public class CommitLog extends java.lang.Object implements CommitLogMBean
| Modifier and Type | Field and Description |
|---|---|
CommitLogSegment |
activeSegment |
CommitLogAllocator |
allocator |
CommitLogArchiver |
archiver |
static int |
END_OF_SEGMENT_MARKER |
static int |
END_OF_SEGMENT_MARKER_SIZE |
static CommitLog |
instance |
| Modifier and Type | Method and Description |
|---|---|
int |
activeSegments()
Used by tests.
|
void |
add(RowMutation rm)
Add a RowMutation to the commit log.
|
void |
discardCompletedSegments(java.util.UUID cfId,
ReplayPosition context)
Modifies the per-CF dirty cursors of any commit log segments for the column family according to the position
given.
|
java.util.List<java.lang.String> |
getActiveSegmentNames() |
java.util.List<java.lang.String> |
getArchivingSegmentNames() |
long |
getCompletedTasks()
Get the number of completed tasks
|
java.util.concurrent.Future<ReplayPosition> |
getContext() |
long |
getPendingTasks()
Get the number of tasks waiting to be executed
|
long |
getTotalCommitlogSize()
Get the current size used by all the commitlog segments.
|
static boolean |
handleCommitError(java.lang.String message,
java.lang.Throwable t) |
int |
recover()
Perform recovery on commit logs located in the directory specified by the config file.
|
int |
recover(java.io.File... clogs)
Perform recovery on a list of commit log files.
|
void |
recover(java.lang.String path)
Perform recovery on a single commit log.
|
void |
resetUnsafe()
FOR TESTING PURPOSES.
|
void |
shutdownBlocking()
Shuts down the threads used by the commit log, blocking until completion.
|
void |
sync()
Forces a disk flush on the commit log files that need it.
|
public static final CommitLog instance
public final CommitLogAllocator allocator
public final CommitLogArchiver archiver
public static final int END_OF_SEGMENT_MARKER
public static final int END_OF_SEGMENT_MARKER_SIZE
public volatile CommitLogSegment activeSegment
public void resetUnsafe()
public int recover()
throws java.io.IOException
java.io.IOExceptionpublic int recover(java.io.File... clogs)
throws java.io.IOException
clogs - the list of commit log files to replayjava.io.IOExceptionpublic void recover(java.lang.String path)
throws java.io.IOException
recover in interface CommitLogMBeanjava.io.IOExceptionpublic java.util.concurrent.Future<ReplayPosition> getContext()
public int activeSegments()
public void add(RowMutation rm)
rm - the RowMutation to add to the logpublic void discardCompletedSegments(java.util.UUID cfId,
ReplayPosition context)
cfId - the column family ID that was flushedcontext - the replay position of the flushpublic void sync()
public long getCompletedTasks()
CommitLogMBeangetCompletedTasks in interface CommitLogMBeanCommitLogMetrics.completedTaskspublic long getPendingTasks()
CommitLogMBeangetPendingTasks in interface CommitLogMBeanCommitLogMetrics.pendingTaskspublic long getTotalCommitlogSize()
CommitLogMBeangetTotalCommitlogSize in interface CommitLogMBeanCommitLogMetrics.totalCommitLogSizepublic java.util.List<java.lang.String> getActiveSegmentNames()
getActiveSegmentNames in interface CommitLogMBeanpublic java.util.List<java.lang.String> getArchivingSegmentNames()
getArchivingSegmentNames in interface CommitLogMBeanpublic void shutdownBlocking()
throws java.lang.InterruptedException
java.lang.InterruptedExceptionpublic static boolean handleCommitError(java.lang.String message,
java.lang.Throwable t)
Copyright © 2015 The Apache Software Foundation