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Posted to yarn-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2013/01/25 20:07:12 UTC

[jira] [Created] (YARN-360) Allow apps to concurrently register tokens for renewal

Daryn Sharp created YARN-360:
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             Summary: Allow apps to concurrently register tokens for renewal
                 Key: YARN-360
                 URL: https://issues.apache.org/jira/browse/YARN-360
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 2.0.0-alpha, 3.0.0, 0.23.3
            Reporter: Daryn Sharp
            Priority: Critical


{{DelegationTokenRenewer#addApplication}} has an unnecessary {{synchronized}} keyword.  This serializes job submissions and can add unnecessary latency and/or hang all submissions if there are problems renewing the token.

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