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  1. Hadoop YARN
  2. YARN-913 Umbrella: Add a way to register long-lived services in a YARN cluster
  3. YARN-3373

TTL & identity aware read cache for the SRV records

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    Details

    • Type: Sub-task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: yarn
    • Labels:
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      Description

      The freshness/staleness checks of the SRV record should be an abstracted implementation detail of the service registry.

      This implies that every client is asked to listServiceRecords each time they require a list of the records, which would be incredibly expensive if it involved network round-trips during normal tight-loop operations.

      The combination of unique binding records and the TTL provides the equivalent of the DNS (fixed CNAME -> unique A) roll-over mechanisms used to cache-bust effectively on the client-side.

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            • Assignee:
              Unassigned
              Reporter:
              gopalv Gopal Vijayaraghavan
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              Dates

              • Created:
                Updated: