Daryn Sharp created YARN-690:
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Summary: RM exits on token cancel/renew problems
Key: YARN-690
URL: https://issues.apache.org/jira/browse/YARN-690
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Affects Versions: 0.23.7, 3.0.0, 2.0.5-beta
Reporter: Daryn Sharp
Assignee: Daryn Sharp
Priority: Blocker
The DelegationTokenRenewer thread is critical to the RM. When a
non-IOException occurs, the thread calls System.exit to prevent the RM from
running w/o the thread. It should be exiting only on non-RuntimeExceptions.
The problem is especially bad in 23 because the yarn protobuf layer converts
IOExceptions into UndeclaredThrowableExceptions (RuntimeException) which causes
the renewer to abort the process. An UnknownHostException takes down the RM...
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