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Posted to issues@mesos.apache.org by "Neil Conway (JIRA)" <ji...@apache.org> on 2016/12/15 20:56:58 UTC

[jira] [Created] (MESOS-6805) Check unreachable task cache for task ID collisions on launch

Neil Conway created MESOS-6805:
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             Summary: Check unreachable task cache for task ID collisions on launch
                 Key: MESOS-6805
                 URL: https://issues.apache.org/jira/browse/MESOS-6805
             Project: Mesos
          Issue Type: Bug
          Components: master
            Reporter: Neil Conway
            Assignee: Neil Conway


As discussed in MESOS-6785, it is possible to crash the master by launching a task that reuses the ID of an unreachable/partitioned task. A complete solution to this problem will be quite involved, but an incremental improvement is easy: when we see a task launch operation, reject the launch attempt if the task ID collides with an ID in the per-framework {{unreachableTasks}} cache. This doesn't catch all situations in which IDs are reused, but it is better than nothing.



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