org.apache.cassandra.db.compaction

Interface CompactionManagerMBean

All Known Implementing Classes:

CompactionManager

public interface CompactionManagerMBean

Method Summary

Methods

Modifier and Type	Method and Description
void	forceUserDefinedCompaction(java.lang.String dataFiles) Triggers the compaction of user specified sstables.
javax.management.openmbean.TabularData	getCompactionHistory() compaction history
java.util.List<java.util.Map<java.lang.String,java.lang.String>>	getCompactions() List of running compaction objects.
java.util.List<java.lang.String>	getCompactionSummary() List of running compaction summary strings.
long	getCompletedTasks() Deprecated.
int	getCoreCompactorThreads() Returns core size of compaction thread pool
int	getCoreValidationThreads() Returns core size of validation thread pool
int	getMaximumCompactorThreads() Returns maximum size of compaction thread pool
int	getMaximumValidatorThreads() Returns size of validator thread pool
int	getPendingTasks() Deprecated.
long	getTotalBytesCompacted() Deprecated.
long	getTotalCompactionsCompleted() Deprecated.
void	setCoreCompactorThreads(int number) Allows user to resize maximum size of the compaction thread pool.
void	setCoreValidationThreads(int number) Allows user to resize maximum size of the compaction thread pool.
void	setMaximumCompactorThreads(int number) Allows user to resize maximum size of the compaction thread pool.
void	setMaximumValidatorThreads(int number) Allows user to resize maximum size of the validator thread pool.
void	stopCompaction(java.lang.String type) Stop all running compaction-like tasks having the provided type.

Method Detail

getCompactions

java.util.List<java.util.Map<java.lang.String,java.lang.String>> getCompactions()

List of running compaction objects.

getCompactionSummary

java.util.List<java.lang.String> getCompactionSummary()

List of running compaction summary strings.

getCompactionHistory

javax.management.openmbean.TabularData getCompactionHistory()

compaction history

getPendingTasks

@Deprecated
int getPendingTasks()

Deprecated.

Returns:

estimated number of compactions remaining to perform

See Also:

CompactionMetrics.pendingTasks

getCompletedTasks

@Deprecated
long getCompletedTasks()

Deprecated.

Returns:

number of completed compactions since server [re]start

See Also:

CompactionMetrics.completedTasks

getTotalBytesCompacted

@Deprecated
long getTotalBytesCompacted()

Deprecated.

Returns:

total number of bytes compacted since server [re]start

See Also:

CompactionMetrics.bytesCompacted

getTotalCompactionsCompleted

@Deprecated
long getTotalCompactionsCompleted()

Deprecated.

Returns:

total number of compactions since server [re]start

See Also:

CompactionMetrics.totalCompactionsCompleted

forceUserDefinedCompaction

void forceUserDefinedCompaction(java.lang.String dataFiles)

Triggers the compaction of user specified sstables. You can specify files from various keyspaces and columnfamilies. If you do so, user defined compaction is performed several times to the groups of files in the same keyspace/columnfamily.

Parameters:

dataFiles - a comma separated list of sstable filename to compact

stopCompaction

void stopCompaction(java.lang.String type)

Stop all running compaction-like tasks having the provided type.

Parameters:

type - the type of compaction to stop. Can be one of: - COMPACTION - VALIDATION - CLEANUP - SCRUB - INDEX_BUILD

getCoreCompactorThreads

int getCoreCompactorThreads()

Returns core size of compaction thread pool

setCoreCompactorThreads

void setCoreCompactorThreads(int number)

Allows user to resize maximum size of the compaction thread pool.

Parameters:

number - New maximum of compaction threads

getMaximumCompactorThreads

int getMaximumCompactorThreads()

Returns maximum size of compaction thread pool

setMaximumCompactorThreads

void setMaximumCompactorThreads(int number)

Allows user to resize maximum size of the compaction thread pool.

Parameters:

number - New maximum of compaction threads

getCoreValidationThreads

int getCoreValidationThreads()

Returns core size of validation thread pool

setCoreValidationThreads

void setCoreValidationThreads(int number)

Allows user to resize maximum size of the compaction thread pool.

Parameters:

number - New maximum of compaction threads

getMaximumValidatorThreads

int getMaximumValidatorThreads()

Returns size of validator thread pool

setMaximumValidatorThreads

void setMaximumValidatorThreads(int number)

Allows user to resize maximum size of the validator thread pool.

Parameters:

number - New maximum of validator threads