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https://issues.apache.org/jira/browse/MAPREDUCE-6346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14521138#comment-14521138
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Tony Reix commented on MAPREDUCE-6346:
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In short: I'd like to receive some help by experts of this code in order to
quickly understand what is the root cause of this crash.
It looks that the crash appears long time after a bug has corrupted data, when
reading data. And I have no idea about what this test is aimed to test and how
it does it and what is the code to look at.
> mapred.nativetask.kvtest.KVTest crashes on PPC64LE
> --------------------------------------------------
>
> Key: MAPREDUCE-6346
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6346
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.7.1
> Environment: RHEL 7.1 - PPC64 LE - OpenJDK
> rhel-2.5.5.1.ael7b_1-ppc64le u79-b14
> Reporter: Tony Reix
>
> Test org.apache.hadoop.mapred.nativetask.kvtest.KVTest (and 5 or 6 other
> tests) crashes on PPC64LE .
> ....
> 15/04/28 10:46:06 INFO Mid-spill: { id: 4, collect: 245 ms, in-memory sort:
> 32 ms, in-memory records: 48202, merge&spill: 80 ms, uncompressed size:
> 5031451, real size: 3739319 path:
> /tmp/hadoop-reixt/mapred/local/localRunner/reixt/jobcache/job_local408221154_0008/attempt_local408221154_0008_m_000000_0/output/spill4.out
> }
> # A fatal error has been detected by the Java Runtime Environment:
> #
> # SIGSEGV (0xb) at pc=0x00003fff6c7d8e50, pid=945, tid=70366264881616
> #
> # JRE version: OpenJDK Runtime Environment (7.0_79-b14) (build
> 1.7.0_79-mockbuild_2015_04_10_10_48-b00)
> # Java VM: OpenJDK 64-Bit Server VM (24.79-b02 mixed mode linux-ppc64
> compressed oops)
> # Derivative: IcedTea 2.5.5
> # Distribution: Built on Red Hat Enterprise Linux Server release 7.1 (Maipo)
> (Fri Apr 10 10:48:01 EDT 2015)
> # Problematic frame:
> # C [libnativetask.so.1.0.0+0x58e50]
> NativeTask::WritableUtils::ReadVLongInner(char const*, unsigned int&)+0x40
> #
> # Core dump written. Default location:
> /home/reixt/HADOOP-2.7.0/hadoop-FromApache-Trunk-201504241115/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/core
> or core.945
> #
> # An error report file with more information is saved as:
> # /tmp/jvm-945/hs_error.log
> #
> # If you would like to submit a bug report, please include
> # instructions on how to reproduce the bug and visit:
> # http://icedtea.classpath.org/bugzilla
> # The crash happened outside the Java Virtual Machine in native code.
> # See problematic frame for where to report the bug.
> #
> /bin/sh: line 1: 945 Aborted (core dumped)
> /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.79-2.5.5.1.ael7b_1.ppc64le/jre/bin/java
> -Xmx4096m -XX:MaxPermSize=768m -XX:+HeapDumpOnOutOfMemoryError -jar
> /home/reixt/HADOOP-2.7.0/hadoop-FromApache-Trunk-201504241115/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/target/surefire/surefirebooter9078773752877532263.jar
>
> /home/reixt/HADOOP-2.7.0/hadoop-FromApache-Trunk-201504241115/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/target/surefire/surefire4138802116387705281tmp
>
> /home/reixt/HADOOP-2.7.0/hadoop-FromApache-Trunk-201504241115/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/target/surefire/surefire_01525011254551870798tmp
> /tmp/jvm-945/hs_error.log :
> # C [libnativetask.so.1.0.0+0x58e50]
> NativeTask::WritableUtils::ReadVLongInner(char const*, unsigned int&)+0x40
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