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  1. IMPALA
  2. IMPALA-8634

Catalog client should be resilient to temporary Catalog outage

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Details

    • Improvement
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • Impala 3.2.0
    • Impala 3.4.0
    • Catalog
    • None
    • ghx-label-6

    Description

      Currently, when the catalog server is down, catalog clients will fail all RPCs sent to it. In essence, DDL queries will fail and the Impala service becomes a lot less functional. Catalog clients should consider retrying failed RPCs with some exponential backoff in between while catalog server is being restarted after crashing. We probably need to add a test to exercise the paths of catalog restart to verify coordinators are resilient to it.

      cc'ing stakiar, joemcdonnell, twm378

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              stakiar Sahil Takiar
              kwho Michael Ho
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                Updated:
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