Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Blocker Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.23.0
    • Fix Version/s: 0.23.1
    • Component/s: mrv2
    • Labels:
      None

      Description

      If all current {{Fetcher}}s complete while an in-memory merge is in progress - shuffle could hang.
      Specifically - if the memory freed by an in-memory merge does not bring MergeManager.usedMemory below MergeManager.memoryLimit and all current Fetchers complete before the in-memory merge completes, another in-memory merge will not be triggered - and shuffle will hang. (All new fetchers are asked to WAIT).

      1. MR-3721.txt
        4 kB
        Siddharth Seth

        Issue Links

          Activity

          Jason Lowe made changes -
          Link This issue is related to MAPREDUCE-4842 [ MAPREDUCE-4842 ]
          Arun C Murthy made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          Arun C Murthy made changes -
          Status Patch Available [ 10002 ] Resolved [ 5 ]
          Fix Version/s 0.23.1 [ 12318883 ]
          Resolution Fixed [ 1 ]
          Siddharth Seth made changes -
          Status Open [ 1 ] Patch Available [ 10002 ]
          Target Version/s 0.23.1 [ 12318883 ]
          Siddharth Seth made changes -
          Attachment MR-3721.txt [ 12511898 ]
          Arun C Murthy made changes -
          Field Original Value New Value
          Link This issue blocks MAPREDUCE-3719 [ MAPREDUCE-3719 ]
          Siddharth Seth created issue -

            People

            • Assignee:
              Siddharth Seth
              Reporter:
              Siddharth Seth
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development