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  1. MariaDB ColumnStore
  2. MCOL-4770

Distribute queries processing b/w ExeMgrs/primprocs in the cluster.

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 6.1.1
    • cmapi-22.08.1
    • cmapi
    • None
    • 2021-9

    Description

      Despite the fact CMAPI starts ExeMgr on every cluster node the Columnstore.xml contains a description of a single ExeMgr that resides at the primary only.
      The preliminary testing in AWS demonstrates 20% performance improvement if there workload is distributed across multiple EMs so CMAPI now adds a new ExeMgr section for every node added into the cluster and removes it when the node is deleted.

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          causes

          Task - A task that needs to be done. MCOL-4860 Disable multiple ExeMgrs in the cluster

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MCOL-4593 Multiple concurrent queries with aggregates are bottlenecked, result in lack of user scalability

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Stalled

          Activity

            People

              dleeyh Daniel Lee (Inactive)
              drrtuy Roman
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              Dates

                Created:
                Updated:
                Resolved:

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