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, Retry.RetryFactory createRetryFactory, Retry.RetryFactory writeRetryFactory, long maxAge)

Method Summary

Modifier and Type	Method and Description
protected void	closeForReplication(Collection<CommitSession> sessions)
void	defineTablet(CommitSession commitSession, Retry writeRetry)
void	getLogFiles(Set<String> loggersOut)
void	log(CommitSession commitSession, long tabletSeq, Mutation m, Durability durability)
void	logManyTablets(Map<CommitSession,Mutations> mutations)
void	minorCompactionFinished(CommitSession commitSession, String fullyQualifiedFileName, long walogSeq, Durability durability)
long	minorCompactionStarted(CommitSession commitSession, long seq, String fullyQualifiedFileName, Durability durability)
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,
                          Retry.RetryFactory createRetryFactory,
                          Retry.RetryFactory writeRetryFactory,
                          long maxAge)

Method Detail

getLogFiles

public void getLogFiles(Set<String> loggersOut)

closeForReplication

protected void closeForReplication(Collection<CommitSession> sessions)

defineTablet

public void defineTablet(CommitSession commitSession,
                         Retry writeRetry)
                  throws IOException

Throws:

IOException

log

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

Throws:

IOException

logManyTablets

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

Throws:

IOException

minorCompactionFinished

public void minorCompactionFinished(CommitSession commitSession,
                                    String fullyQualifiedFileName,
                                    long walogSeq,
                                    Durability durability)
                             throws IOException

Throws:

IOException

minorCompactionStarted

public long minorCompactionStarted(CommitSession commitSession,
                                   long seq,
                                   String fullyQualifiedFileName,
                                   Durability durability)
                            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