org.apache.cassandra.db
Interface ColumnFamilyStoreMBean

All Known Implementing Classes:

ColumnFamilyStore

public interface ColumnFamilyStoreMBean

The MBean interface for ColumnFamilyStore

Method Summary

void	disableAutoCompaction() Disable automatic compaction.
long	estimateKeys()
void	forceMajorCompaction() force a major compaction of this column family
long	getBloomFilterDiskSpaceUsed() Deprecated.
long	getBloomFilterFalsePositives() Deprecated.
double	getBloomFilterFalseRatio() Deprecated.
java.util.List<java.lang.String>	getBuiltIndexes() Returns a list of the names of the built column indexes for current store
java.lang.String	getColumnFamilyName()
java.lang.String	getCompactionStrategyClass() Gets the compaction strategy class name
java.util.Map<java.lang.String,java.lang.String>	getCompressionParameters() Get the compression parameters
double	getCompressionRatio() Deprecated.
long[]	getEstimatedColumnCountHistogram() Deprecated.
long[]	getEstimatedRowSizeHistogram() Deprecated.
long[]	getLifetimeReadLatencyHistogramMicros() Deprecated.
long[]	getLifetimeWriteLatencyHistogramMicros() Deprecated.
long	getLiveDiskSpaceUsed() Deprecated.
int	getLiveSSTableCount() Deprecated.
int	getMaximumCompactionThreshold() Gets the maximum number of sstables in queue before compaction kicks off
long	getMaxRowSize() Deprecated.
long	getMeanRowSize() Deprecated.
long	getMemtableColumnsCount() Deprecated.
long	getMemtableDataSize() Deprecated.
int	getMemtableSwitchCount() Deprecated.
int	getMinimumCompactionThreshold() Gets the minimum number of sstables in queue before compaction kicks off
long	getMinRowSize() Deprecated.
int	getPendingTasks() Deprecated.
long	getReadCount() Deprecated.
long	getRecentBloomFilterFalsePositives() Deprecated.
double	getRecentBloomFilterFalseRatio() Deprecated.
long[]	getRecentReadLatencyHistogramMicros() Deprecated.
double	getRecentReadLatencyMicros() Deprecated.
long[]	getRecentSSTablesPerReadHistogram() Deprecated.
long[]	getRecentWriteLatencyHistogramMicros() Deprecated.
double	getRecentWriteLatencyMicros() Deprecated.
int[]	getSSTableCountPerLevel()
java.util.List<java.lang.String>	getSSTablesForKey(java.lang.String key) Returns a list of filenames that contain the given key on this node
long[]	getSSTablesPerReadHistogram() Deprecated.
long	getTotalDiskSpaceUsed() Deprecated.
long	getTotalReadLatencyMicros() Deprecated.
long	getTotalWriteLatencyMicros() Deprecated.
int	getUnleveledSSTables()
long	getWriteCount() Deprecated.
void	loadNewSSTables() Scan through Keyspace/ColumnFamily's data directory determine which SSTables should be loaded and load them
void	setCompactionStrategyClass(java.lang.String className) Sets the compaction strategy by class name
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 threshold) Sets the maximum number of sstables in queue before compaction kicks off
void	setMinimumCompactionThreshold(int threshold) Sets the minimum number of sstables in queue before compaction kicks off

Method Detail

getColumnFamilyName

java.lang.String getColumnFamilyName()

Returns:

the name of the column family

getMemtableDataSize

@Deprecated
long getMemtableDataSize()

Deprecated.

Returns the total amount of data stored in the memtable, including column related overhead.

Returns:

The size in bytes.

See Also:

ColumnFamilyMetrics.memtableDataSize

getMemtableColumnsCount

@Deprecated
long getMemtableColumnsCount()

Deprecated.

Returns the total number of columns present in the memtable.

Returns:

The number of columns.

See Also:

ColumnFamilyMetrics.memtableColumnsCount

getMemtableSwitchCount

@Deprecated
int getMemtableSwitchCount()

Deprecated.

Returns the number of times that a flush has resulted in the memtable being switched out.

Returns:

the number of memtable switches

See Also:

ColumnFamilyMetrics.memtableSwitchCount

getRecentSSTablesPerReadHistogram

@Deprecated
long[] getRecentSSTablesPerReadHistogram()

Deprecated.

Returns:

a histogram of the number of sstable data files accessed per read: reading this property resets it

See Also:

ColumnFamilyMetrics.recentSSTablesPerRead

getSSTablesPerReadHistogram

@Deprecated
long[] getSSTablesPerReadHistogram()

Deprecated.

Returns:

a histogram of the number of sstable data files accessed per read

See Also:

ColumnFamilyMetrics.sstablesPerReadHistogram

getReadCount

@Deprecated
long getReadCount()

Deprecated.

Returns:

the number of read operations on this column family

See Also:

ColumnFamilyMetrics.readLatency

getTotalReadLatencyMicros

@Deprecated
long getTotalReadLatencyMicros()

Deprecated.

Returns:

total read latency (divide by getReadCount() for average)

See Also:

ColumnFamilyMetrics.readLatency

getLifetimeReadLatencyHistogramMicros

@Deprecated
long[] getLifetimeReadLatencyHistogramMicros()

Deprecated.

Returns:

an array representing the latency histogram

See Also:

ColumnFamilyMetrics.readLatency

getRecentReadLatencyHistogramMicros

@Deprecated
long[] getRecentReadLatencyHistogramMicros()

Deprecated.

Returns:

an array representing the latency histogram

See Also:

ColumnFamilyMetrics.readLatency

getRecentReadLatencyMicros

@Deprecated
double getRecentReadLatencyMicros()

Deprecated.

Returns:

average latency per read operation since the last call

See Also:

ColumnFamilyMetrics.readLatency

getWriteCount

@Deprecated
long getWriteCount()

Deprecated.

Returns:

the number of write operations on this column family

See Also:

ColumnFamilyMetrics.writeLatency

getTotalWriteLatencyMicros

@Deprecated
long getTotalWriteLatencyMicros()

Deprecated.

Returns:

total write latency (divide by getReadCount() for average)

See Also:

ColumnFamilyMetrics.writeLatency

getLifetimeWriteLatencyHistogramMicros

@Deprecated
long[] getLifetimeWriteLatencyHistogramMicros()

Deprecated.

Returns:

an array representing the latency histogram

See Also:

ColumnFamilyMetrics.writeLatency

getRecentWriteLatencyHistogramMicros

@Deprecated
long[] getRecentWriteLatencyHistogramMicros()

Deprecated.

Returns:

an array representing the latency histogram

See Also:

ColumnFamilyMetrics.writeLatency

getRecentWriteLatencyMicros

@Deprecated
double getRecentWriteLatencyMicros()

Deprecated.

Returns:

average latency per write operation since the last call

See Also:

ColumnFamilyMetrics.writeLatency

getPendingTasks

@Deprecated
int getPendingTasks()

Deprecated.

Returns:

the estimated number of tasks pending for this column family

See Also:

ColumnFamilyMetrics.pendingTasks

getLiveSSTableCount

@Deprecated
int getLiveSSTableCount()

Deprecated.

Returns:

the number of SSTables on disk for this CF

See Also:

ColumnFamilyMetrics.liveSSTableCount

getLiveDiskSpaceUsed

@Deprecated
long getLiveDiskSpaceUsed()

Deprecated.

Returns:

disk space used by SSTables belonging to this CF

See Also:

ColumnFamilyMetrics.liveDiskSpaceUsed

getTotalDiskSpaceUsed

@Deprecated
long getTotalDiskSpaceUsed()

Deprecated.

Returns:

total disk space used by SSTables belonging to this CF, including obsolete ones waiting to be GC'd

See Also:

ColumnFamilyMetrics.totalDiskSpaceUsed

forceMajorCompaction

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

force a major compaction of this column family

Throws:

java.util.concurrent.ExecutionException

java.lang.InterruptedException

getMinRowSize

@Deprecated
long getMinRowSize()

Deprecated.

Returns:

the size of the smallest compacted row

See Also:

ColumnFamilyMetrics.minRowSize

getMaxRowSize

@Deprecated
long getMaxRowSize()

Deprecated.

Returns:

the size of the largest compacted row

See Also:

ColumnFamilyMetrics.maxRowSize

getMeanRowSize

@Deprecated
long getMeanRowSize()

Deprecated.

Returns:

the size of the smallest compacted row

See Also:

ColumnFamilyMetrics.meanRowSize

getBloomFilterFalsePositives

@Deprecated
long getBloomFilterFalsePositives()

Deprecated.

See Also:

ColumnFamilyMetrics.bloomFilterFalsePositives

getRecentBloomFilterFalsePositives

@Deprecated
long getRecentBloomFilterFalsePositives()

Deprecated.

See Also:

ColumnFamilyMetrics.recentBloomFilterFalsePositives

getBloomFilterFalseRatio

@Deprecated
double getBloomFilterFalseRatio()

Deprecated.

See Also:

ColumnFamilyMetrics.bloomFilterFalseRatio

getRecentBloomFilterFalseRatio

@Deprecated
double getRecentBloomFilterFalseRatio()

Deprecated.

See Also:

ColumnFamilyMetrics.recentBloomFilterFalseRatio

getBloomFilterDiskSpaceUsed

@Deprecated
long getBloomFilterDiskSpaceUsed()

Deprecated.

See Also:

ColumnFamilyMetrics.bloomFilterDiskSpaceUsed

getMinimumCompactionThreshold

int getMinimumCompactionThreshold()

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

setMinimumCompactionThreshold

void setMinimumCompactionThreshold(int threshold)

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

getMaximumCompactionThreshold

int getMaximumCompactionThreshold()

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

setCompactionThresholds

void setCompactionThresholds(int minThreshold,
                             int maxThreshold)

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

setMaximumCompactionThreshold

void setMaximumCompactionThreshold(int threshold)

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

setCompactionStrategyClass

void setCompactionStrategyClass(java.lang.String className)

Sets the compaction strategy by class name

Parameters:

className - the name of the compaction strategy class

getCompactionStrategyClass

java.lang.String getCompactionStrategyClass()

Gets the compaction strategy class name

getCompressionParameters

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

Get the compression parameters

setCompressionParameters

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

Set the compression parameters

Parameters:

opts - map of string names to values

setCrcCheckChance

void setCrcCheckChance(double crcCheckChance)

Set new crc check chance

disableAutoCompaction

void disableAutoCompaction()

Disable automatic compaction.

estimateKeys

long estimateKeys()

getEstimatedRowSizeHistogram

@Deprecated
long[] getEstimatedRowSizeHistogram()

Deprecated.

See Also:

ColumnFamilyMetrics.estimatedRowSizeHistogram

getEstimatedColumnCountHistogram

@Deprecated
long[] getEstimatedColumnCountHistogram()

Deprecated.

See Also:

ColumnFamilyMetrics.estimatedColumnCountHistogram

getCompressionRatio

@Deprecated
double getCompressionRatio()

Deprecated.

See Also:

ColumnFamilyMetrics.compressionRatio

getBuiltIndexes

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

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

Returns:

list of the index names

getSSTablesForKey

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

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

Parameters:

key -

Returns:

list of filenames containing the key

loadNewSSTables

void loadNewSSTables()

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

getUnleveledSSTables

int getUnleveledSSTables()

Returns:

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

getSSTableCountPerLevel

int[] getSSTableCountPerLevel()

Returns:

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