Sunil G created YARN-2293:
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Summary: Scoring for NMs to identify a better candidate to launch
AMs
Key: YARN-2293
URL: https://issues.apache.org/jira/browse/YARN-2293
Project: Hadoop YARN
Issue Type: Improvement
Components: nodemanager, resourcemanager
Reporter: Sunil G
Assignee: Sunil G
Container exit status from NM is giving indications of reasons for its failure.
Some times, it may be because of container launching problems in NM. In a
heterogeneous cluster, some machines with weak hardware may cause more
failures. It will be better not to launch AMs there more often. Also I would
like to clear that container failures because of buggy job should not result in
decreasing score.
As mentioned earlier, based on exit status if a scoring mechanism is added for
NMs in RM, then NMs with better scores can be given for launching AMs. Thoughts?
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