I'm pretty sure this output occurred when the version number skipped +1.
The line containing '============'. separates the close/open IndexWriter.

IFD [Indexer]: setInfoStream
deletionpolicy=org.apache.lucene.index.keeponlylastcommitdeletionpol...@646f9dd9
IW 9 [Indexer]: setInfoStream:
dir=org.apache.lucene.store.SimpleFSDirectory@<obfuscated
pathname>\lresumes1.search.main.1 autoCommit=false
mergepolicy=org.apache.lucene.index.logbytesizemergepol...@5be44512mergescheduler=org.apache.lucene.index.concurrentmergescheduler@6772cfdframBufferSizeMB=16.0
maxBufferedDocs=-1 maxBuffereDeleteTerms=-1
maxFieldLength=100000 index=_a:C9780 _b:C1204->_b _c:C717->_b _d:C1220->_d
_e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
IW 9 [Indexer]: flush at getReader
IW 9 [Indexer]:   flush: segment=null docStoreSegment=null docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
numBufDelTerms=0
IW 9 [Indexer]:   index before flush _a:C9780 _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
IW 9 [UpdWriterBuild : 9]: DW:   RAM: now flush @ usedMB=15.816
allocMB=15.816 deletesMB=0.203 triggerMB=16
IW 9 [UpdWriterBuild : 9]:   flush: segment=_j docStoreSegment=_j
docStoreOffset=0 flushDocs=true flushDeletes=false flushDocStores=false
numDocs=1456 numBufDelTerms=1456
IW 9 [UpdWriterBuild : 9]:   index before flush _a:C9780 _b:C1204->_b
_c:C717->_b _d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h
_i:C703->_h
IW 9 [UpdWriterBuild : 9]: DW: flush postings as segment _j numDocs=1456
IW 9 [UpdWriterBuild : 9]: DW:   oldRAMSize=16584704 newFlushedSize=4969789
docs/MB=307.202 new/old=29.966%
IFD [UpdWriterBuild : 9]: now checkpoint "segments_b" [10 segments ;
isCommit = false]
IFD [UpdWriterBuild : 9]: now checkpoint "segments_b" [10 segments ;
isCommit = false]
IW 9 [UpdWriterBuild : 9]: LMP: findMerges: 10 segments
IW 9 [UpdWriterBuild : 9]: LMP:   level 6.863048 to 7.613048: 1 segments
IW 9 [UpdWriterBuild : 9]: LMP:   level 6.2247195 to 6.696363: 9 segments
IW 9 [UpdWriterBuild : 9]: CMS: now merge
IW 9 [UpdWriterBuild : 9]: CMS:   index: _a:C9780 _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j
IW 9 [UpdWriterBuild : 9]: CMS:   no more merges pending; now return
IW 9 [Indexer]: prepareCommit: flush
IW 9 [Indexer]:   flush: segment=_k docStoreSegment=_j docStoreOffset=1456
flushDocs=true flushDeletes=true flushDocStores=true numDocs=509
numBufDelTerms=509
IW 9 [Indexer]:   index before flush _a:C9780 _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j
IW 9 [Indexer]:   flush shared docStore segment _j
IW 9 [Indexer]: DW: closeDocStore: 2 files to flush to segment _j
numDocs=1965
IW 9 [Indexer]: DW: flush postings as segment _k numDocs=509
IW 9 [Indexer]: DW:   oldRAMSize=7483392 newFlushedSize=1854970
docs/MB=287.727 new/old=24.788%
IFD [Indexer]: now checkpoint "segments_b" [11 segments ; isCommit = false]
IW 9 [Indexer]: DW: apply 1965 buffered deleted terms and 0 deleted docIDs
and 0 deleted queries on 11 segments.
IFD [Indexer]: now checkpoint "segments_b" [11 segments ; isCommit = false]
IW 9 [Indexer]: LMP: findMerges: 11 segments
IW 9 [Indexer]: LMP:   level 6.863048 to 7.613048: 1 segments
IW 9 [Indexer]: LMP:   level 6.2247195 to 6.696363: 10 segments
IW 9 [Indexer]: LMP:     1 to 11: add this merge
IW 9 [Indexer]: add merge to pendingMerges: _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j _k:C509->_j [total 1 pending]
IW 9 [Indexer]: CMS: now merge
IW 9 [Indexer]: CMS:   index: _a:C9780 _b:C1204->_b _c:C717->_b _d:C1220->_d
_e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h _j:C1456->_j
_k:C509->_j
IW 9 [Indexer]: CMS:   consider merge _b:C1204->_b _c:C717->_b _d:C1220->_d
_e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h _j:C1456->_j
_k:C509->_j into _l [mergeDocStores]
IW 9 [Indexer]: CMS:     launch new thread [Lucene Merge Thread #0]
IW 9 [Indexer]: CMS:   no more merges pending; now return
IW 9 [Indexer]: startCommit(): start sizeInBytes=0
IW 9 [Indexer]: startCommit index=_a:C9780 _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j _k:C509->_j changeCount=7
IW 9 [Lucene Merge Thread #0]: CMS:   merge thread: start
IW 9 [Indexer]: now sync _k.fnm
IW 9 [Lucene Merge Thread #0]: now merge
  merge=_b:C1204->_b _c:C717->_b _d:C1220->_d _e:C778->_d _f:C1173->_f
_g:C858->_f _h:C1291->_h _i:C703->_h _j:C1456->_j _k:C509->_j into _l
[mergeDocStores]
  merge=org.apache.lucene.index.mergepolicy$oneme...@5203ef34
  index=_a:C9780 _b:C1204->_b _c:C717->_b _d:C1220->_d _e:C778->_d
_f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h _j:C1456->_j _k:C509->_j
IW 9 [Lucene Merge Thread #0]: merging _b:C1204->_b _c:C717->_b _d:C1220->_d
_e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h _j:C1456->_j
_k:C509->_j into _l [mergeDocStores]
IW 9 [Indexer]: now sync _k.tii
IW 9 [Indexer]: now sync _k.tis
IW 9 [Lucene Merge Thread #0]: merge: total 9909 docs
IW 9 [Indexer]: now sync _j.tis
IW 9 [Indexer]: now sync _j.tii
IW 9 [Indexer]: now sync _j.fdx
IW 9 [Indexer]: now sync _j.fdt
IW 9 [Indexer]: now sync _k.prx
IW 9 [Indexer]: now sync _k.nrm
IW 9 [Indexer]: now sync _j.nrm
IW 9 [Indexer]: now sync _j.prx
IW 9 [Indexer]: now sync _j.fnm
IW 9 [Indexer]: now sync _k.frq
IW 9 [Indexer]: now sync _j.frq
IW 9 [Indexer]: done all syncs
IW 9 [Indexer]: flush at getReader
IW 9 [Indexer]:   flush: segment=null docStoreSegment=_k docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=true numDocs=0
numBufDelTerms=0
IW 9 [Indexer]:   index before flush _a:C9780 _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j _k:C509->_j
IW 9 [Indexer]:   flush shared docStore segment _k
IW 9 [Indexer]: DW: closeDocStore: 0 files to flush to segment _k numDocs=0
IW 9 [Indexer]: commit: start
IW 9 [Indexer]: commit: already prepared
IW 9 [Indexer]: commit: pendingCommit != null
IW 9 [Indexer]: commit: wrote segments file "segments_c"
IFD [Indexer]: now checkpoint "segments_c" [11 segments ; isCommit = true]
IFD [Indexer]: deleteCommits: now decRef commit "segments_b"
IFD [Indexer]: delete "segments_b"
IW 9 [Indexer]: commit: done
IW 9 [Indexer]: flush at getReader
IW 9 [Indexer]:   flush: segment=null docStoreSegment=null docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
numBufDelTerms=0
IW 9 [Indexer]:   index before flush _a:C9780 _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j _k:C509->_j
IW 9 [Indexer]: now flush at close
IW 9 [Indexer]:   flush: segment=null docStoreSegment=null docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
numBufDelTerms=0
IW 9 [Indexer]:   index before flush _a:C9780 _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j _k:C509->_j
IW 9 [Indexer]: CMS: now merge
IW 9 [Indexer]: CMS:   index: _a:C9780 _b:C1204->_b _c:C717->_b _d:C1220->_d
_e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h _j:C1456->_j
_k:C509->_j
IW 9 [Indexer]: CMS:   no more merges pending; now return
IW 9 [Lucene Merge Thread #0]: commitMerge: _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j _k:C509->_j into _l [mergeDocStores] index=_a:C9780
_b:C1204->_b _c:C717->_b _d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f
_h:C1291->_h _i:C703->_h _j:C1456->_j _k:C509->_j
IW 9 [Lucene Merge Thread #0]: commitMergeDeletes _b:C1204->_b _c:C717->_b
_d:C1220->_d _e:C778->_d _f:C1173->_f _g:C858->_f _h:C1291->_h _i:C703->_h
_j:C1456->_j _k:C509->_j into _l [mergeDocStores]
IFD [Lucene Merge Thread #0]: now checkpoint "segments_c" [2 segments ;
isCommit = false]
IFD [Lucene Merge Thread #0]: now checkpoint "segments_c" [2 segments ;
isCommit = false]
IW 9 [Lucene Merge Thread #0]: CMS:   merge thread: done
IW 9 [Indexer]: now call final commit()
IW 9 [Indexer]: startCommit(): start sizeInBytes=0
IW 9 [Indexer]: startCommit index=_a:C9780 _l:C9909 changeCount=8
IW 9 [Indexer]: now sync _l.nrm
IW 9 [Indexer]: now sync _l.fnm
IW 9 [Indexer]: now sync _l.prx
IW 9 [Indexer]: now sync _l.frq
IW 9 [Indexer]: now sync _l.tis
IW 9 [Indexer]: now sync _l.fdx
IW 9 [Indexer]: now sync _l.fdt
IW 9 [Indexer]: now sync _l.tii
IW 9 [Indexer]: done all syncs
IW 9 [Indexer]: commit: pendingCommit != null
IW 9 [Indexer]: commit: wrote segments file "segments_d"
IFD [Indexer]: now checkpoint "segments_d" [2 segments ; isCommit = true]
IFD [Indexer]: deleteCommits: now decRef commit "segments_c"
IFD [Indexer]: delete "_h.prx"
IFD [Indexer]: delete "_f.tis"
IFD [Indexer]: delete "_g.tis"
IFD [Indexer]: delete "_d.tii"
IFD [Indexer]: delete "_e.frq"
IFD [Indexer]: delete "_k.fnm"
IFD [Indexer]: delete "_c.tii"
IFD [Indexer]: delete "_h.nrm"
IFD [Indexer]: delete "_i.tis"
IFD [Indexer]: delete "_k.tii"
IFD [Indexer]: delete "_h.fdt"
IFD [Indexer]: delete "_c.tis"
IFD [Indexer]: delete "_g.tii"
IFD [Indexer]: delete "_h.fdx"
IFD [Indexer]: delete "_c.nrm"
IFD [Indexer]: delete "_i.tii"
IFD [Indexer]: delete "_d.tis"
IFD [Indexer]: delete "_f.tii"
IFD [Indexer]: delete "_e.fnm"
IFD [Indexer]: delete "_k.tis"
IFD [Indexer]: delete "_d.frq"
IFD [Indexer]: delete "_f.nrm"
IFD [Indexer]: delete "_h.fnm"
IFD [Indexer]: delete "segments_c"
IFD [Indexer]: delete "_c.prx"
IFD [Indexer]: delete "_d.fnm"
IFD [Indexer]: delete "_h.frq"
IFD [Indexer]: delete "_h.tis"
IFD [Indexer]: delete "_f.fdt"
IFD [Indexer]: delete "_j.tis"
IFD [Indexer]: delete "_f.fdx"
IFD [Indexer]: delete "_g.nrm"
IFD [Indexer]: delete "_f.prx"
IFD [Indexer]: delete "_j.tii"
IFD [Indexer]: delete "_h.tii"
IFD [Indexer]: delete "_e.prx"
IFD [Indexer]: delete "_c.frq"
IFD [Indexer]: delete "_i.prx"
IFD [Indexer]: delete "_j.fdx"
IFD [Indexer]: delete "_i.nrm"
IFD [Indexer]: delete "_j.fdt"
IFD [Indexer]: delete "_k.prx"
IFD [Indexer]: delete "_b.nrm"
IFD [Indexer]: delete "_e.tis"
IFD [Indexer]: delete "_e.tii"
IFD [Indexer]: delete "_g.fnm"
IFD [Indexer]: delete "_k.nrm"
IFD [Indexer]: delete "_j.nrm"
IFD [Indexer]: delete "_j.prx"
IFD [Indexer]: delete "_e.nrm"
IFD [Indexer]: delete "_g.prx"
IFD [Indexer]: delete "_b.prx"
IFD [Indexer]: delete "_i.frq"
IFD [Indexer]: delete "_b.tis"
IFD [Indexer]: delete "_d.prx"
IFD [Indexer]: delete "_g.frq"
IFD [Indexer]: delete "_d.fdx"
IFD [Indexer]: delete "_b.tii"
IFD [Indexer]: delete "_b.frq"
IFD [Indexer]: delete "_d.fdt"
IFD [Indexer]: delete "_f.fnm"
IFD [Indexer]: delete "_j.fnm"
IFD [Indexer]: delete "_b.fnm"
IFD [Indexer]: delete "_d.nrm"
IFD [Indexer]: delete "_b.fdt"
IFD [Indexer]: delete "_k.frq"
IFD [Indexer]: delete "_c.fnm"
IFD [Indexer]: delete "_j.frq"
IFD [Indexer]: delete "_i.fnm"
IFD [Indexer]: delete "_f.frq"
IFD [Indexer]: delete "_b.fdx"
IW 9 [Indexer]: commit: done
IW 9 [Indexer]: at close: _a:C9780 _l:C9909

=====================================================

IFD [Indexer]: setInfoStream
deletionpolicy=org.apache.lucene.index.keeponlylastcommitdeletionpol...@68d349c1
IW 10 [Indexer]: setInfoStream:
dir=org.apache.lucene.store.SimpleFSDirectory@<obfuscated
pathname>\lresumes1.search.main.1 autoCommit=false
mergepolicy=org.apache.lucene.index.logbytesizemergepol...@78f53abmergescheduler=org.apache.lucene.index.concurrentmergescheduler@52be036dramBufferSizeMB=16.0
maxBufferedDocs=-1 maxBuffereDeleteTerms=-1
maxFieldLength=100000 index=_a:C9780 _l:C9909
IW 10 [Indexer]: flush at getReader
IW 10 [Indexer]:   flush: segment=null docStoreSegment=null docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
numBufDelTerms=0
IW 10 [Indexer]:   index before flush _a:C9780 _l:C9909
IW 10 [UpdWriterBuild : 10]: DW:   RAM: now flush @ usedMB=15.789
allocMB=15.789 deletesMB=0.212 triggerMB=16
IW 10 [UpdWriterBuild : 10]:   flush: segment=_m docStoreSegment=_m
docStoreOffset=0 flushDocs=true flushDeletes=false flushDocStores=false
numDocs=1526 numBufDelTerms=1526
IW 10 [UpdWriterBuild : 10]:   index before flush _a:C9780 _l:C9909
IW 10 [UpdWriterBuild : 10]: DW: flush postings as segment _m numDocs=1526
IW 10 [UpdWriterBuild : 10]: DW:   oldRAMSize=16556032
newFlushedSize=4788823 docs/MB=334.138 new/old=28.925%
IFD [UpdWriterBuild : 10]: now checkpoint "segments_d" [3 segments ;
isCommit = false]
IFD [UpdWriterBuild : 10]: now checkpoint "segments_d" [3 segments ;
isCommit = false]
IW 10 [UpdWriterBuild : 10]: LMP: findMerges: 3 segments
IW 10 [UpdWriterBuild : 10]: LMP:   level 6.8642592 to 7.6142592: 2 segments
IW 10 [UpdWriterBuild : 10]: LMP:   level 6.2247195 to 6.6802545: 1 segments
IW 10 [UpdWriterBuild : 10]: CMS: now merge
IW 10 [UpdWriterBuild : 10]: CMS:   index: _a:C9780 _l:C9909 _m:C1526->_m
IW 10 [UpdWriterBuild : 10]: CMS:   no more merges pending; now return
IW 10 [Indexer]: prepareCommit: flush
IW 10 [Indexer]:   flush: segment=_n docStoreSegment=_m docStoreOffset=1526
flushDocs=true flushDeletes=true flushDocStores=true numDocs=501
numBufDelTerms=501
IW 10 [Indexer]:   index before flush _a:C9780 _l:C9909 _m:C1526->_m
IW 10 [Indexer]:   flush shared docStore segment _m
IW 10 [Indexer]: DW: closeDocStore: 2 files to flush to segment _m
numDocs=2027
IW 10 [Indexer]: DW: flush postings as segment _n numDocs=501
IW 10 [Indexer]: DW:   oldRAMSize=6927360 newFlushedSize=1659342
docs/MB=316.593 new/old=23.953%
IFD [Indexer]: now checkpoint "segments_d" [4 segments ; isCommit = false]
IW 10 [Indexer]: DW: apply 2027 buffered deleted terms and 0 deleted docIDs
and 0 deleted queries on 4 segments.
IFD [Indexer]: now checkpoint "segments_d" [4 segments ; isCommit = false]
IW 10 [Indexer]: LMP: findMerges: 4 segments
IW 10 [Indexer]: LMP:   level 6.8642592 to 7.6142592: 2 segments
IW 10 [Indexer]: LMP:   level 6.2247195 to 6.6802545: 1 segments
IW 10 [Indexer]: LMP:   level -1.0 to 6.220011: 1 segments
IW 10 [Indexer]: CMS: now merge
IW 10 [Indexer]: CMS:   index: _a:C9780 _l:C9909 _m:C1526->_m _n:C501->_m
IW 10 [Indexer]: CMS:   no more merges pending; now return
IW 10 [Indexer]: startCommit(): start sizeInBytes=0
IW 10 [Indexer]: startCommit index=_a:C9780 _l:C9909 _m:C1526->_m
_n:C501->_m changeCount=6
IW 10 [Indexer]: now sync _m.frq
IW 10 [Indexer]: now sync _m.prx
IW 10 [Indexer]: now sync _n.tis
IW 10 [Indexer]: now sync _m.tis
IW 10 [Indexer]: now sync _n.frq
IW 10 [Indexer]: now sync _n.tii
IW 10 [Indexer]: now sync _m.tii
IW 10 [Indexer]: now sync _m.fnm
IW 10 [Indexer]: now sync _n.fnm
IW 10 [Indexer]: now sync _n.nrm
IW 10 [Indexer]: now sync _n.prx
IW 10 [Indexer]: now sync _m.nrm
IW 10 [Indexer]: now sync _m.fdt
IW 10 [Indexer]: now sync _m.fdx
IW 10 [Indexer]: done all syncs
IW 10 [Indexer]: flush at getReader
IW 10 [Indexer]:   flush: segment=null docStoreSegment=_n docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=true numDocs=0
numBufDelTerms=0
IW 10 [Indexer]:   index before flush _a:C9780 _l:C9909 _m:C1526->_m
_n:C501->_m
IW 10 [Indexer]:   flush shared docStore segment _n
IW 10 [Indexer]: DW: closeDocStore: 0 files to flush to segment _n numDocs=0
IW 10 [Indexer]: commit: start
IW 10 [Indexer]: commit: already prepared
IW 10 [Indexer]: commit: pendingCommit != null
IW 10 [Indexer]: commit: wrote segments file "segments_e"
IFD [Indexer]: now checkpoint "segments_e" [4 segments ; isCommit = true]
IFD [Indexer]: deleteCommits: now decRef commit "segments_d"
IFD [Indexer]: delete "segments_d"
IW 10 [Indexer]: commit: done
IW 10 [Indexer]: flush at getReader
IW 10 [Indexer]:   flush: segment=null docStoreSegment=null docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
numBufDelTerms=0
IW 10 [Indexer]:   index before flush _a:C9780 _l:C9909 _m:C1526->_m
_n:C501->_m
IW 10 [Indexer]: now flush at close
IW 10 [Indexer]:   flush: segment=null docStoreSegment=null docStoreOffset=0
flushDocs=false flushDeletes=true flushDocStores=false numDocs=0
numBufDelTerms=0
IW 10 [Indexer]:   index before flush _a:C9780 _l:C9909 _m:C1526->_m
_n:C501->_m
IW 10 [Indexer]: CMS: now merge
IW 10 [Indexer]: CMS:   index: _a:C9780 _l:C9909 _m:C1526->_m _n:C501->_m
IW 10 [Indexer]: CMS:   no more merges pending; now return
IW 10 [Indexer]: now call final commit()
IW 10 [Indexer]: startCommit(): start sizeInBytes=0
IW 10 [Indexer]:   skip startCommit(): no changes pending
IW 10 [Indexer]: commit: pendingCommit == null; skip
IW 10 [Indexer]: commit: done
IW 10 [Indexer]: at close: _a:C9780 _l:C9909 _m:C1526->_m _n:C501->_m


Peter

On Thu, Feb 25, 2010 at 1:13 PM, Michael McCandless <
luc...@mikemccandless.com> wrote:

> Do you know the place in the infoStream output where you got a reader
> with the wrong (unexplained extra +1) version?  If so, can you post
> the infoStream output up to that point?
>
> Mike
>
> On Thu, Feb 25, 2010 at 10:22 AM, Peter Keegan <peterlkee...@gmail.com>
> wrote:
> > I've reproduced this and I have a bunch of infoStream log files. Since
> the
> > messages have no timestamps, it's hard to tell where the relevant entries
> > are. What should I be looking for?
> >
> > Peter
> >
> > On Mon, Feb 22, 2010 at 3:58 PM, Peter Keegan <peterlkee...@gmail.com
> >wrote:
> >
> >> I'm pretty sure there are flushes and segment merges going on, but as
> you
> >> said, that shouldn't affect the version increment. I'll see what I can
> do to
> >> get infoStream output.
> >>
> >> Thanks,
> >> Peter
> >>
> >>
> >> On Mon, Feb 22, 2010 at 2:30 PM, Michael McCandless <
> >> luc...@mikemccandless.com> wrote:
> >>
> >>> Well I'm at a loss then.  The version should only increment on commit.
> >>>
> >>> Can you make it all happen when infoStream is on, and post back?
> >>>
> >>> Mike
> >>>
> >>> On Mon, Feb 22, 2010 at 12:35 PM, Peter Keegan <peterlkee...@gmail.com
> >
> >>> wrote:
> >>> > Only one writer thread and one writer process.
> >>> > I'm calling IndexWriter(Directory d, Analyzer a, boolean create,
> >>> > MaxFieldLength mfl), which sets autocommit=false.
> >>> >
> >>> > Peter
> >>> >
> >>> > On Mon, Feb 22, 2010 at 12:24 PM, Michael McCandless <
> >>> > luc...@mikemccandless.com> wrote:
> >>> >
> >>> >> That's curious.
> >>> >>
> >>> >> It's only on prepareCommit (or, commit, if you didn't first prepare,
> >>> >> since that will call prepareCommit internally) that this version
> >>> >> should increase.
> >>> >>
> >>> >> Is there only 1 thread doing this?
> >>> >>
> >>> >> Oh, and, are you passing false for autoCommit?
> >>> >>
> >>> >> Mike
> >>> >>
> >>> >> On Mon, Feb 22, 2010 at 11:43 AM, Peter Keegan <
> peterlkee...@gmail.com
> >>> >
> >>> >> wrote:
> >>> >> > Using Lucene 2.9.1, I have the following pseudocode which gets
> >>> repeated
> >>> >> at
> >>> >> > regular intervals:
> >>> >> >
> >>> >> > 1. FSDirectory dir = FSDirectory.open(java.io.File);
> >>> >> > 2. dir.setLockFactory(new SingleInstanceLockFactory());
> >>> >> > 3. IndexWriter writer = new IndexWriter(dir, Analyzer, false,
> >>> >> maxFieldLen)
> >>> >> > 4. writer.getReader().getVersion();
> >>> >> > 5. writer.prepareCommit();
> >>> >> > 6. writer.getReader().getVersion();
> >>> >> > 7. writer.commit();
> >>> >> > 8. writer.close();
> >>> >> >
> >>> >> > I'm using the version number to keep external data in synch with
> the
> >>> >> index.
> >>> >> > Usually, the version number from (6) is 1 greater than from (4)
> and
> >>> the
> >>> >> > version from (4) equals the version from the previous (6). At
> least
> >>> once
> >>> >> a
> >>> >> > day, however, the version from (4) is 1 greater than from the
> >>> previous
> >>> >> (6).
> >>> >> > What would explain this sporadic behavior of version numbers?
> >>> >> >
> >>> >> > Thanks,
> >>> >> > Peter
> >>> >> >
> >>> >>
> >>> >>
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> >>> >>
> >>> >>
> >>> >
> >>>
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> >>>
> >>>
> >>
> >
>
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