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https://issues.apache.org/jira/browse/LUCENE-5919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14119961#comment-14119961
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ASF subversion and git services commented on LUCENE-5919:
---------------------------------------------------------
Commit 1622279 from [~mikemccand] in branch 'dev/trunk'
[ https://svn.apache.org/r1622279 ]
LUCENE-5919: fix IndexWriter exception handling when calling
IndexFileDeleter.decRef
> More carefully handle exceptions from IndexFileDeleter.decRef
> -------------------------------------------------------------
>
> Key: LUCENE-5919
> URL: https://issues.apache.org/jira/browse/LUCENE-5919
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/index
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.0, 4.11
>
> Attachments: LUCENE-5919.patch
>
>
> From test failure:
> https://builds.apache.org/job/Lucene-Solr-NightlyTests-trunk/613/
> {noformat}
> java.lang.AssertionError:
> TEST-TestIndexWriterOutOfMemory.testBasics-seed#[C4C9D7B4B9D5D290]: RefCount
> is 0 pre-decrement for file "_2_2_Lucene410_0.dvd"
> at
> __randomizedtesting.SeedInfo.seed([C4C9D7B4B9D5D290:F9117998813B8CE0]:0)
> at
> org.apache.lucene.index.IndexFileDeleter$RefCount.DecRef(IndexFileDeleter.java:725)
> at
> org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:611)
> at
> org.apache.lucene.index.IndexFileDeleter.decRef(IndexFileDeleter.java:599)
> at
> org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2851)
> at
> org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2952)
> at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2919)
> at
> org.apache.lucene.index.TestIndexWriterOutOfMemory.testBasics(TestIndexWriterOutOfMemory.java:215)
> Reproduce with: ant test -Dtestcase=TestIndexWriterOutOfMemory
> -Dtests.method=testBasics -Dtests.seed=C4C9D7B4B9D5D290 -Dtests.multiplier=2
> -Dtests.nightly=true -Dtests.slow=true
> -Dtests.linedocsfile=/home/jenkins/lucene-data/enwiki.random.lines.txt
> -Dtests.locale=mk_MK -Dtests.timezone=America/Vancouver
> -Dtests.file.encoding=ISO-8859-1
> {noformat}
> What happened was IW was trying to decRef a set of files, and at
> least one needed to be deleted, then virus checker threw exception,
> and IW later passed the full set of files back to decRef later despite
> that some had already been decRef'd the first time.
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