org.apache.hadoop.hbase.regionserver.wal

Class WALEventTrackerListener

java.lang.Object

org.apache.hadoop.hbase.regionserver.wal.WALEventTrackerListener

All Implemented Interfaces:

WALActionsListener

@InterfaceAudience.Private
public class WALEventTrackerListener
extends Object
implements WALActionsListener

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	WALEventTrackerListener.WalState

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.regionserver.wal.WALActionsListener

WALActionsListener.RollRequestReason

Constructor Summary

Constructors

Constructor and Description
WALEventTrackerListener(org.apache.hadoop.conf.Configuration conf, NamedQueueRecorder namedQueueRecorder, ServerName serverName)

Method Summary

Modifier and Type	Method and Description
void	postLogRoll(org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath) The WAL has been rolled.
void	preLogRoll(org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath) The WAL is going to be rolled.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hbase.regionserver.wal.WALActionsListener

logCloseRequested, logRollRequested, postAppend, postLogArchive, postSync, preLogArchive, visitLogEntryBeforeWrite

Constructor Detail

WALEventTrackerListener

public WALEventTrackerListener(org.apache.hadoop.conf.Configuration conf,
                               NamedQueueRecorder namedQueueRecorder,
                               ServerName serverName)

Method Detail

preLogRoll

public void preLogRoll(org.apache.hadoop.fs.Path oldPath,
                       org.apache.hadoop.fs.Path newPath)

Description copied from interface: WALActionsListener

The WAL is going to be rolled. The oldPath can be null if this is the first log file from the regionserver.

Specified by:

preLogRoll in interface WALActionsListener

Parameters:

oldPath - the path to the old wal

newPath - the path to the new wal

postLogRoll

public void postLogRoll(org.apache.hadoop.fs.Path oldPath,
                        org.apache.hadoop.fs.Path newPath)

Description copied from interface: WALActionsListener

The WAL has been rolled. The oldPath can be null if this is the first log file from the regionserver.

Specified by:

postLogRoll in interface WALActionsListener

Parameters:

oldPath - the path to the old wal

newPath - the path to the new wal