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Posted to dev@lucenenet.apache.org by GitBox <gi...@apache.org> on 2020/08/11 07:00:02 UTC
[GitHub] [lucenenet] Shazwazza commented on pull request #325: Fix for LineFileDocs Bottleneck/Performance Improvements
Shazwazza commented on pull request #325:
URL: https://github.com/apache/lucenenet/pull/325#issuecomment-671766858
I've run all tests locally twice with these changes. The first time was fine but the second time yielded one error:
`TestSnapshotDeletionPolicy.TestMultiThreadedSnapshotting`
## Error
```
TestMultiThreadedSnapshotting
Source: TestSnapshotDeletionPolicy.cs line 352
Duration: 16 ms
Message:
System.Exception : Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
Data:
OriginalMessage: System.Exception: Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
---> Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException: Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
at Lucene.Net.Index.DocumentsWriterFlushControl.AddFlushableState(ThreadState perThread) in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\DocumentsWriterFlushControl.cs:line 711
at Lucene.Net.Index.DocumentsWriterFlushControl.MarkForFullFlush() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\DocumentsWriterFlushControl.cs:line 644
at Lucene.Net.Index.DocumentsWriter.FlushAllThreads(IndexWriter indexWriter) in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\DocumentsWriter.cs:line 738
at Lucene.Net.Index.IndexWriter.PrepareCommitInternal() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\IndexWriter.cs:line 3557
at Lucene.Net.Index.IndexWriter.CommitInternal() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\IndexWriter.cs:line 3750
at Lucene.Net.Index.IndexWriter.Commit() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\IndexWriter.cs:line 3709
at Lucene.Net.Index.TestSnapshotDeletionPolicy.ThreadAnonymousInnerClassHelper2.Run() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net.Tests\Index\TestSnapshotDeletionPolicy.cs:line 414
at J2N.Threading.ThreadJob.SafeRun(ThreadStart start)
at J2N.Threading.ThreadJob.<.ctor>b__4_0()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
--- End of inner exception stack trace ---
at Lucene.Net.Index.TestSnapshotDeletionPolicy.ThreadAnonymousInnerClassHelper2.Run() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net.Tests\Index\TestSnapshotDeletionPolicy.cs:line 419
at J2N.Threading.ThreadJob.SafeRun(ThreadStart start)
----> Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException : Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
Stack Trace:
ThreadJob.Join()
TestSnapshotDeletionPolicy.TestMultiThreadedSnapshotting() line 374
--DebugAssertException
DocumentsWriterFlushControl.AddFlushableState(ThreadState perThread) line 711
DocumentsWriterFlushControl.MarkForFullFlush() line 644
DocumentsWriter.FlushAllThreads(IndexWriter indexWriter) line 738
IndexWriter.PrepareCommitInternal() line 3557
IndexWriter.CommitInternal() line 3750
IndexWriter.Commit() line 3709
ThreadAnonymousInnerClassHelper2.Run() line 414
ThreadJob.SafeRun(ThreadStart start)
<.ctor>b__4_0()
ThreadHelper.ThreadStart_Context(Object state)
ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
ThreadHelper.ThreadStart()
```
## Full output
```
Test Name: TestMultiThreadedSnapshotting
Test Outcome: Failed
Result Message:
System.Exception : Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
Data:
OriginalMessage: System.Exception: Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
---> Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException: Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
at Lucene.Net.Index.DocumentsWriterFlushControl.AddFlushableState(ThreadState perThread) in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\DocumentsWriterFlushControl.cs:line 711
at Lucene.Net.Index.DocumentsWriterFlushControl.MarkForFullFlush() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\DocumentsWriterFlushControl.cs:line 644
at Lucene.Net.Index.DocumentsWriter.FlushAllThreads(IndexWriter indexWriter) in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\DocumentsWriter.cs:line 738
at Lucene.Net.Index.IndexWriter.PrepareCommitInternal() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\IndexWriter.cs:line 3557
at Lucene.Net.Index.IndexWriter.CommitInternal() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\IndexWriter.cs:line 3750
at Lucene.Net.Index.IndexWriter.Commit() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net\Index\IndexWriter.cs:line 3709
at Lucene.Net.Index.TestSnapshotDeletionPolicy.ThreadAnonymousInnerClassHelper2.Run() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net.Tests\Index\TestSnapshotDeletionPolicy.cs:line 414
at J2N.Threading.ThreadJob.SafeRun(ThreadStart start)
at J2N.Threading.ThreadJob.<.ctor>b__4_0()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
--- End of inner exception stack trace ---
at Lucene.Net.Index.TestSnapshotDeletionPolicy.ThreadAnonymousInnerClassHelper2.Run() in C:\Users\Shannon\Documents\_Projects\Lucene.Net\Lucenenet.4.x-copy\src\Lucene.Net.Tests\Index\TestSnapshotDeletionPolicy.cs:line 419
at J2N.Threading.ThreadJob.SafeRun(ThreadStart start)
----> Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException : Method Debug.Assert failed with 'DWPT must never be null here since we hold the lock and it holds documents
', and was translated to Microsoft.VisualStudio.TestPlatform.TestHost.DebugAssertException to avoid terminating the process hosting the test.
Result StandardOutput:
Culture: ru-KZ
Time Zone: (UTC+04:00) Astrakhan, Ulyanovsk
Default Codec: CheapBastard (CheapBastardCodec)
Default Similarity: RandomSimilarityProvider(queryNorm=False,coord=crazy): {}
Nightly: False
Weekly: False
Slow: True
Awaits Fix: False
Directory: random
Verbose: True
Random Multiplier: 1
IFD 281 [11.08.2020 16:13:17; NonParallelWorker]: init: current segments file is ""; deletionPolicy=Lucene.Net.Index.SnapshotDeletionPolicy
IFD 281 [11.08.2020 16:13:17; NonParallelWorker]: now checkpoint "" [0 segments ; isCommit = False]
IFD 281 [11.08.2020 16:13:17; NonParallelWorker]: 0 msec to checkpoint
IW 281 [11.08.2020 16:13:17; NonParallelWorker]: init: create=True
IW 281 [11.08.2020 16:13:17; NonParallelWorker]:
dir=MockDirectoryWrapper(RAMDirectory@47038e lockFactory=Lucene.Net.Store.SingleInstanceLockFactory)
index=
version=4.8.0
matchVersion=LUCENE_48
analyzer=MockAnalyzer
ramBufferSizeMB=16
maxBufferedDocs=-1
maxBufferedDeleteTerms=-1
mergedSegmentWarmer=
readerTermsIndexDivisor=3
termIndexInterval=32
delPolicy=SnapshotDeletionPolicy
commit=null
openMode=CREATE_OR_APPEND
similarity=RandomSimilarityProvider
mergeScheduler=ConcurrentMergeScheduler: maxThreadCount=1, maxMergeCount=2, mergeThreadPriority=-1
default WRITE_LOCK_TIMEOUT=1000
writeLockTimeout=1000
codec=CheapBastard
infoStream=ThreadNameFixingPrintStreamInfoStream
mergePolicy=[TieredMergePolicy: maxMergeAtOnce=17, maxMergeAtOnceExplicit=11, maxMergedSegmentMB=27,6845703125, floorSegmentMB=0,9677734375, forceMergeDeletesPctAllowed=28,449725810647813, segmentsPerTier=15, maxCFSSegmentSizeMB=8796093022207,999, noCFSRatio=1
indexerThreadPool=Lucene.Net.Index.ThreadAffinityDocumentsWriterThreadPool
readerPooling=True
perThreadHardLimitMB=1945
useCompoundFile=True
checkIntegrityAtMerge=False
IW 281 [11.08.2020 16:13:17; t0]: commit: start
IW 281 [11.08.2020 16:13:17; t0]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t0]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t0]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t0]: index before flush
DW 281 [11.08.2020 16:13:17; t0]: startFullFlush
DW 281 [11.08.2020 16:13:17; t0]: anyChanges? numDocsInRam=1 deletes=False hasTickets:False pendingChangesInFullFlush: False
DWFC 281 [11.08.2020 16:13:17; t0]: addFlushableState DocumentsWriterPerThread [pendingDeletes=gen=0, segment=_0, aborting=False, numDocsInRAM=1, deleteQueue=DWDQ: [ generation: 0 ]]
DWPT 281 [11.08.2020 16:13:17; t0]: flush postings as segment _0 numDocs=1
DWPT 281 [11.08.2020 16:13:17; t0]: new segment has 0 deleted docs
DWPT 281 [11.08.2020 16:13:17; t0]: new segment has no vectors; no norms; no docValues; no prox; no freqs
DWPT 281 [11.08.2020 16:13:17; t0]: flushedFiles=[_0.fdt, _0.fdx, _0.doc, _0.tim, _0.tip, _0.fnm]
DWPT 281 [11.08.2020 16:13:17; t0]: flushed codec=CheapBastard
DWPT 281 [11.08.2020 16:13:17; t0]: flushed: segment=_0 ramUsed=0 MB newFlushedSize(includes docstores)=0.00033473968505859375 MB docs/MB=2987.3960113960115
IW 281 [11.08.2020 16:13:17; t0]: create compound file _0.cfs
DW 281 [11.08.2020 16:13:17; t0]: publishFlushedSegment seg-private updates=
IW 281 [11.08.2020 16:13:17; t0]: publishFlushedSegment
IW 281 [11.08.2020 16:13:17; t0]: publish sets newSegment delGen=1 seg=_0(4.8):c1
IFD 281 [11.08.2020 16:13:17; t0]: now checkpoint "_0(4.8):c1" [1 segments ; isCommit = False]
IFD 281 [11.08.2020 16:13:17; t0]: 0 msec to checkpoint
IFD 281 [11.08.2020 16:13:17; t0]: delete new file "_0.fdt"
IFD 281 [11.08.2020 16:13:17; t0]: delete "_0.fdt"
IFD 281 [11.08.2020 16:13:17; t0]: delete new file "_0.fdx"
IFD 281 [11.08.2020 16:13:17; t0]: delete "_0.fdx"
IFD 281 [11.08.2020 16:13:17; t0]: delete new file "_0.doc"
IFD 281 [11.08.2020 16:13:17; t0]: delete "_0.doc"
IFD 281 [11.08.2020 16:13:17; t0]: delete new file "_0.tim"
IFD 281 [11.08.2020 16:13:17; t0]: delete "_0.tim"
IW 281 [11.08.2020 16:13:17; t1]: commit: start
IFD 281 [11.08.2020 16:13:17; t0]: delete new file "_0.tip"
IFD 281 [11.08.2020 16:13:17; t0]: delete "_0.tip"
IFD 281 [11.08.2020 16:13:17; t0]: delete new file "_0.fnm"
IFD 281 [11.08.2020 16:13:17; t0]: delete "_0.fnm"
IW 281 [11.08.2020 16:13:17; t0]: apply all deletes during flush
BD 281 [11.08.2020 16:13:17; t0]: applyDeletes: no deletes; skipping
BD 281 [11.08.2020 16:13:17; t0]: prune sis=Lucene.Net.Index.SegmentInfos minGen=1 packetCount=0
DW 281 [11.08.2020 16:13:17; t0]: t0 finishFullFlush success=True
TMP 281 [11.08.2020 16:13:17; t0]: findMerges: 1 segments
TMP 281 [11.08.2020 16:13:17; t0]: seg=_0(4.8):c1 size=0,000 MB [floored]
TMP 281 [11.08.2020 16:13:17; t0]: allowedSegmentCount=1 vs count=1 (eligible count=1) tooBigCount=0
CMS 281 [11.08.2020 16:13:17; t0]: now merge
CMS 281 [11.08.2020 16:13:17; t0]: index: _0(4.8):c1
CMS 281 [11.08.2020 16:13:17; t0]: no more merges pending; now return
IW 281 [11.08.2020 16:13:17; t0]: StartCommit(): start
IW 281 [11.08.2020 16:13:17; t0]: startCommit index=_0(4.8):c1 changeCount=4
IW 281 [11.08.2020 16:13:17; t0]: done all syncs: [_0.cfs, _0.cfe, _0.si]
IW 281 [11.08.2020 16:13:17; t0]: commit: pendingCommit != null
IW 281 [11.08.2020 16:13:17; t0]: commit: wrote segments file "segments_1"
IFD 281 [11.08.2020 16:13:17; t0]: now checkpoint "_0(4.8):c1" [1 segments ; isCommit = True]
IW 281 [11.08.2020 16:13:17; t2]: commit: start
IFD 281 [11.08.2020 16:13:17; t0]: 0 msec to checkpoint
IW 281 [11.08.2020 16:13:17; t0]: commit: done
IW 281 [11.08.2020 16:13:17; t1]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t1]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t1]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t1]: index before flush _0(4.8):c1
DW 281 [11.08.2020 16:13:17; t1]: startFullFlush
DW 281 [11.08.2020 16:13:17; t1]: anyChanges? numDocsInRam=2 deletes=False hasTickets:False pendingChangesInFullFlush: False
DWFC 281 [11.08.2020 16:13:17; t1]: addFlushableState DocumentsWriterPerThread [pendingDeletes=gen=0, segment=_1, aborting=False, numDocsInRAM=2, deleteQueue=DWDQ: [ generation: 1 ]]
DWPT 281 [11.08.2020 16:13:17; t1]: flush postings as segment _1 numDocs=2
IW 281 [11.08.2020 16:13:17; t3]: commit: start
DWPT 281 [11.08.2020 16:13:17; t1]: new segment has 0 deleted docs
DWPT 281 [11.08.2020 16:13:17; t1]: new segment has no vectors; no norms; no docValues; no prox; no freqs
DWPT 281 [11.08.2020 16:13:17; t1]: flushedFiles=[_1.fdt, _1.fdx, _1.doc, _1.tim, _1.tip, _1.fnm]
DWPT 281 [11.08.2020 16:13:17; t1]: flushed codec=CheapBastard
DWPT 281 [11.08.2020 16:13:17; t1]: flushed: segment=_1 ramUsed=0 MB newFlushedSize(includes docstores)=0.00034332275390625 MB docs/MB=5825.422222222222
IW 281 [11.08.2020 16:13:17; t1]: create compound file _1.cfs
IW 281 [11.08.2020 16:13:17; t4]: commit: start
DW 281 [11.08.2020 16:13:17; t1]: publishFlushedSegment seg-private updates=
IW 281 [11.08.2020 16:13:17; t1]: publishFlushedSegment
IW 281 [11.08.2020 16:13:17; t1]: publish sets newSegment delGen=3 seg=_1(4.8):c2
IFD 281 [11.08.2020 16:13:17; t1]: now checkpoint "_0(4.8):c1 _1(4.8):c2" [2 segments ; isCommit = False]
IFD 281 [11.08.2020 16:13:17; t1]: 0 msec to checkpoint
IFD 281 [11.08.2020 16:13:17; t1]: delete new file "_1.fdt"
IW 281 [11.08.2020 16:13:17; t5]: commit: start
IFD 281 [11.08.2020 16:13:17; t1]: delete "_1.fdt"
IFD 281 [11.08.2020 16:13:17; t1]: delete new file "_1.fdx"
IFD 281 [11.08.2020 16:13:17; t1]: delete "_1.fdx"
IFD 281 [11.08.2020 16:13:17; t1]: delete new file "_1.doc"
IFD 281 [11.08.2020 16:13:17; t1]: delete "_1.doc"
IFD 281 [11.08.2020 16:13:17; t1]: delete new file "_1.tim"
IFD 281 [11.08.2020 16:13:17; t1]: delete "_1.tim"
IFD 281 [11.08.2020 16:13:17; t1]: delete new file "_1.tip"
IFD 281 [11.08.2020 16:13:17; t1]: delete "_1.tip"
IFD 281 [11.08.2020 16:13:17; t1]: delete new file "_1.fnm"
IFD 281 [11.08.2020 16:13:17; t1]: delete "_1.fnm"
IW 281 [11.08.2020 16:13:17; t1]: apply all deletes during flush
BD 281 [11.08.2020 16:13:17; t1]: applyDeletes: no deletes; skipping
BD 281 [11.08.2020 16:13:17; t1]: prune sis=Lucene.Net.Index.SegmentInfos minGen=1 packetCount=0
DW 281 [11.08.2020 16:13:17; t1]: t1 finishFullFlush success=True
TMP 281 [11.08.2020 16:13:17; t1]: findMerges: 2 segments
TMP 281 [11.08.2020 16:13:17; t1]: seg=_1(4.8):c2 size=0,000 MB [floored]
TMP 281 [11.08.2020 16:13:17; t1]: seg=_0(4.8):c1 size=0,000 MB [floored]
TMP 281 [11.08.2020 16:13:17; t1]: allowedSegmentCount=1 vs count=2 (eligible count=2) tooBigCount=0
CMS 281 [11.08.2020 16:13:17; t1]: now merge
CMS 281 [11.08.2020 16:13:17; t1]: index: _0(4.8):c1 _1(4.8):c2
CMS 281 [11.08.2020 16:13:17; t1]: no more merges pending; now return
IW 281 [11.08.2020 16:13:17; t1]: StartCommit(): start
IW 281 [11.08.2020 16:13:17; t1]: startCommit index=_0(4.8):c1 _1(4.8):c2 changeCount=6
IW 281 [11.08.2020 16:13:17; t1]: done all syncs: [_0.cfs, _0.cfe, _0.si, _1.cfs, _1.cfe, _1.si]
IW 281 [11.08.2020 16:13:17; t1]: commit: pendingCommit != null
IW 281 [11.08.2020 16:13:17; t6]: commit: start
IW 281 [11.08.2020 16:13:17; t1]: commit: wrote segments file "segments_2"
IFD 281 [11.08.2020 16:13:17; t1]: now checkpoint "_0(4.8):c1 _1(4.8):c2" [2 segments ; isCommit = True]
IFD 281 [11.08.2020 16:13:17; t1]: 0 msec to checkpoint
IW 281 [11.08.2020 16:13:17; t1]: commit: done
IW 281 [11.08.2020 16:13:17; t2]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t2]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t2]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t2]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t2]: startFullFlush
DW 281 [11.08.2020 16:13:17; t2]: anyChanges? numDocsInRam=4 deletes=False hasTickets:False pendingChangesInFullFlush: False
DWFC 281 [11.08.2020 16:13:17; t2]: addFlushableState DocumentsWriterPerThread [pendingDeletes=gen=0, segment=_2, aborting=False, numDocsInRAM=4, deleteQueue=DWDQ: [ generation: 2 ]]
IW 281 [11.08.2020 16:13:17; t2]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t2]: t2 finishFullFlush success=False
DWFC 281 [11.08.2020 16:13:17; t7]: addFlushableState DocumentsWriterPerThread [pendingDeletes=gen=0, segment=_2, aborting=False, numDocsInRAM=4, deleteQueue=DWDQ: [ generation: 2 ]]
IW 281 [11.08.2020 16:13:17; t7]: commit: start
IW 281 [11.08.2020 16:13:17; t9]: commit: start
IW 281 [11.08.2020 16:13:17; t8]: commit: start
IW 281 [11.08.2020 16:13:17; t3]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t3]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t3]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t3]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t3]: startFullFlush
DW 281 [11.08.2020 16:13:17; t3]: anyChanges? numDocsInRam=7 deletes=False hasTickets:False pendingChangesInFullFlush: False
IW 281 [11.08.2020 16:13:17; t3]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t3]: t3 finishFullFlush success=False
IW 281 [11.08.2020 16:13:17; t4]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t4]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t4]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t4]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t4]: startFullFlush
DW 281 [11.08.2020 16:13:17; t4]: anyChanges? numDocsInRam=7 deletes=False hasTickets:False pendingChangesInFullFlush: False
IW 281 [11.08.2020 16:13:17; t4]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t4]: t4 finishFullFlush success=False
IW 281 [11.08.2020 16:13:17; t5]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t5]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t5]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t5]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t5]: startFullFlush
DW 281 [11.08.2020 16:13:17; t5]: anyChanges? numDocsInRam=7 deletes=False hasTickets:False pendingChangesInFullFlush: False
IW 281 [11.08.2020 16:13:17; t5]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t5]: t5 finishFullFlush success=False
IW 281 [11.08.2020 16:13:17; t6]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t6]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t6]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t6]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t6]: startFullFlush
DW 281 [11.08.2020 16:13:17; t6]: anyChanges? numDocsInRam=7 deletes=False hasTickets:False pendingChangesInFullFlush: False
IW 281 [11.08.2020 16:13:17; t6]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t6]: t6 finishFullFlush success=False
IW 281 [11.08.2020 16:13:17; t9]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t9]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t9]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t9]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t9]: startFullFlush
DW 281 [11.08.2020 16:13:17; t9]: anyChanges? numDocsInRam=7 deletes=False hasTickets:False pendingChangesInFullFlush: False
IW 281 [11.08.2020 16:13:17; t9]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t9]: t9 finishFullFlush success=False
IW 281 [11.08.2020 16:13:17; t8]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t8]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t8]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t8]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t8]: startFullFlush
DW 281 [11.08.2020 16:13:17; t8]: anyChanges? numDocsInRam=7 deletes=False hasTickets:False pendingChangesInFullFlush: False
IW 281 [11.08.2020 16:13:17; t8]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t8]: t8 finishFullFlush success=False
IW 281 [11.08.2020 16:13:17; t7]: commit: enter lock
IW 281 [11.08.2020 16:13:17; t7]: commit: now prepare
IW 281 [11.08.2020 16:13:17; t7]: prepareCommit: flush
IW 281 [11.08.2020 16:13:17; t7]: index before flush _0(4.8):c1 _1(4.8):c2
DW 281 [11.08.2020 16:13:17; t7]: startFullFlush
DW 281 [11.08.2020 16:13:17; t7]: anyChanges? numDocsInRam=7 deletes=False hasTickets:False pendingChangesInFullFlush: False
IW 281 [11.08.2020 16:13:17; t7]: hit exception during prepareCommit
DW 281 [11.08.2020 16:13:17; t7]: t7 finishFullFlush success=False
```
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