org.apache.cassandra.db.compaction

Class CompactionTask

java.lang.Object

org.apache.cassandra.utils.WrappedRunnable

org.apache.cassandra.io.util.DiskAwareRunnable

org.apache.cassandra.db.compaction.AbstractCompactionTask

org.apache.cassandra.db.compaction.CompactionTask

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

LeveledCompactionTask, SSTableSplitter.SplittingCompactionTask

public class CompactionTask
extends AbstractCompactionTask

Field Summary

Fields

Modifier and Type	Field and Description
protected int	gcBefore
protected static org.slf4j.Logger	logger
protected static long	totalBytesCompacted

Fields inherited from class org.apache.cassandra.db.compaction.AbstractCompactionTask

cfs, compactionType, isUserDefined, sstables

Constructor Summary

Constructors

Constructor and Description
CompactionTask(ColumnFamilyStore cfs, java.lang.Iterable<SSTableReader> sstables, int gcBefore)

Method Summary

Methods

Modifier and Type	Method and Description
static long	addToTotalBytesCompacted(long bytesCompacted)
protected void	checkAvailableDiskSpace(long estimatedSSTables)
protected int	executeInternal(CompactionManager.CompactionExecutorStatsCollector collector)
protected CompactionController	getCompactionController(java.util.Set<SSTableReader> toCompact)
long	getExpectedWriteSize()
protected int	getLevel()
static long	getMaxDataAge(java.util.Collection<SSTableReader> sstables)
protected boolean	newSSTableSegmentThresholdReached(SSTableWriter writer)
protected boolean	partialCompactionsAcceptable()
boolean	reduceScopeForLimitedSpace()
protected void	replaceCompactedSSTables(java.util.Collection<SSTableReader> compacted, java.util.Collection<SSTableReader> replacements)
protected void	runMayThrow() For internal use and testing only.

Methods inherited from class org.apache.cassandra.db.compaction.AbstractCompactionTask

execute, getDirectories, setCompactionType, setUserDefined, toString

Methods inherited from class org.apache.cassandra.io.util.DiskAwareRunnable

getWriteDirectory

Methods inherited from class org.apache.cassandra.utils.WrappedRunnable

run

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static final org.slf4j.Logger logger

gcBefore

protected final int gcBefore

totalBytesCompacted

protected static long totalBytesCompacted

Constructor Detail

CompactionTask

public CompactionTask(ColumnFamilyStore cfs,
              java.lang.Iterable<SSTableReader> sstables,
              int gcBefore)

Method Detail

addToTotalBytesCompacted

public static long addToTotalBytesCompacted(long bytesCompacted)

executeInternal

protected int executeInternal(CompactionManager.CompactionExecutorStatsCollector collector)

Specified by:

executeInternal in class AbstractCompactionTask

getExpectedWriteSize

public long getExpectedWriteSize()

reduceScopeForLimitedSpace

public boolean reduceScopeForLimitedSpace()

runMayThrow

protected void runMayThrow()
                    throws java.lang.Exception

For internal use and testing only. The rest of the system should go through the submit* methods, which are properly serialized. Caller is in charge of marking/unmarking the sstables as compacting.

Specified by:

runMayThrow in class WrappedRunnable

Throws:

java.lang.Exception

checkAvailableDiskSpace

protected void checkAvailableDiskSpace(long estimatedSSTables)

getLevel

protected int getLevel()

replaceCompactedSSTables

protected void replaceCompactedSSTables(java.util.Collection<SSTableReader> compacted,
                            java.util.Collection<SSTableReader> replacements)

getCompactionController

protected CompactionController getCompactionController(java.util.Set<SSTableReader> toCompact)

partialCompactionsAcceptable

protected boolean partialCompactionsAcceptable()

newSSTableSegmentThresholdReached

protected boolean newSSTableSegmentThresholdReached(SSTableWriter writer)

getMaxDataAge

public static long getMaxDataAge(java.util.Collection<SSTableReader> sstables)