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From Peter Keegan <peterlkee...@gmail.com>
Subject Re: IO exception during merge/optimize
Date Tue, 27 Oct 2009 19:08:27 GMT
It's reproducible with a large no. of docs (>1 million), but not with 100K
docs.
I got same error with jvm 1.6.0_16.
The index was optimized after all docs are added. I'll try removing the
optimize.

Peter

On Tue, Oct 27, 2009 at 2:57 PM, Michael McCandless <
lucene@mikemccandless.com> wrote:

> This is odd -- is it reproducible?
>
> Can you narrow it down to a small set of docs that when indexed
> produce a corrupted index?
>
> If you attempt to optimize the index, does it fail?
>
> Mike
>
> On Tue, Oct 27, 2009 at 1:40 PM, Peter Keegan <peterlkeegan@gmail.com>
> wrote:
> > It seems the index is corrupted immediately after the initial build
> (ample
> > disk space was provided):
> >
> > Output from CheckIndex:
> >
> > Opening index @ D:\mnsavs\lresumes1\lresumes1.luc\lresumes1.search.main.2
> >
> > Segments file=segments_3 numSegments=1 version=FORMAT_DIAGNOSTICS [Lucene
> > 2.9]
> >  1 of 1: name=_7 docCount=1077025
> >    compound=false
> >    hasProx=true
> >    numFiles=8
> >    size (MB)=3,201.196
> >    diagnostics = {optimize=true, mergeFactor=7, os.version=5.2,
> os=Windows
> > 2003, mergeDocStores=false, lucene.version=2.9 exported - 2009-10-26
> > 07:58:55, source=merge, os.arch=amd64, java.version=1.6.0_03,
> > java.vendor=Sun Microsystems Inc.}
> >    docStoreOffset=0
> >    docStoreSegment=_0
> >    docStoreIsCompoundFile=false
> >    no deletions
> >    test: open reader.........OK
> >    test: fields..............OK [33 fields]
> >    test: field norms.........OK [33 fields]
> >    test: terms, freq, prox...ERROR [term contents:? docFreq=1 != num docs
> > seen 482 + num docs deleted 0]
> > java.lang.RuntimeException: term contents:? docFreq=1 != num docs seen
> 482 +
> > num docs deleted 0
> >    at
> org.apache.lucene.index.CheckIndex.testTermIndex(CheckIndex.java:675)
> >    at org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:530)
> >    at org.apache.lucene.index.CheckIndex.main(CheckIndex.java:903)
> >    test: stored fields.......OK [3231075 total field count; avg 3 fields
> > per doc]
> >    test: term vectors........OK [0 total vector count; avg 0 term/freq
> > vector fields per doc]
> > FAILED
> >    WARNING: fixIndex() would remove reference to this segment; full
> > exception:
> > java.lang.RuntimeException: Term Index test failed
> >    at org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:543)
> >    at org.apache.lucene.index.CheckIndex.main(CheckIndex.java:903)
> >
> > WARNING: 1 broken segments (containing 1077025 documents) detected
> > WARNING: would write new segments file, and 1077025 documents would be
> lost,
> > if -fix were specified
> >
> > Searching on this index seems to be fine, though.
> >
> > Here is the IndexWriter log from the build:
> >
> > IFD [Indexer]: setInfoStream
> >
> deletionPolicy=org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy@2a9cfec1
> > IW 0 [Indexer]: setInfoStream:
> > dir=org.apache.lucene.store.SimpleFSDirectory@D
> :\mnsavs\lresumes1\lresumes1.luc\lresumes1.update.main.2
> > autoCommit=false
> >
> mergePolicy=org.apache.lucene.index.LogByteSizeMergePolicy@291946c2mergeScheduler
> =org.apache.lucene.index.ConcurrentMergeScheduler@3a747fa2ramBufferSizeMB
> =16.0
> > maxBufferedDocs=-1 maxBuffereDeleteTerms=-1
> > maxFieldLength=2147483647 index=
> > IW 0 [Indexer]: setRAMBufferSizeMB 910.25
> > IW 0 [Indexer]: setMaxBufferedDocs 1000000
> > IW 0 [Indexer]: flush at getReader
> > IW 0 [Indexer]:   flush: segment=null docStoreSegment=null
> docStoreOffset=0
> > flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
> > numBufDelTerms=0
> > IW 0 [Indexer]:   index before flush
> > IW 0 [UpdWriterBuild]: DW:   RAM: now flush @ usedMB=886.463
> allocMB=886.463
> > deletesMB=23.803 triggerMB=910.25
> > IW 0 [UpdWriterBuild]:   flush: segment=_0 docStoreSegment=_0
> > docStoreOffset=0 flushDocs=true flushDeletes=false flushDocStores=false
> > numDocs=171638 numBufDelTerms=171638
> > IW 0 [UpdWriterBuild]:   index before flush
> > IW 0 [UpdWriterBuild]: DW: flush postings as segment _0 numDocs=171638
> > IW 0 [UpdWriterBuild]: DW:   oldRAMSize=929523712
> newFlushedSize=573198529
> > docs/MB=313.985 new/old=61.666%
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [1 segments ; isCommit
> =
> > false]
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [1 segments ; isCommit
> =
> > false]
> > IW 0 [UpdWriterBuild]: LMP: findMerges: 1 segments
> > IW 0 [UpdWriterBuild]: LMP:   level 8.008305 to 8.758305: 1 segments
> > IW 0 [UpdWriterBuild]: CMS: now merge
> > IW 0 [UpdWriterBuild]: CMS:   index: _0:C171638->_0
> > IW 0 [UpdWriterBuild]: CMS:   no more merges pending; now return
> > IW 0 [UpdWriterBuild]: DW:   RAM: now flush @ usedMB=857.977
> allocMB=901.32
> > deletesMB=52.274 triggerMB=910.25
> > IW 0 [UpdWriterBuild]:   flush: segment=_1 docStoreSegment=_0
> > docStoreOffset=171638 flushDocs=true flushDeletes=false
> flushDocStores=false
> > numDocs=204995 numBufDelTerms=204995
> > IW 0 [UpdWriterBuild]:   index before flush _0:C171638->_0
> > IW 0 [UpdWriterBuild]: DW: flush postings as segment _1 numDocs=204995
> > IW 0 [UpdWriterBuild]: DW:   oldRAMSize=899653632
> newFlushedSize=544283851
> > docs/MB=394.928 new/old=60.499%
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [2 segments ; isCommit
> =
> > false]
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [2 segments ; isCommit
> =
> > false]
> > IW 0 [UpdWriterBuild]: LMP: findMerges: 2 segments
> > IW 0 [UpdWriterBuild]: LMP:   level 8.008305 to 8.758305: 2 segments
> > IW 0 [UpdWriterBuild]: CMS: now merge
> > IW 0 [UpdWriterBuild]: CMS:   index: _0:C171638->_0 _1:C204995->_0
> > IW 0 [UpdWriterBuild]: CMS:   no more merges pending; now return
> > IW 0 [UpdWriterBuild]: DW:   RAM: now balance allocations: usedMB=834.645
> vs
> > trigger=910.25 allocMB=901.32 deletesMB=75.627 vs trigger=955.762
> > byteBlockFree=35.938 charBlockFree=8.938
> > IW 0 [UpdWriterBuild]: DW:     nothing to free
> > IW 0 [UpdWriterBuild]: DW:     after free: freedMB=66.613 usedMB=910.272
> > allocMB=834.707
> > IW 0 [UpdWriterBuild]:   flush: segment=_2 docStoreSegment=_0
> > docStoreOffset=376633 flushDocs=true flushDeletes=false
> flushDocStores=false
> > numDocs=168236 numBufDelTerms=168236
> > IW 0 [UpdWriterBuild]:   index before flush _0:C171638->_0 _1:C204995->_0
> > IW 0 [UpdWriterBuild]: DW: flush postings as segment _2 numDocs=168236
> > IW 0 [UpdWriterBuild]: DW:   oldRAMSize=875188224
> newFlushedSize=530720464
> > docs/MB=332.394 new/old=60.641%
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [3 segments ; isCommit
> =
> > false]
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [3 segments ; isCommit
> =
> > false]
> > IW 0 [UpdWriterBuild]: LMP: findMerges: 3 segments
> > IW 0 [UpdWriterBuild]: LMP:   level 8.008305 to 8.758305: 3 segments
> > IW 0 [UpdWriterBuild]: CMS: now merge
> > IW 0 [UpdWriterBuild]: CMS:   index: _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0
> > IW 0 [UpdWriterBuild]: CMS:   no more merges pending; now return
> > IW 0 [UpdWriterBuild]: DW:   RAM: now flush @ usedMB=814.282
> allocMB=835.832
> > deletesMB=95.997 triggerMB=910.25
> > IW 0 [UpdWriterBuild]:   flush: segment=_3 docStoreSegment=_0
> > docStoreOffset=544869 flushDocs=true flushDeletes=false
> flushDocStores=false
> > numDocs=146894 numBufDelTerms=146894
> > IW 0 [UpdWriterBuild]:   index before flush _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0
> > IW 0 [UpdWriterBuild]: DW: flush postings as segment _3 numDocs=146894
> > IW 0 [UpdWriterBuild]: DW:   oldRAMSize=853836800
> newFlushedSize=522388771
> > docs/MB=294.856 new/old=61.181%
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [4 segments ; isCommit
> =
> > false]
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [4 segments ; isCommit
> =
> > false]
> > IW 0 [UpdWriterBuild]: LMP: findMerges: 4 segments
> > IW 0 [UpdWriterBuild]: LMP:   level 8.008305 to 8.758305: 4 segments
> > IW 0 [UpdWriterBuild]: CMS: now merge
> > IW 0 [UpdWriterBuild]: CMS:   index: _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0
> > IW 0 [UpdWriterBuild]: CMS:   no more merges pending; now return
> > IW 0 [UpdWriterBuild]: DW:   RAM: now flush @ usedMB=791.724
> allocMB=835.832
> > deletesMB=118.535 triggerMB=910.25
> > IW 0 [UpdWriterBuild]:   flush: segment=_4 docStoreSegment=_0
> > docStoreOffset=691763 flushDocs=true flushDeletes=false
> flushDocStores=false
> > numDocs=162034 numBufDelTerms=162034
> > IW 0 [UpdWriterBuild]:   index before flush _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0
> > IW 0 [UpdWriterBuild]: DW: flush postings as segment _4 numDocs=162034
> > IW 0 [UpdWriterBuild]: DW:   oldRAMSize=830182400
> newFlushedSize=498741034
> > docs/MB=340.668 new/old=60.076%
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [5 segments ; isCommit
> =
> > false]
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [5 segments ; isCommit
> =
> > false]
> > IW 0 [UpdWriterBuild]: LMP: findMerges: 5 segments
> > IW 0 [UpdWriterBuild]: LMP:   level 8.008305 to 8.758305: 5 segments
> > IW 0 [UpdWriterBuild]: CMS: now merge
> > IW 0 [UpdWriterBuild]: CMS:   index: _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0
> > IW 0 [UpdWriterBuild]: CMS:   no more merges pending; now return
> > IW 0 [UpdWriterBuild]: DW:   RAM: now balance allocations: usedMB=771.396
> vs
> > trigger=910.25 allocMB=835.832 deletesMB=138.875 vs trigger=955.762
> > byteBlockFree=39.688 charBlockFree=7.188
> > IW 0 [UpdWriterBuild]: DW:     nothing to free
> > IW 0 [UpdWriterBuild]: DW:     after free: freedMB=64.374 usedMB=910.271
> > allocMB=771.458
> > IW 0 [UpdWriterBuild]:   flush: segment=_5 docStoreSegment=_0
> > docStoreOffset=853797 flushDocs=true flushDeletes=false
> flushDocStores=false
> > numDocs=146250 numBufDelTerms=146250
> > IW 0 [UpdWriterBuild]:   index before flush _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0
> > IW 0 [UpdWriterBuild]: DW: flush postings as segment _5 numDocs=146250
> > IW 0 [UpdWriterBuild]: DW:   oldRAMSize=808866816
> newFlushedSize=485212402
> > docs/MB=316.056 new/old=59.987%
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [6 segments ; isCommit
> =
> > false]
> > IFD [UpdWriterBuild]: now checkpoint "segments_1" [6 segments ; isCommit
> =
> > false]
> > IW 0 [UpdWriterBuild]: LMP: findMerges: 6 segments
> > IW 0 [UpdWriterBuild]: LMP:   level 8.008305 to 8.758305: 6 segments
> > IW 0 [UpdWriterBuild]: CMS: now merge
> > IW 0 [UpdWriterBuild]: CMS:   index: _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0
> > IW 0 [UpdWriterBuild]: CMS:   no more merges pending; now return
> > IW 0 [Indexer]: commit: start
> > IW 0 [Indexer]: commit: now prepare
> > IW 0 [Indexer]: prepareCommit: flush
> > IW 0 [Indexer]:   flush: segment=_6 docStoreSegment=_0
> > docStoreOffset=1000047 flushDocs=true flushDeletes=true
> flushDocStores=true
> > numDocs=76978 numBufDelTerms=76978
> > IW 0 [Indexer]:   index before flush _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0
> > IW 0 [Indexer]:   flush shared docStore segment _0
> > IW 0 [Indexer]: DW: closeDocStore: 2 files to flush to segment _0
> > numDocs=1077025
> > IW 0 [Indexer]: DW: flush postings as segment _6 numDocs=76978
> > IW 0 [Indexer]: DW:   oldRAMSize=486968320 newFlushedSize=273168136
> > docs/MB=295.486 new/old=56.096%
> > IFD [Indexer]: now checkpoint "segments_1" [7 segments ; isCommit =
> false]
> > IW 0 [Indexer]: DW: apply 1077025 buffered deleted terms and 0 deleted
> > docIDs and 0 deleted queries on 7 segments.
> > IFD [Indexer]: now checkpoint "segments_1" [7 segments ; isCommit =
> false]
> > IW 0 [Indexer]: LMP: findMerges: 7 segments
> > IW 0 [Indexer]: LMP:   level 8.008305 to 8.758305: 7 segments
> > IW 0 [Indexer]: CMS: now merge
> > IW 0 [Indexer]: CMS:   index: _0:C171638->_0 _1:C204995->_0
> _2:C168236->_0
> > _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > IW 0 [Indexer]: CMS:   no more merges pending; now return
> > IW 0 [Indexer]: startCommit(): start sizeInBytes=0
> > IW 0 [Indexer]: startCommit index=_0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > changeCount=21
> > IW 0 [Indexer]: now sync _0.tis
> > IW 0 [Indexer]: now sync _5.prx
> > IW 0 [Indexer]: now sync _3.frq
> > IW 0 [Indexer]: now sync _3.tii
> > IW 0 [Indexer]: now sync _1.frq
> > IW 0 [Indexer]: now sync _6.frq
> > IW 0 [Indexer]: now sync _4.prx
> > IW 0 [Indexer]: now sync _4.fnm
> > IW 0 [Indexer]: now sync _2.tii
> > IW 0 [Indexer]: now sync _3.fnm
> > IW 0 [Indexer]: now sync _1.fnm
> > IW 0 [Indexer]: now sync _6.tis
> > IW 0 [Indexer]: now sync _4.frq
> > IW 0 [Indexer]: now sync _5.nrm
> > IW 0 [Indexer]: now sync _5.tis
> > IW 0 [Indexer]: now sync _1.tii
> > IW 0 [Indexer]: now sync _4.tis
> > IW 0 [Indexer]: now sync _0.prx
> > IW 0 [Indexer]: now sync _3.nrm
> > IW 0 [Indexer]: now sync _4.tii
> > IW 0 [Indexer]: now sync _0.nrm
> > IW 0 [Indexer]: now sync _5.fnm
> > IW 0 [Indexer]: now sync _1.tis
> > IW 0 [Indexer]: now sync _0.fnm
> > IW 0 [Indexer]: now sync _2.prx
> > IW 0 [Indexer]: now sync _6.tii
> > IW 0 [Indexer]: now sync _4.nrm
> > IW 0 [Indexer]: now sync _2.frq
> > IW 0 [Indexer]: now sync _5.frq
> > IW 0 [Indexer]: now sync _3.prx
> > IW 0 [Indexer]: now sync _5.tii
> > IW 0 [Indexer]: now sync _2.fnm
> > IW 0 [Indexer]: now sync _1.prx
> > IW 0 [Indexer]: now sync _2.tis
> > IW 0 [Indexer]: now sync _0.tii
> > IW 0 [Indexer]: now sync _6.prx
> > IW 0 [Indexer]: now sync _0.frq
> > IW 0 [Indexer]: now sync _6.fnm
> > IW 0 [Indexer]: now sync _0.fdx
> > IW 0 [Indexer]: now sync _6.nrm
> > IW 0 [Indexer]: now sync _0.fdt
> > IW 0 [Indexer]: now sync _1.nrm
> > IW 0 [Indexer]: now sync _2.nrm
> > IW 0 [Indexer]: now sync _3.tis
> > IW 0 [Indexer]: done all syncs
> > IW 0 [Indexer]: commit: pendingCommit != null
> > IW 0 [Indexer]: commit: wrote segments file "segments_2"
> > IFD [Indexer]: now checkpoint "segments_2" [7 segments ; isCommit = true]
> > IFD [Indexer]: deleteCommits: now decRef commit "segments_1"
> > IFD [Indexer]: delete "segments_1"
> > IW 0 [Indexer]: commit: done
> > IW 0 [Indexer]: optimize: index now _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > IW 0 [Indexer]:   flush: segment=null docStoreSegment=_6 docStoreOffset=0
> > flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
> > numBufDelTerms=0
> > IW 0 [Indexer]:   index before flush _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > IW 0 [Indexer]: add merge to pendingMerges: _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > [optimize] [total 1 pending]
> > IW 0 [Indexer]: CMS: now merge
> > IW 0 [Indexer]: CMS:   index: _0:C171638->_0 _1:C204995->_0
> _2:C168236->_0
> > _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > IW 0 [Indexer]: CMS:   consider merge _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > into _7 [optimize]
> > IW 0 [Indexer]: CMS:     launch new thread [Lucene Merge Thread #0]
> > IW 0 [Indexer]: CMS:   no more merges pending; now return
> > IW 0 [Lucene Merge Thread #0]: CMS:   merge thread: start
> > IW 0 [Lucene Merge Thread #0]: now merge
> >  merge=_0:C171638->_0 _1:C204995->_0 _2:C168236->_0 _3:C146894->_0
> > _4:C162034->_0 _5:C146250->_0 _6:C76978->_0 into _7 [optimize]
> >  merge=org.apache.lucene.index.MergePolicy$OneMerge@78688954
> >  index=_0:C171638->_0 _1:C204995->_0 _2:C168236->_0 _3:C146894->_0
> > _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > IW 0 [Lucene Merge Thread #0]: merging _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > into _7 [optimize]
> > IW 0 [Lucene Merge Thread #0]: merge: total 1077025 docs
> > IW 0 [Lucene Merge Thread #0]: commitMerge: _0:C171638->_0 _1:C204995->_0
> > _2:C168236->_0 _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > into _7 [optimize] index=_0:C171638->_0 _1:C204995->_0 _2:C168236->_0
> > _3:C146894->_0 _4:C162034->_0 _5:C146250->_0 _6:C76978->_0
> > IW 0 [Lucene Merge Thread #0]: commitMergeDeletes _0:C171638->_0
> > _1:C204995->_0 _2:C168236->_0 _3:C146894->_0 _4:C162034->_0
> _5:C146250->_0
> > _6:C76978->_0 into _7 [optimize]
> > IFD [Lucene Merge Thread #0]: now checkpoint "segments_2" [1 segments ;
> > isCommit = false]
> > IW 0 [Lucene Merge Thread #0]: CMS:   merge thread: done
> > IW 0 [Indexer]: now flush at close
> > IW 0 [Indexer]:   flush: segment=null docStoreSegment=_6 docStoreOffset=0
> > flushDocs=false flushDeletes=true flushDocStores=true numDocs=0
> > numBufDelTerms=0
> > IW 0 [Indexer]:   index before flush _7:C1077025->_0
> > IW 0 [Indexer]:   flush shared docStore segment _6
> > IW 0 [Indexer]: DW: closeDocStore: 0 files to flush to segment _6
> numDocs=0
> > IW 0 [Indexer]: CMS: now merge
> > IW 0 [Indexer]: CMS:   index: _7:C1077025->_0
> > IW 0 [Indexer]: CMS:   no more merges pending; now return
> > IW 0 [Indexer]: now call final commit()
> > IW 0 [Indexer]: startCommit(): start sizeInBytes=0
> > IW 0 [Indexer]: startCommit index=_7:C1077025->_0 changeCount=23
> > IW 0 [Indexer]: now sync _7.prx
> > IW 0 [Indexer]: now sync _7.fnm
> > IW 0 [Indexer]: now sync _7.tis
> > IW 0 [Indexer]: now sync _7.nrm
> > IW 0 [Indexer]: now sync _7.tii
> > IW 0 [Indexer]: now sync _7.frq
> > IW 0 [Indexer]: done all syncs
> > IW 0 [Indexer]: commit: pendingCommit != null
> > IW 0 [Indexer]: commit: wrote segments file "segments_3"
> > IFD [Indexer]: now checkpoint "segments_3" [1 segments ; isCommit = true]
> > IFD [Indexer]: deleteCommits: now decRef commit "segments_2"
> > IFD [Indexer]: delete "_0.tis"
> > IFD [Indexer]: delete "_5.prx"
> > IFD [Indexer]: delete "_3.tii"
> > IFD [Indexer]: delete "_3.frq"
> > IFD [Indexer]: delete "_1.frq"
> > IFD [Indexer]: delete "_6.frq"
> > IFD [Indexer]: delete "_4.prx"
> > IFD [Indexer]: delete "_4.fnm"
> > IFD [Indexer]: delete "_2.tii"
> > IFD [Indexer]: delete "_3.fnm"
> > IFD [Indexer]: delete "_1.fnm"
> > IFD [Indexer]: delete "_6.tis"
> > IFD [Indexer]: delete "_4.frq"
> > IFD [Indexer]: delete "_5.nrm"
> > IFD [Indexer]: delete "_5.tis"
> > IFD [Indexer]: delete "_1.tii"
> > IFD [Indexer]: delete "_4.tis"
> > IFD [Indexer]: delete "_0.prx"
> > IFD [Indexer]: delete "_3.nrm"
> > IFD [Indexer]: delete "_4.tii"
> > IFD [Indexer]: delete "_0.nrm"
> > IFD [Indexer]: delete "_5.fnm"
> > IFD [Indexer]: delete "_1.tis"
> > IFD [Indexer]: delete "_0.fnm"
> > IFD [Indexer]: delete "_2.prx"
> > IFD [Indexer]: delete "_6.tii"
> > IFD [Indexer]: delete "_4.nrm"
> > IFD [Indexer]: delete "_2.frq"
> > IFD [Indexer]: delete "_5.frq"
> > IFD [Indexer]: delete "_3.prx"
> > IFD [Indexer]: delete "_5.tii"
> > IFD [Indexer]: delete "_2.fnm"
> > IFD [Indexer]: delete "_1.prx"
> > IFD [Indexer]: delete "_2.tis"
> > IFD [Indexer]: delete "_0.tii"
> > IFD [Indexer]: delete "_6.prx"
> > IFD [Indexer]: delete "_0.frq"
> > IFD [Indexer]: delete "segments_2"
> > IFD [Indexer]: delete "_6.fnm"
> > IFD [Indexer]: delete "_6.nrm"
> > IFD [Indexer]: delete "_1.nrm"
> > IFD [Indexer]: delete "_2.nrm"
> > IFD [Indexer]: delete "_3.tis"
> > IW 0 [Indexer]: commit: done
> > IW 0 [Indexer]: at close: _7:C1077025->_0
> >
> > I see no errors.
> > Peter
> >
> >
> > On Tue, Oct 27, 2009 at 10:44 AM, Peter Keegan <peterlkeegan@gmail.com
> >wrote:
> >
> >>
> >>
> >> On Tue, Oct 27, 2009 at 10:37 AM, Michael McCandless <
> >> lucene@mikemccandless.com> wrote:
> >>
> >>> OK that exception looks more reasonable, for a disk full event.
> >>>
> >>> But, I can't tell from your followon emails: did this lead to index
> >>> corruption?
> >>>
> >>
> >> Yes, but this may be caused by the application ignoring a Lucene
> exception
> >> somewhere else. I will chase this down.
> >>
> >>>
> >>> Also, I noticed you're using a rather old 1.6.0 JRE (1.6.0_03) -- you
> >>> really should upgrade that to the latest 1.6.0 -- there's at least one
> >>> known problem with Lucene and early 1.6.0 JREs.
> >>>
> >>
> >> Yes, I remember this problem - that's why we stayed at _03
> >> Thanks.
> >>
> >>>
> >>> Mike
> >>>
> >>> On Tue, Oct 27, 2009 at 10:00 AM, Peter Keegan <peterlkeegan@gmail.com
> >
> >>> wrote:
> >>> > After rebuilding the corrupted indexes, the low disk space exception
> is
> >>> now
> >>> > occurring as expected. Sorry for the distraction.
> >>> >
> >>> > fyi, here are the details:
> >>> >
> >>> >  java.io.IOException: There is not enough space on the disk
> >>> >    at java.io.RandomAccessFile.writeBytes(Native Method)
> >>> >    at java.io.RandomAccessFile.write(Unknown Source)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.store.SimpleFSDirectory$SimpleFSIndexOutput.flushBuffer(SimpleFSDirectory.java:192)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.store.BufferedIndexOutput.flushBuffer(BufferedIndexOutput.java:96)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.store.BufferedIndexOutput.flush(BufferedIndexOutput.java:85)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.store.BufferedIndexOutput.close(BufferedIndexOutput.java:109)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.store.SimpleFSDirectory$SimpleFSIndexOutput.close(SimpleFSDirectory.java:199)
> >>> >    at
> org.apache.lucene.index.FieldsWriter.close(FieldsWriter.java:144)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.index.SegmentMerger.mergeFields(SegmentMerger.java:357)
> >>> >    at
> >>> org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:153)
> >>> >    at
> >>> >
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:5011)
> >>> >    at
> org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4596)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.index.IndexWriter.resolveExternalSegments(IndexWriter.java:3786)
> >>> >    at
> >>> >
> >>>
> org.apache.lucene.index.IndexWriter.addIndexesNoOptimize(IndexWriter.java:3695)
> >>> >
> >>> >
> >>> > And the corresponding index info log:
> >>> >
> >>> > IFD [Indexer]: setInfoStream
> >>> >
> >>>
> deletionPolicy=org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy@256ef705
> >>> > IW 1 [Indexer]: setInfoStream:
> >>> > dir=org.apache.lucene.store.SimpleFSDirectory@D
> >>> :\mnsavs\lresumes3\lresumes3.luc\lresumes3.update.main.4
> >>> > autoCommit=false
> >>> >
> >>>
> mergePolicy=org.apache.lucene.index.LogByteSizeMergePolicy@181b7c76mergeScheduler
> >>>
> =org.apache.lucene.index.ConcurrentMergeScheduler@34883357ramBufferSizeMB
> >>> =16.0
> >>> > maxBufferedDocs=-1 maxBuffereDeleteTerms=-1
> >>> > maxFieldLength=2147483647 index=
> >>> > IW 1 [Indexer]: flush at addIndexesNoOptimize
> >>> > IW 1 [Indexer]:   flush: segment=null docStoreSegment=null
> >>> docStoreOffset=0
> >>> > flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
> >>> > numBufDelTerms=0
> >>> > IW 1 [Indexer]:   index before flush
> >>> > IW 1 [Indexer]: now start transaction
> >>> > IW 1 [Indexer]: LMP: findMerges: 2 segments
> >>> > IW 1 [Indexer]: LMP:   level 8.774518 to 9.524518: 1 segments
> >>> > IW 1 [Indexer]: LMP:   level 6.2973914 to 7.0473914: 1 segments
> >>> > IW 1 [Indexer]: CMS: now merge
> >>> > IW 1 [Indexer]: CMS:   index: _7:Cx1075533->_0** _8:Cx2795**
> >>> > IW 1 [Indexer]: CMS:   no more merges pending; now return
> >>> > IW 1 [Indexer]: add merge to pendingMerges: _7:Cx1075533->_0 [total
1
> >>> > pending]
> >>> > IW 1 [Indexer]: now merge
> >>> >  merge=_7:Cx1075533->_0 into _0 [mergeDocStores]
> >>> >  merge=org.apache.lucene.index.MergePolicy$OneMerge@4d480ea
> >>> >  index=_7:Cx1075533->_0** _8:Cx2795**
> >>> > IW 1 [Indexer]: merging _7:Cx1075533->_0 into _0 [mergeDocStores]
> >>> > IW 1 [Indexer]: merge: total 1074388 docs
> >>> > IW 1 [Indexer]: commitMerge: _7:Cx1075533->_0 into _0
> [mergeDocStores]
> >>> > index=_7:Cx1075533->_0** _8:Cx2795**
> >>> > IW 1 [Indexer]: commitMergeDeletes _7:Cx1075533->_0 into _0
> >>> [mergeDocStores]
> >>> > IFD [Indexer]: now checkpoint "segments_1" [2 segments ; isCommit =
> >>> false]
> >>> > IW 1 [Indexer]: LMP: findMerges: 2 segments
> >>> > IW 1 [Indexer]: LMP:   level 8.864886 to 9.614886: 1 segments
> >>> > IW 1 [Indexer]: LMP:   level 6.2973914 to 7.0473914: 1 segments
> >>> > IW 1 [Indexer]: add merge to pendingMerges: _8:Cx2795 [total 1
> pending]
> >>> > IW 1 [Indexer]: now merge
> >>> >  merge=_8:Cx2795 into _1 [mergeDocStores]
> >>> >  merge=org.apache.lucene.index.MergePolicy$OneMerge@606f8b2b
> >>> >  index=_0:C1074388 _8:Cx2795**
> >>> > IW 1 [Indexer]: merging _8:Cx2795 into _1 [mergeDocStores]
> >>> > IW 1 [Indexer]: merge: total 2795 docs
> >>> > IW 1 [Indexer]: handleMergeException: merge=_8:Cx2795 into _1
> >>> > [mergeDocStores] exc=java.io.IOException: There is not enough space
> on
> >>> the
> >>> > disk
> >>> > IW 1 [Indexer]: hit exception during merge
> >>> > IFD [Indexer]: refresh [prefix=_1]: removing newly created
> unreferenced
> >>> file
> >>> > "_1.fdt"
> >>> > IFD [Indexer]: delete "_1.fdt"
> >>> > IFD [Indexer]: refresh [prefix=_1]: removing newly created
> unreferenced
> >>> file
> >>> > "_1.fdx"
> >>> > IFD [Indexer]: delete "_1.fdx"
> >>> > IFD [Indexer]: refresh [prefix=_1]: removing newly created
> unreferenced
> >>> file
> >>> > "_1.fnm"
> >>> > IFD [Indexer]: delete "_1.fnm"
> >>> > IW 1 [Indexer]: now rollback transaction
> >>> > IW 1 [Indexer]: all running merges have aborted
> >>> > IFD [Indexer]: now checkpoint "segments_1" [0 segments ; isCommit =
> >>> false]
> >>> > IFD [Indexer]: delete "_0.nrm"
> >>> > IFD [Indexer]: delete "_0.tis"
> >>> > IFD [Indexer]: delete "_0.fnm"
> >>> > IFD [Indexer]: delete "_0.tii"
> >>> > IFD [Indexer]: delete "_0.frq"
> >>> > IFD [Indexer]: delete "_0.fdx"
> >>> > IFD [Indexer]: delete "_0.prx"
> >>> > IFD [Indexer]: delete "_0.fdt"
> >>> >
> >>> >
> >>> > Peter
> >>> >
> >>> > On Mon, Oct 26, 2009 at 3:59 PM, Peter Keegan <
> peterlkeegan@gmail.com
> >>> >wrote:
> >>> >
> >>> >>
> >>> >>
> >>> >> On Mon, Oct 26, 2009 at 3:00 PM, Michael McCandless <
> >>> >> lucene@mikemccandless.com> wrote:
> >>> >>
> >>> >>> On Mon, Oct 26, 2009 at 2:55 PM, Peter Keegan <
> peterlkeegan@gmail.com
> >>> >
> >>> >>> wrote:
> >>> >>> > On Mon, Oct 26, 2009 at 2:50 PM, Michael McCandless <
> >>> >>> > lucene@mikemccandless.com> wrote:
> >>> >>> >
> >>> >>> >> On Mon, Oct 26, 2009 at 10:44 AM, Peter Keegan <
> >>> peterlkeegan@gmail.com
> >>> >>> >
> >>> >>> >> wrote:
> >>> >>> >> > Even running in console mode, the exception is
difficult to
> >>> >>> interpret.
> >>> >>> >> > Here's an exception that I think occurred during
an add
> document,
> >>> >>> commit
> >>> >>> >> or
> >>> >>> >> > close:
> >>> >>> >> > doc counts differ for segment _g: field Reader
shows 137 but
> >>> >>> segmentInfo
> >>> >>> >> > shows 5777
> >>> >>> >>
> >>> >>> >> That's spooky.  Do you have the full exception for
this one?
>  What
> >>> IO
> >>> >>> >> system are you running on?  (Is it just a local drive
on your
> >>> windows
> >>> >>> >> computer?) It's almost as if the IO system is not
generating an
> >>> >>> >> IOException to Java when disk fills up.
> >>> >>> >>
> >>> >>> >
> >>> >>> > Index and code are all on a local drive. There is no other
> exception
> >>> >>> coming
> >>> >>> > back - just what I reported.
> >>> >>>
> >>> >>> But, you didn't report a traceback for this first one?
> >>> >>>
> >>> >>
> >>> >> Yes, I need to add some more printStackTrace calls.
> >>> >>
> >>> >>
> >>> >>>
> >>> >>> >> > I ensured that the disk space was low before
updating the
> index.
> >>> >>> >>
> >>> >>> >> You mean, to intentionally test the disk-full case?
> >>> >>> >>
> >>> >>> >
> >>> >>> > Yes, that's right.
> >>> >>>
> >>> >>> OK.  Can you turn on IndexWriter's infoStream, get this disk
full /
> >>> >>> corruption to happen again, and post back the resulting output?
>  Make
> >>> >>> sure your index first passes CheckIndex before starting (so
we
> don't
> >>> >>> begin the test w/ any pre-existing index corruption).
> >>> >>>
> >>> >>
> >>> >> Good point about CheckIndex.  I've already found 2 bad ones. I
will
> >>> build
> >>> >> new indexes from scratch. This will take a while.
> >>> >>
> >>> >>
> >>> >>> >> > On another occasion, the exception was:
> >>> >>> >> > background merge hit exception: _0:C1080260 _1:C139
_2:C123
> >>> _3:C107
> >>> >>> >> _4:C126
> >>> >>> >> > _5:C121 _6:C126 _7:C711 _8:C116 into _9 [optimize]
> >>> [mergeDocStores]
> >>> >>> >>
> >>> >>> >> In this case, the SegmentMerger was trying to open
this segment,
> >>> but
> >>> >>> >> on attempting to read the first int from the fdx (fields
index)
> >>> file
> >>> >>> >> for one of the segments, it hit EOF.
> >>> >>> >>
> >>> >>> >> This is also spooky -- this looks like index corruption,
which
> >>> should
> >>> >>> >> never happen on hitting disk full.
> >>> >>> >>
> >>> >>> >
> >>> >>> > That's what I thought, too. Could Lucene be catching the
> IOException
> >>> and
> >>> >>> > turning it into a different exception?
> >>> >>>
> >>> >>> I think that's unlikely, but I guess possible.  We have "disk
full"
> >>> >>> tests in the unit tests, that throw an IOException at different
> times.
> >>> >>>
> >>> >>> What exact windows version are you using?  The local drive
is NTFS?
> >>> >>>
> >>> >>
> >>> >> Windows Server 2003 Enterprise x64 SP2. Local drive is NTFS
> >>> >>
> >>> >>
> >>> >>>
> >>> >>> Mike
> >>> >>>
> >>> >>>
> ---------------------------------------------------------------------
> >>> >>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >>> >>> For additional commands, e-mail: java-user-help@lucene.apache.org
> >>> >>>
> >>> >>>
> >>> >>
> >>> >
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >>> For additional commands, e-mail: java-user-help@lucene.apache.org
> >>>
> >>>
> >>
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>

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