.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L658-L663
119,344
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.setFields
@Override // Storage protected void setFields(Properties props, StorageDirectory sd) throws IOException { super.setFields(props, sd); boolean uState = getDistributedUpgradeState(); int uVersion = getDistributedUpgradeVersion(); if (uState && uVersion != getLayoutVersion()) { props.setPro...
java
@Override // Storage protected void setFields(Properties props, StorageDirectory sd) throws IOException { super.setFields(props, sd); boolean uState = getDistributedUpgradeState(); int uVersion = getDistributedUpgradeVersion(); if (uState && uVersion != getLayoutVersion()) { props.setPro...
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Write version file into the storage directory. The version file should always be written last. Missing or corrupted version file indicates that the checkpoint is not valid. @param sd storage directory @throws IOException
[ "Write", "version", "file", "into", "the", "storage", "directory", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L675-L686
119,345
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.setDeprecatedPropertiesForUpgrade
private void setDeprecatedPropertiesForUpgrade(Properties props) { deprecatedProperties = new HashMap<String, String>(); String md5 = props.getProperty(MESSAGE_DIGEST_PROPERTY); if (md5 != null) { deprecatedProperties.put(MESSAGE_DIGEST_PROPERTY, md5); } }
java
private void setDeprecatedPropertiesForUpgrade(Properties props) { deprecatedProperties = new HashMap<String, String>(); String md5 = props.getProperty(MESSAGE_DIGEST_PROPERTY); if (md5 != null) { deprecatedProperties.put(MESSAGE_DIGEST_PROPERTY, md5); } }
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Pull any properties out of the VERSION file that are from older versions of HDFS and only necessary during upgrade.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L692-L698
119,346
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.findFinalizedEditsFile
File findFinalizedEditsFile(long startTxId, long endTxId) throws IOException { File ret = findFile(NameNodeDirType.EDITS, getFinalizedEditsFileName(startTxId, endTxId)); if (ret == null) { throw new IOException( "No edits file for txid " + startTxId + "-" + endTxId + " exists!"); }...
java
File findFinalizedEditsFile(long startTxId, long endTxId) throws IOException { File ret = findFile(NameNodeDirType.EDITS, getFinalizedEditsFileName(startTxId, endTxId)); if (ret == null) { throw new IOException( "No edits file for txid " + startTxId + "-" + endTxId + " exists!"); }...
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Return the first readable finalized edits file for the given txid.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L762-L771
119,347
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.findInProgressEditsFile
File findInProgressEditsFile(long startTxId) throws IOException { File ret = findFile(NameNodeDirType.EDITS, getInProgressEditsFileName(startTxId)); if (ret == null) { throw new IOException( "No edits file for txid " + startTxId + "-in progress"); } return ret; }
java
File findInProgressEditsFile(long startTxId) throws IOException { File ret = findFile(NameNodeDirType.EDITS, getInProgressEditsFileName(startTxId)); if (ret == null) { throw new IOException( "No edits file for txid " + startTxId + "-in progress"); } return ret; }
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Return the first readable inprogress edits file for the given txid.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L776-L785
119,348
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.findFile
private File findFile(NameNodeDirType dirType, String name) { for (StorageDirectory sd : dirIterable(dirType)) { File candidate = new File(sd.getCurrentDir(), name); if (sd.getCurrentDir().canRead() && candidate.exists()) { return candidate; } } return null; }
java
private File findFile(NameNodeDirType dirType, String name) { for (StorageDirectory sd : dirIterable(dirType)) { File candidate = new File(sd.getCurrentDir(), name); if (sd.getCurrentDir().canRead() && candidate.exists()) { return candidate; } } return null; }
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Return the first readable storage file of the given name across any of the 'current' directories in SDs of the given type, or null if no such file exists.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L801-L810
119,349
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.isPreferred
static boolean isPreferred(StorageLocationType type, StorageDirectory sd) { if ((sd instanceof NNStorageDirectory)) { return ((NNStorageDirectory) sd).type == type; } // by default all are preferred return true; }
java
static boolean isPreferred(StorageLocationType type, StorageDirectory sd) { if ((sd instanceof NNStorageDirectory)) { return ((NNStorageDirectory) sd).type == type; } // by default all are preferred return true; }
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Checks if we have information about this directory that it is preferred. @param type preferred type @param sd storage directory
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L818-L824
119,350
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.getType
static StorageLocationType getType(StorageDirectory sd) { if ((sd instanceof NNStorageDirectory)) { return ((NNStorageDirectory) sd).type; } // by default all are local return StorageLocationType.LOCAL; }
java
static StorageLocationType getType(StorageDirectory sd) { if ((sd instanceof NNStorageDirectory)) { return ((NNStorageDirectory) sd).type; } // by default all are local return StorageLocationType.LOCAL; }
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Get the type of given directory.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L829-L835
119,351
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.verifyDistributedUpgradeProgress
void verifyDistributedUpgradeProgress(StartupOption startOpt ) throws IOException { if(startOpt == StartupOption.ROLLBACK || startOpt == StartupOption.IMPORT) return; assert upgradeManager != null : "FSNameSystem.upgradeManager is null."; if(startOpt != Startup...
java
void verifyDistributedUpgradeProgress(StartupOption startOpt ) throws IOException { if(startOpt == StartupOption.ROLLBACK || startOpt == StartupOption.IMPORT) return; assert upgradeManager != null : "FSNameSystem.upgradeManager is null."; if(startOpt != Startup...
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Verify that the distributed upgrade state is valid. @param startOpt the option the namenode was started with.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L888-L906
119,352
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.initializeDistributedUpgrade
void initializeDistributedUpgrade() throws IOException { if(! upgradeManager.initializeUpgrade()) return; // write new upgrade state into disk writeAll(); LOG.info("\n Distributed upgrade for NameNode version " + upgradeManager.getUpgradeVersion() + " to current LV " + ...
java
void initializeDistributedUpgrade() throws IOException { if(! upgradeManager.initializeUpgrade()) return; // write new upgrade state into disk writeAll(); LOG.info("\n Distributed upgrade for NameNode version " + upgradeManager.getUpgradeVersion() + " to current LV " + ...
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Initialize a distributed upgrade.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L911-L919
119,353
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.reportErrorsOnDirectories
synchronized void reportErrorsOnDirectories(List<StorageDirectory> sds, FSImage image) throws IOException { for (StorageDirectory sd : sds) { reportErrorsOnDirectory(sd, image); } // check image managers (this will update image metrics) if (image != null) { image.checkImageManager...
java
synchronized void reportErrorsOnDirectories(List<StorageDirectory> sds, FSImage image) throws IOException { for (StorageDirectory sd : sds) { reportErrorsOnDirectory(sd, image); } // check image managers (this will update image metrics) if (image != null) { image.checkImageManager...
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Marks a list of directories as having experienced an error. @param sds A list of storage directories to mark as errored. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L935-L955
119,354
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.reportErrorsOnDirectory
synchronized void reportErrorsOnDirectory(StorageDirectory sd, FSImage image) { String lsd = listStorageDirectories(); LOG.info("reportErrorsOnDirectory: Current list of storage dirs:" + lsd); LOG.error("reportErrorsOnDirectory: Error reported on storage directory " + sd.getRoot()); if ...
java
synchronized void reportErrorsOnDirectory(StorageDirectory sd, FSImage image) { String lsd = listStorageDirectories(); LOG.info("reportErrorsOnDirectory: Current list of storage dirs:" + lsd); LOG.error("reportErrorsOnDirectory: Error reported on storage directory " + sd.getRoot()); if ...
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Reports that a directory has experienced an error. Notifies listeners that the directory is no longer available. @param sd A storage directory to mark as errored. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L965-L989
119,355
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.reportErrorOnFile
public void reportErrorOnFile(File f) { // We use getAbsolutePath here instead of getCanonicalPath since we know // that there is some IO problem on that drive. // getCanonicalPath may need to call stat() or readlink() and it's likely // those calls would fail due to the same underlying IO problem. ...
java
public void reportErrorOnFile(File f) { // We use getAbsolutePath here instead of getCanonicalPath since we know // that there is some IO problem on that drive. // getCanonicalPath may need to call stat() or readlink() and it's likely // those calls would fail due to the same underlying IO problem. ...
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Report that an IOE has occurred on some file which may or may not be within one of the NN image storage directories.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L995-L1012
119,356
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.inspectStorageDirs
void inspectStorageDirs(FSImageStorageInspector inspector) throws IOException { // Process each of the storage directories to find the pair of // newest image file and edit file for (Iterator<StorageDirectory> it = dirIterator(); it.hasNext();) { StorageDirectory sd = it.next(); inspector...
java
void inspectStorageDirs(FSImageStorageInspector inspector) throws IOException { // Process each of the storage directories to find the pair of // newest image file and edit file for (Iterator<StorageDirectory> it = dirIterator(); it.hasNext();) { StorageDirectory sd = it.next(); inspector...
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Iterate over all current storage directories, inspecting them with the given inspector.
[ "Iterate", "over", "all", "current", "storage", "directories", "inspecting", "them", "with", "the", "given", "inspector", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L1018-L1027
119,357
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java
NNStorage.readAndInspectDirs
FSImageStorageInspector readAndInspectDirs() throws IOException { int minLayoutVersion = Integer.MAX_VALUE; // the newest int maxLayoutVersion = Integer.MIN_VALUE; // the oldest // First determine what range of layout versions we're going to inspect for (Iterator<StorageDirectory> it = dirIte...
java
FSImageStorageInspector readAndInspectDirs() throws IOException { int minLayoutVersion = Integer.MAX_VALUE; // the newest int maxLayoutVersion = Integer.MIN_VALUE; // the oldest // First determine what range of layout versions we're going to inspect for (Iterator<StorageDirectory> it = dirIte...
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Iterate over all of the storage dirs, reading their contents to determine their layout versions. Returns an FSImageStorageInspector which has inspected each directory. <b>Note:</b> this can mutate the storage info fields (ctime, version, etc). @throws IOException if no valid storage dirs are found
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/NNStorage.java#L1037-L1075
119,358
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.isAvailable
public static boolean isAvailable() { try { String osName = System.getProperty("os.name"); if (!osName.startsWith("Linux")) { LOG.info("ProcfsBasedProcessTree currently is supported only on " + "Linux."); return false; } } catch (SecurityException se) { LOG.wa...
java
public static boolean isAvailable() { try { String osName = System.getProperty("os.name"); if (!osName.startsWith("Linux")) { LOG.info("ProcfsBasedProcessTree currently is supported only on " + "Linux."); return false; } } catch (SecurityException se) { LOG.wa...
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Checks if the ProcfsBasedProcessTree is available on this system. @return true if ProcfsBasedProcessTree is available. False otherwise.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L144-L157
119,359
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.getProcessTree
public ProcfsBasedProcessTree getProcessTree() { if (pid != -1) { // Get the list of processes List<Integer> processList = getProcessList(); Map<Integer, ProcessInfo> allProcessInfo = new HashMap<Integer, ProcessInfo>(); // cache the processTree to get the age for processes Map...
java
public ProcfsBasedProcessTree getProcessTree() { if (pid != -1) { // Get the list of processes List<Integer> processList = getProcessList(); Map<Integer, ProcessInfo> allProcessInfo = new HashMap<Integer, ProcessInfo>(); // cache the processTree to get the age for processes Map...
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Get the process-tree with latest state. If the root-process is not alive, an empty tree will be returned. @return the process-tree with latest state.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L165-L234
119,360
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.isAnyProcessInTreeAlive
public boolean isAnyProcessInTreeAlive() { for (Integer pId : processTree.keySet()) { if (isAlive(pId.toString())) { return true; } } return false; }
java
public boolean isAnyProcessInTreeAlive() { for (Integer pId : processTree.keySet()) { if (isAlive(pId.toString())) { return true; } } return false; }
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Is any of the subprocesses in the process-tree alive? @return true if any of the processes in the process-tree is alive, false otherwise.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L255-L262
119,361
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.checkPidPgrpidForMatch
static boolean checkPidPgrpidForMatch(String pidStr, String procfsDir) { Integer pId = Integer.parseInt(pidStr); // Get information for this process ProcessInfo pInfo = new ProcessInfo(pId); pInfo = constructProcessInfo(pInfo, procfsDir); if (pInfo == null) { // process group leader may have f...
java
static boolean checkPidPgrpidForMatch(String pidStr, String procfsDir) { Integer pId = Integer.parseInt(pidStr); // Get information for this process ProcessInfo pInfo = new ProcessInfo(pId); pInfo = constructProcessInfo(pInfo, procfsDir); if (pInfo == null) { // process group leader may have f...
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Verify that the given process id is same as its process group id. @param pidStr Process id of the to-be-verified-process @param procfsDir Procfs root dir
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L268-L289
119,362
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.assertAndDestroyProcessGroup
public static void assertAndDestroyProcessGroup(String pgrpId, long interval, boolean inBackground) throws IOException { // Make sure that the pid given is a process group leader if (!checkPidPgrpidForMatch(pgrpId, PROCFS)) { throw new IOException("Process with PID " + pgrp...
java
public static void assertAndDestroyProcessGroup(String pgrpId, long interval, boolean inBackground) throws IOException { // Make sure that the pid given is a process group leader if (!checkPidPgrpidForMatch(pgrpId, PROCFS)) { throw new IOException("Process with PID " + pgrp...
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Make sure that the given pid is a process group leader and then destroy the process group. @param pgrpId Process group id of to-be-killed-processes @param interval The time to wait before sending SIGKILL after sending SIGTERM @param inBackground Process is to be killed in the back ground with a separate thread
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L299-L308
119,363
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.getProcessTreeDump
public String getProcessTreeDump() { StringBuilder ret = new StringBuilder(); // The header. ret.append(String.format("\t|- PID PPID PGRPID SESSID CMD_NAME " + "USER_MODE_TIME(MILLIS) SYSTEM_TIME(MILLIS) VMEM_USAGE(BYTES) " + "RSSMEM_USAGE(PAGES) FULL_CMD_LINE\n")); for (ProcessInfo p : ...
java
public String getProcessTreeDump() { StringBuilder ret = new StringBuilder(); // The header. ret.append(String.format("\t|- PID PPID PGRPID SESSID CMD_NAME " + "USER_MODE_TIME(MILLIS) SYSTEM_TIME(MILLIS) VMEM_USAGE(BYTES) " + "RSSMEM_USAGE(PAGES) FULL_CMD_LINE\n")); for (ProcessInfo p : ...
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Get a dump of the process-tree. @return a string concatenating the dump of information of all the processes in the process-tree
[ "Get", "a", "dump", "of", "the", "process", "-", "tree", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L355-L370
119,364
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.getProcessNameContainsCount
public Collection<String> getProcessNameContainsCount(String name) { List<String> retProcessList = new ArrayList<String>(); // Get the list of processes List<Integer> processList = getProcessList(); for (Integer proc : processList) { // Get information for each process ProcessInfo p = new P...
java
public Collection<String> getProcessNameContainsCount(String name) { List<String> retProcessList = new ArrayList<String>(); // Get the list of processes List<Integer> processList = getProcessList(); for (Integer proc : processList) { // Get information for each process ProcessInfo p = new P...
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Get a count of the number of processes that have a commandline that matches a name. @param name Name to check the commandline contains @return Collection of strings concatenating the dump of information of all the processes in the process-tree that match the name
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L381-L402
119,365
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.getCumulativeVmem
public long getCumulativeVmem(int olderThanAge) { long total = 0; for (ProcessInfo p : processTree.values()) { if ((p != null) && (p.getAge() > olderThanAge)) { total += p.getVmem(); } } return total; }
java
public long getCumulativeVmem(int olderThanAge) { long total = 0; for (ProcessInfo p : processTree.values()) { if ((p != null) && (p.getAge() > olderThanAge)) { total += p.getVmem(); } } return total; }
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Get the cumulative virtual memory used by all the processes in the process-tree that are older than the passed in age. @param olderThanAge processes above this age are included in the memory addition @return cumulative virtual memory used by the process-tree in bytes, for processes older than this age.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L436-L444
119,366
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.getCumulativeCpuTime
public long getCumulativeCpuTime() { if (JIFFY_LENGTH_IN_MILLIS < 0) { return 0; } long incJiffies = 0; for (ProcessInfo p : processTree.values()) { if (p != null) { incJiffies += p.dtime; } } if (incJiffies * JIFFY_LENGTH_IN_MILLIS < Integer.MAX_VALUE) { // Ignor...
java
public long getCumulativeCpuTime() { if (JIFFY_LENGTH_IN_MILLIS < 0) { return 0; } long incJiffies = 0; for (ProcessInfo p : processTree.values()) { if (p != null) { incJiffies += p.dtime; } } if (incJiffies * JIFFY_LENGTH_IN_MILLIS < Integer.MAX_VALUE) { // Ignor...
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Get the CPU time in millisecond used by all the processes in the process-tree since the process-tree created @return cumulative CPU time in millisecond since the process-tree created return 0 if it cannot be calculated
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L476-L492
119,367
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.getProcessList
private List<Integer> getProcessList() { String[] processDirs = (new File(procfsDir)).list(); List<Integer> processList = new ArrayList<Integer>(); for (String dir : processDirs) { try { int pd = Integer.parseInt(dir); if ((new File(procfsDir, dir)).isDirectory()) { processL...
java
private List<Integer> getProcessList() { String[] processDirs = (new File(procfsDir)).list(); List<Integer> processList = new ArrayList<Integer>(); for (String dir : processDirs) { try { int pd = Integer.parseInt(dir); if ((new File(procfsDir, dir)).isDirectory()) { processL...
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Get the list of all processes in the system.
[ "Get", "the", "list", "of", "all", "processes", "in", "the", "system", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L510-L527
119,368
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java
ProcfsBasedProcessTree.constructProcessInfo
private static ProcessInfo constructProcessInfo(ProcessInfo pinfo, String procfsDir) { ProcessInfo ret = null; // Read "procfsDir/<pid>/stat" file - typically /proc/<pid>/stat BufferedReader in = null; FileReader fReader = null; try { File p...
java
private static ProcessInfo constructProcessInfo(ProcessInfo pinfo, String procfsDir) { ProcessInfo ret = null; // Read "procfsDir/<pid>/stat" file - typically /proc/<pid>/stat BufferedReader in = null; FileReader fReader = null; try { File p...
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Construct the ProcessInfo using the process' PID and procfs rooted at the specified directory and return the same. It is provided mainly to assist testing purposes. Returns null on failing to read from procfs, @param pinfo ProcessInfo that needs to be updated @param procfsDir root of the proc file system @return upda...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/ProcfsBasedProcessTree.java#L540-L591
119,369
facebookarchive/hadoop-20
src/benchmarks/mstress/MStress_Client.java
MStress_Client.parseOptions
private static void parseOptions(String args[]) { if (!(args.length == 14 || args.length == 12 || args.length == 5)) { usage(); } /* * As described in usage(): * -s dfs-server * -p dfs-port [-t [create|create-write|stat|readdir|read|rename|delete] * -a planfile-path * -c ho...
java
private static void parseOptions(String args[]) { if (!(args.length == 14 || args.length == 12 || args.length == 5)) { usage(); } /* * As described in usage(): * -s dfs-server * -p dfs-port [-t [create|create-write|stat|readdir|read|rename|delete] * -a planfile-path * -c ho...
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Parses command line options. the hostName, processName are used to namespace the files created by this instance of the benchmark.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/benchmarks/mstress/MStress_Client.java#L178-L237
119,370
facebookarchive/hadoop-20
src/benchmarks/mstress/MStress_Client.java
MStress_Client.usage
private static void usage() { String className = MStress_Client.class.getName(); System.out.printf("Usage: java %s -s dfs-server -p dfs-port" + "[-t [create|stat|read|readdir|delete|rename] -a planfile-path -c host -n process-name" + " -P prefix]\n", className); System.ou...
java
private static void usage() { String className = MStress_Client.class.getName(); System.out.printf("Usage: java %s -s dfs-server -p dfs-port" + "[-t [create|stat|read|readdir|delete|rename] -a planfile-path -c host -n process-name" + " -P prefix]\n", className); System.ou...
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Prints usage information to standard out.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/benchmarks/mstress/MStress_Client.java#L242-L255
119,371
facebookarchive/hadoop-20
src/benchmarks/mstress/MStress_Client.java
MStress_Client.parsePlanFile
private static int parsePlanFile() { int ret = -1; try { FileInputStream fis = new FileInputStream(planfilePath_); DataInputStream dis = new DataInputStream(fis); BufferedReader br = new BufferedReader(new InputStreamReader(dis)); if (prefix_.isEmpty()) { prefix_ = "PATH_PREFI...
java
private static int parsePlanFile() { int ret = -1; try { FileInputStream fis = new FileInputStream(planfilePath_); DataInputStream dis = new DataInputStream(fis); BufferedReader br = new BufferedReader(new InputStreamReader(dis)); if (prefix_.isEmpty()) { prefix_ = "PATH_PREFI...
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Parses the plan file that contains parameters for the benchmark.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/benchmarks/mstress/MStress_Client.java#L260-L302
119,372
facebookarchive/hadoop-20
src/benchmarks/mstress/MStress_Client.java
MStress_Client.CreateDFSPaths
private static int CreateDFSPaths(int level, String parentPath) { Boolean isLeaf = false; Boolean isDir = false; if (level + 1 >= levels_) { isLeaf = true; } if (isLeaf) { if (type_.equals("dir")) { isDir = true; } else { isDir = false; } } else { is...
java
private static int CreateDFSPaths(int level, String parentPath) { Boolean isLeaf = false; Boolean isDir = false; if (level + 1 >= levels_) { isLeaf = true; } if (isLeaf) { if (type_.equals("dir")) { isDir = true; } else { isDir = false; } } else { is...
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Recursively creates directories and files. @param level current level of depth @param parentPath the prefix to the path we have traversed into so far @return -1 on error, 0 on success
[ "Recursively", "creates", "directories", "and", "files", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/benchmarks/mstress/MStress_Client.java#L318-L386
119,373
facebookarchive/hadoop-20
src/benchmarks/mstress/MStress_Client.java
MStress_Client.createWriteDFSPaths
private static int createWriteDFSPaths() { if (createDFSPaths() != 0) { return -1; } try { // write to all the files! for (Map.Entry<String, OutputStream> file : files_.entrySet()) { OutputStream os = file.getValue(); long startTime = System.nanoTime(); os.write(data_.getByte...
java
private static int createWriteDFSPaths() { if (createDFSPaths() != 0) { return -1; } try { // write to all the files! for (Map.Entry<String, OutputStream> file : files_.entrySet()) { OutputStream os = file.getValue(); long startTime = System.nanoTime(); os.write(data_.getByte...
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This creates DFS paths and writes data_ to them in one go. @return -1 on error, 0 on success
[ "This", "creates", "DFS", "paths", "and", "writes", "data_", "to", "them", "in", "one", "go", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/benchmarks/mstress/MStress_Client.java#L425-L449
119,374
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaJobTrackerRunner.java
CoronaJobTrackerRunner.localizeTaskConfiguration
@SuppressWarnings("deprecation") private void localizeTaskConfiguration(TaskTracker tracker, JobConf ttConf, String workDir, Task t, JobID jobID) throws IOException { Path jobFile = new Path(t.getJobFile()); FileSystem systemFS = tracker.systemFS; this.localizedJobFile = new Path(workDir, jobID + "....
java
@SuppressWarnings("deprecation") private void localizeTaskConfiguration(TaskTracker tracker, JobConf ttConf, String workDir, Task t, JobID jobID) throws IOException { Path jobFile = new Path(t.getJobFile()); FileSystem systemFS = tracker.systemFS; this.localizedJobFile = new Path(workDir, jobID + "....
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Copies the job file to the working directory of the process that will be started.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaJobTrackerRunner.java#L58-L81
119,375
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaJobTrackerRunner.java
CoronaJobTrackerRunner.prepare
@Override public boolean prepare() throws IOException { if (!super.prepare()) { return false; } mapOutputFile.removeAll(getTask().getTaskID()); return true; }
java
@Override public boolean prepare() throws IOException { if (!super.prepare()) { return false; } mapOutputFile.removeAll(getTask().getTaskID()); return true; }
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Delete any temporary files from previous failed attempts.
[ "Delete", "any", "temporary", "files", "from", "previous", "failed", "attempts", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaJobTrackerRunner.java#L84-L92
119,376
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java
CompositeInputFormat.addDefaults
protected void addDefaults() { try { Parser.CNode.addIdentifier("inner", InnerJoinRecordReader.class); Parser.CNode.addIdentifier("outer", OuterJoinRecordReader.class); Parser.CNode.addIdentifier("override", OverrideRecordReader.class); Parser.WNode.addIdentifier("tbl", WrappedRecordReader.c...
java
protected void addDefaults() { try { Parser.CNode.addIdentifier("inner", InnerJoinRecordReader.class); Parser.CNode.addIdentifier("outer", OuterJoinRecordReader.class); Parser.CNode.addIdentifier("override", OverrideRecordReader.class); Parser.WNode.addIdentifier("tbl", WrappedRecordReader.c...
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Adds the default set of identifiers to the parser.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java#L80-L89
119,377
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java
CompositeInputFormat.addUserIdentifiers
private void addUserIdentifiers(JobConf job) throws IOException { Pattern x = Pattern.compile("^mapred\\.join\\.define\\.(\\w+)$"); for (Map.Entry<String,String> kv : job) { Matcher m = x.matcher(kv.getKey()); if (m.matches()) { try { Parser.CNode.addIdentifier(m.group(1), ...
java
private void addUserIdentifiers(JobConf job) throws IOException { Pattern x = Pattern.compile("^mapred\\.join\\.define\\.(\\w+)$"); for (Map.Entry<String,String> kv : job) { Matcher m = x.matcher(kv.getKey()); if (m.matches()) { try { Parser.CNode.addIdentifier(m.group(1), ...
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Inform the parser of user-defined types.
[ "Inform", "the", "parser", "of", "user", "-", "defined", "types", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java#L94-L108
119,378
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java
CompositeInputFormat.getSplits
public InputSplit[] getSplits(JobConf job, int numSplits) throws IOException { setFormat(job); job.setLong("mapred.min.split.size", Long.MAX_VALUE); return root.getSplits(job, numSplits); }
java
public InputSplit[] getSplits(JobConf job, int numSplits) throws IOException { setFormat(job); job.setLong("mapred.min.split.size", Long.MAX_VALUE); return root.getSplits(job, numSplits); }
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Build a CompositeInputSplit from the child InputFormats by assigning the ith split from each child to the ith composite split.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java#L114-L118
119,379
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java
CompositeInputFormat.getRecordReader
@SuppressWarnings("unchecked") // child types unknown public ComposableRecordReader<K,TupleWritable> getRecordReader( InputSplit split, JobConf job, Reporter reporter) throws IOException { setFormat(job); return root.getRecordReader(split, job, reporter); }
java
@SuppressWarnings("unchecked") // child types unknown public ComposableRecordReader<K,TupleWritable> getRecordReader( InputSplit split, JobConf job, Reporter reporter) throws IOException { setFormat(job); return root.getRecordReader(split, job, reporter); }
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Construct a CompositeRecordReader for the children of this InputFormat as defined in the init expression. The outermost join need only be composable, not necessarily a composite. Mandating TupleWritable isn't strictly correct.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/join/CompositeInputFormat.java#L126-L131
119,380
facebookarchive/hadoop-20
src/core/org/apache/hadoop/log/LogLevel.java
LogLevel.main
public static void main(String[] args) { if (args.length == 3 && "-getlevel".equals(args[0])) { process("http://" + args[1] + "/logLevel?log=" + args[2]); return; } else if (args.length == 4 && "-setlevel".equals(args[0])) { process("http://" + args[1] + "/logLevel?log=" + args[2] ...
java
public static void main(String[] args) { if (args.length == 3 && "-getlevel".equals(args[0])) { process("http://" + args[1] + "/logLevel?log=" + args[2]); return; } else if (args.length == 4 && "-setlevel".equals(args[0])) { process("http://" + args[1] + "/logLevel?log=" + args[2] ...
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A command line implementation
[ "A", "command", "line", "implementation" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/log/LogLevel.java#L44-L57
119,381
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/s3/S3FileSystem.java
S3FileSystem.getFileStatus
@Override public FileStatus getFileStatus(Path f) throws IOException { INode inode = store.retrieveINode(makeAbsolute(f)); if (inode == null) { throw new FileNotFoundException(f + ": No such file or directory."); } return new S3FileStatus(f.makeQualified(this), inode); }
java
@Override public FileStatus getFileStatus(Path f) throws IOException { INode inode = store.retrieveINode(makeAbsolute(f)); if (inode == null) { throw new FileNotFoundException(f + ": No such file or directory."); } return new S3FileStatus(f.makeQualified(this), inode); }
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FileStatus for S3 file systems.
[ "FileStatus", "for", "S3", "file", "systems", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/s3/S3FileSystem.java#L330-L337
119,382
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java
ServerDispatcher.assignClient
@Override public void assignClient(long clientId) { LOG.info("Assigning client " + clientId + " ..."); synchronized (clientModificationsLock) { newlyAssignedClients.add(clientId); } }
java
@Override public void assignClient(long clientId) { LOG.info("Assigning client " + clientId + " ..."); synchronized (clientModificationsLock) { newlyAssignedClients.add(clientId); } }
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Assigns a client to this dispatcher. If a notification fails to be sent to a client, then it will be placed in a queue and the assigned dispatcher for each client will try to re-send notifications from that queue. @param clientId the id of the assigned client.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java#L165-L171
119,383
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java
ServerDispatcher.handleFailedDispatch
@Override public void handleFailedDispatch(long clientId, long failedTime) { ClientData clientData = core.getClientData(clientId); if (failedTime == -1 || clientData == null) return; // We only add it and don't update it because we are interested in // keeping track of the first moment it f...
java
@Override public void handleFailedDispatch(long clientId, long failedTime) { ClientData clientData = core.getClientData(clientId); if (failedTime == -1 || clientData == null) return; // We only add it and don't update it because we are interested in // keeping track of the first moment it f...
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Called each time a handleNotification or heartbeat Thrift call fails. @param clientId the id of the client on which the call failed. @param failedTime the time at which the call was made. If this is -1, then nothing will be updated.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java#L390-L404
119,384
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java
ServerDispatcher.handleSuccessfulDispatch
@Override public void handleSuccessfulDispatch(long clientId, long sentTime) { ClientData clientData = core.getClientData(clientId); if (sentTime == -1 || clientData == null) return; clientData.markedAsFailedTime = -1; if (clientData.markedAsFailedTime != -1) { LOG.info("Unmarking " +...
java
@Override public void handleSuccessfulDispatch(long clientId, long sentTime) { ClientData clientData = core.getClientData(clientId); if (sentTime == -1 || clientData == null) return; clientData.markedAsFailedTime = -1; if (clientData.markedAsFailedTime != -1) { LOG.info("Unmarking " +...
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Called each time a handleNotification or heartbeat Thrift call is successful. @param clientId the id of the client on which the call was successful. @param sentTime the time at which the call was made. Nothing happens if this is -1.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java#L414-L426
119,385
facebookarchive/hadoop-20
src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java
ServerDispatcher.updateClients
private void updateClients() { assignedClients.addAll(newlyAssignedClients); assignedClients.removeAll(removedClients); newlyAssignedClients.clear(); removedClients.clear(); }
java
private void updateClients() { assignedClients.addAll(newlyAssignedClients); assignedClients.removeAll(removedClients); newlyAssignedClients.clear(); removedClients.clear(); }
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Must be called with the clientsModificationLock hold.
[ "Must", "be", "called", "with", "the", "clientsModificationLock", "hold", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/namespace-notifier/src/java/org/apache/hadoop/hdfs/notifier/server/ServerDispatcher.java#L432-L438
119,386
facebookarchive/hadoop-20
src/examples/org/apache/hadoop/examples/DBCountPageView.java
DBCountPageView.populateAccess
private void populateAccess() throws SQLException { PreparedStatement statement = null ; try { statement = connection.prepareStatement( "INSERT INTO Access(url, referrer, time)" + " VALUES (?, ?, ?)"); Random random = new Random(); int time = random.nextInt(50) + 50; ...
java
private void populateAccess() throws SQLException { PreparedStatement statement = null ; try { statement = connection.prepareStatement( "INSERT INTO Access(url, referrer, time)" + " VALUES (?, ?, ?)"); Random random = new Random(); int time = random.nextInt(50) + 50; ...
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Populates the Access table with generated records.
[ "Populates", "the", "Access", "table", "with", "generated", "records", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/examples/org/apache/hadoop/examples/DBCountPageView.java#L179-L236
119,387
facebookarchive/hadoop-20
src/examples/org/apache/hadoop/examples/DBCountPageView.java
DBCountPageView.verify
private boolean verify() throws SQLException { //check total num pageview String countAccessQuery = "SELECT COUNT(*) FROM Access"; String sumPageviewQuery = "SELECT SUM(pageview) FROM Pageview"; Statement st = null; ResultSet rs = null; try { st = connection.createStatement(); rs = s...
java
private boolean verify() throws SQLException { //check total num pageview String countAccessQuery = "SELECT COUNT(*) FROM Access"; String sumPageviewQuery = "SELECT SUM(pageview) FROM Pageview"; Statement st = null; ResultSet rs = null; try { st = connection.createStatement(); rs = s...
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Verifies the results are correct
[ "Verifies", "the", "results", "are", "correct" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/examples/org/apache/hadoop/examples/DBCountPageView.java#L239-L265
119,388
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java
VolumeMap.get
DatanodeBlockInfo get(int namespaceId, Block block) { checkBlock(block); NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return null; } return nm.getBlockInfo(block); }
java
DatanodeBlockInfo get(int namespaceId, Block block) { checkBlock(block); NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return null; } return nm.getBlockInfo(block); }
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Get the meta information of the replica that matches both block id and generation stamp @param namespaceId @param block block with its id as the key @return the replica's meta information @throws IllegalArgumentException if the input block or block pool is null
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java#L114-L121
119,389
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java
VolumeMap.remove
DatanodeBlockInfo remove(int namespaceId, Block block) { NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return null; } if (datasetDelta != null) { datasetDelta.removeBlock(namespaceId, block); } return nm.removeBlockInfo(block); }
java
DatanodeBlockInfo remove(int namespaceId, Block block) { NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return null; } if (datasetDelta != null) { datasetDelta.removeBlock(namespaceId, block); } return nm.removeBlockInfo(block); }
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Remove the replica's meta information from the map that matches the input block's id and generation stamp @param namespaceId @param block block with its id as the key @return the removed replica's meta information @throws IllegalArgumentException if the input block is null
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java#L169-L178
119,390
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java
VolumeMap.size
int size(int namespaceId) { NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return 0; } return nm.size(); }
java
int size(int namespaceId) { NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return 0; } return nm.size(); }
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Get the size of the map for given namespace @param namespaceId @return the number of replicas in the map
[ "Get", "the", "size", "of", "the", "map", "for", "given", "namespace" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java#L186-L192
119,391
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java
VolumeMap.getOngoingCreates
ActiveFile getOngoingCreates(int namespaceId, Block block) { checkBlock(block); NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return null; } return nm.getOngoingCreates(block); }
java
ActiveFile getOngoingCreates(int namespaceId, Block block) { checkBlock(block); NamespaceMap nm = getNamespaceMap(namespaceId); if (nm == null) { return null; } return nm.getOngoingCreates(block); }
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for ongoing creates
[ "for", "ongoing", "creates" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/VolumeMap.java#L209-L216
119,392
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/DefaultJobHistoryParser.java
DefaultJobHistoryParser.parseJobTasks
public static void parseJobTasks(String jobHistoryFile, JobHistory.JobInfo job, FileSystem fs) throws IOException { JobHistory.parseHistoryFromFS(jobHistoryFile, new JobTasksParseListener(job), fs); }
java
public static void parseJobTasks(String jobHistoryFile, JobHistory.JobInfo job, FileSystem fs) throws IOException { JobHistory.parseHistoryFromFS(jobHistoryFile, new JobTasksParseListener(job), fs); }
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Populates a JobInfo object from the job's history log file. @param jobHistoryFile history file for this job. @param job a precreated JobInfo object, should be non-null. @param fs FileSystem where historyFile is present. @throws IOException
[ "Populates", "a", "JobInfo", "object", "from", "the", "job", "s", "history", "log", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/DefaultJobHistoryParser.java#L47-L52
119,393
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/ConfigManager.java
ConfigManager.validateAllPolicies
private void validateAllPolicies(Collection<PolicyInfo> all) throws IOException, NumberFormatException { for (PolicyInfo pinfo: all) { Path srcPath = pinfo.getSrcPath(); if (srcPath == null) { throw new IOException("Unable to find srcPath in policy."); } if (pinfo.getProperty("r...
java
private void validateAllPolicies(Collection<PolicyInfo> all) throws IOException, NumberFormatException { for (PolicyInfo pinfo: all) { Path srcPath = pinfo.getSrcPath(); if (srcPath == null) { throw new IOException("Unable to find srcPath in policy."); } if (pinfo.getProperty("r...
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Validate a collection of policies
[ "Validate", "a", "collection", "of", "policies" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/ConfigManager.java#L317-L350
119,394
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/PurgeMonitor.java
PurgeMonitor.purgeDirectories
private void purgeDirectories(FileSystem fs, Path root) throws IOException { DirectoryTraversal traversal = DirectoryTraversal.directoryRetriever(Arrays.asList(root), fs, directoryTraversalThreads, directoryTraversalShuffle); String prefix = root.toUri().getPath(); FileStatus dir; ...
java
private void purgeDirectories(FileSystem fs, Path root) throws IOException { DirectoryTraversal traversal = DirectoryTraversal.directoryRetriever(Arrays.asList(root), fs, directoryTraversalThreads, directoryTraversalShuffle); String prefix = root.toUri().getPath(); FileStatus dir; ...
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Traverse the parity destination directory, removing directories that no longer existing in the source. @throws IOException
[ "Traverse", "the", "parity", "destination", "directory", "removing", "directories", "that", "no", "longer", "existing", "in", "the", "source", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/PurgeMonitor.java#L101-L125
119,395
facebookarchive/hadoop-20
src/contrib/raid/src/java/org/apache/hadoop/raid/PurgeMonitor.java
PurgeMonitor.existsBetterParityFile
private static boolean existsBetterParityFile( Codec codec, FileStatus srcStat, Configuration conf) throws IOException { for (Codec c : Codec.getCodecs()) { if (c.priority > codec.priority) { ParityFilePair ppair = ParityFilePair.getParityFile( c, srcStat, conf); if (ppair !=...
java
private static boolean existsBetterParityFile( Codec codec, FileStatus srcStat, Configuration conf) throws IOException { for (Codec c : Codec.getCodecs()) { if (c.priority > codec.priority) { ParityFilePair ppair = ParityFilePair.getParityFile( c, srcStat, conf); if (ppair !=...
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Is there a parity file which has a codec with higher priority?
[ "Is", "there", "a", "parity", "file", "which", "has", "a", "codec", "with", "higher", "priority?" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/raid/src/java/org/apache/hadoop/raid/PurgeMonitor.java#L406-L418
119,396
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/BytesWritable.java
BytesWritable.copyTo
public int copyTo(byte[] dest, int start) throws BufferTooSmallException { if (size > (dest.length - start)) { throw new BufferTooSmallException("size is " + size + ", buffer availabe size is " + (dest.length - start)); } if (size > 0) { System.arraycopy(bytes, 0, dest, start, si...
java
public int copyTo(byte[] dest, int start) throws BufferTooSmallException { if (size > (dest.length - start)) { throw new BufferTooSmallException("size is " + size + ", buffer availabe size is " + (dest.length - start)); } if (size > 0) { System.arraycopy(bytes, 0, dest, start, si...
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copy the byte array to the dest array, and return the number of bytes copied. @param dest @param maxLen @param start @return
[ "copy", "the", "byte", "array", "to", "the", "dest", "array", "and", "return", "the", "number", "of", "bytes", "copied", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/BytesWritable.java#L74-L84
119,397
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/BytesWritable.java
BytesWritable.setCapacity
public void setCapacity(int new_cap) { if (new_cap != getCapacity()) { byte[] new_data = new byte[new_cap]; if (new_cap < size) { size = new_cap; } if (size != 0) { System.arraycopy(bytes, 0, new_data, 0, size); } bytes = new_data; } }
java
public void setCapacity(int new_cap) { if (new_cap != getCapacity()) { byte[] new_data = new byte[new_cap]; if (new_cap < size) { size = new_cap; } if (size != 0) { System.arraycopy(bytes, 0, new_data, 0, size); } bytes = new_data; } }
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Change the capacity of the backing storage. The data is preserved. @param new_cap The new capacity in bytes.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/BytesWritable.java#L138-L149
119,398
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/BytesWritable.java
BytesWritable.set
public void set(byte[] newData, int offset, int length) { setSize(0); setSize(length); System.arraycopy(newData, offset, bytes, 0, size); }
java
public void set(byte[] newData, int offset, int length) { setSize(0); setSize(length); System.arraycopy(newData, offset, bytes, 0, size); }
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Set the value to a copy of the given byte range @param newData the new values to copy in @param offset the offset in newData to start at @param length the number of bytes to copy
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/BytesWritable.java#L165-L169
119,399
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/DataTransferHeaderOptions.java
DataTransferHeaderOptions.setBits
protected static long setBits(long num, int start, int len, long value){ // Get rid of illegal bits of value: value = value & ((1L<<len)-1); long val_mask = value << start; long zero_mask = ~( ((1L << len) -1) << start ); return ( num & zero_mask ) | val_mask; }
java
protected static long setBits(long num, int start, int len, long value){ // Get rid of illegal bits of value: value = value & ((1L<<len)-1); long val_mask = value << start; long zero_mask = ~( ((1L << len) -1) << start ); return ( num & zero_mask ) | val_mask; }
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Sets specific bits of a specific number. @param num The number to set bits. @param start Index of the rightmost bit we want to set. 0-based. @param len How many bits we want to set. @param value The value we want to set to. @return The number after changing specific bits.
[ "Sets", "specific", "bits", "of", "a", "specific", "number", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/DataTransferHeaderOptions.java#L136-L143