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https://issues.apache.org/jira/browse/SPARK-6952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14497340#comment-14497340
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Apache Spark commented on SPARK-6952:
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User 'punya' has created a pull request for this issue:
https://github.com/apache/spark/pull/5535
> spark-daemon.sh PID reuse check fails on long classpath
> -------------------------------------------------------
>
> Key: SPARK-6952
> URL: https://issues.apache.org/jira/browse/SPARK-6952
> Project: Spark
> Issue Type: Bug
> Components: Deploy
> Affects Versions: 1.3.0
> Reporter: Punya Biswal
>
> {{sbin/spark-daemon.sh}} uses {{ps -p "$TARGET_PID" -o args=}} to figure out
> whether the process running with the expected PID is actually a Spark daemon.
> When running with a large classpath, the output of {{ps}} gets truncated and
> the check fails spuriously.
> I think we should weaken the check to see if it's a java command (which is
> something we do in other parts of the script) rather than looking for the
> specific main class name. This means that SPARK-4832 might happen under a
> slightly broader range of circumstances (a *java* program happened to reuse
> the same PID), but it seems worthwhile compared to failing consistently with
> a large classpath.
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