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https://issues.apache.org/jira/browse/SPARK-1861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14098477#comment-14098477
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sam commented on SPARK-1861:
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OK, so what I need to do is ask my DevOps to upgrade our cluster to 5.1.0.
> ArrayIndexOutOfBoundsException when reading bzip2 files
> -------------------------------------------------------
>
> Key: SPARK-1861
> URL: https://issues.apache.org/jira/browse/SPARK-1861
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 0.9.0, 1.0.0
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
>
> Hadoop uses CBZip2InputStream to decode bzip2 files. However, the
> implementation is not threadsafe and Spark may run multiple tasks in the same
> JVM, which leads to this error. This is not a problem for Hadoop MapReduce
> because Hadoop runs each task in a separate JVM.
> A workaround is to set `SPARK_WORKER_CORES=1` in spark-env.sh for a
> standalone cluster.
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