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  1. IMPALA
  2. IMPALA-9299

Node Blacklisting: Coordinators should blacklist unhealthy nodes

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    Details

    • Type: New Feature
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:
      None
    • Epic Color:
      ghx-label-10

      Description

      Top level JIRA for Node Blacklisting.

      High level description of node blacklisting, from IMPALA-8339:

      This patch adds the concept of a blacklist of executors to the
      coordinator, which removes executors from consideration for query
      scheduling. Blacklisting decisions are local to a given coordinator
      and are not included in statestore updates.

      The intention is to allow coordinators to be more aggressive about
      deciding that an exeutor is unhealthy or unavailable, to minimize
      failed queries in environments where cluster membership may be more
      variable, rather than having to wait on the statestore heartbeat
      mechanism to decide that the executor is down.

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              • Assignee:
                twmarshall Thomas Tauber-Marshall
                Reporter:
                stakiar Sahil Takiar
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                Dates

                • Created:
                  Updated: