org.apache.hadoop.hbase.regionserver
Class CompactSplitThread

java.lang.Object
  java.lang.Thread
      org.apache.hadoop.hbase.regionserver.CompactSplitThread

All Implemented Interfaces:

java.lang.Runnable, CompactionRequestor

public class CompactSplitThread
extends java.lang.Thread
implements CompactionRequestor

Compact region on request and then run split if appropriate

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

static int

PRIORITY_USER

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

CompactSplitThread(HRegionServer server)

Method Summary

int	getCompactionQueueSize() Returns the current size of the queue containing regions that are processed.
int	getRegionSplitLimit()
void	requestCompaction(HRegion r, boolean force, java.lang.String why, int priority)
void	requestCompaction(HRegion r, java.lang.String why)
void	requestCompaction(HRegion r, java.lang.String why, int p)
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

PRIORITY_USER

public static final int PRIORITY_USER

See Also:

Constant Field Values

Constructor Detail

CompactSplitThread

public CompactSplitThread(HRegionServer server)

Parameters:

server -

Method Detail

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

requestCompaction

public void requestCompaction(HRegion r,
                              java.lang.String why)

Specified by:

requestCompaction in interface CompactionRequestor

Parameters:

r - Region to compact

why - Why compaction was requested -- used in debug messages

requestCompaction

public void requestCompaction(HRegion r,
                              java.lang.String why,
                              int p)

Specified by:

requestCompaction in interface CompactionRequestor

Parameters:

r - Region to compact

why - Why compaction was requested -- used in debug messages

p - Priority of this compaction. minHeap. <=0 is critical

requestCompaction

public void requestCompaction(HRegion r,
                              boolean force,
                              java.lang.String why,
                              int priority)

Parameters:

r - HRegion store belongs to

force - Whether next compaction should be major

why - Why compaction requested -- used in debug messages

getCompactionQueueSize

public int getCompactionQueueSize()

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

Returns:

The current size of the regions queue.

getRegionSplitLimit

public int getRegionSplitLimit()

Returns:

the regionSplitLimit