Package org.apache.lucene.index
Class BalancedSegmentMergePolicy
- java.lang.Object
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- org.apache.lucene.index.MergePolicy
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- org.apache.lucene.index.LogMergePolicy
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- org.apache.lucene.index.LogByteSizeMergePolicy
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- org.apache.lucene.index.BalancedSegmentMergePolicy
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- All Implemented Interfaces:
Closeable
,AutoCloseable
@Deprecated public class BalancedSegmentMergePolicy extends org.apache.lucene.index.LogByteSizeMergePolicy
Deprecated.This class is removed in 4.0; useTieredMergePolicy
instead.Merge policy that tries to balance not doing large segment merges with not accumulating too many segments in the index, to provide for better performance in near real-time setting.This is based on code from zoie, described in more detail at http://code.google.com/p/zoie/wiki/ZoieMergePolicy.
WARNING: there is a known bug in this merge policy that causes it to run forever, merging the same single segment over and over. If you use
SerialMergeScheduler
this can cause an index thread to hang forever merging. See LUCENE-4269 for details.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
BalancedSegmentMergePolicy.MergePolicyParams
Deprecated.Specifies configuration parameters for BalancedSegmentMergePolicy.
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Field Summary
Fields Modifier and Type Field Description static int
DEFAULT_NUM_LARGE_SEGMENTS
Deprecated.-
Fields inherited from class org.apache.lucene.index.LogByteSizeMergePolicy
DEFAULT_MAX_MERGE_MB, DEFAULT_MAX_MERGE_MB_FOR_FORCED_MERGE, DEFAULT_MIN_MERGE_MB
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Constructor Summary
Constructors Constructor Description BalancedSegmentMergePolicy()
Deprecated.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description org.apache.lucene.index.MergePolicy.MergeSpecification
findForcedDeletesMerges(org.apache.lucene.index.SegmentInfos infos)
Deprecated.org.apache.lucene.index.MergePolicy.MergeSpecification
findForcedMerges(org.apache.lucene.index.SegmentInfos infos, int maxNumSegments, Map<org.apache.lucene.index.SegmentInfo,Boolean> segmentsToMerge)
Deprecated.org.apache.lucene.index.MergePolicy.MergeSpecification
findMerges(org.apache.lucene.index.SegmentInfos infos)
Deprecated.int
getMaxSmallSegments()
Deprecated.int
getNumLargeSegments()
Deprecated.boolean
getPartialExpunge()
Deprecated.void
setMaxSmallSegments(int maxSmallSegments)
Deprecated.void
setMergeFactor(int mergeFactor)
Deprecated.void
setMergePolicyParams(BalancedSegmentMergePolicy.MergePolicyParams params)
Deprecated.void
setNumLargeSegments(int numLargeSegments)
Deprecated.void
setPartialExpunge(boolean doPartialExpunge)
Deprecated.protected long
size(org.apache.lucene.index.SegmentInfo info)
Deprecated.-
Methods inherited from class org.apache.lucene.index.LogByteSizeMergePolicy
getMaxMergeMB, getMaxMergeMBForForcedMerge, getMaxMergeMBForOptimize, getMinMergeMB, setMaxMergeMB, setMaxMergeMBForForcedMerge, setMaxMergeMBForOptimize, setMinMergeMB
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Methods inherited from class org.apache.lucene.index.LogMergePolicy
close, getCalibrateSizeByDeletes, getMaxMergeDocs, getMergeFactor, getNoCFSRatio, getUseCompoundFile, isMerged, isMerged, message, setCalibrateSizeByDeletes, setMaxMergeDocs, setNoCFSRatio, setUseCompoundFile, sizeBytes, sizeDocs, toString, useCompoundFile, verbose
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Field Detail
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DEFAULT_NUM_LARGE_SEGMENTS
public static final int DEFAULT_NUM_LARGE_SEGMENTS
Deprecated.- See Also:
- Constant Field Values
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Method Detail
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setMergePolicyParams
public void setMergePolicyParams(BalancedSegmentMergePolicy.MergePolicyParams params)
Deprecated.
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size
protected long size(org.apache.lucene.index.SegmentInfo info) throws IOException
Deprecated.- Overrides:
size
in classorg.apache.lucene.index.LogByteSizeMergePolicy
- Throws:
IOException
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setPartialExpunge
public void setPartialExpunge(boolean doPartialExpunge)
Deprecated.
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getPartialExpunge
public boolean getPartialExpunge()
Deprecated.
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setNumLargeSegments
public void setNumLargeSegments(int numLargeSegments)
Deprecated.
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getNumLargeSegments
public int getNumLargeSegments()
Deprecated.
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setMaxSmallSegments
public void setMaxSmallSegments(int maxSmallSegments)
Deprecated.
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getMaxSmallSegments
public int getMaxSmallSegments()
Deprecated.
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setMergeFactor
public void setMergeFactor(int mergeFactor)
Deprecated.- Overrides:
setMergeFactor
in classorg.apache.lucene.index.LogMergePolicy
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findForcedMerges
public org.apache.lucene.index.MergePolicy.MergeSpecification findForcedMerges(org.apache.lucene.index.SegmentInfos infos, int maxNumSegments, Map<org.apache.lucene.index.SegmentInfo,Boolean> segmentsToMerge) throws IOException
Deprecated.- Overrides:
findForcedMerges
in classorg.apache.lucene.index.LogMergePolicy
- Throws:
IOException
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findForcedDeletesMerges
public org.apache.lucene.index.MergePolicy.MergeSpecification findForcedDeletesMerges(org.apache.lucene.index.SegmentInfos infos) throws org.apache.lucene.index.CorruptIndexException, IOException
Deprecated.- Overrides:
findForcedDeletesMerges
in classorg.apache.lucene.index.LogMergePolicy
- Throws:
org.apache.lucene.index.CorruptIndexException
IOException
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findMerges
public org.apache.lucene.index.MergePolicy.MergeSpecification findMerges(org.apache.lucene.index.SegmentInfos infos) throws IOException
Deprecated.- Overrides:
findMerges
in classorg.apache.lucene.index.LogMergePolicy
- Throws:
IOException
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