org.apache.cassandra.db.compaction

Class CompactionManager

java.lang.Object

org.apache.cassandra.db.compaction.CompactionManager

All Implemented Interfaces:

CompactionManagerMBean

public class CompactionManager
extends java.lang.Object
implements CompactionManagerMBean

A singleton which manages a private executor of ongoing compactions.

Scheduling for compaction is accomplished by swapping sstables to be compacted into a set via Tracker. New scheduling attempts will ignore currently compacting sstables.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CompactionManager.AllSSTableOpStatus
static interface	CompactionManager.CompactionPauser
static class	CompactionManager.ValidationExecutor

Field Summary

Fields

Modifier and Type	Field and Description
ActiveCompactions	active
java.util.concurrent.atomic.AtomicInteger	currentlyBackgroundUpgrading
static int	GC_ALL
static CompactionManager	instance
static io.netty.util.concurrent.FastThreadLocal<java.lang.Boolean>	isCompactionManager
static java.lang.String	MBEAN_OBJECT_NAME
static int	NO_GC

Constructor Summary

Constructors

Constructor and Description
CompactionManager()

Method Summary

Modifier and Type	Method and Description
static SSTableWriter	createWriter(ColumnFamilyStore cfs, java.io.File compactionFileLocation, long expectedBloomFilterSize, long repairedAt, java.util.UUID pendingRepair, boolean isTransient, SSTableReader sstable, LifecycleTransaction txn)
static SSTableWriter	createWriterForAntiCompaction(ColumnFamilyStore cfs, java.io.File compactionFileLocation, int expectedBloomFilterSize, long repairedAt, java.util.UUID pendingRepair, boolean isTransient, java.util.Collection<SSTableReader> sstables, ILifecycleTransaction txn)
void	disableAutoCompaction()
void	finishCompactionsAndShutdown(long timeout, java.util.concurrent.TimeUnit unit)
void	forceCompactionForTokenRange(ColumnFamilyStore cfStore, java.util.Collection<Range<Token>> ranges) Forces a major compaction of specified token ranges of the specified column family.
void	forceShutdown() Shutdowns both compaction and validation executors, cancels running compaction / validation, and waits for tasks to complete if tasks were not cancelable.
void	forceUserDefinedCleanup(java.lang.String dataFiles) Triggers the cleanup of user specified sstables.
void	forceUserDefinedCompaction(java.lang.String dataFiles) Triggers the compaction of user specified sstables.
int	getActiveCompactions()
static CompactionIterator	getAntiCompactionIterator(java.util.List<ISSTableScanner> scanners, CompactionController controller, int nowInSec, java.util.UUID timeUUID, ActiveCompactionsTracker activeCompactions, java.util.function.BooleanSupplier isCancelled)
boolean	getAutomaticSSTableUpgradeEnabled() Get automatic sstable upgrade enabled
org.apache.cassandra.db.compaction.CompactionManager.BackgroundCompactionCandidate	getBackgroundCompactionCandidate(ColumnFamilyStore cfs)
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()
int	getCoreCompactorThreads() Returns core size of compaction thread pool
int	getCoreValidationThreads() Returns core size of validation thread pool
int	getCoreViewBuildThreads() Returns core size of view build thread pool
static int	getDefaultGcBefore(ColumnFamilyStore cfs, int nowInSec)
boolean	getDisableSTCSInL0() Enable / disable STCS in L0
int	getMaxConcurrentAutoUpgradeTasks() Get the number of concurrent sstable upgrade tasks we should run when automatic sstable upgrades are enabled
int	getMaximumCompactorThreads() Returns maximum size of compaction thread pool
int	getMaximumValidatorThreads() Returns size of validator thread pool
int	getMaximumViewBuildThreads() Returns size of view build thread pool
CompactionMetrics	getMetrics()
int	getPendingTasks()
com.google.common.util.concurrent.RateLimiter	getRateLimiter() Gets compaction rate limiter.
java.util.List<CompactionInfo>	getSSTableTasks()
long	getTotalBytesCompacted()
long	getTotalCompactionsCompleted()
void	incrementAborted()
void	incrementCompactionsReduced()
void	incrementSstablesDropppedFromCompactions(long num)
void	interruptCompactionFor(java.lang.Iterable<TableMetadata> columnFamilies, java.util.function.Predicate<SSTableReader> sstablePredicate, boolean interruptValidation) Try to stop all of the compactions for given ColumnFamilies.
void	interruptCompactionForCFs(java.lang.Iterable<ColumnFamilyStore> cfss, java.util.function.Predicate<SSTableReader> sstablePredicate, boolean interruptValidation)
boolean	isCompacting(java.lang.Iterable<ColumnFamilyStore> cfses, java.util.function.Predicate<SSTableReader> sstablePredicate)
boolean	isGlobalCompactionPaused() Return whether "global" compactions should be paused, used by ColumnFamilyStore#runWithCompactionsDisabled a global compaction is one that includes several/all tables, currently only IndexSummaryBuilder
static boolean	needsCleanup(SSTableReader sstable, java.util.Collection<Range<Token>> ownedRanges) Determines if a cleanup would actually remove any data in this SSTable based on a set of owned ranges.
CompactionManager.CompactionPauser	pauseGlobalCompaction()
void	performAnticompaction(ColumnFamilyStore cfs, RangesAtEndpoint replicas, Refs<SSTableReader> validatedForRepair, LifecycleTransaction txn, java.util.UUID sessionID, java.util.function.BooleanSupplier isCancelled) Make sure the {validatedForRepair} are marked for compaction before calling this.
CompactionManager.AllSSTableOpStatus	performCleanup(ColumnFamilyStore cfStore, int jobs)
CompactionManager.AllSSTableOpStatus	performGarbageCollection(ColumnFamilyStore cfStore, CompactionParams.TombstoneOption tombstoneOption, int jobs)
void	performMaximal(ColumnFamilyStore cfStore, boolean splitOutput)
CompactionManager.AllSSTableOpStatus	performScrub(ColumnFamilyStore cfs, boolean skipCorrupted, boolean checkData, boolean reinsertOverflowedTTL, int jobs)
CompactionManager.AllSSTableOpStatus	performScrub(ColumnFamilyStore cfs, boolean skipCorrupted, boolean checkData, int jobs)
CompactionManager.AllSSTableOpStatus	performSSTableRewrite(ColumnFamilyStore cfs, boolean excludeCurrentVersion, int jobs)
CompactionManager.AllSSTableOpStatus	performVerify(ColumnFamilyStore cfs, Verifier.Options options)
CompactionManager.AllSSTableOpStatus	relocateSSTables(ColumnFamilyStore cfs, int jobs)
java.util.List<SSTableReader>	runIndexSummaryRedistribution(IndexSummaryRedistribution redistribution)
void	setAutomaticSSTableUpgradeEnabled(boolean enabled) Set if automatic sstable upgrade should be enabled
void	setConcurrentCompactors(int value)
void	setConcurrentValidations()
void	setConcurrentViewBuilders(int value)
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	setCoreViewBuildThreads(int number) Allows user to resize maximum size of the view build thread pool.
void	setDisableSTCSInL0(boolean disabled)
void	setMaxConcurrentAutoUpgradeTasks(int value) Set the number of concurrent sstable upgrade tasks we should run when automatic sstable upgrades are enabled
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	setMaximumViewBuildThreads(int number) Allows user to resize maximum size of the view build thread pool.
void	setRate(double throughPutMbPerSec) Sets the rate for the rate limiter.
void	stopCompaction(java.lang.String type) Stop all running compaction-like tasks having the provided type.
void	stopCompactionById(java.lang.String compactionId) Stop an individual running compaction using the compactionId.
java.util.List<java.util.concurrent.Future<?>>	submitBackground(ColumnFamilyStore cfs) Call this whenever a compaction might be needed on the given columnfamily.
java.util.concurrent.Future<?>	submitCacheWrite(AutoSavingCache.Writer writer)
com.google.common.util.concurrent.ListenableFuture<?>	submitIndexBuild(SecondaryIndexBuilder builder) Is not scheduled, because it is performing disjoint work from sstable compaction.
java.util.List<java.util.concurrent.Future<?>>	submitMaximal(ColumnFamilyStore cfStore, int gcBefore, boolean splitOutput)
com.google.common.util.concurrent.ListenableFuture<?>	submitPendingAntiCompaction(ColumnFamilyStore cfs, RangesAtEndpoint tokenRanges, Refs<SSTableReader> sstables, LifecycleTransaction txn, java.util.UUID sessionId, java.util.function.BooleanSupplier isCancelled) Splits the given token ranges of the given sstables into a pending repair silo
java.util.concurrent.Future<?>	submitUserDefined(ColumnFamilyStore cfs, java.util.Collection<Descriptor> dataFiles, int gcBefore)
java.util.concurrent.Future<?>	submitValidation(java.util.concurrent.Callable<java.lang.Object> validation)
com.google.common.util.concurrent.ListenableFuture<java.lang.Long>	submitViewBuilder(ViewBuilderTask task)
void	waitForCessation(java.lang.Iterable<ColumnFamilyStore> cfss, java.util.function.Predicate<SSTableReader> sstablePredicate)

Methods inherited from class java.lang.Object

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

Field Detail

MBEAN_OBJECT_NAME

public static final java.lang.String MBEAN_OBJECT_NAME

See Also:

Constant Field Values

instance

public static final CompactionManager instance

currentlyBackgroundUpgrading

public final java.util.concurrent.atomic.AtomicInteger currentlyBackgroundUpgrading

NO_GC

public static final int NO_GC

See Also:

Constant Field Values

GC_ALL

public static final int GC_ALL

See Also:

Constant Field Values

isCompactionManager

public static final io.netty.util.concurrent.FastThreadLocal<java.lang.Boolean> isCompactionManager

active

public final ActiveCompactions active

Constructor Detail

CompactionManager

public CompactionManager()

Method Detail

getMetrics

public CompactionMetrics getMetrics()

getRateLimiter

public com.google.common.util.concurrent.RateLimiter getRateLimiter()

Gets compaction rate limiter. Rate unit is bytes per sec.

Returns:

RateLimiter with rate limit set

setRate

public void setRate(double throughPutMbPerSec)

Sets the rate for the rate limiter. When compaction_throughput_mb_per_sec is 0 or node is bootstrapping, this sets the rate to Double.MAX_VALUE bytes per second.

Parameters:

throughPutMbPerSec - throughput to set in mb per second

submitBackground

public java.util.List<java.util.concurrent.Future<?>> submitBackground(ColumnFamilyStore cfs)

Call this whenever a compaction might be needed on the given columnfamily. It's okay to over-call (within reason) if a call is unnecessary, it will turn into a no-op in the bucketing/candidate-scan phase.

isCompacting

public boolean isCompacting(java.lang.Iterable<ColumnFamilyStore> cfses,
                            java.util.function.Predicate<SSTableReader> sstablePredicate)

forceShutdown

public void forceShutdown()

Shutdowns both compaction and validation executors, cancels running compaction / validation, and waits for tasks to complete if tasks were not cancelable.

finishCompactionsAndShutdown

public void finishCompactionsAndShutdown(long timeout,
                                         java.util.concurrent.TimeUnit unit)
                                  throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

getBackgroundCompactionCandidate

public org.apache.cassandra.db.compaction.CompactionManager.BackgroundCompactionCandidate getBackgroundCompactionCandidate(ColumnFamilyStore cfs)

performScrub

public CompactionManager.AllSSTableOpStatus performScrub(ColumnFamilyStore cfs,
                                                         boolean skipCorrupted,
                                                         boolean checkData,
                                                         int jobs)
                                                  throws java.lang.InterruptedException,
                                                         java.util.concurrent.ExecutionException

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

performScrub

public CompactionManager.AllSSTableOpStatus performScrub(ColumnFamilyStore cfs,
                                                         boolean skipCorrupted,
                                                         boolean checkData,
                                                         boolean reinsertOverflowedTTL,
                                                         int jobs)
                                                  throws java.lang.InterruptedException,
                                                         java.util.concurrent.ExecutionException

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

performVerify

public CompactionManager.AllSSTableOpStatus performVerify(ColumnFamilyStore cfs,
                                                          Verifier.Options options)
                                                   throws java.lang.InterruptedException,
                                                          java.util.concurrent.ExecutionException

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

performSSTableRewrite

public CompactionManager.AllSSTableOpStatus performSSTableRewrite(ColumnFamilyStore cfs,
                                                                  boolean excludeCurrentVersion,
                                                                  int jobs)
                                                           throws java.lang.InterruptedException,
                                                                  java.util.concurrent.ExecutionException

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

performCleanup

public CompactionManager.AllSSTableOpStatus performCleanup(ColumnFamilyStore cfStore,
                                                           int jobs)
                                                    throws java.lang.InterruptedException,
                                                           java.util.concurrent.ExecutionException

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

performGarbageCollection

public CompactionManager.AllSSTableOpStatus performGarbageCollection(ColumnFamilyStore cfStore,
                                                                     CompactionParams.TombstoneOption tombstoneOption,
                                                                     int jobs)
                                                              throws java.lang.InterruptedException,
                                                                     java.util.concurrent.ExecutionException

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

relocateSSTables

public CompactionManager.AllSSTableOpStatus relocateSSTables(ColumnFamilyStore cfs,
                                                             int jobs)
                                                      throws java.util.concurrent.ExecutionException,
                                                             java.lang.InterruptedException

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

submitPendingAntiCompaction

public com.google.common.util.concurrent.ListenableFuture<?> submitPendingAntiCompaction(ColumnFamilyStore cfs,
                                                                                         RangesAtEndpoint tokenRanges,
                                                                                         Refs<SSTableReader> sstables,
                                                                                         LifecycleTransaction txn,
                                                                                         java.util.UUID sessionId,
                                                                                         java.util.function.BooleanSupplier isCancelled)

Splits the given token ranges of the given sstables into a pending repair silo

performAnticompaction

public void performAnticompaction(ColumnFamilyStore cfs,
                                  RangesAtEndpoint replicas,
                                  Refs<SSTableReader> validatedForRepair,
                                  LifecycleTransaction txn,
                                  java.util.UUID sessionID,
                                  java.util.function.BooleanSupplier isCancelled)
                           throws java.io.IOException

Make sure the {validatedForRepair} are marked for compaction before calling this. Caller must reference the validatedForRepair sstables (via ParentRepairSession.getActiveRepairedSSTableRefs(..)).

Parameters:

cfs -

replicas - token ranges to be repaired

validatedForRepair - SSTables containing the repaired ranges. Should be referenced before passing them.

sessionID - the repair session we're anti-compacting for

isCancelled - function that indicates if active anti-compaction should be canceled

Throws:

java.lang.InterruptedException

java.io.IOException

performMaximal

public void performMaximal(ColumnFamilyStore cfStore,
                           boolean splitOutput)

submitMaximal

public java.util.List<java.util.concurrent.Future<?>> submitMaximal(ColumnFamilyStore cfStore,
                                                                    int gcBefore,
                                                                    boolean splitOutput)

forceCompactionForTokenRange

public void forceCompactionForTokenRange(ColumnFamilyStore cfStore,
                                         java.util.Collection<Range<Token>> ranges)

Forces a major compaction of specified token ranges of the specified column family.

The token ranges will be interpreted as closed intervals to match the closed interval defined by the first and last keys of a sstable, even though the Range class is suppossed to be half-open by definition.

Parameters:

cfStore - The column family store to be compacted.

ranges - The token ranges to be compacted, interpreted as closed intervals.

forceUserDefinedCompaction

public void forceUserDefinedCompaction(java.lang.String dataFiles)

Description copied from interface: CompactionManagerMBean

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.

Specified by:

forceUserDefinedCompaction in interface CompactionManagerMBean

Parameters:

dataFiles - a comma separated list of sstable file to compact. must contain keyspace and columnfamily name in path(for 2.1+) or file name itself.

forceUserDefinedCleanup

public void forceUserDefinedCleanup(java.lang.String dataFiles)

Description copied from interface: CompactionManagerMBean

Triggers the cleanup of user specified sstables. You can specify files from various keyspaces and columnfamilies. If you do so, cleanup is performed each file individually

Specified by:

forceUserDefinedCleanup in interface CompactionManagerMBean

Parameters:

dataFiles - a comma separated list of sstable file to cleanup. must contain keyspace and columnfamily name in path(for 2.1+) or file name itself.

submitUserDefined

public java.util.concurrent.Future<?> submitUserDefined(ColumnFamilyStore cfs,
                                                        java.util.Collection<Descriptor> dataFiles,
                                                        int gcBefore)

submitValidation

public java.util.concurrent.Future<?> submitValidation(java.util.concurrent.Callable<java.lang.Object> validation)

disableAutoCompaction

public void disableAutoCompaction()

needsCleanup

public static boolean needsCleanup(SSTableReader sstable,
                                   java.util.Collection<Range<Token>> ownedRanges)

Determines if a cleanup would actually remove any data in this SSTable based on a set of owned ranges.

createWriter

public static SSTableWriter createWriter(ColumnFamilyStore cfs,
                                         java.io.File compactionFileLocation,
                                         long expectedBloomFilterSize,
                                         long repairedAt,
                                         java.util.UUID pendingRepair,
                                         boolean isTransient,
                                         SSTableReader sstable,
                                         LifecycleTransaction txn)

createWriterForAntiCompaction

public static SSTableWriter createWriterForAntiCompaction(ColumnFamilyStore cfs,
                                                          java.io.File compactionFileLocation,
                                                          int expectedBloomFilterSize,
                                                          long repairedAt,
                                                          java.util.UUID pendingRepair,
                                                          boolean isTransient,
                                                          java.util.Collection<SSTableReader> sstables,
                                                          ILifecycleTransaction txn)

getAntiCompactionIterator

public static CompactionIterator getAntiCompactionIterator(java.util.List<ISSTableScanner> scanners,
                                                           CompactionController controller,
                                                           int nowInSec,
                                                           java.util.UUID timeUUID,
                                                           ActiveCompactionsTracker activeCompactions,
                                                           java.util.function.BooleanSupplier isCancelled)

submitIndexBuild

public com.google.common.util.concurrent.ListenableFuture<?> submitIndexBuild(SecondaryIndexBuilder builder)

Is not scheduled, because it is performing disjoint work from sstable compaction.

submitCacheWrite

public java.util.concurrent.Future<?> submitCacheWrite(AutoSavingCache.Writer writer)

runIndexSummaryRedistribution

public java.util.List<SSTableReader> runIndexSummaryRedistribution(IndexSummaryRedistribution redistribution)
                                                            throws java.io.IOException

Throws:

java.io.IOException

getDefaultGcBefore

public static int getDefaultGcBefore(ColumnFamilyStore cfs,
                                     int nowInSec)

submitViewBuilder

public com.google.common.util.concurrent.ListenableFuture<java.lang.Long> submitViewBuilder(ViewBuilderTask task)

getActiveCompactions

public int getActiveCompactions()

incrementAborted

public void incrementAborted()

incrementCompactionsReduced

public void incrementCompactionsReduced()

incrementSstablesDropppedFromCompactions

public void incrementSstablesDropppedFromCompactions(long num)

getCompactions

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

Description copied from interface: CompactionManagerMBean

List of running compaction objects.

Specified by:

getCompactions in interface CompactionManagerMBean

getCompactionSummary

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

Description copied from interface: CompactionManagerMBean

List of running compaction summary strings.

Specified by:

getCompactionSummary in interface CompactionManagerMBean

getCompactionHistory

public javax.management.openmbean.TabularData getCompactionHistory()

Description copied from interface: CompactionManagerMBean

compaction history

Specified by:

getCompactionHistory in interface CompactionManagerMBean

getTotalBytesCompacted

public long getTotalBytesCompacted()

getTotalCompactionsCompleted

public long getTotalCompactionsCompleted()

getPendingTasks

public int getPendingTasks()

getCompletedTasks

public long getCompletedTasks()

stopCompaction

public void stopCompaction(java.lang.String type)

Description copied from interface: CompactionManagerMBean

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

Specified by:

stopCompaction in interface CompactionManagerMBean

Parameters:

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

stopCompactionById

public void stopCompactionById(java.lang.String compactionId)

Description copied from interface: CompactionManagerMBean

Stop an individual running compaction using the compactionId.

Specified by:

stopCompactionById in interface CompactionManagerMBean

Parameters:

compactionId - Compaction ID of compaction to stop. Such IDs can be found in the transaction log files whose name starts with compaction_, located in the table transactions folder.

setConcurrentCompactors

public void setConcurrentCompactors(int value)

setConcurrentValidations

public void setConcurrentValidations()

setConcurrentViewBuilders

public void setConcurrentViewBuilders(int value)

getCoreCompactorThreads

public int getCoreCompactorThreads()

Description copied from interface: CompactionManagerMBean

Returns core size of compaction thread pool

Specified by:

getCoreCompactorThreads in interface CompactionManagerMBean

setCoreCompactorThreads

public void setCoreCompactorThreads(int number)

Description copied from interface: CompactionManagerMBean

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

Specified by:

setCoreCompactorThreads in interface CompactionManagerMBean

Parameters:

number - New maximum of compaction threads

getMaximumCompactorThreads

public int getMaximumCompactorThreads()

Description copied from interface: CompactionManagerMBean

Returns maximum size of compaction thread pool

Specified by:

getMaximumCompactorThreads in interface CompactionManagerMBean

setMaximumCompactorThreads

public void setMaximumCompactorThreads(int number)

Description copied from interface: CompactionManagerMBean

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

Specified by:

setMaximumCompactorThreads in interface CompactionManagerMBean

Parameters:

number - New maximum of compaction threads

getCoreValidationThreads

public int getCoreValidationThreads()

Description copied from interface: CompactionManagerMBean

Returns core size of validation thread pool

Specified by:

getCoreValidationThreads in interface CompactionManagerMBean

setCoreValidationThreads

public void setCoreValidationThreads(int number)

Description copied from interface: CompactionManagerMBean

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

Specified by:

setCoreValidationThreads in interface CompactionManagerMBean

Parameters:

number - New maximum of compaction threads

getMaximumValidatorThreads

public int getMaximumValidatorThreads()

Description copied from interface: CompactionManagerMBean

Returns size of validator thread pool

Specified by:

getMaximumValidatorThreads in interface CompactionManagerMBean

setMaximumValidatorThreads

public void setMaximumValidatorThreads(int number)

Description copied from interface: CompactionManagerMBean

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

Specified by:

setMaximumValidatorThreads in interface CompactionManagerMBean

Parameters:

number - New maximum of validator threads

getDisableSTCSInL0

public boolean getDisableSTCSInL0()

Description copied from interface: CompactionManagerMBean

Enable / disable STCS in L0

Specified by:

getDisableSTCSInL0 in interface CompactionManagerMBean

setDisableSTCSInL0

public void setDisableSTCSInL0(boolean disabled)

Specified by:

setDisableSTCSInL0 in interface CompactionManagerMBean

getCoreViewBuildThreads

public int getCoreViewBuildThreads()

Description copied from interface: CompactionManagerMBean

Returns core size of view build thread pool

Specified by:

getCoreViewBuildThreads in interface CompactionManagerMBean

setCoreViewBuildThreads

public void setCoreViewBuildThreads(int number)

Description copied from interface: CompactionManagerMBean

Allows user to resize maximum size of the view build thread pool.

Specified by:

setCoreViewBuildThreads in interface CompactionManagerMBean

Parameters:

number - New maximum of view build threads

getMaximumViewBuildThreads

public int getMaximumViewBuildThreads()

Description copied from interface: CompactionManagerMBean

Returns size of view build thread pool

Specified by:

getMaximumViewBuildThreads in interface CompactionManagerMBean

setMaximumViewBuildThreads

public void setMaximumViewBuildThreads(int number)

Description copied from interface: CompactionManagerMBean

Allows user to resize maximum size of the view build thread pool.

Specified by:

setMaximumViewBuildThreads in interface CompactionManagerMBean

Parameters:

number - New maximum of view build threads

getAutomaticSSTableUpgradeEnabled

public boolean getAutomaticSSTableUpgradeEnabled()

Description copied from interface: CompactionManagerMBean

Get automatic sstable upgrade enabled

Specified by:

getAutomaticSSTableUpgradeEnabled in interface CompactionManagerMBean

setAutomaticSSTableUpgradeEnabled

public void setAutomaticSSTableUpgradeEnabled(boolean enabled)

Description copied from interface: CompactionManagerMBean

Set if automatic sstable upgrade should be enabled

Specified by:

setAutomaticSSTableUpgradeEnabled in interface CompactionManagerMBean

getMaxConcurrentAutoUpgradeTasks

public int getMaxConcurrentAutoUpgradeTasks()

Description copied from interface: CompactionManagerMBean

Get the number of concurrent sstable upgrade tasks we should run when automatic sstable upgrades are enabled

Specified by:

getMaxConcurrentAutoUpgradeTasks in interface CompactionManagerMBean

setMaxConcurrentAutoUpgradeTasks

public void setMaxConcurrentAutoUpgradeTasks(int value)

Description copied from interface: CompactionManagerMBean

Set the number of concurrent sstable upgrade tasks we should run when automatic sstable upgrades are enabled

Specified by:

setMaxConcurrentAutoUpgradeTasks in interface CompactionManagerMBean

interruptCompactionFor

public void interruptCompactionFor(java.lang.Iterable<TableMetadata> columnFamilies,
                                   java.util.function.Predicate<SSTableReader> sstablePredicate,
                                   boolean interruptValidation)

Try to stop all of the compactions for given ColumnFamilies. Note that this method does not wait for all compactions to finish; you'll need to loop against isCompacting if you want that behavior.

Parameters:

columnFamilies - The ColumnFamilies to try to stop compaction upon.

sstablePredicate - the sstable predicate to match on

interruptValidation - true if validation operations for repair should also be interrupted

interruptCompactionForCFs

public void interruptCompactionForCFs(java.lang.Iterable<ColumnFamilyStore> cfss,
                                      java.util.function.Predicate<SSTableReader> sstablePredicate,
                                      boolean interruptValidation)

waitForCessation

public void waitForCessation(java.lang.Iterable<ColumnFamilyStore> cfss,
                             java.util.function.Predicate<SSTableReader> sstablePredicate)

getSSTableTasks

public java.util.List<CompactionInfo> getSSTableTasks()

isGlobalCompactionPaused

public boolean isGlobalCompactionPaused()

Return whether "global" compactions should be paused, used by ColumnFamilyStore#runWithCompactionsDisabled a global compaction is one that includes several/all tables, currently only IndexSummaryBuilder

pauseGlobalCompaction

public CompactionManager.CompactionPauser pauseGlobalCompaction()