org.apache.cassandra.db.commitlog
Class CommitLog

java.lang.Object
  org.apache.cassandra.db.commitlog.CommitLog

All Implemented Interfaces:

CommitLogMBean

public class CommitLog
extends java.lang.Object
implements CommitLogMBean

Field Summary

static CommitLog

instance

Method Summary

void	add(RowMutation rowMutation)
void	discardCompletedSegments(java.lang.Integer cfId, ReplayPosition context)
void	forceNewSegment()
long	getCompletedTasks() Get the number of completed tasks
ReplayPosition	getContext()
long	getPendingTasks() Get the number of tasks waiting to be executed
long	getSize()
long	getTotalCommitlogSize() Get the current size used by all the commitlog segments.
static int	recover()
static int	recover(java.io.File[] clogs)
void	resetUnsafe()
int	segmentsCount()
void	shutdownBlocking()

Methods inherited from class java.lang.Object

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

Field Detail

instance

public static final CommitLog instance

Method Detail

resetUnsafe

public void resetUnsafe()

recover

public static int recover()
                   throws java.io.IOException

Throws:

java.io.IOException

recover

public static int recover(java.io.File[] clogs)
                   throws java.io.IOException

Throws:

java.io.IOException

getContext

public ReplayPosition getContext()

segmentsCount

public int segmentsCount()

add

public void add(RowMutation rowMutation)
         throws java.io.IOException

Throws:

java.io.IOException

discardCompletedSegments

public void discardCompletedSegments(java.lang.Integer cfId,
                                     ReplayPosition context)
                              throws java.io.IOException

Throws:

java.io.IOException

getSize

public long getSize()

Returns:

the total size occupied by the commitlog segments expressed in bytes.

getCompletedTasks

public long getCompletedTasks()

Description copied from interface: CommitLogMBean

Get the number of completed tasks

Specified by:

getCompletedTasks in interface CommitLogMBean

getPendingTasks

public long getPendingTasks()

Description copied from interface: CommitLogMBean

Get the number of tasks waiting to be executed

Specified by:

getPendingTasks in interface CommitLogMBean

getTotalCommitlogSize

public long getTotalCommitlogSize()

Description copied from interface: CommitLogMBean

Get the current size used by all the commitlog segments.

Specified by:

getTotalCommitlogSize in interface CommitLogMBean

forceNewSegment

public void forceNewSegment()
                     throws java.util.concurrent.ExecutionException,
                            java.lang.InterruptedException

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

shutdownBlocking

public void shutdownBlocking()
                      throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException