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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-5849) Scary "read past EOF" in RAMDir
Date Mon, 28 Jul 2014 09:33:40 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-5849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14076043#comment-14076043
] 

Michael McCandless commented on LUCENE-5849:
--------------------------------------------

{noformat}
JUnit version 4.10
.Jul 28, 2014 9:31:47 PM com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler
uncaughtException
WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #2,6,TGRP-TestBinaryDocValuesUpdates]
org.apache.lucene.index.MergePolicy$MergeException: java.io.EOFException: read past EOF: RAMInputStream(name=RAMInputStream(name=_6.cfs)
[slice=_6_Memory_0.mdvd])
	at __randomizedtesting.SeedInfo.seed([879E92147F435095]:0)
	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:545)
	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:518)
Caused by: java.io.EOFException: read past EOF: RAMInputStream(name=RAMInputStream(name=_6.cfs)
[slice=_6_Memory_0.mdvd])
	at org.apache.lucene.store.RAMInputStream.switchCurrentBuffer(RAMInputStream.java:98)
	at org.apache.lucene.store.RAMInputStream.readBytes(RAMInputStream.java:81)
	at org.apache.lucene.store.MockIndexInputWrapper.readBytes(MockIndexInputWrapper.java:128)
	at org.apache.lucene.store.BufferedChecksumIndexInput.readBytes(BufferedChecksumIndexInput.java:49)
	at org.apache.lucene.store.DataInput.readBytes(DataInput.java:82)
	at org.apache.lucene.store.DataInput.skipBytes(DataInput.java:266)
	at org.apache.lucene.store.ChecksumIndexInput.seek(ChecksumIndexInput.java:51)
	at org.apache.lucene.codecs.CodecUtil.checksumEntireFile(CodecUtil.java:267)
	at org.apache.lucene.codecs.memory.MemoryDocValuesProducer.checkIntegrity(MemoryDocValuesProducer.java:258)
	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsReader.checkIntegrity(PerFieldDocValuesFormat.java:329)
	at org.apache.lucene.index.SegmentReader.checkIntegrity(SegmentReader.java:644)
	at org.apache.lucene.index.SegmentMerger.<init>(SegmentMerger.java:60)
	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3978)
	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3589)
	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:405)
	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:482)
{noformat}

> Scary "read past EOF" in RAMDir
> -------------------------------
>
>                 Key: LUCENE-5849
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5849
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Michael McCandless
>
> Nightly build hit this: http://builds.flonkings.com/job/Lucene-trunk-Linux-Java7-64-test-only/91095
> And I'm able to repro at least once after beasting w/ the right JVM (1.7.0_55) and G1GC.



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