Package org.apache.cassandra.db.compaction.unified

Class ShardedMultiWriter

java.lang.Object

org.apache.cassandra.db.compaction.unified.ShardedMultiWriter

All Implemented Interfaces:

AutoCloseable, SSTableMultiWriter, Transactional

public class ShardedMultiWriter
extends Object
implements SSTableMultiWriter

A SSTableMultiWriter that splits the output sstable at the partition boundaries of the compaction shards used by UnifiedCompactionStrategy.

This is class is similar to ShardedCompactionWriter but for flushing. Unfortunately we currently have 2 separate writers hierarchy that are not compatible and so we must duplicate the functionality.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.cassandra.utils.concurrent.Transactional

Transactional.AbstractTransactional

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor	Description
ShardedMultiWriter(ColumnFamilyStore cfs, Descriptor descriptor, long keyCount, long repairedAt, TimeUUID pendingRepair, boolean isTransient, IntervalSet<CommitLogPosition> commitLogPositions, SerializationHeader header, Collection<Index.Group> indexGroups, LifecycleNewTracker lifecycleNewTracker, ShardTracker boundaries)

Method Summary

Modifier and Type	Method	Description
Throwable	abort(Throwable accumulate)
void	append(UnfilteredRowIterator partition)	Writes a partition in an implementation specific way
void	close()
Throwable	commit(Throwable accumulate)
Collection<SSTableReader>	finish(boolean openResult)
Collection<SSTableReader>	finished()
long	getBytesWritten()
String	getFilename()
long	getOnDiskBytesWritten()
TableId	getTableId()
void	prepareToCommit()
SSTableMultiWriter	setOpenResult(boolean openResult)

Methods inherited from class java.lang.Object

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

Field Details

logger

protected static final org.slf4j.Logger logger

Constructor Details

ShardedMultiWriter

public ShardedMultiWriter(ColumnFamilyStore cfs,
 Descriptor descriptor,
 long keyCount,
 long repairedAt,
 TimeUUID pendingRepair,
 boolean isTransient,
 IntervalSet<CommitLogPosition> commitLogPositions,
 SerializationHeader header,
 Collection<Index.Group> indexGroups,
 LifecycleNewTracker lifecycleNewTracker,
 ShardTracker boundaries)

Method Details

append

public void append(UnfilteredRowIterator partition)

Description copied from interface: SSTableMultiWriter

Writes a partition in an implementation specific way

Specified by:

append in interface SSTableMultiWriter

Parameters:

partition - the partition to append

finish

public Collection<SSTableReader> finish(boolean openResult)

Specified by:

finish in interface SSTableMultiWriter

finished

public Collection<SSTableReader> finished()

Specified by:

finished in interface SSTableMultiWriter

setOpenResult

public SSTableMultiWriter setOpenResult(boolean openResult)

Specified by:

setOpenResult in interface SSTableMultiWriter

getFilename

public String getFilename()

Specified by:

getFilename in interface SSTableMultiWriter

getBytesWritten

public long getBytesWritten()

Specified by:

getBytesWritten in interface SSTableMultiWriter

getOnDiskBytesWritten

public long getOnDiskBytesWritten()

Specified by:

getOnDiskBytesWritten in interface SSTableMultiWriter

getTableId

public TableId getTableId()

Specified by:

getTableId in interface SSTableMultiWriter

commit

public Throwable commit(Throwable accumulate)

Specified by:

commit in interface Transactional

abort

public Throwable abort(Throwable accumulate)

Specified by:

abort in interface Transactional

prepareToCommit

public void prepareToCommit()

Specified by:

prepareToCommit in interface Transactional

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Transactional