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  1. IMPALA
  2. IMPALA-9155 Single Admission Controller per Cluster
  3. IMPALA-10591

Fix issues with failed ReleaseQueryBackends rpc

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Impala 4.0.0
    • Fix Version/s: Impala 4.0.0
    • Component/s: Backend
    • Labels:
      None
    • Epic Color:
      ghx-label-14

      Description

      Currently, if the admission control service is being used, the coordinator will attempt the ReleaseQueryBackends rpc up to 3 times before giving up. If a ReleaseQueryBackends rpc fails it can lead to resources not being released properly. If a subsequent ReleaseQuery rpc succeeds, we'll hit a DCHECK as AdmissionController::ReleaseQuery() assumes that all backends have already been released.

      We should clean this up and ensure that resources are always released properly.

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            • Assignee:
              twmarshall Thomas Tauber-Marshall
              Reporter:
              twmarshall Thomas Tauber-Marshall
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              • Created:
                Updated:
                Resolved: