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https://issues.apache.org/jira/browse/LUCENE-8275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16452403#comment-16452403
]
ASF subversion and git services commented on LUCENE-8275:
---------------------------------------------------------
Commit aa341476fdb6836bfc62b096219e268e52006103 in lucene-solr's branch
refs/heads/master from [~simonw]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=aa34147 ]
LUCENE-8275: Push up #checkPendingDeletes to Directory
IndexWriter checks in it's ctor if the incoming directory is an
FSDirectory. If that is the case it ensures that the directory retries
deleting it's pending deletes and if there are pending deletes it will
fail creating the writer. Yet, this check didn't unwrap filter directories
or subclasses like FileSwitchDirectory such that in the case of MDW we
never checked for pending deletes.
There are also two places in FSDirectory that first removed the file
that was supposed to be created / renamed to from the pending deletes set
and then tried to clean up pending deletes which excluded the file. These
places now remove the file from the set after the pending deletes are checked.
> Push up #checkPendingDeletes to Directory
> -----------------------------------------
>
> Key: LUCENE-8275
> URL: https://issues.apache.org/jira/browse/LUCENE-8275
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 7.4, master (8.0)
> Reporter: Simon Willnauer
> Priority: Major
> Fix For: 7.4, master (8.0)
>
> Attachments: LUCENE-8275.patch, LUCENE-8275.patch
>
>
> IndexWriter checks in it's ctor if the incoming directory is an
> FSDirectory. If that is the case it ensures that the directory retries
> deleting it's pending deletes and if there are pending deletes it will
> fail creating the writer. Yet, this check didn't unwrap filter directories
> or subclasses like FileSwitchDirectory such that in the case of MDW we
> never checked for pending deletes.
>
> There are also two places in FSDirectory that first removed the file
> that was supposed to be created / renamed to from the pending deletes set
> and then tried to clean up pending deletes which excluded the file. These
> places now remove the file from the set after the pending deletes are
> checked.
>
> This caused some test failures lately unfortunately very timing dependent:
>
> {noformat}
> FAILED:
> junit.framework.TestSuite.org.apache.lucene.search.TestSearcherManager
> Error Message:
> Captured an uncaught exception in thread: Thread[id=1567, name=Thread-1363,
> state=RUNNABLE, group=TGRP-TestSearcherManager]
> Stack Trace:
> com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an
> uncaught exception in thread: Thread[id=1567, name=Thread-1363,
> state=RUNNABLE, group=TGRP-TestSearcherManager]
> Caused by: java.lang.RuntimeException:
> java.nio.file.FileAlreadyExistsException:
> /home/jenkins/workspace/Lucene-Solr-master-Linux/lucene/build/core/test/J1/temp/lucene.search.TestSearcherManager_BA998C838D219DA9-001/tempDir-001/_0.fdt
> at __randomizedtesting.SeedInfo.seed([BA998C838D219DA9]:0)
> at
> org.apache.lucene.search.TestSearcherManager$8.run(TestSearcherManager.java:590)
> Caused by: java.nio.file.FileAlreadyExistsException:
> /home/jenkins/workspace/Lucene-Solr-master-Linux/lucene/build/core/test/J1/temp/lucene.search.TestSearcherManager_BA998C838D219DA9-001/tempDir-001/_0.fdt
> at
> java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:94)
> at
> java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
> at
> java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)
> at
> java.base/sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:215)
> at
> java.base/java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:434)
> at
> org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
> at
> org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
> at
> org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:129)
> at
> org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:129)
> at
> org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:129)
> at
> org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
> at java.base/java.nio.file.Files.newOutputStream(Files.java:218)
> at
> org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:413)
> at
> org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:409)
> at
> org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:253)
> at
> org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:665)
> at
> org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
> at
> org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
> at
> org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.<init>(CompressingStoredFieldsWriter.java:116)
> at
> org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsWriter(CompressingStoredFieldsFormat.java:128)
> at
> org.apache.lucene.codecs.lucene50.Lucene50StoredFieldsFormat.fieldsWriter(Lucene50StoredFieldsFormat.java:183)
> at
> org.apache.lucene.codecs.asserting.AssertingStoredFieldsFormat.fieldsWriter(AssertingStoredFieldsFormat.java:48)
> at
> org.apache.lucene.index.StoredFieldsConsumer.initStoredFieldsWriter(StoredFieldsConsumer.java:39)
> at
> org.apache.lucene.index.StoredFieldsConsumer.startDocument(StoredFieldsConsumer.java:46)
> at
> org.apache.lucene.index.DefaultIndexingChain.startStoredFields(DefaultIndexingChain.java:363)
> at
> org.apache.lucene.index.DefaultIndexingChain.processDocument(DefaultIndexingChain.java:399)
> at
> org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:251)
> at
> org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:490)
> at
> org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1518)
> at
> org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1210)
> at
> org.apache.lucene.search.TestSearcherManager$8.run(TestSearcherManager.java:574)
> FAILED:
> org.apache.lucene.search.TestSearcherManager.testConcurrentIndexCloseSearchAndRefresh
> {noformat}
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