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https://issues.apache.org/jira/browse/LUCENE-7248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15254400#comment-15254400
]
Robert Muir commented on LUCENE-7248:
-------------------------------------
The documentation on FSDirectory warns you about ClosedChannelException.
Unfortunately: there is not really anything we can do about it in lucene: its a
jvm thing.
{quote}
* <p><b>NOTE:</b> Accessing one of the above subclasses either directly or
* indirectly from a thread while it's interrupted can close the
* underlying channel immediately if at the same time the thread is
* blocked on IO. The channel will remain closed and subsequent access
* to the index will throw a {@link ClosedChannelException}.
* Applications using {@link Thread#interrupt()} or
* {@link Future#cancel(boolean)} should use the slower legacy
* {@code RAFDirectory} from the {@code misc} Lucene module instead.
{quote}
> Interrupting IndexWriter causing unhandled ClosedChannelException
> -----------------------------------------------------------------
>
> Key: LUCENE-7248
> URL: https://issues.apache.org/jira/browse/LUCENE-7248
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/store
> Affects Versions: 5.3
> Reporter: Alexandre Philbert
> Labels: exception, interrupt, lock, nio, release
>
> When interrupting the IndexWriter, sometimes an InterruptedException is
> correctly handled but other times it isn't. When unhandled, the IndexWriter
> 'closes' and any other operation throws AlreadyClosedException. Here is a
> stack trace:
> java.nio.channels.ClosedChannelException
> at sun.nio.ch.FileLockImpl.release(FileLockImpl.java:58)
> at java.nio.channels.FileLock.close(FileLock.java:309)
> at
> org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.close(NativeFSLockFactory.java:194)
> at org.apache.lucene.util.IOUtils.close(IOUtils.java:97)
> at org.apache.lucene.util.IOUtils.close(IOUtils.java:84)
> at
> org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2103)
> at org.apache.lucene.index.IndexWriter.tragicEvent(IndexWriter.java:4574)
> at
> org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1487)
> at
> com.google.gerrit.lucene.AutoCommitWriter.updateDocument(AutoCommitWriter.java:100)
> at
> org.apache.lucene.index.TrackingIndexWriter.updateDocument(TrackingIndexWriter.java:55)
> at com.google.gerrit.lucene.SubIndex.replace(SubIndex.java:183)
> at
> com.google.gerrit.lucene.LuceneChangeIndex.replace(LuceneChangeIndex.java:326)
> at
> com.google.gerrit.server.index.ChangeIndexer$IndexTask.call(ChangeIndexer.java:243)
> at
> com.google.gerrit.server.index.ChangeIndexer$IndexTask.call(ChangeIndexer.java:1)
> at
> com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:108)
> at
> com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:41)
> at
> com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:77)
> at
> com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:310)
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:132)
> at
> com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:61)
> at
> com.google.gerrit.server.index.ChangeIndexer.submit(ChangeIndexer.java:200)
> at
> com.google.gerrit.server.index.ChangeIndexer.indexAsync(ChangeIndexer.java:133)
> at
> com.google.gerrit.server.change.PostReviewers.addReviewers(PostReviewers.java:246)
> at
> com.google.gerrit.server.change.PostReviewers.putAccount(PostReviewers.java:156)
> at
> com.google.gerrit.server.change.PostReviewers.apply(PostReviewers.java:138)
> at
> com.google.gerrit.sshd.commands.SetReviewersCommand.modifyOne(SetReviewersCommand.java:158)
> at
> com.google.gerrit.sshd.commands.SetReviewersCommand.run(SetReviewersCommand.java:112)
> at com.google.gerrit.sshd.SshCommand$1.run(SshCommand.java:48)
> at com.google.gerrit.sshd.BaseCommand$TaskThunk.run(BaseCommand.java:442)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
> at com.google.gerrit.server.git.WorkQueue$Task.run(WorkQueue.java:377)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> [...]
> org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
> at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:719)
> at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:733)
> at
> org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1471)
> at
> com.google.gerrit.lucene.AutoCommitWriter.updateDocument(AutoCommitWriter.java:100)
> at
> org.apache.lucene.index.TrackingIndexWriter.updateDocument(TrackingIndexWriter.java:55)
> at com.google.gerrit.lucene.SubIndex.replace(SubIndex.java:183)
> at
> com.google.gerrit.lucene.LuceneChangeIndex.replace(LuceneChangeIndex.java:326)
> at
> com.google.gerrit.server.index.ChangeIndexer$IndexTask.call(ChangeIndexer.java:243)
> at
> com.google.gerrit.server.index.ChangeIndexer$IndexTask.call(ChangeIndexer.java:1)
> at
> com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:108)
> at
> com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:41)
> at
> com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:77)
> at
> com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:310)
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:132)
> at
> com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:61)
> at
> com.google.gerrit.server.index.ChangeIndexer.submit(ChangeIndexer.java:200)
> at
> com.google.gerrit.server.index.ChangeIndexer.indexAsync(ChangeIndexer.java:133)
> at
> com.google.gerrit.server.change.PostReviewers.addReviewers(PostReviewers.java:246)
> at
> com.google.gerrit.server.change.PostReviewers.putAccount(PostReviewers.java:156)
> at
> com.google.gerrit.server.change.PostReviewers.apply(PostReviewers.java:138)
> at
> com.google.gerrit.sshd.commands.SetReviewersCommand.modifyOne(SetReviewersCommand.java:158)
> at
> com.google.gerrit.sshd.commands.SetReviewersCommand.run(SetReviewersCommand.java:112)
> at com.google.gerrit.sshd.SshCommand$1.run(SshCommand.java:48)
> at
> com.google.gerrit.sshd.BaseCommand$TaskThunk.run(BaseCommand.java:442)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
> at com.google.gerrit.server.git.WorkQueue$Task.run(WorkQueue.java:377)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.nio.channels.ClosedByInterruptException
> at
> java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:202)
> at sun.nio.ch.FileChannelImpl.size(FileChannelImpl.java:312)
> at
> org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.ensureValid(NativeFSLockFactory.java:170)
> at
> org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:43)
> at
> org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
> at
> org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.<init>(CompressingStoredFieldsWriter.java:110)
> 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.index.DefaultIndexingChain.initStoredFieldsWriter(DefaultIndexingChain.java:81)
> at
> org.apache.lucene.index.DefaultIndexingChain.startStoredFields(DefaultIndexingChain.java:258)
> at
> org.apache.lucene.index.DefaultIndexingChain.processDocument(DefaultIndexingChain.java:295)
> at
> org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:234)
> at
> org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:450)
> at
> org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1475)
> ... 29 more
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