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119,500
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java
DFSUtil.getNNServiceRpcAddresses
public static List<InetSocketAddress> getNNServiceRpcAddresses( Configuration conf) throws IOException { // Use default address as fall back String defaultAddress; try { defaultAddress = NameNode.getDefaultAddress(conf); } catch (IllegalArgumentException e) { defaultAddress = null; ...
java
public static List<InetSocketAddress> getNNServiceRpcAddresses( Configuration conf) throws IOException { // Use default address as fall back String defaultAddress; try { defaultAddress = NameNode.getDefaultAddress(conf); } catch (IllegalArgumentException e) { defaultAddress = null; ...
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Returns list of InetSocketAddresses corresponding to namenodes from the configuration. Note this is to be used by datanodes to get the list of namenode addresses to talk to. Returns namenode address specifically configured for datanodes (using service ports), if found. If not, regular RPC address configured for other ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java#L670-L689
119,501
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java
DFSUtil.getInfoServer
public static String getInfoServer( InetSocketAddress namenode, Configuration conf, boolean isAvatar) { String httpAddressDefault = NetUtils.getServerAddress(conf, "dfs.info.bindAddress", "dfs.info.port", "dfs.http.address"); String httpAddress = null; if(n...
java
public static String getInfoServer( InetSocketAddress namenode, Configuration conf, boolean isAvatar) { String httpAddressDefault = NetUtils.getServerAddress(conf, "dfs.info.bindAddress", "dfs.info.port", "dfs.http.address"); String httpAddress = null; if(n...
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return server http address from the configuration @param conf @param namenode - namenode address @param isAvatar - whether it's avatar config @return server http
[ "return", "server", "http", "address", "from", "the", "configuration" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java#L745-L799
119,502
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java
DFSUtil.isDefaultNamenodeAddress
public static boolean isDefaultNamenodeAddress(Configuration conf, InetSocketAddress address, String... keys) { for (String key : keys) { String candidateAddress = conf.get(key); if (candidateAddress != null && address.equals(NetUtils.createSocketAddr(candidateAddress))) return t...
java
public static boolean isDefaultNamenodeAddress(Configuration conf, InetSocketAddress address, String... keys) { for (String key : keys) { String candidateAddress = conf.get(key); if (candidateAddress != null && address.equals(NetUtils.createSocketAddr(candidateAddress))) return t...
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Given the InetSocketAddress for any configured communication with a namenode, this method determines whether it is the configured communication channel for the "default" namenode. It does a reverse lookup on the list of default communication parameters to see if the given address matches any of them. Since the process ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java#L832-L841
119,503
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java
DFSUtil.setGenericConf
public static void setGenericConf(Configuration conf, String nameserviceId, String... keys) { for (String key : keys) { String value = conf.get(getNameServiceIdKey(key, nameserviceId)); if (value != null) { conf.set(key, value); } } }
java
public static void setGenericConf(Configuration conf, String nameserviceId, String... keys) { for (String key : keys) { String value = conf.get(getNameServiceIdKey(key, nameserviceId)); if (value != null) { conf.set(key, value); } } }
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Sets the node specific setting into generic configuration key. Looks up value of "key.nameserviceId" and if found sets that value into generic key in the conf. Note that this only modifies the runtime conf. @param conf Configuration object to lookup specific key and to set the value to the key passed. Note the conf ob...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/DFSUtil.java#L863-L871
119,504
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/NativeCrc32.java
NativeCrc32.verifyChunkedSums
public static void verifyChunkedSums(int bytesPerSum, int checksumType, ByteBuffer sums, ByteBuffer data, String fileName, long basePos) throws ChecksumException { nativeVerifyChunkedSums(bytesPerSum, checksumType, sums, sums.position(), data, data.position(), data.remaining(), f...
java
public static void verifyChunkedSums(int bytesPerSum, int checksumType, ByteBuffer sums, ByteBuffer data, String fileName, long basePos) throws ChecksumException { nativeVerifyChunkedSums(bytesPerSum, checksumType, sums, sums.position(), data, data.position(), data.remaining(), f...
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Verify the given buffers of data and checksums, and throw an exception if any checksum is invalid. The buffers given to this function should have their position initially at the start of the data, and their limit set at the end of the data. The position, limit, and mark are not modified. @param bytesPerSum the chunk s...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/NativeCrc32.java#L98-L105
119,505
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/ShortWritable.java
ShortWritable.compareTo
@Override public int compareTo(ShortWritable o) { short thisValue = this.value; short thatValue = (o).value; return (thisValue < thatValue ? -1 : (thisValue == thatValue ? 0 : 1)); }
java
@Override public int compareTo(ShortWritable o) { short thisValue = this.value; short thatValue = (o).value; return (thisValue < thatValue ? -1 : (thisValue == thatValue ? 0 : 1)); }
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Compares two ShortWritable.
[ "Compares", "two", "ShortWritable", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/ShortWritable.java#L79-L84
119,506
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/AbstractMapWritable.java
AbstractMapWritable.addToMap
private synchronized void addToMap(Class clazz, byte id) { if (classToIdMap.containsKey(clazz)) { byte b = classToIdMap.get(clazz); if (b != id) { throw new IllegalArgumentException ("Class " + clazz.getName() + " already registered but maps to " + b + " and not " + id); } } ...
java
private synchronized void addToMap(Class clazz, byte id) { if (classToIdMap.containsKey(clazz)) { byte b = classToIdMap.get(clazz); if (b != id) { throw new IllegalArgumentException ("Class " + clazz.getName() + " already registered but maps to " + b + " and not " + id); } } ...
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Used to add "predefined" classes and by Writable to copy "new" classes.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/AbstractMapWritable.java#L62-L79
119,507
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/AbstractMapWritable.java
AbstractMapWritable.addToMap
protected synchronized void addToMap(Class clazz) { if (classToIdMap.containsKey(clazz)) { return; } if (newClasses + 1 > Byte.MAX_VALUE) { throw new IndexOutOfBoundsException("adding an additional class would" + " exceed the maximum number allowed"); } byte id = ++newClasses; ...
java
protected synchronized void addToMap(Class clazz) { if (classToIdMap.containsKey(clazz)) { return; } if (newClasses + 1 > Byte.MAX_VALUE) { throw new IndexOutOfBoundsException("adding an additional class would" + " exceed the maximum number allowed"); } byte id = ++newClasses; ...
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Add a Class to the maps if it is not already present.
[ "Add", "a", "Class", "to", "the", "maps", "if", "it", "is", "not", "already", "present", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/AbstractMapWritable.java#L82-L92
119,508
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/AbstractMapWritable.java
AbstractMapWritable.copy
protected synchronized void copy(Writable other) { if (other != null) { try { DataOutputBuffer out = new DataOutputBuffer(); other.write(out); DataInputBuffer in = new DataInputBuffer(); in.reset(out.getData(), out.getLength()); readFields(in); } catch (I...
java
protected synchronized void copy(Writable other) { if (other != null) { try { DataOutputBuffer out = new DataOutputBuffer(); other.write(out); DataInputBuffer in = new DataInputBuffer(); in.reset(out.getData(), out.getLength()); readFields(in); } catch (I...
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Used by child copy constructors.
[ "Used", "by", "child", "copy", "constructors", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/AbstractMapWritable.java#L105-L122
119,509
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/UpgradeObjectDatanode.java
UpgradeObjectDatanode.preUpgradeAction
boolean preUpgradeAction(NamespaceInfo nsInfo) throws IOException { int nsUpgradeVersion = nsInfo.getDistributedUpgradeVersion(); if(nsUpgradeVersion >= getVersion()) return false; // name-node will perform the upgrade // Missed the upgrade. Report problem to the name-node and throw exception Stri...
java
boolean preUpgradeAction(NamespaceInfo nsInfo) throws IOException { int nsUpgradeVersion = nsInfo.getDistributedUpgradeVersion(); if(nsUpgradeVersion >= getVersion()) return false; // name-node will perform the upgrade // Missed the upgrade. Report problem to the name-node and throw exception Stri...
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Specifies what to do before the upgrade is started. The default implementation checks whether the data-node missed the upgrade and throws an exception if it did. This leads to the data-node shutdown. Data-nodes usually start distributed upgrade when the name-node replies to its heartbeat with a start upgrade command....
[ "Specifies", "what", "to", "do", "before", "the", "upgrade", "is", "started", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/UpgradeObjectDatanode.java#L77-L96
119,510
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.removeBlockFromMap
private BlockInfo removeBlockFromMap(Block b) { if (b == null) { return null; } ns.decrementSafeBlockCountForBlockRemoval(b); return blocks.remove(b); }
java
private BlockInfo removeBlockFromMap(Block b) { if (b == null) { return null; } ns.decrementSafeBlockCountForBlockRemoval(b); return blocks.remove(b); }
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All removals from the blocks map goes through this function. @param b block to be removed @param decrementSafeBlockCount whether need to decrement safe block count when needed @return the {@link BlockInfo} for the removed block
[ "All", "removals", "from", "the", "blocks", "map", "goes", "through", "this", "function", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L380-L386
119,511
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.addINode
BlockInfo addINode(Block b, INodeFile iNode, short replication) { BlockInfo info = checkBlockInfo(b, replication); info.inode = iNode; return info; }
java
BlockInfo addINode(Block b, INodeFile iNode, short replication) { BlockInfo info = checkBlockInfo(b, replication); info.inode = iNode; return info; }
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Add block b belonging to the specified file inode to the map
[ "Add", "block", "b", "belonging", "to", "the", "specified", "file", "inode", "to", "the", "map" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L425-L429
119,512
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.addINodeForLoading
BlockInfo addINodeForLoading(Block b, INodeFile iNode) { // allocate new block when loading the image // for hardlinked files, we need to check if the blocks are already there BlockInfo info = checkBlockInfo(b, iNode.getReplication(), iNode.isHardlinkFile()); info.inode = iNode; return info;...
java
BlockInfo addINodeForLoading(Block b, INodeFile iNode) { // allocate new block when loading the image // for hardlinked files, we need to check if the blocks are already there BlockInfo info = checkBlockInfo(b, iNode.getReplication(), iNode.isHardlinkFile()); info.inode = iNode; return info;...
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Add block b belonging to the specified file inode to the map. Does not check for block existence, for non-hardlinked files.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L435-L442
119,513
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.updateINode
public BlockInfo updateINode(BlockInfo oldBlock, Block newBlock, INodeFile iNode, short replication, boolean forceUpdate) throws IOException { // If the old block is not same as the new block, probably the GS was // bumped up, hence update the block with new GS/size. // If forceUpdate is true, we will...
java
public BlockInfo updateINode(BlockInfo oldBlock, Block newBlock, INodeFile iNode, short replication, boolean forceUpdate) throws IOException { // If the old block is not same as the new block, probably the GS was // bumped up, hence update the block with new GS/size. // If forceUpdate is true, we will...
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Add block b belonging to the specified file inode to the map, this overwrites the map with the new block information.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L448-L487
119,514
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.removeINode
void removeINode(Block b) { BlockInfo info = blocks.get(b); if (info != null) { info.inode = null; if (info.getDatanode(0) == null) { // no datanodes left removeBlockFromMap(b); // remove block from the map } } }
java
void removeINode(Block b) { BlockInfo info = blocks.get(b); if (info != null) { info.inode = null; if (info.getDatanode(0) == null) { // no datanodes left removeBlockFromMap(b); // remove block from the map } } }
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Remove INode reference from block b. If it does not belong to any file and data-nodes, then remove the block from the block map.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L494-L502
119,515
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.removeBlock
void removeBlock(Block block) { BlockInfo blockInfo = removeBlockFromMap(block); if (blockInfo == null) return; blockInfo.inode = null; for(int idx = blockInfo.numNodes()-1; idx >= 0; idx--) { DatanodeDescriptor dn = blockInfo.getDatanode(idx); dn.removeBlock(blockInfo); // remove from...
java
void removeBlock(Block block) { BlockInfo blockInfo = removeBlockFromMap(block); if (blockInfo == null) return; blockInfo.inode = null; for(int idx = blockInfo.numNodes()-1; idx >= 0; idx--) { DatanodeDescriptor dn = blockInfo.getDatanode(idx); dn.removeBlock(blockInfo); // remove from...
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Remove the block from the block map; remove it from all data-node lists it belongs to; and remove all data-node locations associated with the block.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L509-L518
119,516
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.numNodes
int numNodes(Block b) { BlockInfo info = blocks.get(b); return info == null ? 0 : info.numNodes(); }
java
int numNodes(Block b) { BlockInfo info = blocks.get(b); return info == null ? 0 : info.numNodes(); }
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counts number of containing nodes. Better than using iterator.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L536-L539
119,517
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.addNode
boolean addNode(Block b, DatanodeDescriptor node, int replication) { // insert into the map if not there yet BlockInfo info = checkBlockInfo(b, replication); // add block to the data-node list and the node to the block info return node.addBlock(info); }
java
boolean addNode(Block b, DatanodeDescriptor node, int replication) { // insert into the map if not there yet BlockInfo info = checkBlockInfo(b, replication); // add block to the data-node list and the node to the block info return node.addBlock(info); }
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returns true if the node does not already exists and is added. false if the node already exists.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L543-L548
119,518
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.removeNode
boolean removeNode(Block b, DatanodeDescriptor node) { BlockInfo info = blocks.get(b); if (info == null) return false; // remove block from the data-node list and the node from the block info boolean removed = node.removeBlock(info); if (info.getDatanode(0) == null // no datanodes left ...
java
boolean removeNode(Block b, DatanodeDescriptor node) { BlockInfo info = blocks.get(b); if (info == null) return false; // remove block from the data-node list and the node from the block info boolean removed = node.removeBlock(info); if (info.getDatanode(0) == null // no datanodes left ...
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Remove data-node reference from the block. Remove the block from the block map only if it does not belong to any file and data-nodes.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L555-L568
119,519
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.getBlocksIterarors
List<Iterator<BlockInfo>> getBlocksIterarors(int numShards) { List<Iterator<BlockInfo>> iterators = new ArrayList<Iterator<BlockInfo>>(); if (numShards <= 0) { throw new IllegalArgumentException("Number of shards must be greater than 0"); } for (int i = 0; i < numShards; i++) { Iterator<Bloc...
java
List<Iterator<BlockInfo>> getBlocksIterarors(int numShards) { List<Iterator<BlockInfo>> iterators = new ArrayList<Iterator<BlockInfo>>(); if (numShards <= 0) { throw new IllegalArgumentException("Number of shards must be greater than 0"); } for (int i = 0; i < numShards; i++) { Iterator<Bloc...
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Get a list of shard iterators. Each iterator will travers only a part of the blocks map. @param numShards desired number of shards @return list of iterators (size might be smaller than numShards if blocks map has fewer buckets)
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L585-L597
119,520
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java
BlocksMap.contains
boolean contains(Block block, DatanodeDescriptor datanode) { BlockInfo info = blocks.get(block); if (info == null) return false; if (-1 == info.findDatanode(datanode)) return false; return true; }
java
boolean contains(Block block, DatanodeDescriptor datanode) { BlockInfo info = blocks.get(block); if (info == null) return false; if (-1 == info.findDatanode(datanode)) return false; return true; }
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Check if the replica at the given datanode exists in map
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/BlocksMap.java#L608-L617
119,521
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImagePreTransactionalStorageInspector.java
FSImagePreTransactionalStorageInspector.readCheckpointTime
static long readCheckpointTime(StorageDirectory sd) throws IOException { File timeFile = NNStorage.getStorageFile(sd, NameNodeFile.TIME); long timeStamp = 0L; if (timeFile.exists() && timeFile.canRead()) { DataInputStream in = new DataInputStream(new FileInputStream(timeFile)); try { tim...
java
static long readCheckpointTime(StorageDirectory sd) throws IOException { File timeFile = NNStorage.getStorageFile(sd, NameNodeFile.TIME); long timeStamp = 0L; if (timeFile.exists() && timeFile.canRead()) { DataInputStream in = new DataInputStream(new FileInputStream(timeFile)); try { tim...
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Determine the checkpoint time of the specified StorageDirectory @param sd StorageDirectory to check @return If file exists and can be read, last checkpoint time. If not, 0L. @throws IOException On errors processing file pointed to by sd
[ "Determine", "the", "checkpoint", "time", "of", "the", "specified", "StorageDirectory" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSImagePreTransactionalStorageInspector.java#L145-L157
119,522
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/LimitTasksPerJobTaskScheduler.java
LimitTasksPerJobTaskScheduler.getMaxMapAndReduceLoad
protected synchronized int[] getMaxMapAndReduceLoad(int localMaxMapLoad, int localMaxReduceLoad) { // Approximate because of concurrency final int numTaskTrackers = taskTrackerManager.getClusterStatus().getTaskTrackers(); /* Hold the result */ int maxMapLoad = 0; int maxReduceLoad = 0; ...
java
protected synchronized int[] getMaxMapAndReduceLoad(int localMaxMapLoad, int localMaxReduceLoad) { // Approximate because of concurrency final int numTaskTrackers = taskTrackerManager.getClusterStatus().getTaskTrackers(); /* Hold the result */ int maxMapLoad = 0; int maxReduceLoad = 0; ...
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Determine the maximum number of maps or reduces that we are willing to run on a taskTracker which accept a maximum of localMaxMapLoad maps and localMaxReduceLoad reduces @param localMaxMapLoad The local maximum number of map tasks for a host @param localMaxReduceLoad The local maximum number of reduce tasks for a host ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/LimitTasksPerJobTaskScheduler.java#L171-L198
119,523
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/util/MetricsRegistry.java
MetricsRegistry.add
public void add(final String metricsName, final MetricsBase theMetricsObj) { if (metricsList.putIfAbsent(metricsName, theMetricsObj) != null) { throw new IllegalArgumentException("Duplicate metricsName:" + metricsName); } }
java
public void add(final String metricsName, final MetricsBase theMetricsObj) { if (metricsList.putIfAbsent(metricsName, theMetricsObj) != null) { throw new IllegalArgumentException("Duplicate metricsName:" + metricsName); } }
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Add a new metrics to the registry @param metricsName - the name @param theMetricsObj - the metrics @throws IllegalArgumentException if a name is already registered
[ "Add", "a", "new", "metrics", "to", "the", "registry" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/util/MetricsRegistry.java#L51-L55
119,524
facebookarchive/hadoop-20
src/examples/org/apache/hadoop/examples/PiEstimator.java
PiEstimator.main
public static void main(String[] argv) throws Exception { System.exit(ToolRunner.run(null, new PiEstimator(), argv)); }
java
public static void main(String[] argv) throws Exception { System.exit(ToolRunner.run(null, new PiEstimator(), argv)); }
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main method for running it as a stand alone command.
[ "main", "method", "for", "running", "it", "as", "a", "stand", "alone", "command", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/examples/org/apache/hadoop/examples/PiEstimator.java#L350-L352
119,525
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FileStatus.java
FileStatus.compareTo
public int compareTo(Object o) { FileStatus other = (FileStatus)o; return this.getPath().compareTo(other.getPath()); }
java
public int compareTo(Object o) { FileStatus other = (FileStatus)o; return this.getPath().compareTo(other.getPath()); }
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Compare this object to another object @param o the object to be compared. @return a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. @throws ClassCastException if the specified object's is not of type FileStatus
[ "Compare", "this", "object", "to", "another", "object" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FileStatus.java#L282-L285
119,526
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/JobID.java
JobID.compareTo
@Override public int compareTo(ID o) { JobID that = (JobID)o; int jtComp = this.jtIdentifier.compareTo(that.jtIdentifier); if(jtComp == 0) { return this.id - that.id; } else return jtComp; }
java
@Override public int compareTo(ID o) { JobID that = (JobID)o; int jtComp = this.jtIdentifier.compareTo(that.jtIdentifier); if(jtComp == 0) { return this.id - that.id; } else return jtComp; }
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Compare JobIds by first jtIdentifiers, then by job numbers
[ "Compare", "JobIds", "by", "first", "jtIdentifiers", "then", "by", "job", "numbers" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/JobID.java#L86-L94
119,527
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapreduce/JobID.java
JobID.appendTo
public StringBuilder appendTo(StringBuilder builder) { builder.append(SEPARATOR); builder.append(jtIdentifier); builder.append(SEPARATOR); builder.append(idFormat.format(id)); return builder; }
java
public StringBuilder appendTo(StringBuilder builder) { builder.append(SEPARATOR); builder.append(jtIdentifier); builder.append(SEPARATOR); builder.append(idFormat.format(id)); return builder; }
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Add the stuff after the "job" prefix to the given builder. This is useful, because the sub-ids use this substring at the start of their string. @param builder the builder to append to @return the builder that was passed in
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapreduce/JobID.java#L102-L108
119,528
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java
JspHelper.bestNode
public DatanodeInfo[] bestNode(LocatedBlocks blks) throws IOException { // insert all known replica locations into a tree map where the // key is the DatanodeInfo TreeMap<DatanodeInfo, NodeRecord> map = new TreeMap<DatanodeInfo, NodeRecord>(); for (int i = 0; i < blks.getLocatedBlocks().size(); i...
java
public DatanodeInfo[] bestNode(LocatedBlocks blks) throws IOException { // insert all known replica locations into a tree map where the // key is the DatanodeInfo TreeMap<DatanodeInfo, NodeRecord> map = new TreeMap<DatanodeInfo, NodeRecord>(); for (int i = 0; i < blks.getLocatedBlocks().size(); i...
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Get an array of nodes that can serve the streaming request The best one is the first in the array which has maximum local copies of all blocks
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java#L117-L144
119,529
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java
JspHelper.bestNode
public static DatanodeInfo bestNode(LocatedBlock blk) throws IOException { DatanodeInfo [] nodes = blk.getLocations(); return bestNode(nodes, true).get(0); }
java
public static DatanodeInfo bestNode(LocatedBlock blk) throws IOException { DatanodeInfo [] nodes = blk.getLocations(); return bestNode(nodes, true).get(0); }
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return a random node from the replicas of this block
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java#L149-L152
119,530
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java
JspHelper.bestNode
public static <T extends DatanodeID> List<T> bestNode(T[] nodes, boolean doRandom) throws IOException { TreeSet<T> deadNodes = new TreeSet<T>(); T chosenNode = null; int failures = 0; Socket s = null; int index = -1; if (nodes == null || nodes.length == 0) { throw new IOException("No ...
java
public static <T extends DatanodeID> List<T> bestNode(T[] nodes, boolean doRandom) throws IOException { TreeSet<T> deadNodes = new TreeSet<T>(); T chosenNode = null; int failures = 0; Socket s = null; int index = -1; if (nodes == null || nodes.length == 0) { throw new IOException("No ...
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Choose a list datanodes from the specified list. The best one is the first one in the list. If doRamdom is true, then a random datanode is selected. Otherwise, a node that appears earlier in the list has more probability of being selected
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java#L162-L219
119,531
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java
JspHelper.getUrlParam
public static String getUrlParam(String name, String val) { return val == null ? "" : "&" + name + "=" + val; }
java
public static String getUrlParam(String name, String val) { return val == null ? "" : "&" + name + "=" + val; }
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Returns the url parameter for the given bpid string. @param name parameter name @param val parameter value @return url parameter
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java#L573-L575
119,532
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java
JspHelper.getDFSClient
public static DFSClient getDFSClient(final HttpServletRequest request, final Configuration conf) throws IOException, InterruptedException { final String nnAddr = request.getParameter(JspHelper.NAMENODE_ADDRESS); return new DFSClient(DFSUtil.getSocketAddress(nnAddr), conf); }
java
public static DFSClient getDFSClient(final HttpServletRequest request, final Configuration conf) throws IOException, InterruptedException { final String nnAddr = request.getParameter(JspHelper.NAMENODE_ADDRESS); return new DFSClient(DFSUtil.getSocketAddress(nnAddr), conf); }
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Get DFSClient for a namenode corresponding to the BPID from a datanode
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/JspHelper.java#L578-L582
119,533
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/lib/IdentityReducer.java
IdentityReducer.reduce
public void reduce(K key, Iterator<V> values, OutputCollector<K, V> output, Reporter reporter) throws IOException { while (values.hasNext()) { output.collect(key, values.next()); } }
java
public void reduce(K key, Iterator<V> values, OutputCollector<K, V> output, Reporter reporter) throws IOException { while (values.hasNext()) { output.collect(key, values.next()); } }
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Writes all keys and values directly to output.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/lib/IdentityReducer.java#L38-L44
119,534
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java
CoronaAdmin.restartTaskTracker
private int restartTaskTracker(boolean forceFlag, int batchSize) throws IOException { // Get the current configuration CoronaConf conf = new CoronaConf(getConf()); InetSocketAddress address = NetUtils.createSocketAddr(conf .getClusterManagerAddress()); TFramedTransport transport = new TFramedTr...
java
private int restartTaskTracker(boolean forceFlag, int batchSize) throws IOException { // Get the current configuration CoronaConf conf = new CoronaConf(getConf()); InetSocketAddress address = NetUtils.createSocketAddr(conf .getClusterManagerAddress()); TFramedTransport transport = new TFramedTr...
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Command to ask the Cluster Manager to restart all the task tracker @param forceFlag if CM shall ignore all previous restart requests @exception IOException @return Returns 0 where no exception is thrown.
[ "Command", "to", "ask", "the", "Cluster", "Manager", "to", "restart", "all", "the", "task", "tracker" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java#L105-L130
119,535
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java
CoronaAdmin.setSafeMode
private int setSafeMode(boolean safeMode) throws IOException { // Get the current configuration CoronaConf conf = new CoronaConf(getConf()); InetSocketAddress address = NetUtils.createSocketAddr(conf .getClusterManagerAddress()); TFramedTransport transport = new TFramedTransport( new TSocke...
java
private int setSafeMode(boolean safeMode) throws IOException { // Get the current configuration CoronaConf conf = new CoronaConf(getConf()); InetSocketAddress address = NetUtils.createSocketAddr(conf .getClusterManagerAddress()); TFramedTransport transport = new TFramedTransport( new TSocke...
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Turns on the Safe Mode if safeMode is true. Turns off the Safe Mode if safeMode is false. @param safeMode Is true if we want the Safe Mode to be on. false otherwise. @return 0 if successful. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java#L140-L164
119,536
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java
CoronaAdmin.forceSetSafeModeOnPJT
private int forceSetSafeModeOnPJT(boolean safeMode) throws IOException { CoronaConf conf = new CoronaConf(getConf()); try { ClusterManagerAvailabilityChecker.getPJTClient(conf). setClusterManagerSafeModeFlag(safeMode); } catch (IOException e) { System.err.println("Could not set the Safe ...
java
private int forceSetSafeModeOnPJT(boolean safeMode) throws IOException { CoronaConf conf = new CoronaConf(getConf()); try { ClusterManagerAvailabilityChecker.getPJTClient(conf). setClusterManagerSafeModeFlag(safeMode); } catch (IOException e) { System.err.println("Could not set the Safe ...
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Forcefully set the Safe Mode on the PJT @return 0 if successful @throws IOException
[ "Forcefully", "set", "the", "Safe", "Mode", "on", "the", "PJT" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java#L199-L210
119,537
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java
CoronaAdmin.main
public static void main(String[] args) throws Exception { int result = ToolRunner.run(new CoronaAdmin(), args); System.exit(result); }
java
public static void main(String[] args) throws Exception { int result = ToolRunner.run(new CoronaAdmin(), args); System.exit(result); }
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Entry point for the tool. @param args The command line arguments. @throws Exception
[ "Entry", "point", "for", "the", "tool", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/CoronaAdmin.java#L280-L283
119,538
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/mapred/ProxyJobTracker.java
ProxyJobTracker.urlInJobHistory
public static String urlInJobHistory( Path jobHistoryFileLocation, String jobId) throws IOException { try { FileSystem fs = jobHistoryFileLocation.getFileSystem(conf); fs.getFileStatus(jobHistoryFileLocation); } catch (FileNotFoundException e) { return null; } return "http://"...
java
public static String urlInJobHistory( Path jobHistoryFileLocation, String jobId) throws IOException { try { FileSystem fs = jobHistoryFileLocation.getFileSystem(conf); fs.getFileStatus(jobHistoryFileLocation); } catch (FileNotFoundException e) { return null; } return "http://"...
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Given the path to the jobHistoryFile, check if the file already exists. 1. If FileNoFoundException is caught, means the job is not yet finished, and there is not job hisotry log file in the done directory 2. If not, it means we get a hit for the jobHistoryFile, directly recover the url to the coronoajobdetailshistory p...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/mapred/ProxyJobTracker.java#L779-L791
119,539
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/lib/aggregate/ValueHistogram.java
ValueHistogram.addNextValue
public void addNextValue(Object val) { String valCountStr = val.toString(); int pos = valCountStr.lastIndexOf("\t"); String valStr = valCountStr; String countStr = "1"; if (pos >= 0) { valStr = valCountStr.substring(0, pos); countStr = valCountStr.substring(pos + 1); } Long ...
java
public void addNextValue(Object val) { String valCountStr = val.toString(); int pos = valCountStr.lastIndexOf("\t"); String valStr = valCountStr; String countStr = "1"; if (pos >= 0) { valStr = valCountStr.substring(0, pos); countStr = valCountStr.substring(pos + 1); } Long ...
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add the given val to the aggregator. @param val the value to be added. It is expected to be a string in the form of xxxx\tnum, meaning xxxx has num occurrences.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/lib/aggregate/ValueHistogram.java#L47-L66
119,540
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/hdfs/DataGenerator.java
DataGenerator.run
public int run(String[] args) throws Exception { int exitCode = 0; exitCode = init(args); if (exitCode != 0) { return exitCode; } // genDirStructure(); genFiles(); return exitCode; }
java
public int run(String[] args) throws Exception { int exitCode = 0; exitCode = init(args); if (exitCode != 0) { return exitCode; } // genDirStructure(); genFiles(); return exitCode; }
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Main function. It first parses the command line arguments. It then reads the directory structure from the input directory structure file and creates directory structure in the file system namespace. Afterwards it reads the file attributes and creates files in the file. All file content is filled with 'a'. @return
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/hdfs/DataGenerator.java#L61-L70
119,541
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/hdfs/DataGenerator.java
DataGenerator.genDirStructure
@SuppressWarnings("unused") private void genDirStructure() throws IOException { BufferedReader in = new BufferedReader(new FileReader(new File(inDir, StructureGenerator.DIR_STRUCTURE_FILE_NAME))); String line; while ((line = in.readLine()) != null) { fs.mkdirs(new Path(root + line)); } }
java
@SuppressWarnings("unused") private void genDirStructure() throws IOException { BufferedReader in = new BufferedReader(new FileReader(new File(inDir, StructureGenerator.DIR_STRUCTURE_FILE_NAME))); String line; while ((line = in.readLine()) != null) { fs.mkdirs(new Path(root + line)); } }
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Read directory structure file under the input directory. Create each directory under the specified root. The directory names are relative to the specified root.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/hdfs/DataGenerator.java#L103-L111
119,542
facebookarchive/hadoop-20
src/contrib/benchmark/src/java/org/apache/hadoop/hdfs/DataGenerator.java
DataGenerator.genFiles
private void genFiles() throws IOException { // // BufferedReader in = new BufferedReader(new FileReader(new File(inDir, // StructureGenerator.FILE_STRUCTURE_FILE_NAME))); // String line; // while ((line = in.readLine()) != null) { // String[] tokens = line.split(" "); // if (tokens.length != 2) { // th...
java
private void genFiles() throws IOException { // // BufferedReader in = new BufferedReader(new FileReader(new File(inDir, // StructureGenerator.FILE_STRUCTURE_FILE_NAME))); // String line; // while ((line = in.readLine()) != null) { // String[] tokens = line.split(" "); // if (tokens.length != 2) { // th...
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Read file structure file under the input directory. Create each file under the specified root. The file names are relative to the root.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/benchmark/src/java/org/apache/hadoop/hdfs/DataGenerator.java#L117-L157
119,543
facebookarchive/hadoop-20
src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorEngine.java
SimulatorEngine.startTaskTrackers
void startTaskTrackers(ClusterStory clusterStory, long now) { /** port assigned to TTs, incremented by 1 for each TT */ int port = 10000; long ms = now + 100; for (MachineNode node : clusterStory.getMachines()) { String hostname = node.getName(); RackNode rackNode = node.getRackNode(); ...
java
void startTaskTrackers(ClusterStory clusterStory, long now) { /** port assigned to TTs, incremented by 1 for each TT */ int port = 10000; long ms = now + 100; for (MachineNode node : clusterStory.getMachines()) { String hostname = node.getName(); RackNode rackNode = node.getRackNode(); ...
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Start simulated task trackers based on topology. @param clusterStory The cluster topology. @param now time stamp when the simulator is started, {@link SimulatorTaskTracker}s are started shortly after this time stamp
[ "Start", "simulated", "task", "trackers", "based", "on", "topology", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorEngine.java#L74-L90
119,544
facebookarchive/hadoop-20
src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorEngine.java
SimulatorEngine.init
@SuppressWarnings("deprecation") void init() throws InterruptedException, IOException { long now = System.currentTimeMillis(); JobConf jobConf = new JobConf(getConf()); jobConf.setClass("topology.node.switch.mapping.impl", StaticMapping.class, DNSToSwitchMapping.class); jobConf.set("fs.defaul...
java
@SuppressWarnings("deprecation") void init() throws InterruptedException, IOException { long now = System.currentTimeMillis(); JobConf jobConf = new JobConf(getConf()); jobConf.setClass("topology.node.switch.mapping.impl", StaticMapping.class, DNSToSwitchMapping.class); jobConf.set("fs.defaul...
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Initiate components in the simulation. @throws InterruptedException @throws IOException if trace or topology files cannot be open
[ "Initiate", "components", "in", "the", "simulation", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorEngine.java#L97-L152
119,545
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/hash/JenkinsHash.java
JenkinsHash.main
public static void main(String[] args) throws IOException { if (args.length != 1) { System.err.println("Usage: JenkinsHash filename"); System.exit(-1); } FileInputStream in = new FileInputStream(args[0]); byte[] bytes = new byte[512]; int value = 0; JenkinsHash hash = new JenkinsHash...
java
public static void main(String[] args) throws IOException { if (args.length != 1) { System.err.println("Usage: JenkinsHash filename"); System.exit(-1); } FileInputStream in = new FileInputStream(args[0]); byte[] bytes = new byte[512]; int value = 0; JenkinsHash hash = new JenkinsHash...
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Compute the hash of the specified file @param args name of file to compute hash of. @throws IOException
[ "Compute", "the", "hash", "of", "the", "specified", "file" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/hash/JenkinsHash.java#L246-L259
119,546
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskStatus.java
TaskStatus.setStartTime
void setStartTime(long startTime) { //Making the assumption of passed startTime to be a positive //long value explicit. if (startTime > 0) { this.startTime = startTime; } else { //Using String utils to get the stack trace. LOG.error("Trying to set illegal startTime for task : " + taski...
java
void setStartTime(long startTime) { //Making the assumption of passed startTime to be a positive //long value explicit. if (startTime > 0) { this.startTime = startTime; } else { //Using String utils to get the stack trace. LOG.error("Trying to set illegal startTime for task : " + taski...
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Set startTime of the task if start time is greater than zero. @param startTime start time
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskStatus.java#L227-L238
119,547
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskStatus.java
TaskStatus.setPhase
void setPhase(Phase phase){ TaskStatus.Phase oldPhase = getPhase(); if (oldPhase != phase){ // sort phase started if (phase == TaskStatus.Phase.SORT){ setShuffleFinishTime(JobTracker.getClock().getTime()); } else if (phase == TaskStatus.Phase.REDUCE){ setSortFinishTime(JobTrack...
java
void setPhase(Phase phase){ TaskStatus.Phase oldPhase = getPhase(); if (oldPhase != phase){ // sort phase started if (phase == TaskStatus.Phase.SORT){ setShuffleFinishTime(JobTracker.getClock().getTime()); } else if (phase == TaskStatus.Phase.REDUCE){ setSortFinishTime(JobTrack...
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Set current phase of this task. @param phase phase of this task
[ "Set", "current", "phase", "of", "this", "task", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskStatus.java#L252-L263
119,548
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/TaskStatus.java
TaskStatus.statusUpdate
synchronized void statusUpdate(State runState, float progress, String state, Phase phase, long finishTime) { setRunState(runState); setProgress(progress); setStateString(stat...
java
synchronized void statusUpdate(State runState, float progress, String state, Phase phase, long finishTime) { setRunState(runState); setProgress(progress); setStateString(stat...
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Update specific fields of task status This update is done in JobTracker when a cleanup attempt of task reports its status. Then update only specific fields, not all. @param runState @param progress @param state @param phase @param finishTime
[ "Update", "specific", "fields", "of", "task", "status" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/TaskStatus.java#L378-L390
119,549
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java
MD5FileUtils.verifySavedMD5
public static void verifySavedMD5(File dataFile, MD5Hash expectedMD5) throws IOException { MD5Hash storedHash = readStoredMd5ForFile(dataFile); // Check the hash itself if (!expectedMD5.equals(storedHash)) { throw new IOException( "File " + dataFile + " did not match stored MD5 checksu...
java
public static void verifySavedMD5(File dataFile, MD5Hash expectedMD5) throws IOException { MD5Hash storedHash = readStoredMd5ForFile(dataFile); // Check the hash itself if (!expectedMD5.equals(storedHash)) { throw new IOException( "File " + dataFile + " did not match stored MD5 checksu...
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Verify that the previously saved md5 for the given file matches expectedMd5. @throws IOException
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java#L54-L63
119,550
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java
MD5FileUtils.readStoredMd5ForFile
public static MD5Hash readStoredMd5ForFile(File dataFile) throws IOException { File md5File = getDigestFileForFile(dataFile); String md5Line; if (!md5File.exists()) { return null; } BufferedReader reader = new BufferedReader(new FileReader(md5File)); try { md5Line = ...
java
public static MD5Hash readStoredMd5ForFile(File dataFile) throws IOException { File md5File = getDigestFileForFile(dataFile); String md5Line; if (!md5File.exists()) { return null; } BufferedReader reader = new BufferedReader(new FileReader(md5File)); try { md5Line = ...
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Read the md5 checksum stored alongside the given file, or null if no md5 is stored. @param dataFile the file containing data @return the checksum stored in dataFile.md5
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java#L71-L109
119,551
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java
MD5FileUtils.computeMd5ForFile
public static MD5Hash computeMd5ForFile(File dataFile) throws IOException { InputStream in = new FileInputStream(dataFile); try { MessageDigest digester = MD5Hash.getDigester(); DigestInputStream dis = new DigestInputStream(in, digester); IOUtils.copyBytes(dis, new IOUtils.NullOutputStream(), ...
java
public static MD5Hash computeMd5ForFile(File dataFile) throws IOException { InputStream in = new FileInputStream(dataFile); try { MessageDigest digester = MD5Hash.getDigester(); DigestInputStream dis = new DigestInputStream(in, digester); IOUtils.copyBytes(dis, new IOUtils.NullOutputStream(), ...
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Read dataFile and compute its MD5 checksum.
[ "Read", "dataFile", "and", "compute", "its", "MD5", "checksum", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java#L114-L125
119,552
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java
MD5FileUtils.saveMD5File
public static void saveMD5File(File dataFile, MD5Hash digest) throws IOException { File md5File = getDigestFileForFile(dataFile); String digestString = StringUtils.byteToHexString( digest.getDigest()); String md5Line = digestString + " *" + dataFile.getName() + "\n"; AtomicFileOutputS...
java
public static void saveMD5File(File dataFile, MD5Hash digest) throws IOException { File md5File = getDigestFileForFile(dataFile); String digestString = StringUtils.byteToHexString( digest.getDigest()); String md5Line = digestString + " *" + dataFile.getName() + "\n"; AtomicFileOutputS...
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Save the ".md5" file that lists the md5sum of another file. @param dataFile the original file whose md5 was computed @param digest the computed digest @throws IOException
[ "Save", "the", ".", "md5", "file", "that", "lists", "the", "md5sum", "of", "another", "file", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/util/MD5FileUtils.java#L133-L144
119,553
facebookarchive/hadoop-20
src/core/org/apache/hadoop/io/VIntWritable.java
VIntWritable.compareTo
public int compareTo(Object o) { int thisValue = this.value; int thatValue = ((VIntWritable)o).value; return (thisValue < thatValue ? -1 : (thisValue == thatValue ? 0 : 1)); }
java
public int compareTo(Object o) { int thisValue = this.value; int thatValue = ((VIntWritable)o).value; return (thisValue < thatValue ? -1 : (thisValue == thatValue ? 0 : 1)); }
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Compares two VIntWritables.
[ "Compares", "two", "VIntWritables", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/io/VIntWritable.java#L62-L66
119,554
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/StatisticsEditsVisitor.java
StatisticsEditsVisitor.incrementOpCodeCount
private void incrementOpCodeCount(Byte opCode) { if(!opCodeCount.containsKey(opCode)) { opCodeCount.put(opCode, 0L); } Long newValue = opCodeCount.get(opCode) + 1; opCodeCount.put(opCode, newValue); }
java
private void incrementOpCodeCount(Byte opCode) { if(!opCodeCount.containsKey(opCode)) { opCodeCount.put(opCode, 0L); } Long newValue = opCodeCount.get(opCode) + 1; opCodeCount.put(opCode, newValue); }
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Increment the op code counter @param opCode opCode for which to increment count
[ "Increment", "the", "op", "code", "counter" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/tools/offlineEditsViewer/StatisticsEditsVisitor.java#L162-L168
119,555
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/EditLogInputStream.java
EditLogInputStream.readOp
public FSEditLogOp readOp() throws IOException { FSEditLogOp ret; if (cachedOp != null) { ret = cachedOp; cachedOp = null; return ret; } return nextOp(); }
java
public FSEditLogOp readOp() throws IOException { FSEditLogOp ret; if (cachedOp != null) { ret = cachedOp; cachedOp = null; return ret; } return nextOp(); }
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Read an operation from the stream @return an operation from the stream or null if at end of stream @throws IOException if there is an error reading from the stream
[ "Read", "an", "operation", "from", "the", "stream" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/EditLogInputStream.java#L62-L70
119,556
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/EditLogInputStream.java
EditLogInputStream.skipUntil
public boolean skipUntil(long txid) throws IOException { while (true) { FSEditLogOp op = readOp(); if (op == null) { return false; } if (op.getTransactionId() >= txid) { cachedOp = op; return true; } } }
java
public boolean skipUntil(long txid) throws IOException { while (true) { FSEditLogOp op = readOp(); if (op == null) { return false; } if (op.getTransactionId() >= txid) { cachedOp = op; return true; } } }
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Skip edit log operations up to a given transaction ID, or until the end of the edit log is reached. After this function returns, the next call to readOp will return either end-of-file (null) or a transaction with a txid equal to or higher than the one we asked for. @param txid The transaction ID to read up until. ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/EditLogInputStream.java#L124-L135
119,557
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SkipBadRecords.java
SkipBadRecords.getSkipOutputPath
public static Path getSkipOutputPath(Configuration conf) { String name = conf.get(OUT_PATH); if(name!=null) { if("none".equals(name)) { return null; } return new Path(name); } Path outPath = FileOutputFormat.getOutputPath(new JobConf(conf)); return outPath==null ? null : n...
java
public static Path getSkipOutputPath(Configuration conf) { String name = conf.get(OUT_PATH); if(name!=null) { if("none".equals(name)) { return null; } return new Path(name); } Path outPath = FileOutputFormat.getOutputPath(new JobConf(conf)); return outPath==null ? null : n...
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Get the directory to which skipped records are written. By default it is the sub directory of the output _logs directory. User can stop writing skipped records by setting the value null. @param conf the configuration. @return path skip output directory. Null is returned if this is not set and output directory is also ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SkipBadRecords.java#L200-L211
119,558
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/SkipBadRecords.java
SkipBadRecords.setSkipOutputPath
public static void setSkipOutputPath(JobConf conf, Path path) { String pathStr = null; if(path==null) { pathStr = "none"; } else { pathStr = path.toString(); } conf.set(OUT_PATH, pathStr); }
java
public static void setSkipOutputPath(JobConf conf, Path path) { String pathStr = null; if(path==null) { pathStr = "none"; } else { pathStr = path.toString(); } conf.set(OUT_PATH, pathStr); }
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Set the directory to which skipped records are written. By default it is the sub directory of the output _logs directory. User can stop writing skipped records by setting the value null. @param conf the configuration. @param path skip output directory path
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/SkipBadRecords.java#L221-L229
119,559
facebookarchive/hadoop-20
src/mapred/org/apache/hadoop/mapred/MergeSorter.java
MergeSorter.sort
public RawKeyValueIterator sort() { MergeSort m = new MergeSort(this); int count = super.count; if (count == 0) return null; int [] pointers = super.pointers; int [] pointersCopy = new int[count]; System.arraycopy(pointers, 0, pointersCopy, 0, count); m.mergeSort(pointers, pointersCopy, 0, c...
java
public RawKeyValueIterator sort() { MergeSort m = new MergeSort(this); int count = super.count; if (count == 0) return null; int [] pointers = super.pointers; int [] pointersCopy = new int[count]; System.arraycopy(pointers, 0, pointersCopy, 0, count); m.mergeSort(pointers, pointersCopy, 0, c...
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The sort method derived from BasicTypeSorterBase and overridden here
[ "The", "sort", "method", "derived", "from", "BasicTypeSorterBase", "and", "overridden", "here" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/mapred/org/apache/hadoop/mapred/MergeSorter.java#L41-L51
119,560
facebookarchive/hadoop-20
src/contrib/corona/src/java/org/apache/hadoop/corona/ResourceRequestInfo.java
ResourceRequestInfo.write
public void write(JsonGenerator jsonGenerator) throws IOException { // We neither need the list of RequestedNodes, nodes, nor excludedHosts, // because we can reconstruct them from the request object jsonGenerator.writeStartObject(); jsonGenerator.writeObjectField("request", request); jsonGenerator....
java
public void write(JsonGenerator jsonGenerator) throws IOException { // We neither need the list of RequestedNodes, nodes, nor excludedHosts, // because we can reconstruct them from the request object jsonGenerator.writeStartObject(); jsonGenerator.writeObjectField("request", request); jsonGenerator....
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This method writes the ResourceRequestInfo instance to disk @param jsonGenerator The JsonGenerator instance being used to write the JSON to disk @throws IOException
[ "This", "method", "writes", "the", "ResourceRequestInfo", "instance", "to", "disk" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/corona/src/java/org/apache/hadoop/corona/ResourceRequestInfo.java#L100-L106
119,561
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FSOutputSummer.java
FSOutputSummer.write
public synchronized void write(int b) throws IOException { eventStartWrite(); try { sum.update(b); buf[count++] = (byte) b; if (bytesSentInChunk + count == buf.length) { flushBuffer(true, shouldKeepPartialChunkData()); } } finally { eventEndWrite(); } }
java
public synchronized void write(int b) throws IOException { eventStartWrite(); try { sum.update(b); buf[count++] = (byte) b; if (bytesSentInChunk + count == buf.length) { flushBuffer(true, shouldKeepPartialChunkData()); } } finally { eventEndWrite(); } }
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Write one byte
[ "Write", "one", "byte" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FSOutputSummer.java#L66-L78
119,562
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FSOutputSummer.java
FSOutputSummer.write1
private int write1(byte b[], int off, int len) throws IOException { eventStartWrite(); try { if(count==0 && bytesSentInChunk + len>=buf.length) { // local buffer is empty and user data can fill the current chunk // checksum and output data final int length = buf.length - bytesSent...
java
private int write1(byte b[], int off, int len) throws IOException { eventStartWrite(); try { if(count==0 && bytesSentInChunk + len>=buf.length) { // local buffer is empty and user data can fill the current chunk // checksum and output data final int length = buf.length - bytesSent...
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Write a portion of an array, flushing to the underlying stream at most once if necessary.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FSOutputSummer.java#L118-L147
119,563
facebookarchive/hadoop-20
src/core/org/apache/hadoop/fs/FSOutputSummer.java
FSOutputSummer.writeChecksumChunk
private void writeChecksumChunk(byte b[], int off, int len, boolean keep) throws IOException { int tempChecksum = (int)sum.getValue(); if (!keep) { sum.reset(); } int2byte(tempChecksum, checksum); writeChunk(b, off, len, checksum); }
java
private void writeChecksumChunk(byte b[], int off, int len, boolean keep) throws IOException { int tempChecksum = (int)sum.getValue(); if (!keep) { sum.reset(); } int2byte(tempChecksum, checksum); writeChunk(b, off, len, checksum); }
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Generate checksum for the data chunk and output data chunk & checksum to the underlying output stream. If keep is true then keep the current checksum intact, do not reset it.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/fs/FSOutputSummer.java#L175-L183
119,564
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java
INode.getUserName
public String getUserName() { int n = (int)PermissionStatusFormat.USER.retrieve(permission); return SerialNumberManager.INSTANCE.getUser(n); }
java
public String getUserName() { int n = (int)PermissionStatusFormat.USER.retrieve(permission); return SerialNumberManager.INSTANCE.getUser(n); }
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Get user name
[ "Get", "user", "name" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java#L183-L186
119,565
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java
INode.getGroupName
public String getGroupName() { int n = (int)PermissionStatusFormat.GROUP.retrieve(permission); return SerialNumberManager.INSTANCE.getGroup(n); }
java
public String getGroupName() { int n = (int)PermissionStatusFormat.GROUP.retrieve(permission); return SerialNumberManager.INSTANCE.getGroup(n); }
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Get group name
[ "Get", "group", "name" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java#L193-L196
119,566
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java
INode.enforceRegularStorageINode
public static void enforceRegularStorageINode(INodeFile inode, String msg) throws IOException { if (inode.getStorageType() != StorageType.REGULAR_STORAGE) { LOG.error(msg); throw new IOException(msg); } }
java
public static void enforceRegularStorageINode(INodeFile inode, String msg) throws IOException { if (inode.getStorageType() != StorageType.REGULAR_STORAGE) { LOG.error(msg); throw new IOException(msg); } }
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Verify if file is regular storage, otherwise throw an exception
[ "Verify", "if", "file", "is", "regular", "storage", "otherwise", "throw", "an", "exception" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java#L251-L257
119,567
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java
INode.getPathComponents
static byte[][] getPathComponents(String[] strings) { if (strings.length == 0) { return new byte[][]{null}; } byte[][] bytes = new byte[strings.length][]; for (int i = 0; i < strings.length; i++) bytes[i] = DFSUtil.string2Bytes(strings[i]); return bytes; }
java
static byte[][] getPathComponents(String[] strings) { if (strings.length == 0) { return new byte[][]{null}; } byte[][] bytes = new byte[strings.length][]; for (int i = 0; i < strings.length; i++) bytes[i] = DFSUtil.string2Bytes(strings[i]); return bytes; }
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Convert strings to byte arrays for path components.
[ "Convert", "strings", "to", "byte", "arrays", "for", "path", "components", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java#L404-L412
119,568
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java
INode.getPathNames
static String[] getPathNames(String path) { if (path == null || !path.startsWith(Path.SEPARATOR)) { return null; } return StringUtils.split(path, Path.SEPARATOR_CHAR); }
java
static String[] getPathNames(String path) { if (path == null || !path.startsWith(Path.SEPARATOR)) { return null; } return StringUtils.split(path, Path.SEPARATOR_CHAR); }
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Breaks file path into names. @param path @return array of names
[ "Breaks", "file", "path", "into", "names", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java#L419-L424
119,569
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java
INode.compareTo
public final int compareTo(byte[] name2) { if (name == name2) return 0; int len1 = (name == null ? 0 : name.length); int len2 = (name2 == null ? 0 : name2.length); int n = Math.min(len1, len2); byte b1, b2; for (int i = 0; i < n; i++) { b1 = name[i]; b2 = name2[i]; if (b1...
java
public final int compareTo(byte[] name2) { if (name == name2) return 0; int len1 = (name == null ? 0 : name.length); int len2 = (name2 == null ? 0 : name2.length); int n = Math.min(len1, len2); byte b1, b2; for (int i = 0; i < n; i++) { b1 = name[i]; b2 = name2[i]; if (b1...
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Compare names of the inodes @return a negative integer, zero, or a positive integer
[ "Compare", "names", "of", "the", "inodes" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java#L446-L460
119,570
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java
INode.newINode
static INode newINode(long id, PermissionStatus permissions, BlockInfo[] blocks, short replication, long modificationTime, long atime, long nsQuota, lo...
java
static INode newINode(long id, PermissionStatus permissions, BlockInfo[] blocks, short replication, long modificationTime, long atime, long nsQuota, lo...
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Create an INode; the inode's name is not set yet @param id inode id @param permissions permissions @param blocks blocks if a file @param symlink symblic link if a symbolic link @param replication replication factor @param modificationTime modification time @param atime access time @param nsQuota namespace quota @param...
[ "Create", "an", "INode", ";", "the", "inode", "s", "name", "is", "not", "set", "yet" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INode.java#L519-L574
119,571
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/DataBlockScannerSet.java
DataBlockScannerSet.waitForUpgradeDone
private void waitForUpgradeDone(int namespaceId) { UpgradeManagerDatanode um = datanode.getUpgradeManager(namespaceId); while (!um.isUpgradeCompleted()) { try { datanode.updateAndReportThreadLiveness(BackgroundThread.BLOCK_SCANNER); Thread.sleep(5000); LOG.info("sleeping .............
java
private void waitForUpgradeDone(int namespaceId) { UpgradeManagerDatanode um = datanode.getUpgradeManager(namespaceId); while (!um.isUpgradeCompleted()) { try { datanode.updateAndReportThreadLiveness(BackgroundThread.BLOCK_SCANNER); Thread.sleep(5000); LOG.info("sleeping .............
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Wait for upgrading done for the given namespace
[ "Wait", "for", "upgrading", "done", "for", "the", "given", "namespace" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/DataBlockScannerSet.java#L130-L142
119,572
facebookarchive/hadoop-20
src/hdfs/org/apache/hadoop/hdfs/server/datanode/DataBlockScannerSet.java
DataBlockScannerSet.getNextNamespaceSliceScanner
private DataBlockScanner getNextNamespaceSliceScanner(int currentNamespaceId) { Integer nextNsId = null; while ((nextNsId == null) && datanode.shouldRun && !blockScannerThread.isInterrupted()) { waitForOneNameSpaceUp(); synchronized (this) { if (getNamespaceSetSize() > 0) { ...
java
private DataBlockScanner getNextNamespaceSliceScanner(int currentNamespaceId) { Integer nextNsId = null; while ((nextNsId == null) && datanode.shouldRun && !blockScannerThread.isInterrupted()) { waitForOneNameSpaceUp(); synchronized (this) { if (getNamespaceSetSize() > 0) { ...
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Find next namespaceId to scan. There should be only one current verification log file. Find which namespace contains the current verification log file and that is used as the starting namespaceId. If no current files are found start with first namespace. However, if more than one current files are found, the one with l...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/hdfs/org/apache/hadoop/hdfs/server/datanode/DataBlockScannerSet.java#L152-L214
119,573
facebookarchive/hadoop-20
src/core/org/apache/hadoop/util/bloom/HashFunction.java
HashFunction.hash
public int[] hash(Key k){ byte[] b = k.getBytes(); if (b == null) { throw new NullPointerException("buffer reference is null"); } if (b.length == 0) { throw new IllegalArgumentException("key length must be > 0"); } int[] result = new int[nbHash]; for (int i = 0,...
java
public int[] hash(Key k){ byte[] b = k.getBytes(); if (b == null) { throw new NullPointerException("buffer reference is null"); } if (b.length == 0) { throw new IllegalArgumentException("key length must be > 0"); } int[] result = new int[nbHash]; for (int i = 0,...
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Hashes a specified key into several integers. @param k The specified key. @return The array of hashed values.
[ "Hashes", "a", "specified", "key", "into", "several", "integers", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/util/bloom/HashFunction.java#L104-L118
119,574
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.createBaseListener
protected Connector createBaseListener(Configuration conf) throws IOException { Connector ret; if (conf.getBoolean("hadoop.http.bio", false)) { SocketConnector conn = new SocketConnector(); conn.setAcceptQueueSize(4096); conn.setResolveNames(false); ret = conn; } else { S...
java
protected Connector createBaseListener(Configuration conf) throws IOException { Connector ret; if (conf.getBoolean("hadoop.http.bio", false)) { SocketConnector conn = new SocketConnector(); conn.setAcceptQueueSize(4096); conn.setResolveNames(false); ret = conn; } else { S...
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Create a required listener for the Jetty instance listening on the port provided. This wrapper and all subclasses must create at least one listener.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L168-L187
119,575
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.getFilterInitializers
private static FilterInitializer[] getFilterInitializers(Configuration conf) { if (conf == null) { return null; } Class<?>[] classes = conf.getClasses(FILTER_INITIALIZER_PROPERTY); if (classes == null) { return null; } FilterInitializer[] initializers = new FilterInitializer[classe...
java
private static FilterInitializer[] getFilterInitializers(Configuration conf) { if (conf == null) { return null; } Class<?>[] classes = conf.getClasses(FILTER_INITIALIZER_PROPERTY); if (classes == null) { return null; } FilterInitializer[] initializers = new FilterInitializer[classe...
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Get an array of FilterConfiguration specified in the conf
[ "Get", "an", "array", "of", "FilterConfiguration", "specified", "in", "the", "conf" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L190-L206
119,576
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.addDefaultApps
protected void addDefaultApps(ContextHandlerCollection parent, final String appDir) throws IOException { // set up the context for "/logs/" if "hadoop.log.dir" property is defined. String logDir = System.getProperty("hadoop.log.dir"); if (logDir != null) { Context logContext = new Context(paren...
java
protected void addDefaultApps(ContextHandlerCollection parent, final String appDir) throws IOException { // set up the context for "/logs/" if "hadoop.log.dir" property is defined. String logDir = System.getProperty("hadoop.log.dir"); if (logDir != null) { Context logContext = new Context(paren...
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Add default apps. @param appDir The application directory @throws IOException
[ "Add", "default", "apps", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L213-L228
119,577
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.addDefaultServlets
protected void addDefaultServlets() { // set up default servlets addServlet("stacks", "/stacks", StackServlet.class); addServlet("logLevel", "/logLevel", LogLevel.Servlet.class); addServlet("jmx", "/jmx", JMXJsonServlet.class); addServlet("metrics", "/metrics", MetricsServlet.class); addServlet(...
java
protected void addDefaultServlets() { // set up default servlets addServlet("stacks", "/stacks", StackServlet.class); addServlet("logLevel", "/logLevel", LogLevel.Servlet.class); addServlet("jmx", "/jmx", JMXJsonServlet.class); addServlet("metrics", "/metrics", MetricsServlet.class); addServlet(...
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Add default servlets.
[ "Add", "default", "servlets", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L233-L240
119,578
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.addContext
protected void addContext(String pathSpec, String dir, boolean isFiltered) throws IOException { if (0 == webServer.getHandlers().length) { throw new RuntimeException("Couldn't find handler"); } WebAppContext webAppCtx = new WebAppContext(); webAppCtx.setContextPath(pathSpec); webAppCtx.setWar(...
java
protected void addContext(String pathSpec, String dir, boolean isFiltered) throws IOException { if (0 == webServer.getHandlers().length) { throw new RuntimeException("Couldn't find handler"); } WebAppContext webAppCtx = new WebAppContext(); webAppCtx.setContextPath(pathSpec); webAppCtx.setWar(...
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Add a context @param pathSpec The path spec for the context @param dir The directory containing the context @param isFiltered if true, the servlet is added to the filter path mapping @throws IOException
[ "Add", "a", "context" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L255-L263
119,579
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.addServlet
public void addServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { addInternalServlet(name, pathSpec, clazz); addFilterPathMapping(pathSpec, webAppContext); }
java
public void addServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { addInternalServlet(name, pathSpec, clazz); addFilterPathMapping(pathSpec, webAppContext); }
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Add a servlet in the server. @param name The name of the servlet (can be passed as null) @param pathSpec The path spec for the servlet @param clazz The servlet class
[ "Add", "a", "servlet", "in", "the", "server", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L281-L285
119,580
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.addInternalServlet
@Deprecated public void addInternalServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { ServletHolder holder = new ServletHolder(clazz); if (name != null) { holder.setName(name); } webAppContext.addServlet(holder, pathSpec); }
java
@Deprecated public void addInternalServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { ServletHolder holder = new ServletHolder(clazz); if (name != null) { holder.setName(name); } webAppContext.addServlet(holder, pathSpec); }
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Add an internal servlet in the server. @param name The name of the servlet (can be passed as null) @param pathSpec The path spec for the servlet @param clazz The servlet class @deprecated this is a temporary method
[ "Add", "an", "internal", "servlet", "in", "the", "server", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L294-L302
119,581
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.removeServlet
public void removeServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { if(clazz == null) { return; } //remove the filters from filterPathMapping ServletHandler servletHandler = webAppContext.getServletHandler(); List<FilterMapping> newFilterMappings = new ArrayLi...
java
public void removeServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { if(clazz == null) { return; } //remove the filters from filterPathMapping ServletHandler servletHandler = webAppContext.getServletHandler(); List<FilterMapping> newFilterMappings = new ArrayLi...
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Remove a servlet in the server. @param name The name of the servlet (can be passed as null) @param pathSpec The path spec for the servlet @param clazz The servlet class
[ "Remove", "a", "servlet", "in", "the", "server", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L310-L332
119,582
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.removeInternalServlet
public void removeInternalServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { if(null == clazz) { return; } ServletHandler servletHandler = webAppContext.getServletHandler(); List<ServletHolder> newServletHolders = new ArrayList<ServletHolder>(); List<Servle...
java
public void removeInternalServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) { if(null == clazz) { return; } ServletHandler servletHandler = webAppContext.getServletHandler(); List<ServletHolder> newServletHolders = new ArrayList<ServletHolder>(); List<Servle...
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Remove an internal servlet in the server. @param clazz The servlet class
[ "Remove", "an", "internal", "servlet", "in", "the", "server", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L338-L398
119,583
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.defineFilter
protected void defineFilter(Context ctx, String name, String classname, Map<String,String> parameters, String[] urls) { FilterHolder holder = new FilterHolder(); holder.setName(name); holder.setClassName(classname); holder.setInitParameters(parameters); FilterMapping fmap = new FilterMapping(...
java
protected void defineFilter(Context ctx, String name, String classname, Map<String,String> parameters, String[] urls) { FilterHolder holder = new FilterHolder(); holder.setName(name); holder.setClassName(classname); holder.setInitParameters(parameters); FilterMapping fmap = new FilterMapping(...
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Define a filter for a context and set up default url mappings.
[ "Define", "a", "filter", "for", "a", "context", "and", "set", "up", "default", "url", "mappings", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L432-L445
119,584
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.addFilterPathMapping
protected void addFilterPathMapping(String pathSpec, Context webAppCtx) { ServletHandler handler = webAppCtx.getServletHandler(); for(String name : filterNames) { FilterMapping fmap = new FilterMapping(); fmap.setPathSpec(pathSpec); fmap.setFilterName(name); fmap.setDispatches(Hand...
java
protected void addFilterPathMapping(String pathSpec, Context webAppCtx) { ServletHandler handler = webAppCtx.getServletHandler(); for(String name : filterNames) { FilterMapping fmap = new FilterMapping(); fmap.setPathSpec(pathSpec); fmap.setFilterName(name); fmap.setDispatches(Hand...
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Add the path spec to the filter path mapping. @param pathSpec The path spec @param webAppCtx The WebApplicationContext to add to
[ "Add", "the", "path", "spec", "to", "the", "filter", "path", "mapping", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L452-L462
119,585
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.getWebAppsPath
protected String getWebAppsPath() throws IOException { URL url = getClass().getClassLoader().getResource("webapps"); if (url == null) throw new IOException("webapps not found in CLASSPATH"); return url.toString(); }
java
protected String getWebAppsPath() throws IOException { URL url = getClass().getClassLoader().getResource("webapps"); if (url == null) throw new IOException("webapps not found in CLASSPATH"); return url.toString(); }
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Get the pathname to the webapps files. @return the pathname as a URL @throws IOException if 'webapps' directory cannot be found on CLASSPATH.
[ "Get", "the", "pathname", "to", "the", "webapps", "files", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L478-L483
119,586
facebookarchive/hadoop-20
src/core/org/apache/hadoop/http/HttpServer.java
HttpServer.stop
public void stop() throws Exception { listener.close(); webAppContext.clearAttributes(); webServer.removeHandler(webAppContext); webServer.stop(); }
java
public void stop() throws Exception { listener.close(); webAppContext.clearAttributes(); webServer.removeHandler(webAppContext); webServer.stop(); }
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stop the server
[ "stop", "the", "server" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/http/HttpServer.java#L679-L684
119,587
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.getAttribute
protected String getAttribute(String attributeName) { String factoryAttribute = contextName + "." + attributeName; return (String) factory.getAttribute(factoryAttribute); }
java
protected String getAttribute(String attributeName) { String factoryAttribute = contextName + "." + attributeName; return (String) factory.getAttribute(factoryAttribute); }
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Convenience method for subclasses to access factory attributes.
[ "Convenience", "method", "for", "subclasses", "to", "access", "factory", "attributes", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L124-L127
119,588
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.registerUpdater
public synchronized void registerUpdater(final Updater updater) { if (!updaters.containsKey(updater)) { updaters.put(updater, Boolean.TRUE); } }
java
public synchronized void registerUpdater(final Updater updater) { if (!updaters.containsKey(updater)) { updaters.put(updater, Boolean.TRUE); } }
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Registers a callback to be called at time intervals determined by the configuration. @param updater object to be run periodically; it should update some metrics records
[ "Registers", "a", "callback", "to", "be", "called", "at", "time", "intervals", "determined", "by", "the", "configuration", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L231-L235
119,589
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.startTimer
private synchronized void startTimer() { if (timer == null) { timer = new Timer("Timer thread for monitoring " + getContextName(), true); TimerTask task = new TimerTask() { public void run() { try { timerEvent(); } ...
java
private synchronized void startTimer() { if (timer == null) { timer = new Timer("Timer thread for monitoring " + getContextName(), true); TimerTask task = new TimerTask() { public void run() { try { timerEvent(); } ...
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Starts timer if it is not already started
[ "Starts", "timer", "if", "it", "is", "not", "already", "started" ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L253-L270
119,590
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.timerEvent
private void timerEvent() throws IOException { if (isMonitoring) { Collection<Updater> myUpdaters; synchronized (this) { myUpdaters = new ArrayList<Updater>(updaters.keySet()); } // Run all the registered updates without holding a lock // on this context for (Updater upda...
java
private void timerEvent() throws IOException { if (isMonitoring) { Collection<Updater> myUpdaters; synchronized (this) { myUpdaters = new ArrayList<Updater>(updaters.keySet()); } // Run all the registered updates without holding a lock // on this context for (Updater upda...
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Timer callback.
[ "Timer", "callback", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L285-L303
119,591
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.emitRecords
private synchronized void emitRecords() throws IOException { for (String recordName : bufferedData.keySet()) { RecordMap recordMap = bufferedData.get(recordName); synchronized (recordMap) { Set<Entry<TagMap, MetricMap>> entrySet = recordMap.entrySet (); for (Entry<TagMap, MetricMap>...
java
private synchronized void emitRecords() throws IOException { for (String recordName : bufferedData.keySet()) { RecordMap recordMap = bufferedData.get(recordName); synchronized (recordMap) { Set<Entry<TagMap, MetricMap>> entrySet = recordMap.entrySet (); for (Entry<TagMap, MetricMap>...
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Emits the records.
[ "Emits", "the", "records", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L308-L320
119,592
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.sum
private Number sum(Number a, Number b) { if (a instanceof Integer) { return Integer.valueOf(a.intValue() + b.intValue()); } else if (a instanceof Float) { return new Float(a.floatValue() + b.floatValue()); } else if (a instanceof Short) { return Short.valueOf((short)(a.shor...
java
private Number sum(Number a, Number b) { if (a instanceof Integer) { return Integer.valueOf(a.intValue() + b.intValue()); } else if (a instanceof Float) { return new Float(a.floatValue() + b.floatValue()); } else if (a instanceof Short) { return Short.valueOf((short)(a.shor...
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Adds two numbers, coercing the second to the type of the first.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L378-L399
119,593
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.parseAndSetPeriod
protected void parseAndSetPeriod(String attributeName) { String periodStr = getAttribute(attributeName); if (periodStr != null) { int period = 0; try { period = Integer.parseInt(periodStr); } catch (NumberFormatException nfe) { } if (period <= 0) { throw ne...
java
protected void parseAndSetPeriod(String attributeName) { String periodStr = getAttribute(attributeName); if (periodStr != null) { int period = 0; try { period = Integer.parseInt(periodStr); } catch (NumberFormatException nfe) { } if (period <= 0) { throw ne...
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If a period is set in the attribute passed in, override the default with it.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L441-L454
119,594
facebookarchive/hadoop-20
src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java
AbstractMetricsContext.getAllRecords
@Override public synchronized Map<String, Collection<OutputRecord>> getAllRecords() { Map<String, Collection<OutputRecord>> out = new TreeMap<String, Collection<OutputRecord>>(); for (String recordName : bufferedData.keySet()) { RecordMap recordMap = bufferedData.get(recordName); synchronized...
java
@Override public synchronized Map<String, Collection<OutputRecord>> getAllRecords() { Map<String, Collection<OutputRecord>> out = new TreeMap<String, Collection<OutputRecord>>(); for (String recordName : bufferedData.keySet()) { RecordMap recordMap = bufferedData.get(recordName); synchronized...
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Retrieves all the records managed by this MetricsContext. Useful for monitoring systems that are polling-based. @return A non-null collection of all monitoring records.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/core/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java#L461-L477
119,595
facebookarchive/hadoop-20
src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java
SimulatorTaskTracker.accept
@Override public List<SimulatorEvent> accept(SimulatorEvent event) { if (LOG.isDebugEnabled()) { LOG.debug("Accepted event " + event); } if (event instanceof HeartbeatEvent) { return processHeartbeatEvent((HeartbeatEvent)event); } else if (event instanceof TaskAttemptCompletionEvent) { ...
java
@Override public List<SimulatorEvent> accept(SimulatorEvent event) { if (LOG.isDebugEnabled()) { LOG.debug("Accepted event " + event); } if (event instanceof HeartbeatEvent) { return processHeartbeatEvent((HeartbeatEvent)event); } else if (event instanceof TaskAttemptCompletionEvent) { ...
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Processes a simulation event. @param event the event to process, should be an instance of HeartbeatEvent or TaskAttemptCompletionEvent @return the list of new events generated in response
[ "Processes", "a", "simulation", "event", "." ]
2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java#L132-L146
119,596
facebookarchive/hadoop-20
src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java
SimulatorTaskTracker.init
public List<SimulatorEvent> init(long when) { LOG.debug("TaskTracker starting up, current simulation time=" + when); return Collections.<SimulatorEvent>singletonList(new HeartbeatEvent(this, when)); }
java
public List<SimulatorEvent> init(long when) { LOG.debug("TaskTracker starting up, current simulation time=" + when); return Collections.<SimulatorEvent>singletonList(new HeartbeatEvent(this, when)); }
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Called once at the start of the simulation. @param when Time when the task tracker starts. @return the initial HeartbeatEvent for ourselves.
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java#L154-L158
119,597
facebookarchive/hadoop-20
src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java
SimulatorTaskTracker.finishRunningTask
private void finishRunningTask(TaskStatus finalStatus, long now) { TaskAttemptID taskId = finalStatus.getTaskID(); if (LOG.isDebugEnabled()) { LOG.debug("Finishing running task id=" + taskId + ", now=" + now); } SimulatorTaskInProgress tip = tasks.get(taskId); if (tip == null) { throw n...
java
private void finishRunningTask(TaskStatus finalStatus, long now) { TaskAttemptID taskId = finalStatus.getTaskID(); if (LOG.isDebugEnabled()) { LOG.debug("Finishing running task id=" + taskId + ", now=" + now); } SimulatorTaskInProgress tip = tasks.get(taskId); if (tip == null) { throw n...
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Stops running a task attempt on the task tracker. It also updates the number of available slots accordingly. @param finalStatus the TaskStatus containing the task id and final status of the task attempt. This rountine asserts a lot of the finalStatus params, in case it is coming from a task attempt completion event se...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java#L171-L238
119,598
facebookarchive/hadoop-20
src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java
SimulatorTaskTracker.processTaskAttemptCompletionEvent
private List<SimulatorEvent> processTaskAttemptCompletionEvent( TaskAttemptCompletionEvent event) { if (LOG.isDebugEnabled()) { LOG.debug("Processing task attempt completion event" + event); } long now = event.getTimeStamp(); TaskStatus finalStatus = event.getStatus(); TaskAttempt...
java
private List<SimulatorEvent> processTaskAttemptCompletionEvent( TaskAttemptCompletionEvent event) { if (LOG.isDebugEnabled()) { LOG.debug("Processing task attempt completion event" + event); } long now = event.getTimeStamp(); TaskStatus finalStatus = event.getStatus(); TaskAttempt...
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Records that a task attempt has completed. Ignores the event for tasks that got killed after the creation of the completion event. @param event the TaskAttemptCompletionEvent the tracker sent to itself @return the list of response events, empty
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java#L247-L261
119,599
facebookarchive/hadoop-20
src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java
SimulatorTaskTracker.createTaskAttemptCompletionEvent
private TaskAttemptCompletionEvent createTaskAttemptCompletionEvent( SimulatorTaskInProgress tip, long now) { // We need to clone() status as we modify and it goes into an Event TaskStatus status = (TaskStatus)tip.getTaskStatus().clone(); long delta = tip.getUserSpaceR...
java
private TaskAttemptCompletionEvent createTaskAttemptCompletionEvent( SimulatorTaskInProgress tip, long now) { // We need to clone() status as we modify and it goes into an Event TaskStatus status = (TaskStatus)tip.getTaskStatus().clone(); long delta = tip.getUserSpaceR...
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Creates a signal for itself marking the completion of a task attempt. It assumes that the task attempt hasn't made any progress in the user space code so far, i.e. it is called right at launch for map tasks and immediately after all maps completed for reduce tasks. @param tip the simulator task in progress @param now ...
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2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4
https://github.com/facebookarchive/hadoop-20/blob/2a29bc6ecf30edb1ad8dbde32aa49a317b4d44f4/src/contrib/mumak/src/java/org/apache/hadoop/mapred/SimulatorTaskTracker.java#L274-L291