HDFS-2073. Add @Override annotation to NameNode. Contributed by Suresh Srinivas.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1136230 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Suresh Srinivas
parent
4c290b51fa
commit
53268e2155
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@ -508,6 +508,8 @@ Trunk (unreleased changes)
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HDFS-2046. Force entropy to come from non-true random for tests. (todd)
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HDFS-2073. Add @Override annotation to NameNode. (suresh)
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OPTIMIZATIONS
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HDFS-1458. Improve checkpoint performance by avoiding unnecessary image
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@ -194,7 +194,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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}
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@Override
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@Override // VersionedProtocol
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public ProtocolSignature getProtocolSignature(String protocol,
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long clientVersion, int clientMethodsHash) throws IOException {
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return ProtocolSignature.getProtocolSignature(
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@ -694,7 +694,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return namesystem.getBlocks(datanode, size);
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}
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/** {@inheritDoc} */
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@Override // NamenodeProtocol
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public ExportedBlockKeys getBlockKeys() throws IOException {
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return namesystem.getBlockKeys();
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}
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@ -742,39 +742,34 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return namesystem.getEditLogSize();
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}
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/*
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* Active name-node cannot journal.
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*/
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@Override // NamenodeProtocol
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public void journal(NamenodeRegistration registration,
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int jAction,
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int length,
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byte[] args) throws IOException {
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// Active name-node cannot journal.
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throw new UnsupportedActionException("journal");
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}
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/////////////////////////////////////////////////////
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// ClientProtocol
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/////////////////////////////////////////////////////
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@Override // ClientProtocol
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public Token<DelegationTokenIdentifier> getDelegationToken(Text renewer)
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throws IOException {
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return namesystem.getDelegationToken(renewer);
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}
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@Override
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@Override // ClientProtocol
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public long renewDelegationToken(Token<DelegationTokenIdentifier> token)
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throws InvalidToken, IOException {
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return namesystem.renewDelegationToken(token);
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}
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@Override
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@Override // ClientProtocol
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public void cancelDelegationToken(Token<DelegationTokenIdentifier> token)
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throws IOException {
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namesystem.cancelDelegationToken(token);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public LocatedBlocks getBlockLocations(String src,
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long offset,
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long length)
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@ -784,20 +779,12 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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src, offset, length);
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}
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private static String getClientMachine() {
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String clientMachine = Server.getRemoteAddress();
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if (clientMachine == null) {
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clientMachine = "";
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}
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return clientMachine;
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public FsServerDefaults getServerDefaults() throws IOException {
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return namesystem.getServerDefaults();
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public void create(String src,
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FsPermission masked,
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String clientName,
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@ -822,7 +809,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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metrics.incrCreateFileOps();
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public LocatedBlock append(String src, String clientName)
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throws IOException {
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String clientMachine = getClientMachine();
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@ -835,31 +822,31 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return info;
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public boolean recoverLease(String src, String clientName) throws IOException {
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String clientMachine = getClientMachine();
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return namesystem.recoverLease(src, clientName, clientMachine);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public boolean setReplication(String src, short replication)
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throws IOException {
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return namesystem.setReplication(src, replication);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public void setPermission(String src, FsPermission permissions)
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throws IOException {
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namesystem.setPermission(src, permissions);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public void setOwner(String src, String username, String groupname)
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throws IOException {
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namesystem.setOwner(src, username, groupname);
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}
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@Override
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@Override // ClientProtocol
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public LocatedBlock addBlock(String src,
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String clientName,
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ExtendedBlock previous,
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@ -883,7 +870,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return locatedBlock;
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}
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@Override
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@Override // ClientProtocol
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public LocatedBlock getAdditionalDatanode(final String src, final ExtendedBlock blk,
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final DatanodeInfo[] existings, final DatanodeInfo[] excludes,
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final int numAdditionalNodes, final String clientName
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@ -924,7 +911,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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}
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public boolean complete(String src, String clientName, ExtendedBlock last)
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throws IOException {
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if(stateChangeLog.isDebugEnabled()) {
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@ -940,6 +927,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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* mark the block as corrupt. In the future we might
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* check the blocks are actually corrupt.
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*/
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@Override
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public void reportBadBlocks(LocatedBlock[] blocks) throws IOException {
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stateChangeLog.info("*DIR* NameNode.reportBadBlocks");
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for (int i = 0; i < blocks.length; i++) {
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@ -952,22 +940,21 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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}
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}
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/** {@inheritDoc} */
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@Override
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@Override // ClientProtocol
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public LocatedBlock updateBlockForPipeline(ExtendedBlock block, String clientName)
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throws IOException {
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return namesystem.updateBlockForPipeline(block, clientName);
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}
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@Override
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@Override // ClientProtocol
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public void updatePipeline(String clientName, ExtendedBlock oldBlock,
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ExtendedBlock newBlock, DatanodeID[] newNodes)
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throws IOException {
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namesystem.updatePipeline(clientName, oldBlock, newBlock, newNodes);
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}
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/** {@inheritDoc} */
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@Override // DatanodeProtocol
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public void commitBlockSynchronization(ExtendedBlock block,
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long newgenerationstamp, long newlength,
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boolean closeFile, boolean deleteblock, DatanodeID[] newtargets)
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@ -976,14 +963,14 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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newgenerationstamp, newlength, closeFile, deleteblock, newtargets);
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}
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@Override // ClientProtocol
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public long getPreferredBlockSize(String filename)
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throws IOException {
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return namesystem.getPreferredBlockSize(filename);
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}
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/** {@inheritDoc} */
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@Deprecated
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@Override
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@Override // ClientProtocol
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public boolean rename(String src, String dst) throws IOException {
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if(stateChangeLog.isDebugEnabled()) {
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stateChangeLog.debug("*DIR* NameNode.rename: " + src + " to " + dst);
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@ -999,15 +986,12 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return ret;
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}
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/**
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* {@inheritDoc}
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*/
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@Override // ClientProtocol
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public void concat(String trg, String[] src) throws IOException {
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namesystem.concat(trg, src);
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}
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/** {@inheritDoc} */
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@Override
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@Override // ClientProtocol
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public void rename(String src, String dst, Options.Rename... options)
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throws IOException {
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if(stateChangeLog.isDebugEnabled()) {
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@ -1021,14 +1005,13 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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metrics.incrFilesRenamed();
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}
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/**
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*/
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@Deprecated
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@Override // ClientProtocol
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public boolean delete(String src) throws IOException {
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return delete(src, true);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public boolean delete(String src, boolean recursive) throws IOException {
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if (stateChangeLog.isDebugEnabled()) {
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stateChangeLog.debug("*DIR* Namenode.delete: src=" + src
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@ -1044,7 +1027,6 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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* Check path length does not exceed maximum. Returns true if
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* length and depth are okay. Returns false if length is too long
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* or depth is too great.
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*
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*/
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private boolean checkPathLength(String src) {
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Path srcPath = new Path(src);
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@ -1052,7 +1034,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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srcPath.depth() <= MAX_PATH_DEPTH);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public boolean mkdirs(String src, FsPermission masked, boolean createParent)
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throws IOException {
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if(stateChangeLog.isDebugEnabled()) {
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@ -1067,15 +1049,12 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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null, masked), createParent);
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}
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/**
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*/
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@Override // ClientProtocol
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public void renewLease(String clientName) throws IOException {
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namesystem.renewLease(clientName);
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}
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/**
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*/
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@Override
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@Override // ClientProtocol
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public DirectoryListing getListing(String src, byte[] startAfter,
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boolean needLocation)
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throws IOException {
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@ -1088,24 +1067,13 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return files;
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}
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/**
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* Get the file info for a specific file.
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* @param src The string representation of the path to the file
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* @return object containing information regarding the file
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* or null if file not found
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*/
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@Override // ClientProtocol
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public HdfsFileStatus getFileInfo(String src) throws IOException {
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metrics.incrFileInfoOps();
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return namesystem.getFileInfo(src, true);
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}
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/**
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* Get the file info for a specific file. If the path refers to a
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* symlink then the FileStatus of the symlink is returned.
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* @param src The string representation of the path to the file
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* @return object containing information regarding the file
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* or null if file not found
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*/
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@Override // ClientProtocol
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public HdfsFileStatus getFileLinkInfo(String src) throws IOException {
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metrics.incrFileInfoOps();
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return namesystem.getFileInfo(src, false);
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@ -1116,8 +1084,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return namesystem.getStats();
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}
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/**
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*/
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@Override // ClientProtocol
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public DatanodeInfo[] getDatanodeReport(DatanodeReportType type)
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throws IOException {
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DatanodeInfo results[] = namesystem.datanodeReport(type);
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@ -1127,7 +1094,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return results;
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}
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@Override
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@Override // ClientProtocol
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public boolean setSafeMode(SafeModeAction action) throws IOException {
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return namesystem.setSafeMode(action);
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}
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@ -1139,73 +1106,58 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return namesystem.isInSafeMode();
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}
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@Override
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@Override // ClientProtocol
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public boolean restoreFailedStorage(String arg)
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throws AccessControlException {
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return namesystem.restoreFailedStorage(arg);
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}
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@Override
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@Override // ClientProtocol
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public void saveNamespace() throws IOException {
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namesystem.saveNamespace();
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}
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/**
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* Refresh the list of datanodes that the namenode should allow to
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* connect. Re-reads conf by creating new HdfsConfiguration object and
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* uses the files list in the configuration to update the list.
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*/
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@Override // ClientProtocol
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public void refreshNodes() throws IOException {
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namesystem.refreshNodes(new HdfsConfiguration());
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}
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/**
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* Returns the size of the current edit log.
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*/
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@Deprecated
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@Deprecated // NamenodeProtocol
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public long getEditLogSize() throws IOException {
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return namesystem.getEditLogSize();
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}
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/**
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* Roll the edit log.
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*/
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@Deprecated
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@Override // NamenodeProtocol
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public CheckpointSignature rollEditLog() throws IOException {
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return namesystem.rollEditLog();
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}
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/**
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* Roll the image
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*/
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@Deprecated @Override
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@Deprecated
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@Override // NamenodeProtocol
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public void rollFsImage(CheckpointSignature sig) throws IOException {
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namesystem.rollFSImage(sig);
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}
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@Override // ClientProtocol
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public void finalizeUpgrade() throws IOException {
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namesystem.finalizeUpgrade();
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}
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@Override // ClientProtocol
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public UpgradeStatusReport distributedUpgradeProgress(UpgradeAction action)
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throws IOException {
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return namesystem.distributedUpgradeProgress(action);
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}
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/**
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* Dumps namenode state into specified file
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*/
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@Override // ClientProtocol
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public void metaSave(String filename) throws IOException {
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namesystem.metaSave(filename);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public CorruptFileBlocks
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listCorruptFileBlocks(String path, String cookie)
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throws IOException {
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@Override // ClientProtocol
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public CorruptFileBlocks listCorruptFileBlocks(String path, String cookie)
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throws IOException {
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Collection<FSNamesystem.CorruptFileBlockInfo> fbs =
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namesystem.listCorruptFileBlocks(path, cookie);
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@ -1219,32 +1171,31 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return new CorruptFileBlocks(files, lastCookie);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public ContentSummary getContentSummary(String path) throws IOException {
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return namesystem.getContentSummary(path);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public void setQuota(String path, long namespaceQuota, long diskspaceQuota)
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throws IOException {
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namesystem.setQuota(path, namespaceQuota, diskspaceQuota);
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}
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/** {@inheritDoc} */
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@Override // ClientProtocol
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public void fsync(String src, String clientName) throws IOException {
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namesystem.fsync(src, clientName);
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}
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@Override
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@Override // ClientProtocol
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public void setTimes(String src, long mtime, long atime)
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throws IOException {
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namesystem.setTimes(src, mtime, atime);
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}
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@Override
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public void createSymlink(String target, String link, FsPermission dirPerms,
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boolean createParent)
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throws IOException {
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@Override // ClientProtocol
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public void createSymlink(String target, String link, FsPermission dirPerms,
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boolean createParent) throws IOException {
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metrics.incrCreateSymlinkOps();
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/* We enforce the MAX_PATH_LENGTH limit even though a symlink target
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* URI may refer to a non-HDFS file system.
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@ -1262,7 +1213,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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new PermissionStatus(ugi.getShortUserName(), null, dirPerms), createParent);
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}
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@Override
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@Override // ClientProtocol
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public String getLinkTarget(String path) throws IOException {
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metrics.incrGetLinkTargetOps();
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/* Resolves the first symlink in the given path, returning a
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@ -1285,11 +1236,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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}
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////////////////////////////////////////////////////////////////
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// DatanodeProtocol
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////////////////////////////////////////////////////////////////
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/**
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*/
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@Override // DatanodeProtocol
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public DatanodeRegistration registerDatanode(DatanodeRegistration nodeReg)
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throws IOException {
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verifyVersion(nodeReg.getVersion());
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@ -1298,32 +1245,19 @@ public class NameNode implements NamenodeProtocols, FSConstants {
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return nodeReg;
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}
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/**
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* Data node notify the name node that it is alive
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* Return an array of block-oriented commands for the datanode to execute.
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* This will be either a transfer or a delete operation.
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*/
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@Override // DatanodeProtocol
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public DatanodeCommand[] sendHeartbeat(DatanodeRegistration nodeReg,
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long capacity,
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long dfsUsed,
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long remaining,
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long blockPoolUsed,
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int xmitsInProgress,
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int xceiverCount,
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int failedVolumes) throws IOException {
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long capacity, long dfsUsed, long remaining, long blockPoolUsed,
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int xmitsInProgress, int xceiverCount, int failedVolumes)
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throws IOException {
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verifyRequest(nodeReg);
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return namesystem.handleHeartbeat(nodeReg, capacity, dfsUsed, remaining,
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blockPoolUsed, xceiverCount, xmitsInProgress, failedVolumes);
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}
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/**
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* sends block report to the corresponding namenode (for the poolId)
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* @return DataNodeCommand from the namenode
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* @throws IOException
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*/
|
||||
@Override // DatanodeProtocol
|
||||
public DatanodeCommand blockReport(DatanodeRegistration nodeReg,
|
||||
String poolId,
|
||||
long[] blocks) throws IOException {
|
||||
String poolId, long[] blocks) throws IOException {
|
||||
verifyRequest(nodeReg);
|
||||
BlockListAsLongs blist = new BlockListAsLongs(blocks);
|
||||
if(stateChangeLog.isDebugEnabled()) {
|
||||
|
|
@ -1338,10 +1272,9 @@ public class NameNode implements NamenodeProtocols, FSConstants {
|
|||
return null;
|
||||
}
|
||||
|
||||
public void blockReceived(DatanodeRegistration nodeReg,
|
||||
String poolId,
|
||||
Block blocks[],
|
||||
String delHints[]) throws IOException {
|
||||
@Override // DatanodeProtocol
|
||||
public void blockReceived(DatanodeRegistration nodeReg, String poolId,
|
||||
Block blocks[], String delHints[]) throws IOException {
|
||||
verifyRequest(nodeReg);
|
||||
if(stateChangeLog.isDebugEnabled()) {
|
||||
stateChangeLog.debug("*BLOCK* NameNode.blockReceived: "
|
||||
|
|
@ -1352,9 +1285,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
|
|||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle an error report from a datanode.
|
||||
*/
|
||||
@Override // DatanodeProtocol
|
||||
public void errorReport(DatanodeRegistration nodeReg,
|
||||
int errorCode, String msg) throws IOException {
|
||||
String dnName = (nodeReg == null ? "unknown DataNode" : nodeReg.getName());
|
||||
|
|
@ -1375,10 +1306,12 @@ public class NameNode implements NamenodeProtocols, FSConstants {
|
|||
}
|
||||
}
|
||||
|
||||
@Override // DatanodeProtocol, NamenodeProtocol
|
||||
public NamespaceInfo versionRequest() throws IOException {
|
||||
return namesystem.getNamespaceInfo();
|
||||
}
|
||||
|
||||
@Override // DatanodeProtocol
|
||||
public UpgradeCommand processUpgradeCommand(UpgradeCommand comm) throws IOException {
|
||||
return namesystem.processDistributedUpgradeCommand(comm);
|
||||
}
|
||||
|
|
@ -1539,7 +1472,7 @@ public class NameNode implements NamenodeProtocols, FSConstants {
|
|||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
@Override // RefreshAuthorizationPolicyProtocol
|
||||
public void refreshServiceAcl() throws IOException {
|
||||
if (!serviceAuthEnabled) {
|
||||
throw new AuthorizationException("Service Level Authorization not enabled!");
|
||||
|
|
@ -1551,21 +1484,21 @@ public class NameNode implements NamenodeProtocols, FSConstants {
|
|||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
@Override // RefreshAuthorizationPolicyProtocol
|
||||
public void refreshUserToGroupsMappings() throws IOException {
|
||||
LOG.info("Refreshing all user-to-groups mappings. Requested by user: " +
|
||||
UserGroupInformation.getCurrentUser().getShortUserName());
|
||||
Groups.getUserToGroupsMappingService().refresh();
|
||||
}
|
||||
|
||||
@Override
|
||||
@Override // RefreshAuthorizationPolicyProtocol
|
||||
public void refreshSuperUserGroupsConfiguration() {
|
||||
LOG.info("Refreshing SuperUser proxy group mapping list ");
|
||||
|
||||
ProxyUsers.refreshSuperUserGroupsConfiguration();
|
||||
}
|
||||
|
||||
@Override
|
||||
@Override // GetUserMappingsProtocol
|
||||
public String[] getGroupsForUser(String user) throws IOException {
|
||||
if (LOG.isDebugEnabled()) {
|
||||
LOG.debug("Getting groups for user " + user);
|
||||
|
|
@ -1744,4 +1677,12 @@ public class NameNode implements NamenodeProtocols, FSConstants {
|
|||
System.exit(-1);
|
||||
}
|
||||
}
|
||||
|
||||
private static String getClientMachine() {
|
||||
String clientMachine = Server.getRemoteAddress();
|
||||
if (clientMachine == null) {
|
||||
clientMachine = "";
|
||||
}
|
||||
return clientMachine;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue