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  1. HPCC
  2. HPCC-3310

Thor multislave scripts calling slaves inefficiently and potentially causing sshd problems.

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.10.0
    • Component/s: None
    • Labels:

      Description

      [ In part mentioned in HPCC-2623 ]

      Currently the thor scripts blindly call each slave to start via ssh, that means in multislave configurations, that have a reasonable # of slaves per node, they are repeatedly calling the same sshd server to request a start.

      Apart from being inefficient, this can cause sshd issues.
      Sshd is often configured with a default 'maxstartups' of 10, meaning it will deny any more concurrent authentification attempts.

      Need to change thor start/stop scripts, so it only calls each physical node once regardless of how many slavesPerNode.

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            • Assignee:
              jakesmith Jake Smith
              Reporter:
              jakesmith Jake Smith
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