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https://issues.apache.org/jira/browse/LUCENE-3251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Simon Willnauer resolved LUCENE-3251.
-------------------------------------
Resolution: Fixed
committed to trunk and backported to 3.x
> Directory#copy leaks file handles
> ---------------------------------
>
> Key: LUCENE-3251
> URL: https://issues.apache.org/jira/browse/LUCENE-3251
> Project: Lucene - Java
> Issue Type: Bug
> Components: core/store
> Affects Versions: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0
> Reporter: Simon Willnauer
> Assignee: Simon Willnauer
> Fix For: 3.4, 4.0
>
> Attachments: LUCENE-3251.patch
>
>
> Directory#copy doesn't close the target directories output stream if
> sourceDir.openInput(srcFile) throws an Exception. Before LUCENE-3218
> Directory#copy wasn't used extensively so this wasn't likely to happen during
> tests. Today we had a failure on the 3.x branch that is likely caused by this
> bug:
> {noformat}
> [junit] Testsuite: org.apache.lucene.index.TestAddIndexes
> [junit] Testcase:
> testAddIndexesWithRollback(org.apache.lucene.index.TestAddIndexes):
> Caused an ERROR
> [junit] MockDirectoryWrapper: cannot close: there are still open files:
> {_co.cfs=1}
> [junit] java.lang.RuntimeException: MockDirectoryWrapper: cannot close:
> there are still open files: {_co.cfs=1}
> [junit] at
> org.apache.lucene.store.MockDirectoryWrapper.close(MockDirectoryWrapper.java:483)
> [junit] at
> org.apache.lucene.index.TestAddIndexes$RunAddIndexesThreads.closeDir(TestAddIndexes.java:693)
> [junit] at
> org.apache.lucene.index.TestAddIndexes.testAddIndexesWithRollback(TestAddIndexes.java:924)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$LuceneTestCaseRunner.runChild(LuceneTestCase.java:1277)
> [junit] at
> org.apache.lucene.util.LuceneTestCase$LuceneTestCaseRunner.runChild(LuceneTestCase.java:1195)
> [junit] Caused by: java.lang.RuntimeException: unclosed IndexOutput:
> _co.cfs
> [junit] at
> org.apache.lucene.store.MockDirectoryWrapper.addFileHandle(MockDirectoryWrapper.java:410)
> [junit] at
> org.apache.lucene.store.MockCompoundFileDirectoryWrapper.<init>(MockCompoundFileDirectoryWrapper.java:39)
> [junit] at
> org.apache.lucene.store.MockDirectoryWrapper.createCompoundOutput(MockDirectoryWrapper.java:439)
> [junit] at
> org.apache.lucene.index.SegmentMerger.createCompoundFile(SegmentMerger.java:128)
> [junit] at
> org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:3101)
> [junit] at
> org.apache.lucene.index.TestAddIndexes$CommitAndAddIndexes3.doBody(TestAddIndexes.java:839)
> [junit] at
> org.apache.lucene.index.TestAddIndexes$RunAddIndexesThreads$1.run(TestAddIndexes.java:667)
> [junit]
> [junit]
> [junit] Tests run: 18, Failures: 0, Errors: 1, Time elapsed: 9.034 sec
> [junit]
> [junit] ------------- Standard Output ---------------
> [junit] java.lang.IllegalStateException: CFS has pending open files
> [junit] at
> org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:143)
> [junit] at
> org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:181)
> [junit] at
> org.apache.lucene.store.DefaultCompoundFileDirectory.close(DefaultCompoundFileDirectory.java:58)
> [junit] at
> org.apache.lucene.store.MockCompoundFileDirectoryWrapper.close(MockCompoundFileDirectoryWrapper.java:55)
> [junit] at
> org.apache.lucene.index.SegmentMerger.createCompoundFile(SegmentMerger.java:139)
> [junit] at
> org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:3101)
> [junit] at
> org.apache.lucene.index.TestAddIndexes$CommitAndAddIndexes3.doBody(TestAddIndexes.java:839)
> [junit] at
> org.apache.lucene.index.TestAddIndexes$RunAddIndexesThreads$1.run(TestAddIndexes.java:667)
> {noformat}
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