[jira] [Created] (YARN-3759) Include command line, localization info and env vars on AM launch failure

["Steve Loughran (JIRA)" <ji...@apache.org>]

Steve Loughran created YARN-3759:
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             Summary: Include command line, localization info and env vars on AM launch failure
                 Key: YARN-3759
                 URL: https://issues.apache.org/jira/browse/YARN-3759
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: nodemanager
    Affects Versions: 2.7.0
            Reporter: Steve Loughran
            Priority: Minor


While trying to diagnose AM launch failures, its important to be able to get at the final, expanded {{CLASSPATH}} and other env variables. We don't get that today: you can log the unexpanded values on the client, and tweak NM ContainerExecutor log levels to DEBUG & get some of this —‚ut you don't get it in the task logs, and tuning NM log level isn't viable on a large, busy cluster.

Launch failures should include some env specifics:
# list of env vars (ideally, full getenv values), with some stripping of "sensitive" options (i'm thinking AWS env vars here)
# command line
# path localisations

These can go in the task logs, we don't need to include them in the application report.



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