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https://issues.apache.org/jira/browse/LUCENE-8090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Simon Willnauer resolved LUCENE-8090.
-------------------------------------
Resolution: Fixed
fixed
> IndexWriter#flushNextBuffer can cause NPE
> -----------------------------------------
>
> Key: LUCENE-8090
> URL: https://issues.apache.org/jira/browse/LUCENE-8090
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: master (8.0), 7.2, 7.3
> Reporter: Simon Willnauer
> Assignee: Simon Willnauer
> Priority: Blocker
> Fix For: master (8.0), 7.2, 7.3
>
> Attachments: LUCENE-8090.patch
>
>
> There is a missing synchronized statment in DocumentsWriterFlushControl
> causing failures like this:
> {code}
> 04:07:06 [junit4] 2> NOTE: reproduce with: ant test
> -Dtestcase=TestIndexWriterDelete -Dtests.method=testDeleteAllNoDeadLock
> -Dtests.seed=D43A2A18EB61840A -Dtests.slow=true -Dtests.locale=sv-SE
> -Dtests.timezone=Pacific/Kosrae -Dtests.asserts=true
> -Dtests.file.encoding=ISO-8859-1
> 04:07:06 [junit4] ERROR 0.21s J1 |
> TestIndexWriterDelete.testDeleteAllNoDeadLock <<<
> 04:07:06 [junit4] > Throwable #1:
> com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an
> uncaught exception in thread: Thread[id=516, name=Thread-413, state=RUNNABLE,
> group=TGRP-TestIndexWriterDelete]
> 04:07:06 [junit4] > at
> __randomizedtesting.SeedInfo.seed([D43A2A18EB61840A:E723C5066BA23E5C]:0)
> 04:07:06 [junit4] > Caused by: java.lang.RuntimeException:
> java.lang.NullPointerException
> 04:07:06 [junit4] > at
> __randomizedtesting.SeedInfo.seed([D43A2A18EB61840A]:0)
> 04:07:06 [junit4] > at
> org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:332)
> 04:07:06 [junit4] > Caused by: java.lang.NullPointerException
> 04:07:06 [junit4] > at
> org.apache.lucene.index.DocumentsWriterFlushControl.findLargestNonPendingWriter(DocumentsWriterFlushControl.java:730)
> 04:07:06 [junit4] > at
> org.apache.lucene.index.DocumentsWriterFlushControl.checkoutLargestNonPendingWriter(DocumentsWriterFlushControl.java:750)
> 04:07:06 [junit4] > at
> org.apache.lucene.index.DocumentsWriter.flushOneDWPT(DocumentsWriter.java:256)
> 04:07:06 [junit4] > at
> org.apache.lucene.index.IndexWriter.flushNextBuffer(IndexWriter.java:3203)
> 04:07:06 [junit4] > at
> org.apache.lucene.index.RandomIndexWriter.maybeFlushOrCommit(RandomIndexWriter.java:189)
> 04:07:06 [junit4] > at
> org.apache.lucene.index.RandomIndexWriter.addDocument(RandomIndexWriter.java:174)
> 04:07:06 [junit4] > at
> org.apache.lucene.index.TestIndexWriterDelete$1.run(TestIndexWriterDelete.java:326)
> 04:07:06 [junit4] 2> NOTE: test params are: codec=CheapBastard,
> sim=RandomSimilarity(queryNorm=false): {field=DFR I(ne)1, contents=DFR
> G3(800.0), city=DFR G1, id=LM Jelinek-Mercer(0.100000), content=DFR I(ne)B1},
> locale=sv-SE, timezone=Pacific/Kosrae
> {code}
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