Module org.elasticsearch.server

Package org.elasticsearch.index.engine

Class ThreadPoolMergeExecutorService

java.lang.Object

org.elasticsearch.index.engine.ThreadPoolMergeExecutorService

All Implemented Interfaces:

Closeable, AutoCloseable

public class ThreadPoolMergeExecutorService
extends Object
implements Closeable

Field Summary

Fields

Modifier and Type	Field	Description
static final Setting<TimeValue>	INDICES_MERGE_DISK_CHECK_INTERVAL_SETTING	How frequently we check disk usage (default: 5 seconds).
static final Setting<ByteSizeValue>	INDICES_MERGE_DISK_HIGH_MAX_HEADROOM_SETTING	The available disk space headroom below which NO new merges are started.
static final Setting<RelativeByteSizeValue>	INDICES_MERGE_DISK_HIGH_WATERMARK_SETTING	The occupied disk space threshold beyond which NO new merges are started.

Method Summary

Modifier and Type	Method	Description
boolean	allDone()
void	close()
boolean	isMergingBlockedDueToInsufficientDiskSpace()
static ThreadPoolMergeExecutorService	maybeCreateThreadPoolMergeExecutorService(ThreadPool threadPool, ClusterSettings clusterSettings, NodeEnvironment nodeEnvironment)
void	registerMergeEventListener(MergeEventListener consumer)
boolean	usingMaxTargetIORateBytesPerSec()

Methods inherited from class java.lang.Object

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

Field Details

INDICES_MERGE_DISK_CHECK_INTERVAL_SETTING

public static final Setting<TimeValue> INDICES_MERGE_DISK_CHECK_INTERVAL_SETTING

How frequently we check disk usage (default: 5 seconds).

INDICES_MERGE_DISK_HIGH_WATERMARK_SETTING

public static final Setting<RelativeByteSizeValue> INDICES_MERGE_DISK_HIGH_WATERMARK_SETTING

The occupied disk space threshold beyond which NO new merges are started. Conservatively, the estimated temporary disk space required for the to-be-started merge is counted as occupied disk space. Defaults to the routing allocation flood stage limit value (beyond which shards are toggled read-only).

INDICES_MERGE_DISK_HIGH_MAX_HEADROOM_SETTING

public static final Setting<ByteSizeValue> INDICES_MERGE_DISK_HIGH_MAX_HEADROOM_SETTING

The available disk space headroom below which NO new merges are started. Conservatively, the estimated temporary disk space required for the to-be-started merge is NOT counted as available disk space. Defaults to the routing allocation flood stage headroom value (below which shards are toggled read-only), unless the merge occupied disk space threshold is specified, in which case the default headroom value here is unset.

Method Details

maybeCreateThreadPoolMergeExecutorService

@Nullable
public static ThreadPoolMergeExecutorService maybeCreateThreadPoolMergeExecutorService(ThreadPool threadPool,
 ClusterSettings clusterSettings,
 NodeEnvironment nodeEnvironment)

allDone

public boolean allDone()

isMergingBlockedDueToInsufficientDiskSpace

public boolean isMergingBlockedDueToInsufficientDiskSpace()

usingMaxTargetIORateBytesPerSec

public boolean usingMaxTargetIORateBytesPerSec()

registerMergeEventListener

public void registerMergeEventListener(MergeEventListener consumer)

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException