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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2015/06/17 00:50:01 UTC

[jira] [Created] (YARN-3811) NM restarts could lead to app failures

Karthik Kambatla created YARN-3811:
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             Summary: NM restarts could lead to app failures
                 Key: YARN-3811
                 URL: https://issues.apache.org/jira/browse/YARN-3811
             Project: Hadoop YARN
          Issue Type: Bug
          Components: nodemanager
    Affects Versions: 2.7.0
            Reporter: Karthik Kambatla
            Assignee: Karthik Kambatla
            Priority: Critical


Consider the following scenario:
1. RM assigns a container on node N to an app A.
2. Node N is restarted
3. A tries to launch container on node N.

3 could lead to an NMNotYetReadyException depending on whether NM N has registered with the RM. In MR, this is considered a task attempt failure. A few of these could lead to a task/job failure.



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