org.apache.cassandra.db

Class ColumnFamilyStore

java.lang.Object

org.apache.cassandra.db.ColumnFamilyStore

All Implemented Interfaces:

ColumnFamilyStoreMBean

public class ColumnFamilyStore
extends java.lang.Object
implements ColumnFamilyStoreMBean

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ColumnFamilyStore.FlushLargestColumnFamily Finds the largest memtable, as a percentage of *either* on- or off-heap memory limits, and immediately queues it for flushing.
static class	ColumnFamilyStore.RefViewFragment
static class	ColumnFamilyStore.ViewFragment

Field Summary

Fields

Modifier and Type	Field and Description
SecondaryIndexManager	indexManager
Keyspace	keyspace
CFMetaData	metadata
TableMetrics	metric
java.lang.String	name
OpOrder	readOrdering
long	sampleLatencyNanos
static java.lang.String	SNAPSHOT_DROP_PREFIX
static java.lang.String	SNAPSHOT_TRUNCATE_PREFIX
TableViews	viewManager

Constructor Summary

Constructors

Constructor and Description
ColumnFamilyStore(Keyspace keyspace, java.lang.String columnFamilyName, int generation, CFMetaData metadata, Directories directories, boolean loadSSTables, boolean registerBookeeping, boolean offline)

Method Summary

Modifier and Type	Method and Description
static void	addInitialDirectories(Directories.DataDirectory[] newDirectories) A hook to add additional directories to initialDirectories.
void	addSSTable(SSTableReader sstable)
void	addSSTables(java.util.Collection<SSTableReader> sstables)
static java.lang.Iterable<ColumnFamilyStore>	all()
void	apply(PartitionUpdate update, UpdateTransaction indexer, OpOrder.Group opGroup, CommitLogPosition commitLogPosition) Insert/Update the column family for this key.
void	beginLocalSampling(java.lang.String sampler, int capacity) begin sampling for a specific sampler with a given capacity.
void	cleanupCache()
protected static void	clearEphemeralSnapshots(Directories directories)
void	clearSnapshot(java.lang.String snapshotName) Clear all the snapshots for a given column family.
void	clearUnsafe() For testing.
void	compactionDiskSpaceCheck(boolean enable)
java.lang.Iterable<ColumnFamilyStore>	concatWithIndexes()
boolean	containsCachedParition(DecoratedKey key)
static ColumnFamilyStore	createColumnFamilyStore(Keyspace keyspace, CFMetaData metadata, boolean loadSSTables)
static ColumnFamilyStore	createColumnFamilyStore(Keyspace keyspace, java.lang.String columnFamily, CFMetaData metadata, boolean loadSSTables)
static ColumnFamilyStore	createColumnFamilyStore(Keyspace keyspace, java.lang.String columnFamily, CFMetaData metadata, Directories directories, boolean loadSSTables, boolean registerBookkeeping, boolean offline) This is only directly used by offline tools
SSTableMultiWriter	createSSTableMultiWriter(Descriptor descriptor, long keyCount, long repairedAt, int sstableLevel, SerializationHeader header, LifecycleTransaction txn)
SSTableMultiWriter	createSSTableMultiWriter(Descriptor descriptor, long keyCount, long repairedAt, MetadataCollector metadataCollector, SerializationHeader header, LifecycleTransaction txn)
DecoratedKey	decorateKey(java.nio.ByteBuffer key)
void	disableAutoCompaction()
void	discardSSTables(long truncatedAt) Discard all SSTables that were created before given timestamp.
java.util.concurrent.Future<CommitLogPosition>	dumpMemtable() Drops current memtable without flushing to disk.
void	enableAutoCompaction()
void	enableAutoCompaction(boolean waitForFutures) used for tests - to be able to check things after a minor compaction
long	estimatedKeysForRange(Range<Token> range)
long	estimateKeys()
javax.management.openmbean.CompositeData	finishLocalSampling(java.lang.String sampler, int count)
CommitLogPosition	forceBlockingFlush()
CompactionManager.AllSSTableOpStatus	forceCleanup(int jobs)
void	forceCompactionForTokenRange(java.util.Collection<Range<Token>> tokenRanges) force a major compaction of specified key range in this column family
com.google.common.util.concurrent.ListenableFuture<CommitLogPosition>	forceFlush() Flush if there is unflushed data in the memtables
com.google.common.util.concurrent.ListenableFuture<?>	forceFlush(CommitLogPosition flushIfDirtyBefore) Flush if there is unflushed data that was written to the CommitLog before @param flushIfDirtyBefore (inclusive).
void	forceMajorCompaction()
void	forceMajorCompaction(boolean splitOutput) force a major compaction of this column family
CompactionManager.AllSSTableOpStatus	garbageCollect(CompactionParams.TombstoneOption tombstoneOption, int jobs)
int	gcBefore(int nowInSec)
Refs<SSTableReader>	getAndReferenceOverlappingLiveSSTables(java.lang.Iterable<SSTableReader> sstables) like getOverlappingSSTables, but acquires references before returning
static java.lang.Runnable	getBackgroundCompactionTaskSubmitter()
java.util.List<java.lang.String>	getBuiltIndexes() Returns a list of the names of the built column indexes for current store
ClockAndCount	getCachedCounter(java.nio.ByteBuffer partitionKey, Clustering clustering, ColumnDefinition column, CellPath path)
java.lang.String	getColumnFamilyName() Deprecated.
java.util.Map<java.lang.String,java.lang.String>	getCompactionParameters()
java.lang.String	getCompactionParametersJson()
CompactionStrategyManager	getCompactionStrategyManager()
ClusteringComparator	getComparator()
java.util.Map<java.lang.String,java.lang.String>	getCompressionParameters() Get the compression parameters
java.lang.Double	getCrcCheckChance()
Directories	getDirectories()
double	getDroppableTombstoneRatio() Get the ratio of droppable tombstones to real columns (and non-droppable tombstones)
long	getExpectedCompactedFileSize(java.lang.Iterable<SSTableReader> sstables, OperationType operation) Calculate expected file size of SSTable after compaction.
static ColumnFamilyStore	getIfExists(java.lang.String ksName, java.lang.String cfName) Returns a ColumnFamilyStore by ksname and cfname if it exists, null otherwise Differently from others, this method does not throw exception if the keyspace or table does not exist.
static ColumnFamilyStore	getIfExists(java.util.UUID cfId) Returns a ColumnFamilyStore by cfId if it exists, null otherwise Differently from others, this method does not throw exception if the table does not exist.
static Directories.DataDirectory[]	getInitialDirectories()
int	getLevelFanoutSize()
java.util.Set<SSTableReader>	getLiveSSTables()
int	getMaximumCompactionThreshold() Gets the maximum number of sstables in queue before compaction kicks off
SSTableReader	getMaxSizeFile(java.lang.Iterable<SSTableReader> sstables)
int	getMeanColumns()
double	getMeanPartitionSize()
int	getMinimumCompactionThreshold() Gets the minimum number of sstables in queue before compaction kicks off
java.util.Collection<SSTableReader>	getOverlappingLiveSSTables(java.lang.Iterable<SSTableReader> sstables)
IPartitioner	getPartitioner()
CachedPartition	getRawCachedPartition(DecoratedKey key)
long	getSnapshotCreationTime(java.lang.String snapshotName)
java.util.Map<java.lang.String,Pair<java.lang.Long,java.lang.Long>>	getSnapshotDetails()
Refs<SSTableReader>	getSnapshotSSTableReader(java.lang.String tag)
int[]	getSSTableCountPerLevel()
java.lang.String	getSSTablePath(java.io.File directory)
java.lang.String	getSSTablePath(java.io.File directory, SSTableFormat.Type format)
java.lang.Iterable<SSTableReader>	getSSTables(SSTableSet sstableSet)
java.util.List<java.lang.String>	getSSTablesForKey(java.lang.String key) Returns a list of filenames that contain the given key on this node
java.util.List<java.lang.String>	getSSTablesForKey(java.lang.String key, boolean hexFormat) Returns a list of filenames that contain the given key on this node
java.lang.String	getTableName()
Tracker	getTracker() Package protected for access from the CompactionManager.
java.lang.Iterable<SSTableReader>	getUncompactingSSTables()
int	getUnleveledSSTables()
void	invalidate() call when dropping or renaming a CF.
void	invalidate(boolean expectMBean)
void	invalidateCachedPartition(DecoratedKey key)
void	invalidateCachedPartition(RowCacheKey key)
int	invalidateCounterCache(java.util.Collection<Bounds<Token>> boundsToInvalidate)
int	invalidateRowCache(java.util.Collection<Bounds<Token>> boundsToInvalidate)
boolean	isAutoCompactionDisabled()
boolean	isCompactionDiskSpaceCheckEnabled()
boolean	isCounterCacheEnabled()
boolean	isEmpty()
boolean	isFilterFullyCoveredBy(ClusteringIndexFilter filter, DataLimits limits, CachedPartition cached, int nowInSec)
boolean	isIndex() true if this CFS contains secondary index data
boolean	isKeyCacheEnabled()
boolean	isRowCacheEnabled()
boolean	isValid()
java.lang.Iterable<DecoratedKey>	keySamples(Range<Token> range)
void	loadNewSSTables() #Scan through Keyspace/ColumnFamily's data directory determine which SSTables should be loaded and load them
static void	loadNewSSTables(java.lang.String ksName, java.lang.String cfName) See #StorageService.loadNewSSTables(String, String) for more info
LifecycleTransaction	markAllCompacting(OperationType operationType)
void	markObsolete(java.util.Collection<SSTableReader> sstables, OperationType compactionType)
void	putCachedCounter(java.nio.ByteBuffer partitionKey, Clustering clustering, ColumnDefinition column, CellPath path, ClockAndCount clockAndCount)
boolean	rebuildOnFailedScrub(java.lang.Throwable failure) CASSANDRA-5174 : For an index cfs we may be able to discard everything and just rebuild the index when a scrub fails.
void	rebuildSecondaryIndex(java.lang.String idxName)
static void	rebuildSecondaryIndex(java.lang.String ksName, java.lang.String cfName, java.lang.String... idxNames)
void	reload()
CompactionManager.AllSSTableOpStatus	relocateSSTables(int jobs)
<V> V	runWithCompactionsDisabled(java.util.concurrent.Callable<V> callable, boolean interruptValidation, boolean interruptViews)
CompactionManager.AllSSTableOpStatus	scrub(boolean disableSnapshot, boolean skipCorrupted, boolean alwaysFail, boolean checkData, int jobs)
CompactionManager.AllSSTableOpStatus	scrub(boolean disableSnapshot, boolean skipCorrupted, boolean checkData, int jobs)
static void	scrubDataDirectories(CFMetaData metadata) Removes unnecessary files from the cf directory at startup: these include temp files, orphans, zero-length files and compacted sstables.
ColumnFamilyStore.ViewFragment	select(com.google.common.base.Function<View,java.lang.Iterable<SSTableReader>> filter)
ColumnFamilyStore.RefViewFragment	selectAndReference(com.google.common.base.Function<View,java.lang.Iterable<SSTableReader>> filter)
void	setCompactionParameters(java.util.Map<java.lang.String,java.lang.String> options) Sets the compaction parameters locally for this node Note that this will be set until an ALTER with compaction = {..} is executed or the node is restarted
void	setCompactionParametersJson(java.lang.String options) Sets the compaction parameters locally for this node Note that this will be set until an ALTER with compaction = {..} is executed or the node is restarted
void	setCompactionThresholds(int minThreshold, int maxThreshold) Sets the maximum and maximum number of SSTables in queue before compaction kicks off
void	setCompressionParameters(java.util.Map<java.lang.String,java.lang.String> opts) Set the compression parameters
void	setCrcCheckChance(double crcCheckChance) Set new crc check chance
void	setMaximumCompactionThreshold(int maxCompactionThreshold) Sets the maximum number of sstables in queue before compaction kicks off
void	setMinimumCompactionThreshold(int minCompactionThreshold) Sets the minimum number of sstables in queue before compaction kicks off
static void	shutdownPostFlushExecutor()
java.util.Set<SSTableReader>	snapshot(java.lang.String snapshotName) Take a snap shot of this columnfamily store.
java.util.Set<SSTableReader>	snapshot(java.lang.String snapshotName, boolean skipFlush) Take a snap shot of this columnfamily store.
java.util.Set<SSTableReader>	snapshot(java.lang.String snapshotName, com.google.common.base.Predicate<SSTableReader> predicate, boolean ephemeral, boolean skipFlush)
boolean	snapshotExists(java.lang.String snapshotName)
void	snapshotWithoutFlush(java.lang.String snapshotName)
java.util.Set<SSTableReader>	snapshotWithoutFlush(java.lang.String snapshotName, com.google.common.base.Predicate<SSTableReader> predicate, boolean ephemeral)
CompactionManager.AllSSTableOpStatus	sstablesRewrite(boolean excludeCurrentVersion, int jobs)
boolean	supportsEarlyOpen()
com.google.common.util.concurrent.ListenableFuture<CommitLogPosition>	switchMemtable()
com.google.common.util.concurrent.ListenableFuture<CommitLogPosition>	switchMemtableIfCurrent(Memtable memtable) Switches the memtable iff the live memtable is the one provided
java.lang.String	toString()
long	trueSnapshotsSize()
void	truncateBlocking() Truncate deletes the entire column family's data with no expensive tombstone creation
CompactionManager.AllSSTableOpStatus	verify(boolean extendedVerify)

Methods inherited from class java.lang.Object

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

Field Detail

SNAPSHOT_TRUNCATE_PREFIX

public static final java.lang.String SNAPSHOT_TRUNCATE_PREFIX

See Also:

Constant Field Values

SNAPSHOT_DROP_PREFIX

public static final java.lang.String SNAPSHOT_DROP_PREFIX

See Also:

Constant Field Values

keyspace

public final Keyspace keyspace

name

public final java.lang.String name

metadata

public final CFMetaData metadata

readOrdering

public final OpOrder readOrdering

indexManager

public final SecondaryIndexManager indexManager

viewManager

public final TableViews viewManager

metric

public final TableMetrics metric

sampleLatencyNanos

public volatile long sampleLatencyNanos

Constructor Detail

ColumnFamilyStore

public ColumnFamilyStore(Keyspace keyspace,
                         java.lang.String columnFamilyName,
                         int generation,
                         CFMetaData metadata,
                         Directories directories,
                         boolean loadSSTables,
                         boolean registerBookeeping,
                         boolean offline)

Method Detail

addInitialDirectories

public static void addInitialDirectories(Directories.DataDirectory[] newDirectories)

A hook to add additional directories to initialDirectories. Any additional directories should be added prior to ColumnFamilyStore instantiation on startup Since the directories used by a given table are determined by the compaction strategy, it's possible for sstables to be written to directories specified outside of cassandra.yaml. By adding additional directories to initialDirectories, sstables in these extra locations are made discoverable on sstable instantiation.

getInitialDirectories

public static Directories.DataDirectory[] getInitialDirectories()

shutdownPostFlushExecutor

public static void shutdownPostFlushExecutor()
                                      throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

reload

public void reload()

getBackgroundCompactionTaskSubmitter

public static java.lang.Runnable getBackgroundCompactionTaskSubmitter()

setCompactionParametersJson

public void setCompactionParametersJson(java.lang.String options)

Description copied from interface: ColumnFamilyStoreMBean

Sets the compaction parameters locally for this node Note that this will be set until an ALTER with compaction = {..} is executed or the node is restarted

Specified by:

setCompactionParametersJson in interface ColumnFamilyStoreMBean

Parameters:

options - compaction options with the same syntax as when doing ALTER ... WITH compaction = {..}

getCompactionParametersJson

public java.lang.String getCompactionParametersJson()

Specified by:

getCompactionParametersJson in interface ColumnFamilyStoreMBean

setCompactionParameters

public void setCompactionParameters(java.util.Map<java.lang.String,java.lang.String> options)

Description copied from interface: ColumnFamilyStoreMBean

Sets the compaction parameters locally for this node Note that this will be set until an ALTER with compaction = {..} is executed or the node is restarted

Specified by:

setCompactionParameters in interface ColumnFamilyStoreMBean

Parameters:

options - compaction options map

getCompactionParameters

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

Specified by:

getCompactionParameters in interface ColumnFamilyStoreMBean

getCompressionParameters

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

Description copied from interface: ColumnFamilyStoreMBean

Get the compression parameters

Specified by:

getCompressionParameters in interface ColumnFamilyStoreMBean

setCompressionParameters

public void setCompressionParameters(java.util.Map<java.lang.String,java.lang.String> opts)

Description copied from interface: ColumnFamilyStoreMBean

Set the compression parameters

Specified by:

setCompressionParameters in interface ColumnFamilyStoreMBean

Parameters:

opts - map of string names to values

getDirectories

public Directories getDirectories()

createSSTableMultiWriter

public SSTableMultiWriter createSSTableMultiWriter(Descriptor descriptor,
                                                   long keyCount,
                                                   long repairedAt,
                                                   int sstableLevel,
                                                   SerializationHeader header,
                                                   LifecycleTransaction txn)

createSSTableMultiWriter

public SSTableMultiWriter createSSTableMultiWriter(Descriptor descriptor,
                                                   long keyCount,
                                                   long repairedAt,
                                                   MetadataCollector metadataCollector,
                                                   SerializationHeader header,
                                                   LifecycleTransaction txn)

supportsEarlyOpen

public boolean supportsEarlyOpen()

invalidate

public void invalidate()

call when dropping or renaming a CF. Performs mbean housekeeping and invalidates CFS to other operations

invalidate

public void invalidate(boolean expectMBean)

createColumnFamilyStore

public static ColumnFamilyStore createColumnFamilyStore(Keyspace keyspace,
                                                        CFMetaData metadata,
                                                        boolean loadSSTables)

createColumnFamilyStore

public static ColumnFamilyStore createColumnFamilyStore(Keyspace keyspace,
                                                        java.lang.String columnFamily,
                                                        CFMetaData metadata,
                                                        boolean loadSSTables)

createColumnFamilyStore

public static ColumnFamilyStore createColumnFamilyStore(Keyspace keyspace,
                                                        java.lang.String columnFamily,
                                                        CFMetaData metadata,
                                                        Directories directories,
                                                        boolean loadSSTables,
                                                        boolean registerBookkeeping,
                                                        boolean offline)

This is only directly used by offline tools

scrubDataDirectories

public static void scrubDataDirectories(CFMetaData metadata)
                                 throws StartupException

Removes unnecessary files from the cf directory at startup: these include temp files, orphans, zero-length files and compacted sstables. Files that cannot be recognized will be ignored.

Throws:

StartupException

loadNewSSTables

public static void loadNewSSTables(java.lang.String ksName,
                                   java.lang.String cfName)

See #StorageService.loadNewSSTables(String, String) for more info

Parameters:

ksName - The keyspace name

cfName - The columnFamily name

loadNewSSTables

public void loadNewSSTables()

#Scan through Keyspace/ColumnFamily's data directory determine which SSTables should be loaded and load them

Specified by:

loadNewSSTables in interface ColumnFamilyStoreMBean

rebuildSecondaryIndex

public void rebuildSecondaryIndex(java.lang.String idxName)

rebuildSecondaryIndex

public static void rebuildSecondaryIndex(java.lang.String ksName,
                                         java.lang.String cfName,
                                         java.lang.String... idxNames)

getColumnFamilyName

@Deprecated
public java.lang.String getColumnFamilyName()

Deprecated.

Specified by:

getColumnFamilyName in interface ColumnFamilyStoreMBean

Returns:

the name of the column family

getTableName

public java.lang.String getTableName()

Specified by:

getTableName in interface ColumnFamilyStoreMBean

getSSTablePath

public java.lang.String getSSTablePath(java.io.File directory)

getSSTablePath

public java.lang.String getSSTablePath(java.io.File directory,
                                       SSTableFormat.Type format)

switchMemtableIfCurrent

public com.google.common.util.concurrent.ListenableFuture<CommitLogPosition> switchMemtableIfCurrent(Memtable memtable)

Switches the memtable iff the live memtable is the one provided

Parameters:

memtable -

switchMemtable

public com.google.common.util.concurrent.ListenableFuture<CommitLogPosition> switchMemtable()

forceFlush

public com.google.common.util.concurrent.ListenableFuture<CommitLogPosition> forceFlush()

Flush if there is unflushed data in the memtables

Returns:

a Future yielding the commit log position that can be guaranteed to have been successfully written to sstables for this table once the future completes

forceFlush

public com.google.common.util.concurrent.ListenableFuture<?> forceFlush(CommitLogPosition flushIfDirtyBefore)

Flush if there is unflushed data that was written to the CommitLog before @param flushIfDirtyBefore (inclusive).

Returns:

a Future yielding the commit log position that can be guaranteed to have been successfully written to sstables for this table once the future completes

forceBlockingFlush

public CommitLogPosition forceBlockingFlush()

apply

public void apply(PartitionUpdate update,
                  UpdateTransaction indexer,
                  OpOrder.Group opGroup,
                  CommitLogPosition commitLogPosition)

Insert/Update the column family for this key. Caller is responsible for acquiring Keyspace.switchLock param @ lock - lock that needs to be used. param @ key - key for update/insert param @ columnFamily - columnFamily changes

getOverlappingLiveSSTables

public java.util.Collection<SSTableReader> getOverlappingLiveSSTables(java.lang.Iterable<SSTableReader> sstables)

Parameters:

sstables -

Returns:

sstables whose key range overlaps with that of the given sstables, not including itself. (The given sstables may or may not overlap with each other.)

getAndReferenceOverlappingLiveSSTables

public Refs<SSTableReader> getAndReferenceOverlappingLiveSSTables(java.lang.Iterable<SSTableReader> sstables)

like getOverlappingSSTables, but acquires references before returning

addSSTable

public void addSSTable(SSTableReader sstable)

addSSTables

public void addSSTables(java.util.Collection<SSTableReader> sstables)

getExpectedCompactedFileSize

public long getExpectedCompactedFileSize(java.lang.Iterable<SSTableReader> sstables,
                                         OperationType operation)

Calculate expected file size of SSTable after compaction. If operation type is CLEANUP and we're not dealing with an index sstable, then we calculate expected file size with checking token range to be eliminated. Otherwise, we just add up all the files' size, which is the worst case file size for compaction of all the list of files given.

Parameters:

sstables - SSTables to calculate expected compacted file size

operation - Operation type

Returns:

Expected file size of SSTable after compaction

getMaxSizeFile

public SSTableReader getMaxSizeFile(java.lang.Iterable<SSTableReader> sstables)

forceCleanup

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

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

scrub

public CompactionManager.AllSSTableOpStatus scrub(boolean disableSnapshot,
                                                  boolean skipCorrupted,
                                                  boolean checkData,
                                                  int jobs)
                                           throws java.util.concurrent.ExecutionException,
                                                  java.lang.InterruptedException

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

scrub

public CompactionManager.AllSSTableOpStatus scrub(boolean disableSnapshot,
                                                  boolean skipCorrupted,
                                                  boolean alwaysFail,
                                                  boolean checkData,
                                                  int jobs)
                                           throws java.util.concurrent.ExecutionException,
                                                  java.lang.InterruptedException

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

rebuildOnFailedScrub

public boolean rebuildOnFailedScrub(java.lang.Throwable failure)

CASSANDRA-5174 : For an index cfs we may be able to discard everything and just rebuild the index when a scrub fails.

Returns:

true if we are an index cfs and we successfully rebuilt the index

verify

public CompactionManager.AllSSTableOpStatus verify(boolean extendedVerify)
                                            throws java.util.concurrent.ExecutionException,
                                                   java.lang.InterruptedException

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

sstablesRewrite

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

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

relocateSSTables

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

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

garbageCollect

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

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

markObsolete

public void markObsolete(java.util.Collection<SSTableReader> sstables,
                         OperationType compactionType)

isValid

public boolean isValid()

getTracker

public Tracker getTracker()

Package protected for access from the CompactionManager.

getLiveSSTables

public java.util.Set<SSTableReader> getLiveSSTables()

getSSTables

public java.lang.Iterable<SSTableReader> getSSTables(SSTableSet sstableSet)

getUncompactingSSTables

public java.lang.Iterable<SSTableReader> getUncompactingSSTables()

isFilterFullyCoveredBy

public boolean isFilterFullyCoveredBy(ClusteringIndexFilter filter,
                                      DataLimits limits,
                                      CachedPartition cached,
                                      int nowInSec)

gcBefore

public int gcBefore(int nowInSec)

selectAndReference

public ColumnFamilyStore.RefViewFragment selectAndReference(com.google.common.base.Function<View,java.lang.Iterable<SSTableReader>> filter)

select

public ColumnFamilyStore.ViewFragment select(com.google.common.base.Function<View,java.lang.Iterable<SSTableReader>> filter)

getSSTablesForKey

public java.util.List<java.lang.String> getSSTablesForKey(java.lang.String key)

Description copied from interface: ColumnFamilyStoreMBean

Returns a list of filenames that contain the given key on this node

Specified by:

getSSTablesForKey in interface ColumnFamilyStoreMBean

Returns:

list of filenames containing the key

getSSTablesForKey

public java.util.List<java.lang.String> getSSTablesForKey(java.lang.String key,
                                                          boolean hexFormat)

Description copied from interface: ColumnFamilyStoreMBean

Returns a list of filenames that contain the given key on this node

Specified by:

getSSTablesForKey in interface ColumnFamilyStoreMBean

hexFormat - if key is in hex string format

Returns:

list of filenames containing the key

beginLocalSampling

public void beginLocalSampling(java.lang.String sampler,
                               int capacity)

Description copied from interface: ColumnFamilyStoreMBean

begin sampling for a specific sampler with a given capacity. The cardinality may be larger than the capacity, but depending on the use case it may affect its accuracy

Specified by:

beginLocalSampling in interface ColumnFamilyStoreMBean

finishLocalSampling

public javax.management.openmbean.CompositeData finishLocalSampling(java.lang.String sampler,
                                                                    int count)
                                                             throws javax.management.openmbean.OpenDataException

Specified by:

finishLocalSampling in interface ColumnFamilyStoreMBean

Returns:

top count items for the sampler since beginLocalSampling was called

Throws:

javax.management.openmbean.OpenDataException

isCompactionDiskSpaceCheckEnabled

public boolean isCompactionDiskSpaceCheckEnabled()

Specified by:

isCompactionDiskSpaceCheckEnabled in interface ColumnFamilyStoreMBean

compactionDiskSpaceCheck

public void compactionDiskSpaceCheck(boolean enable)

Specified by:

compactionDiskSpaceCheck in interface ColumnFamilyStoreMBean

cleanupCache

public void cleanupCache()

getComparator

public ClusteringComparator getComparator()

snapshotWithoutFlush

public void snapshotWithoutFlush(java.lang.String snapshotName)

snapshotWithoutFlush

public java.util.Set<SSTableReader> snapshotWithoutFlush(java.lang.String snapshotName,
                                                         com.google.common.base.Predicate<SSTableReader> predicate,
                                                         boolean ephemeral)

Parameters:

ephemeral - If this flag is set to true, the snapshot will be cleaned during next startup

clearEphemeralSnapshots

protected static void clearEphemeralSnapshots(Directories directories)

getSnapshotSSTableReader

public Refs<SSTableReader> getSnapshotSSTableReader(java.lang.String tag)
                                             throws java.io.IOException

Throws:

java.io.IOException

snapshot

public java.util.Set<SSTableReader> snapshot(java.lang.String snapshotName)

Take a snap shot of this columnfamily store.

Parameters:

snapshotName - the name of the associated with the snapshot

snapshot

public java.util.Set<SSTableReader> snapshot(java.lang.String snapshotName,
                                             boolean skipFlush)

Take a snap shot of this columnfamily store.

Parameters:

snapshotName - the name of the associated with the snapshot

skipFlush - Skip blocking flush of memtable

snapshot

public java.util.Set<SSTableReader> snapshot(java.lang.String snapshotName,
                                             com.google.common.base.Predicate<SSTableReader> predicate,
                                             boolean ephemeral,
                                             boolean skipFlush)

Parameters:

ephemeral - If this flag is set to true, the snapshot will be cleaned up during next startup

skipFlush - Skip blocking flush of memtable

snapshotExists

public boolean snapshotExists(java.lang.String snapshotName)

getSnapshotCreationTime

public long getSnapshotCreationTime(java.lang.String snapshotName)

clearSnapshot

public void clearSnapshot(java.lang.String snapshotName)

Clear all the snapshots for a given column family.

Parameters:

snapshotName - the user supplied snapshot name. If left empty, all the snapshots will be cleaned.

getSnapshotDetails

public java.util.Map<java.lang.String,Pair<java.lang.Long,java.lang.Long>> getSnapshotDetails()

Returns:

Return a map of all snapshots to space being used The pair for a snapshot has true size and size on disk.

getRawCachedPartition

public CachedPartition getRawCachedPartition(DecoratedKey key)

Returns:

the cached partition for @param key if it is already present in the cache. Not that this will not readAndCache the parition if it is not present, nor are these calls counted in cache statistics. Note that this WILL cause deserialization of a SerializingCache partition, so if all you need to know is whether a partition is present or not, use containsCachedParition instead.

invalidateRowCache

public int invalidateRowCache(java.util.Collection<Bounds<Token>> boundsToInvalidate)

invalidateCounterCache

public int invalidateCounterCache(java.util.Collection<Bounds<Token>> boundsToInvalidate)

containsCachedParition

public boolean containsCachedParition(DecoratedKey key)

Returns:

true if @param key is contained in the row cache

invalidateCachedPartition

public void invalidateCachedPartition(RowCacheKey key)

invalidateCachedPartition

public void invalidateCachedPartition(DecoratedKey key)

getCachedCounter

public ClockAndCount getCachedCounter(java.nio.ByteBuffer partitionKey,
                                      Clustering clustering,
                                      ColumnDefinition column,
                                      CellPath path)

putCachedCounter

public void putCachedCounter(java.nio.ByteBuffer partitionKey,
                             Clustering clustering,
                             ColumnDefinition column,
                             CellPath path,
                             ClockAndCount clockAndCount)

forceMajorCompaction

public void forceMajorCompaction()
                          throws java.lang.InterruptedException,
                                 java.util.concurrent.ExecutionException

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

forceMajorCompaction

public void forceMajorCompaction(boolean splitOutput)
                          throws java.lang.InterruptedException,
                                 java.util.concurrent.ExecutionException

Description copied from interface: ColumnFamilyStoreMBean

force a major compaction of this column family

Specified by:

forceMajorCompaction in interface ColumnFamilyStoreMBean

Parameters:

splitOutput - true if the output of the major compaction should be split in several sstables

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

forceCompactionForTokenRange

public void forceCompactionForTokenRange(java.util.Collection<Range<Token>> tokenRanges)
                                  throws java.util.concurrent.ExecutionException,
                                         java.lang.InterruptedException

Description copied from interface: ColumnFamilyStoreMBean

force a major compaction of specified key range in this column family

Specified by:

forceCompactionForTokenRange in interface ColumnFamilyStoreMBean

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

all

public static java.lang.Iterable<ColumnFamilyStore> all()

keySamples

public java.lang.Iterable<DecoratedKey> keySamples(Range<Token> range)

estimatedKeysForRange

public long estimatedKeysForRange(Range<Token> range)

clearUnsafe

public void clearUnsafe()

For testing. No effort is made to clear historical or even the current memtables, nor for thread safety. All we do is wipe the sstable containers clean, while leaving the actual data files present on disk. (This allows tests to easily call loadNewSSTables on them.)

truncateBlocking

public void truncateBlocking()

Truncate deletes the entire column family's data with no expensive tombstone creation

dumpMemtable

public java.util.concurrent.Future<CommitLogPosition> dumpMemtable()

Drops current memtable without flushing to disk. This should only be called when truncating a column family which is not durable.

runWithCompactionsDisabled

public <V> V runWithCompactionsDisabled(java.util.concurrent.Callable<V> callable,
                                        boolean interruptValidation,
                                        boolean interruptViews)

markAllCompacting

public LifecycleTransaction markAllCompacting(OperationType operationType)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

disableAutoCompaction

public void disableAutoCompaction()

enableAutoCompaction

public void enableAutoCompaction()

enableAutoCompaction

public void enableAutoCompaction(boolean waitForFutures)

used for tests - to be able to check things after a minor compaction

Parameters:

waitForFutures - if we should block until autocompaction is done

isAutoCompactionDisabled

public boolean isAutoCompactionDisabled()

Specified by:

isAutoCompactionDisabled in interface ColumnFamilyStoreMBean

getCompactionStrategyManager

public CompactionStrategyManager getCompactionStrategyManager()

setCrcCheckChance

public void setCrcCheckChance(double crcCheckChance)

Description copied from interface: ColumnFamilyStoreMBean

Set new crc check chance

Specified by:

setCrcCheckChance in interface ColumnFamilyStoreMBean

getCrcCheckChance

public java.lang.Double getCrcCheckChance()

setCompactionThresholds

public void setCompactionThresholds(int minThreshold,
                                    int maxThreshold)

Description copied from interface: ColumnFamilyStoreMBean

Sets the maximum and maximum number of SSTables in queue before compaction kicks off

Specified by:

setCompactionThresholds in interface ColumnFamilyStoreMBean

getMinimumCompactionThreshold

public int getMinimumCompactionThreshold()

Description copied from interface: ColumnFamilyStoreMBean

Gets the minimum number of sstables in queue before compaction kicks off

Specified by:

getMinimumCompactionThreshold in interface ColumnFamilyStoreMBean

setMinimumCompactionThreshold

public void setMinimumCompactionThreshold(int minCompactionThreshold)

Description copied from interface: ColumnFamilyStoreMBean

Sets the minimum number of sstables in queue before compaction kicks off

Specified by:

setMinimumCompactionThreshold in interface ColumnFamilyStoreMBean

getMaximumCompactionThreshold

public int getMaximumCompactionThreshold()

Description copied from interface: ColumnFamilyStoreMBean

Gets the maximum number of sstables in queue before compaction kicks off

Specified by:

getMaximumCompactionThreshold in interface ColumnFamilyStoreMBean

setMaximumCompactionThreshold

public void setMaximumCompactionThreshold(int maxCompactionThreshold)

Description copied from interface: ColumnFamilyStoreMBean

Sets the maximum number of sstables in queue before compaction kicks off

Specified by:

setMaximumCompactionThreshold in interface ColumnFamilyStoreMBean

getMeanColumns

public int getMeanColumns()

getMeanPartitionSize

public double getMeanPartitionSize()

estimateKeys

public long estimateKeys()

Specified by:

estimateKeys in interface ColumnFamilyStoreMBean

getPartitioner

public IPartitioner getPartitioner()

decorateKey

public DecoratedKey decorateKey(java.nio.ByteBuffer key)

isIndex

public boolean isIndex()

true if this CFS contains secondary index data

concatWithIndexes

public java.lang.Iterable<ColumnFamilyStore> concatWithIndexes()

getBuiltIndexes

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

Description copied from interface: ColumnFamilyStoreMBean

Returns a list of the names of the built column indexes for current store

Specified by:

getBuiltIndexes in interface ColumnFamilyStoreMBean

Returns:

list of the index names

getUnleveledSSTables

public int getUnleveledSSTables()

Specified by:

getUnleveledSSTables in interface ColumnFamilyStoreMBean

Returns:

the number of SSTables in L0. Always return 0 if Leveled compaction is not enabled.

getSSTableCountPerLevel

public int[] getSSTableCountPerLevel()

Specified by:

getSSTableCountPerLevel in interface ColumnFamilyStoreMBean

Returns:

sstable count for each level. null unless leveled compaction is used. array index corresponds to level(int[0] is for level 0, ...).

getLevelFanoutSize

public int getLevelFanoutSize()

Specified by:

getLevelFanoutSize in interface ColumnFamilyStoreMBean

Returns:

sstable fanout size for level compaction strategy.

isEmpty

public boolean isEmpty()

isRowCacheEnabled

public boolean isRowCacheEnabled()

isCounterCacheEnabled

public boolean isCounterCacheEnabled()

isKeyCacheEnabled

public boolean isKeyCacheEnabled()

discardSSTables

public void discardSSTables(long truncatedAt)

Discard all SSTables that were created before given timestamp. Caller should first ensure that comapctions have quiesced.

Parameters:

truncatedAt - The timestamp of the truncation (all SSTables before that timestamp are going be marked as compacted)

getDroppableTombstoneRatio

public double getDroppableTombstoneRatio()

Description copied from interface: ColumnFamilyStoreMBean

Get the ratio of droppable tombstones to real columns (and non-droppable tombstones)

Specified by:

getDroppableTombstoneRatio in interface ColumnFamilyStoreMBean

Returns:

ratio

trueSnapshotsSize

public long trueSnapshotsSize()

Specified by:

trueSnapshotsSize in interface ColumnFamilyStoreMBean

Returns:

the size of SSTables in "snapshots" subdirectory which aren't live anymore

getIfExists

public static ColumnFamilyStore getIfExists(java.util.UUID cfId)

Returns a ColumnFamilyStore by cfId if it exists, null otherwise Differently from others, this method does not throw exception if the table does not exist.

getIfExists

public static ColumnFamilyStore getIfExists(java.lang.String ksName,
                                            java.lang.String cfName)

Returns a ColumnFamilyStore by ksname and cfname if it exists, null otherwise Differently from others, this method does not throw exception if the keyspace or table does not exist.