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  1. Cookbooks
  2. COOK-79

Reserve Hadoop ports from being used as local ports

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Component/s: hadoop
    • Labels:
      None
    • Rank:
      1|hzz3n3:

      Description

      During Cask's integration tests, we commonly run into a problem where a given Hadoop service will fail to start due to some TCP client using the port the services uses for binding. Obviously, this causes automatic provisioning to fail.

      We should set `net.ipv4.ip_local_reserved_ports` sysctl option appropriately, to reserve these ports as server ports.

      https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt
      https://lwn.net/Articles/373198/

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            • Assignee:
              chris Chris Gianelloni
              Reporter:
              chris Chris Gianelloni
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              • Created:
                Updated:
                Resolved: