org.apache.hadoop.hbase.regionserver

Class CompactSplit

java.lang.Object

org.apache.hadoop.hbase.regionserver.CompactSplit

All Implemented Interfaces:

ConfigurationObserver, PropagatingConfigurationObserver, CompactionRequester

@InterfaceAudience.Private
public class CompactSplit
extends Object
implements CompactionRequester, PropagatingConfigurationObserver

Compact region on request and then run split if appropriate

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT
static String	LARGE_COMPACTION_THREADS
static int	LARGE_COMPACTION_THREADS_DEFAULT
static String	REGION_SERVER_REGION_SPLIT_LIMIT
static String	SMALL_COMPACTION_THREADS
static int	SMALL_COMPACTION_THREADS_DEFAULT
static String	SPLIT_THREADS
static int	SPLIT_THREADS_DEFAULT

Method Summary

Modifier and Type	Method and Description
void	clearLongCompactionsQueue()
void	clearShortCompactionsQueue()
void	deregisterChildren(ConfigurationManager manager) Needs to be called to deregister the children from the manager.
String	dumpQueue()
int	getCompactionQueueSize() Returns the current size of the queue containing regions that are processed.
ThroughputController	getCompactionThroughputController()
int	getLargeCompactionQueueSize()
protected int	getLargeCompactionThreadNum()
int	getRegionSplitLimit()
int	getSmallCompactionQueueSize()
protected int	getSmallCompactionThreadNum()
int	getSplitQueueSize()
protected int	getSplitThreadNum()
void	onConfigurationChange(org.apache.hadoop.conf.Configuration newConf) This method would be called by the ConfigurationManager object when the Configuration object is reloaded from disk.
void	registerChildren(ConfigurationManager manager) Needs to be called to register the children to the manager.
void	requestCompaction(HRegion region, HStore store, String why, int priority, CompactionLifeCycleTracker tracker, User user) Request compaction on the given store.
void	requestCompaction(HRegion region, String why, int priority, CompactionLifeCycleTracker tracker, User user) Request compaction on all the stores of the given region.
boolean	requestSplit(Region r)
void	requestSplit(Region r, byte[] midKey)
void	requestSplit(Region r, byte[] midKey, User user)
void	requestSystemCompaction(HRegion region, HStore store, String why)
void	requestSystemCompaction(HRegion region, String why)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

LARGE_COMPACTION_THREADS

public static final String LARGE_COMPACTION_THREADS

See Also:

Constant Field Values

LARGE_COMPACTION_THREADS_DEFAULT

public static final int LARGE_COMPACTION_THREADS_DEFAULT

See Also:

Constant Field Values

SMALL_COMPACTION_THREADS

public static final String SMALL_COMPACTION_THREADS

See Also:

Constant Field Values

SMALL_COMPACTION_THREADS_DEFAULT

public static final int SMALL_COMPACTION_THREADS_DEFAULT

See Also:

Constant Field Values

SPLIT_THREADS

public static final String SPLIT_THREADS

See Also:

Constant Field Values

SPLIT_THREADS_DEFAULT

public static final int SPLIT_THREADS_DEFAULT

See Also:

Constant Field Values

REGION_SERVER_REGION_SPLIT_LIMIT

public static final String REGION_SERVER_REGION_SPLIT_LIMIT

See Also:

Constant Field Values

DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT

public static final int DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT

See Also:

Constant Field Values

Method Detail

toString

public String toString()

Overrides:

toString in class Object

dumpQueue

public String dumpQueue()

requestSplit

public boolean requestSplit(Region r)

requestSplit

public void requestSplit(Region r,
                         byte[] midKey)

requestSplit

public void requestSplit(Region r,
                         byte[] midKey,
                         User user)

requestCompaction

public void requestCompaction(HRegion region,
                              String why,
                              int priority,
                              CompactionLifeCycleTracker tracker,
                              User user)
                       throws IOException

Description copied from interface: CompactionRequester

Request compaction on all the stores of the given region.

Specified by:

requestCompaction in interface CompactionRequester

Throws:

IOException

requestCompaction

public void requestCompaction(HRegion region,
                              HStore store,
                              String why,
                              int priority,
                              CompactionLifeCycleTracker tracker,
                              User user)
                       throws IOException

Description copied from interface: CompactionRequester

Request compaction on the given store.

Specified by:

requestCompaction in interface CompactionRequester

Throws:

IOException

requestSystemCompaction

public void requestSystemCompaction(HRegion region,
                                    String why)
                             throws IOException

Throws:

IOException

requestSystemCompaction

public void requestSystemCompaction(HRegion region,
                                    HStore store,
                                    String why)
                             throws IOException

Throws:

IOException

getCompactionQueueSize

public int getCompactionQueueSize()

Returns the current size of the queue containing regions that are processed.

Returns:

The current size of the regions queue.

getLargeCompactionQueueSize

public int getLargeCompactionQueueSize()

getSmallCompactionQueueSize

public int getSmallCompactionQueueSize()

getSplitQueueSize

public int getSplitQueueSize()

getRegionSplitLimit

public int getRegionSplitLimit()

Returns:

the regionSplitLimit

onConfigurationChange

public void onConfigurationChange(org.apache.hadoop.conf.Configuration newConf)

This method would be called by the ConfigurationManager object when the Configuration object is reloaded from disk.

Specified by:

onConfigurationChange in interface ConfigurationObserver

getSmallCompactionThreadNum

protected int getSmallCompactionThreadNum()

getLargeCompactionThreadNum

protected int getLargeCompactionThreadNum()

getSplitThreadNum

protected int getSplitThreadNum()

registerChildren

public void registerChildren(ConfigurationManager manager)

Needs to be called to register the children to the manager.

Specified by:

registerChildren in interface PropagatingConfigurationObserver

Parameters:

manager - : to register to

deregisterChildren

public void deregisterChildren(ConfigurationManager manager)

Needs to be called to deregister the children from the manager.

Specified by:

deregisterChildren in interface PropagatingConfigurationObserver

Parameters:

manager - : to deregister from

getCompactionThroughputController

public ThroughputController getCompactionThroughputController()

clearLongCompactionsQueue

public void clearLongCompactionsQueue()

clearShortCompactionsQueue

public void clearShortCompactionsQueue()