Package org.apache.jackrabbit.oak.index.indexer.document.flatfile.pipelined

Class PipelinedMergeSortTask

java.lang.Object

org.apache.jackrabbit.oak.index.indexer.document.flatfile.pipelined.PipelinedMergeSortTask

All Implemented Interfaces:

java.util.concurrent.Callable<PipelinedMergeSortTask.Result>

public class PipelinedMergeSortTask
extends java.lang.Object
implements java.util.concurrent.Callable<PipelinedMergeSortTask.Result>

Accumulates the intermediate sorted files and, when all files are generated, merges them into a single sorted file, the flat file store

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PipelinedMergeSortTask.Result

Field Summary

Fields

Modifier and Type	Field	Description
static int	DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_FILES_TO_MERGE
static int	DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_SIZE_TO_MERGE_MB
static int	DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MIN_FILES_TO_MERGE
static int	DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_TRIGGER_THRESHOLD
static int	DEFAULT_OAK_INDEXER_PIPELINED_EXTERNAL_MERGE_READ_BUFFER_SIZE
static java.lang.String	OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_FILES_TO_MERGE
static java.lang.String	OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_SIZE_TO_MERGE_MB
static java.lang.String	OAK_INDEXER_PIPELINED_EAGER_MERGE_MIN_FILES_TO_MERGE
static java.lang.String	OAK_INDEXER_PIPELINED_EAGER_MERGE_TRIGGER_THRESHOLD	Minimum number of intermediate files that must exist before trying to do an eager merge
static java.lang.String	OAK_INDEXER_PIPELINED_EXTERNAL_MERGE_READ_BUFFER_SIZE

Constructor Summary

Constructors

Constructor	Description
PipelinedMergeSortTask(java.nio.file.Path storeDir, PathElementComparator pathComparator, Compression algorithm, java.util.concurrent.BlockingQueue<java.nio.file.Path> sortedFilesQueue, StatisticsProvider statisticsProvider, IndexingReporter reporter)

Method Summary

Modifier and Type	Method	Description
PipelinedMergeSortTask.Result	call()
void	stopEagerMerging()	Stops eager merging.

Methods inherited from class java.lang.Object

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

Field Detail

OAK_INDEXER_PIPELINED_EAGER_MERGE_TRIGGER_THRESHOLD

public static final java.lang.String OAK_INDEXER_PIPELINED_EAGER_MERGE_TRIGGER_THRESHOLD

Minimum number of intermediate files that must exist before trying to do an eager merge

See Also:

Constant Field Values

DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_TRIGGER_THRESHOLD

public static final int DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_TRIGGER_THRESHOLD

See Also:

Constant Field Values

OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_FILES_TO_MERGE

public static final java.lang.String OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_FILES_TO_MERGE

See Also:

Constant Field Values

DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_FILES_TO_MERGE

public static final int DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_FILES_TO_MERGE

See Also:

Constant Field Values

OAK_INDEXER_PIPELINED_EAGER_MERGE_MIN_FILES_TO_MERGE

public static final java.lang.String OAK_INDEXER_PIPELINED_EAGER_MERGE_MIN_FILES_TO_MERGE

See Also:

Constant Field Values

DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MIN_FILES_TO_MERGE

public static final int DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MIN_FILES_TO_MERGE

See Also:

Constant Field Values

OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_SIZE_TO_MERGE_MB

public static final java.lang.String OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_SIZE_TO_MERGE_MB

See Also:

Constant Field Values

DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_SIZE_TO_MERGE_MB

public static final int DEFAULT_OAK_INDEXER_PIPELINED_EAGER_MERGE_MAX_SIZE_TO_MERGE_MB

See Also:

Constant Field Values

OAK_INDEXER_PIPELINED_EXTERNAL_MERGE_READ_BUFFER_SIZE

public static final java.lang.String OAK_INDEXER_PIPELINED_EXTERNAL_MERGE_READ_BUFFER_SIZE

See Also:

Constant Field Values

DEFAULT_OAK_INDEXER_PIPELINED_EXTERNAL_MERGE_READ_BUFFER_SIZE

public static final int DEFAULT_OAK_INDEXER_PIPELINED_EXTERNAL_MERGE_READ_BUFFER_SIZE

See Also:

Constant Field Values

Constructor Detail

PipelinedMergeSortTask

public PipelinedMergeSortTask(java.nio.file.Path storeDir,
                              PathElementComparator pathComparator,
                              Compression algorithm,
                              java.util.concurrent.BlockingQueue<java.nio.file.Path> sortedFilesQueue,
                              StatisticsProvider statisticsProvider,
                              IndexingReporter reporter)

Method Detail

call

public PipelinedMergeSortTask.Result call()
                                   throws java.lang.Exception

Specified by:

call in interface java.util.concurrent.Callable<PipelinedMergeSortTask.Result>

Throws:

java.lang.Exception

stopEagerMerging

public void stopEagerMerging()

Stops eager merging. After this method is called, eager merging will no longer be performed, even if the conditions for merging are met. This method should be called when the download terminates, to avoid starting new eager merges which would delay the final merge.