Szehon Ho created HIVE-7668:
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Summary: Improve error logging for spark test crashes
Key: HIVE-7668
URL: https://issues.apache.org/jira/browse/HIVE-7668
Project: Hive
Issue Type: Bug
Components: Spark, Testing Infrastructure
Reporter: Szehon Ho
While doing HIVE-7665, I noticed that spark local cluster will crash on any
dependency version mismatch, either due to native code link errors (like in
jetty) if unlucky, or gracefully (see spark's
ExecutorUncaughtExceptionHandler.scala).
To debug those issues, it would be nice to log a thread-dump upon normal JVM
exits by spark, as its unexpected by Hive's test framework. One way is to add
a shutdownHook that does this.
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