Punya Biswal created SPARK-6952:
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Summary: spark-daemon.sh 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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