org.apache.accumulo.tserver.log

Class TabletServerLogger

java.lang.Object

org.apache.accumulo.tserver.log.TabletServerLogger

public class TabletServerLogger
extends Object

Central logging facility for the TServerInfo. Forwards in-memory updates to remote logs, carefully writing the same data to every log, while maintaining the maximum thread parallelism for greater performance. As new logs are used and minor compactions are performed, the metadata table is kept up-to-date.

Constructor Summary

Constructors

Constructor and Description
TabletServerLogger(TabletServer tserver, long maxSize, AtomicLong syncCounter, AtomicLong flushCounter)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	closeForReplication(Collection<CommitSession> sessions)
int	defineTablet(CommitSession commitSession)
void	getLogFiles(Set<String> loggersOut)
int	log(CommitSession commitSession, int tabletSeq, Mutation m, Durability durability)
int	logManyTablets(Map<CommitSession,Mutations> mutations)
void	minorCompactionFinished(CommitSession commitSession, String fullyQualifiedFileName, int walogSeq)
int	minorCompactionStarted(CommitSession commitSession, int seq, String fullyQualifiedFileName)
void	recover(VolumeManager fs, KeyExtent extent, TableConfiguration tconf, List<org.apache.hadoop.fs.Path> logs, Set<String> tabletFiles, MutationReceiver mr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TabletServerLogger

public TabletServerLogger(TabletServer tserver,
                  long maxSize,
                  AtomicLong syncCounter,
                  AtomicLong flushCounter)

Method Detail

getLogFiles

public void getLogFiles(Set<String> loggersOut)

closeForReplication

protected void closeForReplication(Collection<CommitSession> sessions)

defineTablet

public int defineTablet(CommitSession commitSession)
                 throws IOException

Throws:

IOException

log

public int log(CommitSession commitSession,
      int tabletSeq,
      Mutation m,
      Durability durability)
        throws IOException

Throws:

IOException

logManyTablets

public int logManyTablets(Map<CommitSession,Mutations> mutations)
                   throws IOException

Throws:

IOException

minorCompactionFinished

public void minorCompactionFinished(CommitSession commitSession,
                           String fullyQualifiedFileName,
                           int walogSeq)
                             throws IOException

Throws:

IOException

minorCompactionStarted

public int minorCompactionStarted(CommitSession commitSession,
                         int seq,
                         String fullyQualifiedFileName)
                           throws IOException

Throws:

IOException

recover

public void recover(VolumeManager fs,
           KeyExtent extent,
           TableConfiguration tconf,
           List<org.apache.hadoop.fs.Path> logs,
           Set<String> tabletFiles,
           MutationReceiver mr)
             throws IOException

Throws:

IOException