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  1. Hadoop YARN
  2. YARN-4041

Slow delegation token renewal can severely prolong RM recovery

    Details

    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      When the RM does a work-preserving restart it synchronously tries to renew delegation tokens for every active application. If a token server happens to be down or is running slow and a lot of the active apps were using tokens from that server then it can have a huge impact on the time it takes the RM to process the restart.

        Attachments

        1. 0001-YARN-4041.patch
          7 kB
          Sunil G
        2. 0002-YARN-4041.patch
          7 kB
          Sunil G
        3. 0003-YARN-4041.patch
          8 kB
          Sunil G
        4. 0004-YARN-4041.patch
          8 kB
          Sunil G
        5. 0005-YARN-4041.patch
          9 kB
          Sunil G

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              • Assignee:
                sunilg Sunil G
                Reporter:
                jlowe Jason Lowe
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                Dates

                • Created:
                  Updated:
                  Resolved: