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118,200
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/protocol/ProtocolCompatible.java
ProtocolCompatible.isCompatibleClientProtocol
public static boolean isCompatibleClientProtocol( long clientVersion, long serverVersion) { return clientVersion == serverVersion || ( ( clientVersion == ClientProtocol.OPTIMIZE_FILE_STATUS_VERSION-1 || clientVersion == ClientProtocol.OPTIMIZE_FILE_STATUS_VERSION || ...
java
public static boolean isCompatibleClientProtocol( long clientVersion, long serverVersion) { return clientVersion == serverVersion || ( ( clientVersion == ClientProtocol.OPTIMIZE_FILE_STATUS_VERSION-1 || clientVersion == ClientProtocol.OPTIMIZE_FILE_STATUS_VERSION || ...
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Check if the client and NameNode have compatible ClientProtocol versions @param clientVersion the version of ClientProtocol that client has @param serverVersion the version of ClientProtocol that NameNode has @return true if two versions are compatible
[ "Check", "if", "the", "client", "and", "NameNode", "have", "compatible", "ClientProtocol", "versions" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/protocol/ProtocolCompatible.java#L16-L40
118,201
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/protocol/ProtocolCompatible.java
ProtocolCompatible.isCompatibleClientDatanodeProtocol
public static boolean isCompatibleClientDatanodeProtocol( long clientVersion, long serverVersion) { return clientVersion == serverVersion || ( ( clientVersion == ClientDatanodeProtocol.GET_BLOCKINFO_VERSION-1 || clientVersion == ClientDatanodeProtocol.GET_BLOCKINFO_VERSION...
java
public static boolean isCompatibleClientDatanodeProtocol( long clientVersion, long serverVersion) { return clientVersion == serverVersion || ( ( clientVersion == ClientDatanodeProtocol.GET_BLOCKINFO_VERSION-1 || clientVersion == ClientDatanodeProtocol.GET_BLOCKINFO_VERSION...
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Check if the client and DataNode have compatible ClientDataNodeProtocol versions @param clientVersion the version of ClientDatanodeProtocol that client has @param serverVersion the version of ClientDatanodeProtocol that DataNode has @return true if two versions are compatible
[ "Check", "if", "the", "client", "and", "DataNode", "have", "compatible", "ClientDataNodeProtocol", "versions" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/protocol/ProtocolCompatible.java#L49-L61
118,202
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/HighTideNode.java
HighTideNode.stop
public void stop() { if (stopRequested) { return; } stopRequested = true; running = false; if (server != null) server.stop(); if (triggerThread != null) triggerThread.interrupt(); if (fileFixer != null) fileFixer.shutdown(); if (fileFixerThread != null) fileFixerThread.interrupt();...
java
public void stop() { if (stopRequested) { return; } stopRequested = true; running = false; if (server != null) server.stop(); if (triggerThread != null) triggerThread.interrupt(); if (fileFixer != null) fileFixer.shutdown(); if (fileFixerThread != null) fileFixerThread.interrupt();...
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Stop all HighTideNode threads and wait for all to finish.
[ "Stop", "all", "HighTideNode", "threads", "and", "wait", "for", "all", "to", "finish", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/HighTideNode.java#L202-L215
118,203
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/HighTideNode.java
HighTideNode.shutdown
void shutdown() throws IOException, InterruptedException { configMgr.stopReload(); // stop config reloads fileFixer.shutdown(); // stop block fixer fileFixerThread.interrupt(); server.stop(); // stop http server }
java
void shutdown() throws IOException, InterruptedException { configMgr.stopReload(); // stop config reloads fileFixer.shutdown(); // stop block fixer fileFixerThread.interrupt(); server.stop(); // stop http server }
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Shuts down the HighTideNode
[ "Shuts", "down", "the", "HighTideNode" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/HighTideNode.java#L416-L421
118,204
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/HighTideNode.java
HighTideNode.createHighTideNode
public static HighTideNode createHighTideNode(String argv[], Configuration conf) throws IOException { if (conf == null) { conf = new Configuration(); } StartupOption startOpt = parseArguments(argv); if (startOpt == null) { printUsage(); return nu...
java
public static HighTideNode createHighTideNode(String argv[], Configuration conf) throws IOException { if (conf == null) { conf = new Configuration(); } StartupOption startOpt = parseArguments(argv); if (startOpt == null) { printUsage(); return nu...
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Create an instance of the HighTideNode
[ "Create", "an", "instance", "of", "the", "HighTideNode" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/hightidenode/HighTideNode.java#L471-L484
118,205
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.stat2Paths
public static Path[] stat2Paths(FileStatus[] stats) { if (stats == null) return null; Path[] ret = new Path[stats.length]; for (int i = 0; i < stats.length; ++i) { ret[i] = stats[i].getPath(); } return ret; }
java
public static Path[] stat2Paths(FileStatus[] stats) { if (stats == null) return null; Path[] ret = new Path[stats.length]; for (int i = 0; i < stats.length; ++i) { ret[i] = stats[i].getPath(); } return ret; }
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convert an array of FileStatus to an array of Path @param stats an array of FileStatus objects @return an array of paths corresponding to the input
[ "convert", "an", "array", "of", "FileStatus", "to", "an", "array", "of", "Path" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L53-L61
118,206
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.stat2Paths
public static Path[] stat2Paths(FileStatus[] stats, Path path) { if (stats == null) return new Path[]{path}; else return stat2Paths(stats); }
java
public static Path[] stat2Paths(FileStatus[] stats, Path path) { if (stats == null) return new Path[]{path}; else return stat2Paths(stats); }
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convert an array of FileStatus to an array of Path. If stats if null, return path @param stats an array of FileStatus objects @param path default path to return in stats is null @return an array of paths corresponding to the input
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L72-L77
118,207
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.fullyDelete
public static boolean fullyDelete(File dir) throws IOException { boolean deleted = true; File contents[] = dir.listFiles(); if (contents != null) { for (int i = 0; i < contents.length; i++) { if (contents[i].isFile()) { if (!contents[i].delete()) { deleted = false; ...
java
public static boolean fullyDelete(File dir) throws IOException { boolean deleted = true; File contents[] = dir.listFiles(); if (contents != null) { for (int i = 0; i < contents.length; i++) { if (contents[i].isFile()) { if (!contents[i].delete()) { deleted = false; ...
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Delete a directory and all its contents. If we return false, the directory may be partially-deleted.
[ "Delete", "a", "directory", "and", "all", "its", "contents", ".", "If", "we", "return", "false", "the", "directory", "may", "be", "partially", "-", "deleted", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L83-L110
118,208
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.fullyDelete
@Deprecated public static void fullyDelete(FileSystem fs, Path dir) throws IOException { fs.delete(dir, true); }
java
@Deprecated public static void fullyDelete(FileSystem fs, Path dir) throws IOException { fs.delete(dir, true); }
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Recursively delete a directory. @param fs {@link FileSystem} on which the path is present @param dir directory to recursively delete @throws IOException @deprecated Use {@link FileSystem#delete(Path, boolean)}
[ "Recursively", "delete", "a", "directory", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L120-L124
118,209
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.copy
public static boolean copy(FileSystem srcFS, Path src, FileSystem dstFS, Path dst, boolean deleteSource, Configuration conf) throws IOException { return copy(srcFS, src, dstFS, dst, deleteSource, true, conf); }
java
public static boolean copy(FileSystem srcFS, Path src, FileSystem dstFS, Path dst, boolean deleteSource, Configuration conf) throws IOException { return copy(srcFS, src, dstFS, dst, deleteSource, true, conf); }
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Copy files between FileSystems.
[ "Copy", "files", "between", "FileSystems", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L150-L155
118,210
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.copy
public static boolean copy(FileSystem srcFS, Path src, FileSystem dstFS, Path dst, boolean deleteSource, boolean overwrite, boolean validate, Configuration conf, IOThrottler...
java
public static boolean copy(FileSystem srcFS, Path src, FileSystem dstFS, Path dst, boolean deleteSource, boolean overwrite, boolean validate, Configuration conf, IOThrottler...
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Copy files between file systems @param srcFS source file system @param src source file @param dstFS destination file system @param dst destination file @param deleteSource if source should be deleted @param overwrite if destination could be overwritten if exists @param validate if source and destination should be valid...
[ "Copy", "files", "between", "file", "systems" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L293-L347
118,211
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.copy
public static boolean copy(File src, FileSystem dstFS, Path dst, boolean deleteSource, Configuration conf) throws IOException { dst = checkDest(src.getName(), dstFS, dst, false); if (src.isDirectory()) { if (!dstFS.mkd...
java
public static boolean copy(File src, FileSystem dstFS, Path dst, boolean deleteSource, Configuration conf) throws IOException { dst = checkDest(src.getName(), dstFS, dst, false); if (src.isDirectory()) { if (!dstFS.mkd...
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Copy local files to a FileSystem.
[ "Copy", "local", "files", "to", "a", "FileSystem", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L394-L430
118,212
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.copy
public static boolean copy(FileSystem srcFS, Path src, File dst, boolean deleteSource, Configuration conf) throws IOException { return copy(srcFS, src, dst, deleteSource, conf, false, 0L); }
java
public static boolean copy(FileSystem srcFS, Path src, File dst, boolean deleteSource, Configuration conf) throws IOException { return copy(srcFS, src, dst, deleteSource, conf, false, 0L); }
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Copy FileSystem files to local files.
[ "Copy", "FileSystem", "files", "to", "local", "files", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L433-L437
118,213
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.getDU
public static long getDU(File dir) { long size = 0; if (!dir.exists()) return 0; if (!dir.isDirectory()) { return dir.length(); } else { size = dir.length(); File[] allFiles = dir.listFiles(); for (int i = 0; i < allFiles.length; i++) { size = size + getDU(allFiles[...
java
public static long getDU(File dir) { long size = 0; if (!dir.exists()) return 0; if (!dir.isDirectory()) { return dir.length(); } else { size = dir.length(); File[] allFiles = dir.listFiles(); for (int i = 0; i < allFiles.length; i++) { size = size + getDU(allFiles[...
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Takes an input dir and returns the du on that local directory. Very basic implementation. @param dir The input dir to get the disk space of this local dir @return The total disk space of the input local directory
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L609-L623
118,214
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.unZip
public static void unZip(File inFile, File unzipDir) throws IOException { Enumeration<? extends ZipEntry> entries; ZipFile zipFile = new ZipFile(inFile); try { entries = zipFile.entries(); while (entries.hasMoreElements()) { ZipEntry entry = entries.nextElement(); if (!entry.isD...
java
public static void unZip(File inFile, File unzipDir) throws IOException { Enumeration<? extends ZipEntry> entries; ZipFile zipFile = new ZipFile(inFile); try { entries = zipFile.entries(); while (entries.hasMoreElements()) { ZipEntry entry = entries.nextElement(); if (!entry.isD...
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Given a File input it will unzip the file in a the unzip directory passed as the second parameter @param inFile The zip file as input @param unzipDir The unzip directory where to unzip the zip file. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L632-L668
118,215
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.unTar
public static void unTar(File inFile, File untarDir) throws IOException { if (!untarDir.mkdirs()) { if (!untarDir.isDirectory()) { throw new IOException("Mkdirs failed to create " + untarDir); } } StringBuffer untarCommand = new StringBuffer(); boolean gzipped = inFile.toString().en...
java
public static void unTar(File inFile, File untarDir) throws IOException { if (!untarDir.mkdirs()) { if (!untarDir.isDirectory()) { throw new IOException("Mkdirs failed to create " + untarDir); } } StringBuffer untarCommand = new StringBuffer(); boolean gzipped = inFile.toString().en...
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Given a Tar File as input it will untar the file in a the untar directory passed as the second parameter This utility will untar ".tar" files and ".tar.gz","tgz" files. @param inFile The tar file as input. @param untarDir The untar directory where to untar the tar file. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L680-L712
118,216
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.symLink
public static int symLink(String target, String linkname) throws IOException{ String cmd = "ln -s " + target + " " + linkname; Process p = Runtime.getRuntime().exec(cmd, null); int returnVal = -1; try{ returnVal = p.waitFor(); } catch(InterruptedException e){ //do nothing as of yet }...
java
public static int symLink(String target, String linkname) throws IOException{ String cmd = "ln -s " + target + " " + linkname; Process p = Runtime.getRuntime().exec(cmd, null); int returnVal = -1; try{ returnVal = p.waitFor(); } catch(InterruptedException e){ //do nothing as of yet }...
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Create a soft link between a src and destination only on a local disk. HDFS does not support this @param target the target for symlink @param linkname the symlink @return value returned by the command
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L721-L731
118,217
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.chmod
public static int chmod(String filename, String perm ) throws IOException, InterruptedException { return chmod(filename, perm, false); }
java
public static int chmod(String filename, String perm ) throws IOException, InterruptedException { return chmod(filename, perm, false); }
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Change the permissions on a filename. @param filename the name of the file to change @param perm the permission string @return the exit code from the command @throws IOException @throws InterruptedException
[ "Change", "the", "permissions", "on", "a", "filename", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L741-L744
118,218
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.createLocalTempFile
public static final File createLocalTempFile(final File basefile, final String prefix, final boolean isDeleteOnExit) throws IOException { File tmp = File.createTempFile(prefix + basefile.getName(), ...
java
public static final File createLocalTempFile(final File basefile, final String prefix, final boolean isDeleteOnExit) throws IOException { File tmp = File.createTempFile(prefix + basefile.getName(), ...
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Create a tmp file for a base file. @param basefile the base file of the tmp @param prefix file name prefix of tmp @param isDeleteOnExit if true, the tmp will be deleted when the VM exits @return a newly created tmp file @exception IOException If a tmp file cannot created @see java.io.File#createTempFile(String, String,...
[ "Create", "a", "tmp", "file", "for", "a", "base", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L788-L798
118,219
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.listStatusHelper
public static List<FileStatus> listStatusHelper(FileSystem fs, Path path, int depth, List<FileStatus> acc) throws IOException { FileStatus[] fileStatusResults = fs.listStatus(path); if (fileStatusResults == null) { throw new IOException("Path does not exist: " + path); } for (FileStatus f :...
java
public static List<FileStatus> listStatusHelper(FileSystem fs, Path path, int depth, List<FileStatus> acc) throws IOException { FileStatus[] fileStatusResults = fs.listStatus(path); if (fileStatusResults == null) { throw new IOException("Path does not exist: " + path); } for (FileStatus f :...
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Core logic for listStatus
[ "Core", "logic", "for", "listStatus" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L836-L857
118,220
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.listStatusForLeafDir
public static void listStatusForLeafDir(FileSystem fs, FileStatus pathStatus, List<FileStatus> acc) throws IOException { if (!pathStatus.isDir()) return; FileStatus[] fileStatusResults = fs.listStatus(pathStatus.getPath()); if (fileStatusResults == null) { throw new IOException("Path...
java
public static void listStatusForLeafDir(FileSystem fs, FileStatus pathStatus, List<FileStatus> acc) throws IOException { if (!pathStatus.isDir()) return; FileStatus[] fileStatusResults = fs.listStatus(pathStatus.getPath()); if (fileStatusResults == null) { throw new IOException("Path...
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pass in a directory path, get the list of statuses of leaf directories @param fs file system @param path path to scan @param acc the collection of file status of leaf directories @throws IOException if any error occurs
[ "pass", "in", "a", "directory", "path", "get", "the", "list", "of", "statuses", "of", "leaf", "directories" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L866-L886
118,221
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileUtil.java
FileUtil.replaceFile
public static void replaceFile(File src, File target) throws IOException { /* renameTo() has two limitations on Windows platform. * src.renameTo(target) fails if * 1) If target already exists OR * 2) If target is already open for reading/writing. */ if (!src.renameTo(target)) { int ret...
java
public static void replaceFile(File src, File target) throws IOException { /* renameTo() has two limitations on Windows platform. * src.renameTo(target) fails if * 1) If target already exists OR * 2) If target is already open for reading/writing. */ if (!src.renameTo(target)) { int ret...
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Move the src file to the name specified by target. @param src the source file @param target the target file @exception IOException If this operation fails
[ "Move", "the", "src", "file", "to", "the", "name", "specified", "by", "target", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileUtil.java#L915-L935
118,222
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/join/TupleWritable.java
TupleWritable.iterator
public Iterator<Writable> iterator() { final TupleWritable t = this; return new Iterator<Writable>() { long i = written; long last = 0L; public boolean hasNext() { return 0L != i; } public Writable next() { last = Long.lowestOneBit(i); if (0 == last) ...
java
public Iterator<Writable> iterator() { final TupleWritable t = this; return new Iterator<Writable>() { long i = written; long last = 0L; public boolean hasNext() { return 0L != i; } public Writable next() { last = Long.lowestOneBit(i); if (0 == last) ...
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Return an iterator over the elements in this tuple. Note that this doesn't flatten the tuple; one may receive tuples from this iterator.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/join/TupleWritable.java#L113-L136
118,223
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/IFileInputStream.java
IFileInputStream.close
@Override public void close() throws IOException { if (currentOffset < dataLength) { byte[] t = new byte[Math.min((int) (Integer.MAX_VALUE & (dataLength - currentOffset)), 32 * 1024)]; while (currentOffset < dataLength) { int n = read(t, 0, t.length); if (0 == n) { ...
java
@Override public void close() throws IOException { if (currentOffset < dataLength) { byte[] t = new byte[Math.min((int) (Integer.MAX_VALUE & (dataLength - currentOffset)), 32 * 1024)]; while (currentOffset < dataLength) { int n = read(t, 0, t.length); if (0 == n) { ...
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Close the input stream. Note that we need to read to the end of the stream to validate the checksum.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/IFileInputStream.java#L63-L76
118,224
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/IFileInputStream.java
IFileInputStream.read
public int read(byte[] b, int off, int len) throws IOException { if (currentOffset >= dataLength) { return -1; } return doRead(b,off,len); }
java
public int read(byte[] b, int off, int len) throws IOException { if (currentOffset >= dataLength) { return -1; } return doRead(b,off,len); }
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Read bytes from the stream. At EOF, checksum is validated, but the checksum bytes are not passed back in the buffer.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/IFileInputStream.java#L96-L103
118,225
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/IFileInputStream.java
IFileInputStream.readWithChecksum
public int readWithChecksum(byte[] b, int off, int len) throws IOException { if (currentOffset == length) { return -1; } else if (currentOffset >= dataLength) { // If the previous read drained off all the data, then just return // the checksum now. Note that checksum validation would have...
java
public int readWithChecksum(byte[] b, int off, int len) throws IOException { if (currentOffset == length) { return -1; } else if (currentOffset >= dataLength) { // If the previous read drained off all the data, then just return // the checksum now. Note that checksum validation would have...
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Read bytes from the stream. At EOF, checksum is validated and sent back as the last four bytes of the buffer. The caller should handle these bytes appropriately
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/IFileInputStream.java#L111-L140
118,226
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.scheduleTasks
private Map<String, List<ResourceGrant>> scheduleTasks() { fullyScheduled = false; long nodeWait = configManager.getLocalityWait(type, LocalityLevel.NODE); long rackWait = configManager.getLocalityWait(type, LocalityLevel.RACK); int tasksToSchedule = configManager.getGrantsPerIteration(); Map<String...
java
private Map<String, List<ResourceGrant>> scheduleTasks() { fullyScheduled = false; long nodeWait = configManager.getLocalityWait(type, LocalityLevel.NODE); long rackWait = configManager.getLocalityWait(type, LocalityLevel.RACK); int tasksToSchedule = configManager.getGrantsPerIteration(); Map<String...
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Match requests to nodes. @return The list of granted resources for each session
[ "Match", "requests", "to", "nodes", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L292-L315
118,227
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.scheduleOneTask
private ScheduledPair scheduleOneTask(long nodeWait, long rackWait) { if (!nodeManager.existRunnableNodes(type)) { return null; } Queue<PoolGroupSchedulable> poolGroupQueue = poolGroupManager.getScheduleQueue(); while (!poolGroupQueue.isEmpty()) { PoolGroupSchedulable poolGroup = po...
java
private ScheduledPair scheduleOneTask(long nodeWait, long rackWait) { if (!nodeManager.existRunnableNodes(type)) { return null; } Queue<PoolGroupSchedulable> poolGroupQueue = poolGroupManager.getScheduleQueue(); while (!poolGroupQueue.isEmpty()) { PoolGroupSchedulable poolGroup = po...
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Try match one request to one node @param nodeWait Time to wait for node locality @param rackWait Time to wait for rack locality @return The pair contains a session id and a granted resource or null when no task can be scheduled
[ "Try", "match", "one", "request", "to", "one", "node" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L325-L375
118,228
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.doMatch
private MatchedPair doMatch( SessionSchedulable schedulable, long now, long nodeWait, long rackWait) { schedulable.adjustLocalityRequirement(now, nodeWait, rackWait); for (LocalityLevel level : neededLocalityLevels) { if (level.isBetterThan(schedulable.getLastLocality())) { /** * Th...
java
private MatchedPair doMatch( SessionSchedulable schedulable, long now, long nodeWait, long rackWait) { schedulable.adjustLocalityRequirement(now, nodeWait, rackWait); for (LocalityLevel level : neededLocalityLevels) { if (level.isBetterThan(schedulable.getLastLocality())) { /** * Th...
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Find a node to give resources to this schedulable session. @param schedulable Given a resource to this schedulable @param now Current time @param nodeWait Time to wait for node locality @param rackWait Time to wait for rack locality @return Pair of resource request and node or null if no node can be found.
[ "Find", "a", "node", "to", "give", "resources", "to", "this", "schedulable", "session", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L386-L431
118,229
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.matchNodeForSession
private MatchedPair matchNodeForSession( Session session, LocalityLevel level) { Iterator<ResourceRequestInfo> pendingRequestIterator = session.getPendingRequestIteratorForType(type); while (pendingRequestIterator.hasNext()) { ResourceRequestInfo req = pendingRequestIterator.next(); Set<...
java
private MatchedPair matchNodeForSession( Session session, LocalityLevel level) { Iterator<ResourceRequestInfo> pendingRequestIterator = session.getPendingRequestIteratorForType(type); while (pendingRequestIterator.hasNext()) { ResourceRequestInfo req = pendingRequestIterator.next(); Set<...
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Find a matching pair of node, request by looping through the requests in the session, looking at the hosts in each request and making look-ups into the node manager. @param session The session @param level The locality level at which we are trying to schedule. @return A match if found, null if not.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L441-L467
118,230
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.matchSessionForNode
private MatchedPair matchSessionForNode( Session session, LocalityLevel level) { if (level == LocalityLevel.NODE || level == LocalityLevel.ANY) { Set<Map.Entry<String, NodeContainer>> hostNodesSet = nodeSnapshot.runnableHosts(); for (Map.Entry<String, NodeContainer> hostNodes : hostNodesSet)...
java
private MatchedPair matchSessionForNode( Session session, LocalityLevel level) { if (level == LocalityLevel.NODE || level == LocalityLevel.ANY) { Set<Map.Entry<String, NodeContainer>> hostNodesSet = nodeSnapshot.runnableHosts(); for (Map.Entry<String, NodeContainer> hostNodes : hostNodesSet)...
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Find a matching pair of node, request by looping through runnable nodes in the node snapshot created earlier. For each node, we make lookups in the session to find a suitable request. @param session The session @param level The locality level at which we are trying to schedule. @return A match if found, null if not.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L477-L521
118,231
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.needLocalityCheck
private boolean needLocalityCheck( LocalityLevel level, long nodeWait, long rackWait) { if (level == LocalityLevel.NODE) { return nodeWait != 0; } if (level == LocalityLevel.RACK) { return rackWait != 0; } return false; }
java
private boolean needLocalityCheck( LocalityLevel level, long nodeWait, long rackWait) { if (level == LocalityLevel.NODE) { return nodeWait != 0; } if (level == LocalityLevel.RACK) { return rackWait != 0; } return false; }
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If the locality wait time is zero, we don't need to check locality at all. @param level The level @param nodeWait The amount of time in msec to wait for node locality @param rackWait The amount of time in msec to wait for rack locality @return True if the locality check is needed, false otherwise.
[ "If", "the", "locality", "wait", "time", "is", "zero", "we", "don", "t", "need", "to", "check", "locality", "at", "all", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L530-L539
118,232
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.commitMatchedResource
private ResourceGrant commitMatchedResource( Session session, MatchedPair pair) { ResourceGrant grant = null; ResourceRequestInfo req = pair.req; ClusterNode node = pair.node; String appInfo = nodeManager.getAppInfo(node, type); if (appInfo != null) { if (nodeManager.addGrant(node, sessi...
java
private ResourceGrant commitMatchedResource( Session session, MatchedPair pair) { ResourceGrant grant = null; ResourceRequestInfo req = pair.req; ClusterNode node = pair.node; String appInfo = nodeManager.getAppInfo(node, type); if (appInfo != null) { if (nodeManager.addGrant(node, sessi...
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Given a session and match of request-node, perform a "transaction commit" @param session The session @param pair The pair of (request, node) @return The resource grant: non-null if the "commit" was successful, null otherwise.
[ "Given", "a", "session", "and", "match", "of", "request", "-", "node", "perform", "a", "transaction", "commit" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L548-L575
118,233
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.doPreemption
private void doPreemption() { long now = ClusterManager.clock.getTime(); if (now - lastPreemptionTime > PREEMPTION_PERIOD) { lastPreemptionTime = now; doPreemptionNow(); } }
java
private void doPreemption() { long now = ClusterManager.clock.getTime(); if (now - lastPreemptionTime > PREEMPTION_PERIOD) { lastPreemptionTime = now; doPreemptionNow(); } }
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Performs preemption if it has been long enough since the last round.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L629-L635
118,234
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.doPreemptionNow
private void doPreemptionNow() { int totalShare = nodeManager.getAllocatedCpuForType(type); poolGroupManager.distributeShare(totalShare); for (PoolGroupSchedulable poolGroup : poolGroupManager.getPoolGroups()) { poolGroup.distributeShare(); } int tasksToPreempt = countTasksShouldPreempt(); ...
java
private void doPreemptionNow() { int totalShare = nodeManager.getAllocatedCpuForType(type); poolGroupManager.distributeShare(totalShare); for (PoolGroupSchedulable poolGroup : poolGroupManager.getPoolGroups()) { poolGroup.distributeShare(); } int tasksToPreempt = countTasksShouldPreempt(); ...
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Performs the preemption.
[ "Performs", "the", "preemption", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L640-L651
118,235
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.preemptTasks
private void preemptTasks(int tasksToPreempt) { LOG.info("Start preempt " + tasksToPreempt + " for type " + type); long maxRunningTime = configManager.getPreemptedTaskMaxRunningTime(); int rounds = configManager.getPreemptionRounds(); while (tasksToPreempt > 0) { int preempted = preemptOneSession(...
java
private void preemptTasks(int tasksToPreempt) { LOG.info("Start preempt " + tasksToPreempt + " for type " + type); long maxRunningTime = configManager.getPreemptedTaskMaxRunningTime(); int rounds = configManager.getPreemptionRounds(); while (tasksToPreempt > 0) { int preempted = preemptOneSession(...
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Kill tasks from over-scheduled sessions @param tasksToPreempt The number of tasks should kill
[ "Kill", "tasks", "from", "over", "-", "scheduled", "sessions" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L657-L676
118,236
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.preemptOneSession
private int preemptOneSession(int maxToPreemt, long maxRunningTime) { Queue<PoolGroupSchedulable> poolGroupQueue = poolGroupManager.getPreemptQueue(); while (!poolGroupQueue.isEmpty()) { PoolGroupSchedulable poolGroup = poolGroupQueue.poll(); poolGroup.distributeShare(); Queue<PoolSche...
java
private int preemptOneSession(int maxToPreemt, long maxRunningTime) { Queue<PoolGroupSchedulable> poolGroupQueue = poolGroupManager.getPreemptQueue(); while (!poolGroupQueue.isEmpty()) { PoolGroupSchedulable poolGroup = poolGroupQueue.poll(); poolGroup.distributeShare(); Queue<PoolSche...
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Find the most over-scheduled session in the most over-scheduled pool. Kill tasks from this session. @param maxToPreemt The maximum number of tasks to kill @param maxRunningTime The killed task cannot be older than this time @return The number of tasks actually killed
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L685-L730
118,237
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.preemptSession
private int preemptSession(SessionSchedulable schedulable, int maxToPreemt, long maxRunningTime) throws InvalidSessionHandle { Session session = schedulable.getSession(); List<Integer> grantIds; synchronized (session) { grantIds = session.getGrantsToPreempt(maxToPreemt, maxRunningTime, type); ...
java
private int preemptSession(SessionSchedulable schedulable, int maxToPreemt, long maxRunningTime) throws InvalidSessionHandle { Session session = schedulable.getSession(); List<Integer> grantIds; synchronized (session) { grantIds = session.getGrantsToPreempt(maxToPreemt, maxRunningTime, type); ...
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Preempt a session. @param schedulable The session. @param maxToPreemt Maximum number of resources to preempt. @param maxRunningTime Running time threshold for preemption. @return The number of preempted resources. @throws InvalidSessionHandle
[ "Preempt", "a", "session", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L740-L759
118,238
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.countTasksShouldPreempt
private int countTasksShouldPreempt() { int tasksToPreempt = 0; long now = ClusterManager.clock.getTime(); for (PoolGroupSchedulable poolGroup : poolGroupManager.getPoolGroups()) { for (PoolSchedulable pool : poolGroup.getPools()) { if (pool.isStarving(now)) { tasksToPreempt += ...
java
private int countTasksShouldPreempt() { int tasksToPreempt = 0; long now = ClusterManager.clock.getTime(); for (PoolGroupSchedulable poolGroup : poolGroupManager.getPoolGroups()) { for (PoolSchedulable pool : poolGroup.getPools()) { if (pool.isStarving(now)) { tasksToPreempt += ...
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Count how many tasks should preempt for the starving pools @return The number of tasks should kill
[ "Count", "how", "many", "tasks", "should", "preempt", "for", "the", "starving", "pools" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L765-L777
118,239
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java
SchedulerForType.addSession
public void addSession(String id, Session session) { poolGroupManager.addSession(id, session); LOG.info("Session " + id + " has been added to " + type + " scheduler"); }
java
public void addSession(String id, Session session) { poolGroupManager.addSession(id, session); LOG.info("Session " + id + " has been added to " + type + " scheduler"); }
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Add a session to this scheduler. @param id The session ID. @param session The session.
[ "Add", "a", "session", "to", "this", "scheduler", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/SchedulerForType.java#L784-L788
118,240
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/MapFileOutputFormat.java
MapFileOutputFormat.getEntry
public static <K extends WritableComparable, V extends Writable> Writable getEntry(MapFile.Reader[] readers, Partitioner<K, V> partitioner, K key, V value) throws IOException { int part = partitioner.getPartition...
java
public static <K extends WritableComparable, V extends Writable> Writable getEntry(MapFile.Reader[] readers, Partitioner<K, V> partitioner, K key, V value) throws IOException { int part = partitioner.getPartition...
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Get an entry from output generated by this class.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/MapFileOutputFormat.java#L99-L106
118,241
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java
LogParser.monitor
public void monitor(LocalStore ls) { int in = 0; EventRecord er = null; Environment.logInfo("Started processing log..."); while ((er = getNext()) != null) { // Environment.logInfo("Processing log line:\t" + in++); if (er.isValid()) { ls.insert(er); } } PersistentState...
java
public void monitor(LocalStore ls) { int in = 0; EventRecord er = null; Environment.logInfo("Started processing log..."); while ((er = getNext()) != null) { // Environment.logInfo("Processing log line:\t" + in++); if (er.isValid()) { ls.insert(er); } } PersistentState...
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Insert all EventRecords that can be extracted for the represented hardware component into a LocalStore. @param ls the LocalStore into which the EventRecords are to be stored.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java#L106-L120
118,242
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java
LogParser.monitor
public EventRecord[] monitor() { ArrayList<EventRecord> recs = new ArrayList<EventRecord>(); EventRecord er; while ((er = getNext()) != null) recs.add(er); EventRecord[] T = new EventRecord[recs.size()]; return recs.toArray(T); }
java
public EventRecord[] monitor() { ArrayList<EventRecord> recs = new ArrayList<EventRecord>(); EventRecord er; while ((er = getNext()) != null) recs.add(er); EventRecord[] T = new EventRecord[recs.size()]; return recs.toArray(T); }
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Get an array of all EventRecords that can be extracted for the represented hardware component. @return The array of EventRecords
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java#L128-L139
118,243
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java
LogParser.getNext
public EventRecord getNext() { try { String line = reader.readLine(); if (line != null) { if (firstLine == null) firstLine = new String(line); offset += line.length() + 1; return parseLine(line); } } catch (IOException e) { e.printStackTrace(); } return null; }
java
public EventRecord getNext() { try { String line = reader.readLine(); if (line != null) { if (firstLine == null) firstLine = new String(line); offset += line.length() + 1; return parseLine(line); } } catch (IOException e) { e.printStackTrace(); } return null; }
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Continue parsing the log file until a valid log entry is identified. When one such entry is found, parse it and return a corresponding EventRecord. @return The EventRecord corresponding to the next log entry
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java#L148-L161
118,244
facebookarchive/hadoop-20
src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java
LogParser.checkForRotation
public void checkForRotation() { try { BufferedReader probe = new BufferedReader(new FileReader(file.getAbsoluteFile())); if (firstLine == null || (!firstLine.equals(probe.readLine()))) { probe.close(); // start reading the file from the beginning reader.close(); reader = new BufferedR...
java
public void checkForRotation() { try { BufferedReader probe = new BufferedReader(new FileReader(file.getAbsoluteFile())); if (firstLine == null || (!firstLine.equals(probe.readLine()))) { probe.close(); // start reading the file from the beginning reader.close(); reader = new BufferedR...
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Check whether the log file has been rotated. If so, start reading the file from the beginning.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/failmon/src/java/org/apache/hadoop/contrib/failmon/LogParser.java#L177-L191
118,245
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/mapred/MapOutputCorrectness.java
MapOutputCorrectness.getPartitionStatic
public static int getPartitionStatic(LongWritable key, LongWritable value, int numPartitions) { return (int) (Math.abs(key.get()) % numPartitions); }
java
public static int getPartitionStatic(LongWritable key, LongWritable value, int numPartitions) { return (int) (Math.abs(key.get()) % numPartitions); }
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Get a partition from the key only @param key Key to partition @param value Value (not used) @param numPartitions Number of partitions @return Destination partition
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/mapred/MapOutputCorrectness.java#L316-L319
118,246
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/mapred/MapOutputCorrectness.java
MapOutputCorrectness.getMapperId
private static int getMapperId(long key, int numReducers, int maxKeySpace) { key = key - getFirstSumKey(numReducers, maxKeySpace); return (int) (key / numReducers); }
java
private static int getMapperId(long key, int numReducers, int maxKeySpace) { key = key - getFirstSumKey(numReducers, maxKeySpace); return (int) (key / numReducers); }
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Which mapper sent this key sum? @param key Key to check @param numReducers Number of reducers @param maxKeySpace Max key space @return Mapper that send this key sum
[ "Which", "mapper", "sent", "this", "key", "sum?" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/mapred/MapOutputCorrectness.java#L339-L342
118,247
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/mapred/MapOutputCorrectness.java
MapOutputCorrectness.getAttemptId
public static int getAttemptId(Configuration conf) throws IllegalArgumentException { if (conf == null) { throw new NullPointerException("Conf is null"); } String taskId = conf.get("mapred.task.id"); if (taskId == null) { throw new IllegalArgumentException( "Configuration doe...
java
public static int getAttemptId(Configuration conf) throws IllegalArgumentException { if (conf == null) { throw new NullPointerException("Conf is null"); } String taskId = conf.get("mapred.task.id"); if (taskId == null) { throw new IllegalArgumentException( "Configuration doe...
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Get the attempt number @param conf Configuration @return Attempt number @throws IllegalArgumentException
[ "Get", "the", "attempt", "number" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/mapred/MapOutputCorrectness.java#L388-L409
118,248
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/protocol/DatanodeID.java
DatanodeID.updateRegInfo
public void updateRegInfo(DatanodeID nodeReg) { name = nodeReg.getName(); infoPort = nodeReg.getInfoPort(); ipcPort = nodeReg.getIpcPort(); // update any more fields added in future. }
java
public void updateRegInfo(DatanodeID nodeReg) { name = nodeReg.getName(); infoPort = nodeReg.getInfoPort(); ipcPort = nodeReg.getIpcPort(); // update any more fields added in future. }
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Update fields when a new registration request comes in. Note that this does not update storageID.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/protocol/DatanodeID.java#L164-L169
118,249
facebookarchive/hadoop-20
src/core/org/apache/hadoop/raid/ErasureCode.java
ErasureCode.decodeBulk
public void decodeBulk(byte[][] readBufs, byte[][] writeBufs, int[] erasedLocations) throws IOException { int[] tmpInput = new int[readBufs.length]; int[] tmpOutput = new int[erasedLocations.length]; int numBytes = readBufs[0].length; for (int idx = 0; idx < numBytes; idx++) { for (int i = ...
java
public void decodeBulk(byte[][] readBufs, byte[][] writeBufs, int[] erasedLocations) throws IOException { int[] tmpInput = new int[readBufs.length]; int[] tmpOutput = new int[erasedLocations.length]; int numBytes = readBufs[0].length; for (int idx = 0; idx < numBytes; idx++) { for (int i = ...
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This method would be overridden in the subclass, so that the subclass will have its own decodeBulk behavior.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/raid/ErasureCode.java#L150-L168
118,250
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/LexicographicalComparerHolder.java
LexicographicalComparerHolder.getBestComparer
static Comparer<byte[]> getBestComparer() { try { Class<?> theClass = Class.forName(UNSAFE_COMPARER_NAME); // yes, UnsafeComparer does implement Comparer<byte[]> @SuppressWarnings("unchecked") Comparer<byte[]> comparer = (Comparer<byte[]>) theClass .getEnumConstants()[0]; re...
java
static Comparer<byte[]> getBestComparer() { try { Class<?> theClass = Class.forName(UNSAFE_COMPARER_NAME); // yes, UnsafeComparer does implement Comparer<byte[]> @SuppressWarnings("unchecked") Comparer<byte[]> comparer = (Comparer<byte[]>) theClass .getEnumConstants()[0]; re...
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Returns the Unsafe-using Comparer, or falls back to the pure-Java implementation if unable to do so.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/LexicographicalComparerHolder.java#L79-L92
118,251
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/ContextFactory.java
ContextFactory.getAttributeNames
public String[] getAttributeNames() { String[] result = new String[attributeMap.size()]; int i = 0; // for (String attributeName : attributeMap.keySet()) { Iterator it = attributeMap.keySet().iterator(); while (it.hasNext()) { result[i++] = (String) it.next(); } return result; ...
java
public String[] getAttributeNames() { String[] result = new String[attributeMap.size()]; int i = 0; // for (String attributeName : attributeMap.keySet()) { Iterator it = attributeMap.keySet().iterator(); while (it.hasNext()) { result[i++] = (String) it.next(); } return result; ...
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Returns the names of all the factory's attributes. @return the attribute names
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/ContextFactory.java#L85-L94
118,252
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/ContextFactory.java
ContextFactory.getNullContext
public static synchronized MetricsContext getNullContext(String contextName) { MetricsContext nullContext = nullContextMap.get(contextName); if (nullContext == null) { nullContext = new NullContext(); nullContextMap.put(contextName, nullContext); } return nullContext; }
java
public static synchronized MetricsContext getNullContext(String contextName) { MetricsContext nullContext = nullContextMap.get(contextName); if (nullContext == null) { nullContext = new NullContext(); nullContextMap.put(contextName, nullContext); } return nullContext; }
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Returns a "null" context - one which does nothing.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/ContextFactory.java#L169-L176
118,253
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/shell/CommandFormat.java
CommandFormat.parse
public List<String> parse(String[] args, int pos) { List<String> parameters = new ArrayList<String>(); for(; pos < args.length; pos++) { if (args[pos].charAt(0) == '-' && args[pos].length() > 1) { String opt = args[pos].substring(1); if (options.containsKey(opt)) options.put(opt,...
java
public List<String> parse(String[] args, int pos) { List<String> parameters = new ArrayList<String>(); for(; pos < args.length; pos++) { if (args[pos].charAt(0) == '-' && args[pos].length() > 1) { String opt = args[pos].substring(1); if (options.containsKey(opt)) options.put(opt,...
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Parse parameters starting from the given position @param args an array of input arguments @param pos the position at which starts to parse @return a list of parameters
[ "Parse", "parameters", "starting", "from", "the", "given", "position" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/shell/CommandFormat.java#L48-L71
118,254
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/file/FileContext.java
FileContext.emitRecord
public void emitRecord(String contextName, String recordName, OutputRecord outRec) throws IOException { Calendar currentDate = Calendar.getInstance(); if (fileName != null) { if (currentDate.get(Calendar.DAY_OF_MONTH) != lastRecordDate.get(Calendar.DAY_OF_MONTH)) { // rotate to a new ...
java
public void emitRecord(String contextName, String recordName, OutputRecord outRec) throws IOException { Calendar currentDate = Calendar.getInstance(); if (fileName != null) { if (currentDate.get(Calendar.DAY_OF_MONTH) != lastRecordDate.get(Calendar.DAY_OF_MONTH)) { // rotate to a new ...
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Emits a metrics record to a file.
[ "Emits", "a", "metrics", "record", "to", "a", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/file/FileContext.java#L135-L171
118,255
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/BlockReader.java
BlockReader.adjustChecksumBytes
private void adjustChecksumBytes(int dataLen) { int requiredSize = ((dataLen + bytesPerChecksum - 1)/bytesPerChecksum)*checksumSize; if (checksumBytes == null || requiredSize > checksumBytes.capacity()) { checksumBytes = ByteBuffer.wrap(new byte[requiredSize]); } else { checksumBytes.clea...
java
private void adjustChecksumBytes(int dataLen) { int requiredSize = ((dataLen + bytesPerChecksum - 1)/bytesPerChecksum)*checksumSize; if (checksumBytes == null || requiredSize > checksumBytes.capacity()) { checksumBytes = ByteBuffer.wrap(new byte[requiredSize]); } else { checksumBytes.clea...
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Makes sure that checksumBytes has enough capacity and limit is set to the number of checksum bytes needed to be read.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/BlockReader.java#L240-L249
118,256
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/BlockReader.java
BlockReader.readBlockSizeInfo
private synchronized void readBlockSizeInfo() throws IOException { if (!transferBlockSize) { return; } blkLenInfoUpdated = true; isBlockFinalized = in.readBoolean(); updatedBlockLength = in.readLong(); if (dataTransferVersion >= DataTransferProtocol.READ_PROFILING_VERSION) { readData...
java
private synchronized void readBlockSizeInfo() throws IOException { if (!transferBlockSize) { return; } blkLenInfoUpdated = true; isBlockFinalized = in.readBoolean(); updatedBlockLength = in.readLong(); if (dataTransferVersion >= DataTransferProtocol.READ_PROFILING_VERSION) { readData...
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Read the block length information from data stream @throws IOException
[ "Read", "the", "block", "length", "information", "from", "data", "stream" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/BlockReader.java#L256-L271
118,257
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/BlockReader.java
BlockReader.newBlockReader
public static BlockReader newBlockReader( int dataTransferVersion, int namespaceId, Socket sock, String file, long blockId, long genStamp, long startOffset, long len, ...
java
public static BlockReader newBlockReader( int dataTransferVersion, int namespaceId, Socket sock, String file, long blockId, long genStamp, long startOffset, long len, ...
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Java Doc required
[ "Java", "Doc", "required" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/BlockReader.java#L535-L548
118,258
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskTracker.java
CoronaTaskTracker.createRunningJob
@Override protected RunningJob createRunningJob(JobID jobId, TaskInProgress tip) throws IOException { CoronaSessionInfo info = (CoronaSessionInfo)(tip.getExtensible()); // JobClient will be set by JobTrackerReporter thread later RunningJob rJob = new RunningJob(jobId, null, info); JobTrackerRepo...
java
@Override protected RunningJob createRunningJob(JobID jobId, TaskInProgress tip) throws IOException { CoronaSessionInfo info = (CoronaSessionInfo)(tip.getExtensible()); // JobClient will be set by JobTrackerReporter thread later RunningJob rJob = new RunningJob(jobId, null, info); JobTrackerRepo...
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Override this method to create the proper jobClient and the thread that sends jobTracker heartbeat.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskTracker.java#L750-L764
118,259
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskTracker.java
CoronaTaskTracker.purgeJob
@Override protected synchronized void purgeJob(KillJobAction action) throws IOException { JobID jobId = action.getJobID(); JobTrackerReporter reporter = jobTrackerReporters.remove(jobId); if (reporter != null) { reporter.shutdown(); } super.purgeJob(action); crReleaseManager.returnReleas...
java
@Override protected synchronized void purgeJob(KillJobAction action) throws IOException { JobID jobId = action.getJobID(); JobTrackerReporter reporter = jobTrackerReporters.remove(jobId); if (reporter != null) { reporter.shutdown(); } super.purgeJob(action); crReleaseManager.returnReleas...
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Override this to shutdown the heartbeat the the corresponding jobtracker
[ "Override", "this", "to", "shutdown", "the", "heartbeat", "the", "the", "corresponding", "jobtracker" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/CoronaTaskTracker.java#L769-L778
118,260
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/DefaultTaskController.java
DefaultTaskController.launchTaskJVM
void launchTaskJVM(TaskController.TaskControllerContext context) throws IOException { JvmEnv env = context.env; List<String> wrappedCommand = TaskLog.captureOutAndError(env.setup, env.vargs, env.stdout, env.stderr, env.logSize, true); ShellCommandExecu...
java
void launchTaskJVM(TaskController.TaskControllerContext context) throws IOException { JvmEnv env = context.env; List<String> wrappedCommand = TaskLog.captureOutAndError(env.setup, env.vargs, env.stdout, env.stderr, env.logSize, true); ShellCommandExecu...
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Launch a new JVM for the task. This method launches the new JVM for the task by executing the the JVM command using the {@link Shell.ShellCommandExecutor}
[ "Launch", "a", "new", "JVM", "for", "the", "task", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/DefaultTaskController.java#L51-L63
118,261
facebookarchive/hadoop-20
src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/dfs/DFSContentProvider.java
DFSContentProvider.refresh
void refresh() { // no display, nothing to update if (this.viewer == null) return; Display.getDefault().asyncExec(new Runnable() { public void run() { DFSContentProvider.this.viewer.refresh(); } }); }
java
void refresh() { // no display, nothing to update if (this.viewer == null) return; Display.getDefault().asyncExec(new Runnable() { public void run() { DFSContentProvider.this.viewer.refresh(); } }); }
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Ask the viewer for this content to refresh
[ "Ask", "the", "viewer", "for", "this", "content", "to", "refresh" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/dfs/DFSContentProvider.java#L210-L220
118,262
facebookarchive/hadoop-20
src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/dfs/DFSContentProvider.java
DFSContentProvider.refresh
void refresh(final DFSContent content) { if (this.sviewer != null) { Display.getDefault().asyncExec(new Runnable() { public void run() { DFSContentProvider.this.sviewer.refresh(content); } }); } else { refresh(); } }
java
void refresh(final DFSContent content) { if (this.sviewer != null) { Display.getDefault().asyncExec(new Runnable() { public void run() { DFSContentProvider.this.sviewer.refresh(content); } }); } else { refresh(); } }
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Ask the viewer to refresh a single element @param content what to refresh
[ "Ask", "the", "viewer", "to", "refresh", "a", "single", "element" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/eclipse-plugin/src/java/org/apache/hadoop/eclipse/dfs/DFSContentProvider.java#L227-L238
118,263
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLogServlet.java
TaskLogServlet.getTaskLogUrl
public static String getTaskLogUrl(String taskTrackerHostName, String httpPort, String taskAttemptID) { return ("http://" + taskTrackerHostName + ":" + httpPort + "/tasklog?taskid=" + taskAttemptID); }
java
public static String getTaskLogUrl(String taskTrackerHostName, String httpPort, String taskAttemptID) { return ("http://" + taskTrackerHostName + ":" + httpPort + "/tasklog?taskid=" + taskAttemptID); }
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Construct the taskLogUrl @param taskTrackerHostName @param httpPort @param taskAttemptID @return the taskLogUrl
[ "Construct", "the", "taskLogUrl" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLogServlet.java#L51-L55
118,264
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLogServlet.java
TaskLogServlet.findFirstQuotable
private static int findFirstQuotable(byte[] data, int offset, int end) { while (offset < end) { switch (data[offset]) { case '<': case '>': case '&': return offset; default: offset += 1; } } return offset; }
java
private static int findFirstQuotable(byte[] data, int offset, int end) { while (offset < end) { switch (data[offset]) { case '<': case '>': case '&': return offset; default: offset += 1; } } return offset; }
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Find the next quotable character in the given array. @param data the bytes to look in @param offset the first index to look in @param end the index after the last one to look in @return the index of the quotable character or end if none was found
[ "Find", "the", "next", "quotable", "character", "in", "the", "given", "array", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLogServlet.java#L64-L76
118,265
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.snapshot
public void snapshot() { snapshotPoolGroups = new ArrayList<PoolGroupSchedulable>(nameToPoolGroup.values()); for (PoolGroupSchedulable poolGroup : snapshotPoolGroups) { poolGroup.snapshot(); } scheduleQueue = null; preemptQueue = null; // Load the configured pools for stats and cm...
java
public void snapshot() { snapshotPoolGroups = new ArrayList<PoolGroupSchedulable>(nameToPoolGroup.values()); for (PoolGroupSchedulable poolGroup : snapshotPoolGroups) { poolGroup.snapshot(); } scheduleQueue = null; preemptQueue = null; // Load the configured pools for stats and cm...
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Take snapshots for all pools groups and sessions.
[ "Take", "snapshots", "for", "all", "pools", "groups", "and", "sessions", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L81-L99
118,266
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.getScheduleQueue
public Queue<PoolGroupSchedulable> getScheduleQueue() { if (scheduleQueue == null) { scheduleQueue = createPoolGroupQueue(ScheduleComparator.FAIR); } return scheduleQueue; }
java
public Queue<PoolGroupSchedulable> getScheduleQueue() { if (scheduleQueue == null) { scheduleQueue = createPoolGroupQueue(ScheduleComparator.FAIR); } return scheduleQueue; }
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Get the queue of pool groups sorted for scheduling @return the queue of pools sorted for scheduling
[ "Get", "the", "queue", "of", "pool", "groups", "sorted", "for", "scheduling" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L105-L110
118,267
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.getPreemptQueue
public Queue<PoolGroupSchedulable> getPreemptQueue() { if (preemptQueue == null) { preemptQueue = createPoolGroupQueue(ScheduleComparator.FAIR_PREEMPT); } return preemptQueue; }
java
public Queue<PoolGroupSchedulable> getPreemptQueue() { if (preemptQueue == null) { preemptQueue = createPoolGroupQueue(ScheduleComparator.FAIR_PREEMPT); } return preemptQueue; }
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Get the queue of the pool groups sorted for preemption @return the queue of pool sorted for preemption
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L116-L121
118,268
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.createPoolGroupQueue
private Queue<PoolGroupSchedulable> createPoolGroupQueue( ScheduleComparator comparator) { int initCapacity = snapshotPoolGroups.size() == 0 ? 1 : snapshotPoolGroups.size(); Queue<PoolGroupSchedulable> poolGroupQueue = new PriorityQueue<PoolGroupSchedulable>(initCapacity, comparator); ...
java
private Queue<PoolGroupSchedulable> createPoolGroupQueue( ScheduleComparator comparator) { int initCapacity = snapshotPoolGroups.size() == 0 ? 1 : snapshotPoolGroups.size(); Queue<PoolGroupSchedulable> poolGroupQueue = new PriorityQueue<PoolGroupSchedulable>(initCapacity, comparator); ...
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Put all the pool groups into the priority queue sorted by a comparator @param comparator the comparator to sort all the pool groups in the queue @return the queue of the pool groups sorted by a comparator
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L128-L136
118,269
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.addSession
public void addSession(String id, Session session) { PoolInfo poolInfo = getPoolInfo(session); LOG.info("Session " + id + " added to pool info " + poolInfo + " (originally " + session.getInfo().getPoolInfoStrings() +") for " + type); getPoolSchedulable(poolInfo).addSession(id, session); }
java
public void addSession(String id, Session session) { PoolInfo poolInfo = getPoolInfo(session); LOG.info("Session " + id + " added to pool info " + poolInfo + " (originally " + session.getInfo().getPoolInfoStrings() +") for " + type); getPoolSchedulable(poolInfo).addSession(id, session); }
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Add a session to the scheduler @param id the id of the session @param session the session object to add
[ "Add", "a", "session", "to", "the", "scheduler" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L143-L148
118,270
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.checkPoolInfoIfStrict
public static void checkPoolInfoIfStrict(PoolInfo poolInfo, ConfigManager configManager, CoronaConf conf) throws InvalidSessionHandle { if (!conf.onlyAllowConfiguredPools()) { return; } // When only allowing c...
java
public static void checkPoolInfoIfStrict(PoolInfo poolInfo, ConfigManager configManager, CoronaConf conf) throws InvalidSessionHandle { if (!conf.onlyAllowConfiguredPools()) { return; } // When only allowing c...
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If the cluster is set to configured pools only, do not allow unset pool information or pool info that doesn't match a valid pool info. Throws an InvalidSessionHandle exception in either of the failure cases. @param poolInfo Pool info to check @param configManager Configuration to check @param conf Corona configuratio...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L160-L201
118,271
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.getPoolInfo
public static PoolInfo getPoolInfo( Session session) { PoolInfo poolInfo = session.getPoolInfo(); // If there is no explicit pool info set, take user name. if (poolInfo == null || poolInfo.getPoolName().equals("")) { poolInfo = new PoolInfo(DEFAULT_POOL_GROUP, session.getUserId()); } i...
java
public static PoolInfo getPoolInfo( Session session) { PoolInfo poolInfo = session.getPoolInfo(); // If there is no explicit pool info set, take user name. if (poolInfo == null || poolInfo.getPoolName().equals("")) { poolInfo = new PoolInfo(DEFAULT_POOL_GROUP, session.getUserId()); } i...
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Get the pool name for a given session, using the default pool information if the name is illegal. Redirection should happen prior to this. @param session the session to get the pool name for @return the pool info that the session is running in
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L211-L226
118,272
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java
PoolGroupManager.getPoolSchedulable
private PoolSchedulable getPoolSchedulable(PoolInfo poolInfo) { PoolGroupSchedulable poolGroup = nameToPoolGroup.get(poolInfo.getPoolGroupName()); if (poolGroup == null) { poolGroup = new PoolGroupSchedulable( poolInfo.getPoolGroupName(), type, configManager); PoolGroupSchedulable ...
java
private PoolSchedulable getPoolSchedulable(PoolInfo poolInfo) { PoolGroupSchedulable poolGroup = nameToPoolGroup.get(poolInfo.getPoolGroupName()); if (poolGroup == null) { poolGroup = new PoolGroupSchedulable( poolInfo.getPoolGroupName(), type, configManager); PoolGroupSchedulable ...
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Get the Schedulable representing the pool with a given name If it doesn't exist - create it and add it to the list @param poolInfo Group and pool names @return the PoolSchedulable for a pool with a given name
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/PoolGroupManager.java#L235-L249
118,273
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/nativeio/NativeIO.java
NativeIO.ioprioGetIfPossible
public static int ioprioGetIfPossible() throws IOException { if (nativeLoaded && ioprioPossible) { try { return ioprio_get(); } catch (UnsupportedOperationException uoe) { LOG.warn("ioprioGetIfPossible() failed", uoe); ioprioPossible = false; } catch (UnsatisfiedLinkError u...
java
public static int ioprioGetIfPossible() throws IOException { if (nativeLoaded && ioprioPossible) { try { return ioprio_get(); } catch (UnsupportedOperationException uoe) { LOG.warn("ioprioGetIfPossible() failed", uoe); ioprioPossible = false; } catch (UnsatisfiedLinkError u...
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Call ioprio_get for this thread. @throws NativeIOException if there is an error with the syscall @return -1 on failure, ioprio value on success.
[ "Call", "ioprio_get", "for", "this", "thread", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/nativeio/NativeIO.java#L242-L258
118,274
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/nativeio/NativeIO.java
NativeIO.posixFadviseIfPossible
public static void posixFadviseIfPossible( FileDescriptor fd, long offset, long len, int flags) throws NativeIOException { if (nativeLoaded && fadvisePossible) { try { posix_fadvise(fd, offset, len, flags); InjectionHandler.processEvent( InjectionEventCore.NATIVEIO_POSI...
java
public static void posixFadviseIfPossible( FileDescriptor fd, long offset, long len, int flags) throws NativeIOException { if (nativeLoaded && fadvisePossible) { try { posix_fadvise(fd, offset, len, flags); InjectionHandler.processEvent( InjectionEventCore.NATIVEIO_POSI...
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Call posix_fadvise on the given file descriptor. See the manpage for this syscall for more information. On systems where this call is not available, does nothing. @throws NativeIOException if there is an error with the syscall
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/nativeio/NativeIO.java#L330-L349
118,275
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/nativeio/NativeIO.java
NativeIO.syncFileRangeIfPossible
public static void syncFileRangeIfPossible( FileDescriptor fd, long offset, long nbytes, int flags) throws NativeIOException { InjectionHandler.processEvent(InjectionEventCore.NATIVEIO_SYNC_FILE_RANGE, flags); if (nativeLoaded && syncFileRangePossible) { try { sync_file_range(f...
java
public static void syncFileRangeIfPossible( FileDescriptor fd, long offset, long nbytes, int flags) throws NativeIOException { InjectionHandler.processEvent(InjectionEventCore.NATIVEIO_SYNC_FILE_RANGE, flags); if (nativeLoaded && syncFileRangePossible) { try { sync_file_range(f...
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Call sync_file_range on the given file descriptor. See the manpage for this syscall for more information. On systems where this call is not available, does nothing. @throws NativeIOException if there is an error with the syscall
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/nativeio/NativeIO.java#L358-L378
118,276
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/CreateOptions.java
CreateOptions.writeOptions
public static WriteOptions writeOptions(Boolean overwrite, Boolean forceSync){ WriteOptions wo = new WriteOptions(); if (overwrite != null) wo.setOverwrite(overwrite); if (forceSync != null) wo.setForcesync(forceSync); return wo; }
java
public static WriteOptions writeOptions(Boolean overwrite, Boolean forceSync){ WriteOptions wo = new WriteOptions(); if (overwrite != null) wo.setOverwrite(overwrite); if (forceSync != null) wo.setForcesync(forceSync); return wo; }
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Creates a WriteOptions from given overwrite and forceSync values. If null passed, it will use their default value.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/CreateOptions.java#L39-L46
118,277
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/CreateOptions.java
CreateOptions.getOpt
public static CreateOptions getOpt(Class<? extends CreateOptions> theClass, CreateOptions... opts) { if (opts == null) return null; CreateOptions result = null; for (int i = 0; i < opts.length; ++i) { if (opts[i].getClass() == theClass) { if (result != null) throw new IllegalAr...
java
public static CreateOptions getOpt(Class<? extends CreateOptions> theClass, CreateOptions... opts) { if (opts == null) return null; CreateOptions result = null; for (int i = 0; i < opts.length; ++i) { if (opts[i].getClass() == theClass) { if (result != null) throw new IllegalAr...
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Get an option of desired type @param theClass is the desired class of the opt @param opts - not null - at least one opt must be passed @return an opt from one of the opts of type theClass. returns null if there isn't any
[ "Get", "an", "option", "of", "desired", "type" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/CreateOptions.java#L145-L157
118,278
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/CreateOptions.java
CreateOptions.setOpt
public static <T extends CreateOptions> CreateOptions[] setOpt(T newValue, CreateOptions ... opts) { boolean alreadyInOpts = false; if (opts != null) { for (int i = 0; i < opts.length; ++i) { if (opts[i].getClass() == newValue.getClass()) { if (alreadyInOpts) throw new Illega...
java
public static <T extends CreateOptions> CreateOptions[] setOpt(T newValue, CreateOptions ... opts) { boolean alreadyInOpts = false; if (opts != null) { for (int i = 0; i < opts.length; ++i) { if (opts[i].getClass() == newValue.getClass()) { if (alreadyInOpts) throw new Illega...
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set an option @param newValue the option to be set @param opts - the option is set into this array of opts @return updated CreateOpts[] == opts + newValue @throws IllegalArgumentException If two options with the same type as newValue exists change will apply to one of them, and an Exception will be thrown.
[ "set", "an", "option" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/CreateOptions.java#L169-L189
118,279
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java
BlockReceiver.handleMirrorOutError
private void handleMirrorOutError(IOException ioe) throws IOException { LOG.info(datanode.getDatanodeInfo() + ": Exception writing block " + block + " namespaceId: " + namespaceId + " to mirror " + mirrorAddr + "\n" + StringUtils.stringifyException(ioe)); if (Thread.interrupted()) { //...
java
private void handleMirrorOutError(IOException ioe) throws IOException { LOG.info(datanode.getDatanodeInfo() + ": Exception writing block " + block + " namespaceId: " + namespaceId + " to mirror " + mirrorAddr + "\n" + StringUtils.stringifyException(ioe)); if (Thread.interrupted()) { //...
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While writing to mirrorOut, failure to write to mirror should not affect this datanode.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java#L218-L230
118,280
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java
BlockReceiver.verifyChunks
private void verifyChunks( byte[] dataBuf, int dataOff, int len, byte[] checksumBuf, int checksumOff, int firstChunkOffset, int packetVersion) throws IOException { int chunkOffset = firstChunkOffset; while (len > 0) { ...
java
private void verifyChunks( byte[] dataBuf, int dataOff, int len, byte[] checksumBuf, int checksumOff, int firstChunkOffset, int packetVersion) throws IOException { int chunkOffset = firstChunkOffset; while (len > 0) { ...
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Verify multiple CRC chunks.
[ "Verify", "multiple", "CRC", "chunks", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java#L235-L277
118,281
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/common/Util.java
Util.stringAsURI
public static URI stringAsURI(String s) throws IOException { URI u = null; // try to make a URI try { u = new URI(s); } catch (URISyntaxException e){ LOG.error("Syntax error in URI " + s + ". Please check hdfs configuration.", e); } // if URI is null or scheme is undefined...
java
public static URI stringAsURI(String s) throws IOException { URI u = null; // try to make a URI try { u = new URI(s); } catch (URISyntaxException e){ LOG.error("Syntax error in URI " + s + ". Please check hdfs configuration.", e); } // if URI is null or scheme is undefined...
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Interprets the passed string as a URI. In case of error it assumes the specified string is a file. @param s the string to interpret @return the resulting URI @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/common/Util.java#L49-L66
118,282
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/common/Util.java
Util.stringCollectionAsURIs
public static Collection<URI> stringCollectionAsURIs( Collection<String> names) { Collection<URI> uris = new ArrayList<URI>(names.size()); for(String name : names) { try { uris.add(stringAsURI(name)); } catch (IOException e) { LOG.error("Error while ...
java
public static Collection<URI> stringCollectionAsURIs( Collection<String> names) { Collection<URI> uris = new ArrayList<URI>(names.size()); for(String name : names) { try { uris.add(stringAsURI(name)); } catch (IOException e) { LOG.error("Error while ...
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Converts a collection of strings into a collection of URIs. @param names collection of strings to convert to URIs @return collection of URIs
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/common/Util.java#L84-L95
118,283
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLog.java
TaskLog.getRealTaskLogFilePath
static String getRealTaskLogFilePath(String location, LogName filter) throws IOException { return FileUtil.makeShellPath(new File(getBaseDir(location), filter.toString())); }
java
static String getRealTaskLogFilePath(String location, LogName filter) throws IOException { return FileUtil.makeShellPath(new File(getBaseDir(location), filter.toString())); }
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Get the real task-log file-path @param location Location of the log-file. This should point to an attempt-directory. @param filter @return @throws IOException
[ "Get", "the", "real", "task", "-", "log", "file", "-", "path" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLog.java#L115-L119
118,284
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLog.java
TaskLog.captureOutAndError
public static List<String> captureOutAndError(List<String> cmd, File stdoutFilename, File stderrFilename, long tailLength ) thro...
java
public static List<String> captureOutAndError(List<String> cmd, File stdoutFilename, File stderrFilename, long tailLength ) thro...
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Wrap a command in a shell to capture stdout and stderr to files. If the tailLength is 0, the entire output will be saved. @param cmd The command and the arguments that should be run @param stdoutFilename The filename that stdout should be saved to @param stderrFilename The filename that stderr should be saved to @param...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLog.java#L506-L513
118,285
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLog.java
TaskLog.captureOutAndError
public static List<String> captureOutAndError(List<String> setup, List<String> cmd, File stdoutFilename, File stderrFilename, long tailLength, boolean useSetsid ) throws IOException { List<String> result = new ArrayList<String>(3); result.add(bashCommand); result.add("-c"...
java
public static List<String> captureOutAndError(List<String> setup, List<String> cmd, File stdoutFilename, File stderrFilename, long tailLength, boolean useSetsid ) throws IOException { List<String> result = new ArrayList<String>(3); result.add(bashCommand); result.add("-c"...
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Wrap a command in a shell to capture stdout and stderr to files. Setup commands such as setting memory limit can be passed which will be executed before exec. If the tailLength is 0, the entire output will be saved. @param setup The setup commands for the execed process. @param cmd The command and the arguments that sh...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLog.java#L605-L621
118,286
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLog.java
TaskLog.addCommand
public static String addCommand(List<String> cmd, boolean isExecutable) throws IOException { StringBuffer command = new StringBuffer(); for(String s: cmd) { command.append('\''); if (isExecutable) { // the executable name needs to be expressed as a shell path for the // shell to ...
java
public static String addCommand(List<String> cmd, boolean isExecutable) throws IOException { StringBuffer command = new StringBuffer(); for(String s: cmd) { command.append('\''); if (isExecutable) { // the executable name needs to be expressed as a shell path for the // shell to ...
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Add quotes to each of the command strings and return as a single string @param cmd The command to be quoted @param isExecutable makes shell path if the first argument is executable @return returns The quoted string. @throws IOException
[ "Add", "quotes", "to", "each", "of", "the", "command", "strings", "and", "return", "as", "a", "single", "string" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLog.java#L685-L702
118,287
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskLog.java
TaskLog.captureDebugOut
public static List<String> captureDebugOut(List<String> cmd, File debugoutFilename ) throws IOException { String debugout = FileUtil.makeShellPath(debugoutFilename); List<String> result = new ArrayList<String>(3); resu...
java
public static List<String> captureDebugOut(List<String> cmd, File debugoutFilename ) throws IOException { String debugout = FileUtil.makeShellPath(debugoutFilename); List<String> result = new ArrayList<String>(3); resu...
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Wrap a command in a shell to capture debug script's stdout and stderr to debugout. @param cmd The command and the arguments that should be run @param debugoutFilename The filename that stdout and stderr should be saved to. @return the modified command that should be run @throws IOException
[ "Wrap", "a", "command", "in", "a", "shell", "to", "capture", "debug", "script", "s", "stdout", "and", "stderr", "to", "debugout", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskLog.java#L713-L740
118,288
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/DU.java
DU.start
public void start() { //only start the thread if the interval is sane if(refreshInterval > 0) { refreshUsed = new Thread(new DURefreshThread(), "refreshUsed-"+dirPath); refreshUsed.setDaemon(true); refreshUsed.start(); } }
java
public void start() { //only start the thread if the interval is sane if(refreshInterval > 0) { refreshUsed = new Thread(new DURefreshThread(), "refreshUsed-"+dirPath); refreshUsed.setDaemon(true); refreshUsed.start(); } }
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Start the disk usage checking thread.
[ "Start", "the", "disk", "usage", "checking", "thread", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/DU.java#L255-L263
118,289
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/DU.java
DU.shutdown
public void shutdown() { this.shouldRun = false; this.namespaceSliceDUMap.clear(); if(this.refreshUsed != null) { this.refreshUsed.interrupt(); try { this.refreshUsed.join(); this.refreshUsed = null; } catch (InterruptedException ie) { } } }
java
public void shutdown() { this.shouldRun = false; this.namespaceSliceDUMap.clear(); if(this.refreshUsed != null) { this.refreshUsed.interrupt(); try { this.refreshUsed.join(); this.refreshUsed = null; } catch (InterruptedException ie) { } } }
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Shut down the refreshing thread.
[ "Shut", "down", "the", "refreshing", "thread", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/DU.java#L268-L279
118,290
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaClient.java
CoronaClient.killSession
private int killSession(String sessionId)throws IOException { try { System.out.printf("Killing %s", sessionId); ClusterManagerService.Client client = getCMSClient(); try { client.killSession(sessionId); } catch (SafeModeException e) { throw new IOException( "Cannot ...
java
private int killSession(String sessionId)throws IOException { try { System.out.printf("Killing %s", sessionId); ClusterManagerService.Client client = getCMSClient(); try { client.killSession(sessionId); } catch (SafeModeException e) { throw new IOException( "Cannot ...
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Tells the cluster manager to kill the session with a given id @param sessionId the id of the session to kill @return 0 in case of success, non zero value on error @throws IOException
[ "Tells", "the", "cluster", "manager", "to", "kill", "the", "session", "with", "a", "given", "id" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaClient.java#L98-L113
118,291
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaClient.java
CoronaClient.listSessions
private int listSessions() throws IOException { try { ClusterManagerService.Client client = getCMSClient(); List<RunningSession> sessions; try { sessions = client.getSessions(); } catch (SafeModeException e) { throw new IOException( "Cannot list sessions, ClusterMan...
java
private int listSessions() throws IOException { try { ClusterManagerService.Client client = getCMSClient(); List<RunningSession> sessions; try { sessions = client.getSessions(); } catch (SafeModeException e) { throw new IOException( "Cannot list sessions, ClusterMan...
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Gets a list of the sessions from the cluster manager and outputs them on the console @return 0 in case of success, non zero value on error @throws IOException
[ "Gets", "a", "list", "of", "the", "sessions", "from", "the", "cluster", "manager", "and", "outputs", "them", "on", "the", "console" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaClient.java#L133-L175
118,292
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsVisitorFactory.java
EditsVisitorFactory.getEditsVisitor
static public EditsVisitor getEditsVisitor(String filename, String processor, Tokenizer tokenizer, boolean printToScreen) throws IOException { if(processor.toLowerCase().equals("xml")) { return new XmlEditsVisitor(filename, tokenizer, printToScreen); } else if(processor.toLowerCase().equals("...
java
static public EditsVisitor getEditsVisitor(String filename, String processor, Tokenizer tokenizer, boolean printToScreen) throws IOException { if(processor.toLowerCase().equals("xml")) { return new XmlEditsVisitor(filename, tokenizer, printToScreen); } else if(processor.toLowerCase().equals("...
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Factory function that creates an EditsVisitor object @param filename output filename @param tokenizer input tokenizer @return EditsVisitor for appropriate output format (binary, XML etc.)
[ "Factory", "function", "that", "creates", "an", "EditsVisitor", "object" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/EditsVisitorFactory.java#L36-L51
118,293
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.runCommand
private void runCommand(TaskCommands taskCommand, String user, List<String> cmdArgs, File workDir, Map<String, String> env) throws IOException { ShellCommandExecutor shExec = buildTaskControllerExecutor(taskCommand, user, cmdArgs, workDir, env); try { shExec.execute(); } catch (Ex...
java
private void runCommand(TaskCommands taskCommand, String user, List<String> cmdArgs, File workDir, Map<String, String> env) throws IOException { ShellCommandExecutor shExec = buildTaskControllerExecutor(taskCommand, user, cmdArgs, workDir, env); try { shExec.execute(); } catch (Ex...
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Helper method that runs a LinuxTaskController command @param taskCommand @param user @param cmdArgs @param env @throws IOException
[ "Helper", "method", "that", "runs", "a", "LinuxTaskController", "command" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L182-L205
118,294
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.getJobId
private String getJobId(TaskControllerContext context) { String taskId = context.task.getTaskID().toString(); TaskAttemptID tId = TaskAttemptID.forName(taskId); String jobId = tId.getJobID().toString(); return jobId; }
java
private String getJobId(TaskControllerContext context) { String taskId = context.task.getTaskID().toString(); TaskAttemptID tId = TaskAttemptID.forName(taskId); String jobId = tId.getJobID().toString(); return jobId; }
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get the Job ID from the information in the TaskControllerContext
[ "get", "the", "Job", "ID", "from", "the", "information", "in", "the", "TaskControllerContext" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L299-L304
118,295
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.getDirectoryChosenForTask
private String getDirectoryChosenForTask(File directory, TaskControllerContext context) { String jobId = getJobId(context); String taskId = context.task.getTaskID().toString(); for (String dir : mapredLocalDirs) { File mapredDir = new File(dir); File taskDir = new File(mapredDir, TaskTrack...
java
private String getDirectoryChosenForTask(File directory, TaskControllerContext context) { String jobId = getJobId(context); String taskId = context.task.getTaskID().toString(); for (String dir : mapredLocalDirs) { File mapredDir = new File(dir); File taskDir = new File(mapredDir, TaskTrack...
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this task.
[ "this", "task", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L309-L325
118,296
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.setupTaskLogFileAccess
private void setupTaskLogFileAccess(TaskControllerContext context) { TaskAttemptID taskId = context.task.getTaskID(); File f = TaskLog.getTaskLogFile(taskId, TaskLog.LogName.SYSLOG); String taskAttemptLogDir = f.getParentFile().getAbsolutePath(); changeDirectoryPermissions(taskAttemptLogDir, FILE_PERMIS...
java
private void setupTaskLogFileAccess(TaskControllerContext context) { TaskAttemptID taskId = context.task.getTaskID(); File f = TaskLog.getTaskLogFile(taskId, TaskLog.LogName.SYSLOG); String taskAttemptLogDir = f.getParentFile().getAbsolutePath(); changeDirectoryPermissions(taskAttemptLogDir, FILE_PERMIS...
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the task log directory
[ "the", "task", "log", "directory" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L350-L355
118,297
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.setupTaskCacheFileAccess
private void setupTaskCacheFileAccess(TaskControllerContext context) { String taskId = context.task.getTaskID().toString(); JobID jobId = JobID.forName(getJobId(context)); //Change permission for the task across all the disks for(String localDir : mapredLocalDirs) { File f = new File(localDir); ...
java
private void setupTaskCacheFileAccess(TaskControllerContext context) { String taskId = context.task.getTaskID().toString(); JobID jobId = JobID.forName(getJobId(context)); //Change permission for the task across all the disks for(String localDir : mapredLocalDirs) { File f = new File(localDir); ...
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the files under the job and task cache directories
[ "the", "files", "under", "the", "job", "and", "task", "cache", "directories" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L359-L372
118,298
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.changeDirectoryPermissions
private void changeDirectoryPermissions(String dir, String mode, boolean isRecursive) { int ret = 0; try { ret = FileUtil.chmod(dir, mode, isRecursive); } catch (Exception e) { LOG.warn("Exception in changing permissions for directory " + dir + ...
java
private void changeDirectoryPermissions(String dir, String mode, boolean isRecursive) { int ret = 0; try { ret = FileUtil.chmod(dir, mode, isRecursive); } catch (Exception e) { LOG.warn("Exception in changing permissions for directory " + dir + ...
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convenience method to execute chmod.
[ "convenience", "method", "to", "execute", "chmod", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L375-L387
118,299
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java
LinuxTaskController.getTaskCacheDirectory
private String getTaskCacheDirectory(TaskControllerContext context) { // In the case of JVM reuse, the task specific directory // is different from what is set with respect with // env.workDir. Hence building this from the taskId everytime. String taskId = context.task.getTaskID().toString(); File c...
java
private String getTaskCacheDirectory(TaskControllerContext context) { // In the case of JVM reuse, the task specific directory // is different from what is set with respect with // env.workDir. Hence building this from the taskId everytime. String taskId = context.task.getTaskID().toString(); File c...
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Return the task specific directory under the cache.
[ "Return", "the", "task", "specific", "directory", "under", "the", "cache", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LinuxTaskController.java#L435-L445