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  1. Mesos
  2. MESOS-295

Allow new masters to have better understanding of cluster state

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Critical
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: 0.19.0
    • Component/s: None
    • Labels:

      Description

      If a new master becomes elected, it will only have knowledge of the current state of the cluster. This can lead to a situation where tasks become lost but aren't properly killed. For instance:

      1) A set of machines (perhaps a datacenter rack) lose network connectivity and their tasks are marked LOST by the master. However, they're still running.
      2) Through a potentially unrelated situation, there is a master failover to a new master
      3) The network connection to the machines come back up
      4) These slaves never killed their tasks (and they shouldn't if they can't talk to a master)
      5) Tasks stay running and aren't killed, taking up resources and running outside the scope of the new master

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              • Assignee:
                bmahler Benjamin Mahler
                Reporter:
                yasumoto Joe Smith
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                • Created:
                  Updated:
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