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  1. Hadoop YARN
  2. YARN-2492 (Clone of YARN-796) Allow for (admin) labels on nodes and resource-requests
  3. YARN-2756

use static variable (Resources.none()) for not-running Node.resource in CommonNodeLabelsManager to save memory.

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Minor
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      use static variable (Resources.none()) for not-running Node.resource in CommonNodeLabelsManager to save memory. When a Node is not activated, the resource is never used, When a Node is activated, a new resource will be assigned to it in RMNodeLabelsManager#activateNode (nm.resource = resource) So it would be better to use static variable Resources.none() instead of allocating a new variable(Resource.newInstance(0, 0)) for each node deactivation.

        Attachments

        1. YARN-2756.000.patch
          2 kB
          Zhihai Xu

          Activity

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            • Assignee:
              zxu Zhihai Xu
              Reporter:
              zxu Zhihai Xu
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              • Created:
                Updated:
                Resolved: