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  1. MariaDB ColumnStore
  2. MCOL-5305

Query initiated at slave MDB are stuck

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 22.08.3
    • Fix Version/s: 22.08.4
    • Component/s: ExeMgr
    • Labels:
      None
    • Sprint:
      2022-22

      Description

      The solution for MCOL-5279 was not good enough to resolve the MCOL-5279 for the queries started on MDB slaves in a cluster.
      The scenario mentioned in MCOL-5279 doesn't work if run at slave MDB.
      The MCOL-5279 solution made an assumption that the primary will have a fixed index always that is no the case when queries run at MDB slave nodes in a cluster.
      More generic approach makes an assumption there will be only one local connection b/w ExeMgr and PrimProc. DEC methods that use DEC::writeToClient searches for this local connection index and sends the message into this local connection in the last turn. This is possible b/c DEC:: methods synchronously send messages to cluster nodes.

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              Assignee:
              drrtuy Roman
              Reporter:
              drrtuy Roman
              Assigned for Review:
              David Hall David Hall
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                Dates

                Created:
                Updated:
                Resolved:

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