org.elasticsearch.indices

Class IndexingMemoryController

java.lang.Object

org.elasticsearch.common.component.AbstractComponent

org.elasticsearch.indices.IndexingMemoryController

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, IndexingOperationListener

public class IndexingMemoryController
extends AbstractComponent
implements IndexingOperationListener, java.io.Closeable

Nested Class Summary

Nested classes/interfaces inherited from interface org.elasticsearch.index.shard.IndexingOperationListener

IndexingOperationListener.CompositeListener

Field Summary

Fields

Modifier and Type	Field and Description
static Setting<ByteSizeValue>	INDEX_BUFFER_SIZE_SETTING How much heap (% or bytes) we will share across all actively indexing shards on this node (default: 10%).
static Setting<ByteSizeValue>	MAX_INDEX_BUFFER_SIZE_SETTING Only applies when indices.memory.index_buffer_size is a %, to set a ceiling on the actual size in bytes (default: not set).
static Setting<ByteSizeValue>	MIN_INDEX_BUFFER_SIZE_SETTING Only applies when indices.memory.index_buffer_size is a %, to set a floor on the actual size in bytes (default: 48 MB).
static Setting<TimeValue>	SHARD_INACTIVE_TIME_SETTING If we see no indexing operations after this much time for a given shard, we consider that shard inactive (default: 5 minutes).
static Setting<TimeValue>	SHARD_MEMORY_INTERVAL_TIME_SETTING How frequently we check indexing memory usage (default: 5 seconds).

Fields inherited from class org.elasticsearch.common.component.AbstractComponent

deprecationLogger, logger, settings

Method Summary

Modifier and Type	Method and Description
protected void	activateThrottling(IndexShard shard) Asks this shard to throttle indexing to one thread
protected java.util.List<IndexShard>	availableShards()
void	bytesWritten(int bytes) called by IndexShard to record that this many bytes were written to translog
protected void	checkIdle(IndexShard shard, long inactiveTimeNS) ask this shard to check now whether it is inactive, and reduces its indexing buffer if so.
void	close()
protected void	deactivateThrottling(IndexShard shard) Asks this shard to stop throttling indexing to one thread
protected long	getIndexBufferRAMBytesUsed(IndexShard shard) returns how much heap this shard is using for its indexing buffer
protected long	getShardWritingBytes(IndexShard shard) returns how many bytes this shard is currently writing to disk
void	postDelete(Engine.Delete delete) Called after the delete operation occurred.
void	postIndex(Engine.Index index, boolean created) Called after the indexing operation occurred.
protected ThreadPool.Cancellable	scheduleTask(ThreadPool threadPool)
protected void	writeIndexingBufferAsync(IndexShard shard) ask this shard to refresh, in the background, to free up heap

Methods inherited from class org.elasticsearch.common.component.AbstractComponent

logDeprecatedSetting, logRemovedSetting, nodeName

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.index.shard.IndexingOperationListener

postDelete, postIndex, preDelete, preIndex

Field Detail

INDEX_BUFFER_SIZE_SETTING

public static final Setting<ByteSizeValue> INDEX_BUFFER_SIZE_SETTING

How much heap (% or bytes) we will share across all actively indexing shards on this node (default: 10%).

MIN_INDEX_BUFFER_SIZE_SETTING

public static final Setting<ByteSizeValue> MIN_INDEX_BUFFER_SIZE_SETTING

Only applies when indices.memory.index_buffer_size is a %, to set a floor on the actual size in bytes (default: 48 MB).

MAX_INDEX_BUFFER_SIZE_SETTING

public static final Setting<ByteSizeValue> MAX_INDEX_BUFFER_SIZE_SETTING

Only applies when indices.memory.index_buffer_size is a %, to set a ceiling on the actual size in bytes (default: not set).

SHARD_INACTIVE_TIME_SETTING

public static final Setting<TimeValue> SHARD_INACTIVE_TIME_SETTING

If we see no indexing operations after this much time for a given shard, we consider that shard inactive (default: 5 minutes).

SHARD_MEMORY_INTERVAL_TIME_SETTING

public static final Setting<TimeValue> SHARD_MEMORY_INTERVAL_TIME_SETTING

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

Method Detail

scheduleTask

protected ThreadPool.Cancellable scheduleTask(ThreadPool threadPool)

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

availableShards

protected java.util.List<IndexShard> availableShards()

getIndexBufferRAMBytesUsed

protected long getIndexBufferRAMBytesUsed(IndexShard shard)

returns how much heap this shard is using for its indexing buffer

getShardWritingBytes

protected long getShardWritingBytes(IndexShard shard)

returns how many bytes this shard is currently writing to disk

writeIndexingBufferAsync

protected void writeIndexingBufferAsync(IndexShard shard)

ask this shard to refresh, in the background, to free up heap

bytesWritten

public void bytesWritten(int bytes)

called by IndexShard to record that this many bytes were written to translog

activateThrottling

protected void activateThrottling(IndexShard shard)

Asks this shard to throttle indexing to one thread

deactivateThrottling

protected void deactivateThrottling(IndexShard shard)

Asks this shard to stop throttling indexing to one thread

postIndex

public void postIndex(Engine.Index index,
                      boolean created)

Description copied from interface: IndexingOperationListener

Called after the indexing operation occurred.

Specified by:

postIndex in interface IndexingOperationListener

postDelete

public void postDelete(Engine.Delete delete)

Description copied from interface: IndexingOperationListener

Called after the delete operation occurred.

Specified by:

postDelete in interface IndexingOperationListener

checkIdle

protected void checkIdle(IndexShard shard,
                         long inactiveTimeNS)

ask this shard to check now whether it is inactive, and reduces its indexing buffer if so.