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  1. Hadoop YARN
  2. YARN-7258

Add Node and Rack Hints to Opportunistic Scheduler

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.9.0, 3.0.0, 3.1.0
    • Component/s: None
    • Labels:
      None

      Description

      Currently, the Opportunistic Scheduler ignores the node and rack information and allocates strictly on the least loaded node (based on queue length) at the time it received the request. This JIRA is to track changes needed to allow the OpportunisticContainerAllocator to take the node/rack name as hints.

      The flow would be:

      1. If requested node found in the top K leastLoaded nodes, allocate on that node
      2. Else, allocate on least loaded node on the same rack from the top K least Loaded nodes.
      3. Else, allocate on least loaded node.

        Attachments

        1. YARN-7258.001.patch
          103 kB
          kartheek muthyala
        2. YARN-7258.002.patch
          117 kB
          kartheek muthyala
        3. YARN-7258.003.patch
          121 kB
          kartheek muthyala
        4. YARN-7258.004.patch
          149 kB
          kartheek muthyala

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              • Assignee:
                kartheek kartheek muthyala
                Reporter:
                asuresh Arun Suresh
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                Dates

                • Created:
                  Updated:
                  Resolved: