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  1. Apache Storm
  2. STORM-3679

misuse of nodeId as hostname in LoadAwareShuffleGrouping

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.0, 2.1.0, 2.2.0
    • Fix Version/s: 2.3.0
    • Component/s: None
    • Labels:
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      Description

      LoadAwareShuffleGrouping misuses nodeId as the hostname and it causes consistent invalid DNS queries for "hostnames" like 2a1f2cf3-c701-4621-9e93-640b4e63be48-<ip>.

      This causes excessive unnecessary loads on nscd and DNS. Also because of this bug, every target tasks will be treated as at least RACK_LOCAL because if an ip address can't be determined, YahooDNSToSwitchMapping treats it as DEFAULT_RACK. This doesn't impact WORKER_LOCAL and HOST_LOCAL though.

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            • Assignee:
              ethanli Ethan Li
              Reporter:
              ethanli Ethan Li
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