Vinod Kumar Vavilapalli created YARN-171:
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Summary: NodeManager should serve logs directly if log-aggregation
is not enabled
Key: YARN-171
URL: https://issues.apache.org/jira/browse/YARN-171
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Affects Versions: 0.23.3
Reporter: Vinod Kumar Vavilapalli
NodeManagers never serve logs for completed applications. If log-aggregation is
not enabled, in the interim, due to bugs like YARN-162, this is a serious
problem for users as logs are necessarily not available.
We should let nodes serve logs directly if
YarnConfiguration.LOG_AGGREGATION_ENABLED is set. This should be okay as
NonAggregatingLogHandler can retain logs upto
YarnConfiguration.NM_LOG_RETAIN_SECONDS.
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