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  1. Hadoop YARN
  2. YARN-6963

Prevent other containers from staring when a container is re-initializing

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      Further to discussions in YARN-6920.
      Container re-initialization will lead to momentary relinquishing of NM resources when the container is brought down followed by re-claiming of the same resources when it is re-launched. If there are Opportunistic containers in the queue, it can lead to un-necessary churn if one of those opportunistic containers are started and immediately killed.
      This JIRA tracks changes required to prevent the above by ensuring the resources for a container are 'locked' for the during of the container lifetime - including the time it takes for a re-initialization.

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            • Assignee:
              asuresh Arun Suresh
              Reporter:
              asuresh Arun Suresh

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              • Created:
                Updated:

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