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From "Alexander Rukletsov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MESOS-8942) Master streaming API does not send (health) check updates for tasks.
Date Tue, 22 May 2018 20:58:00 GMT
Alexander Rukletsov created MESOS-8942:
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             Summary: Master streaming API does not send (health) check updates for tasks.
                 Key: MESOS-8942
                 URL: https://issues.apache.org/jira/browse/MESOS-8942
             Project: Mesos
          Issue Type: Task
          Components: HTTP API
    Affects Versions: 1.6.0, 1.5.0, 1.4.1
            Reporter: Alexander Rukletsov
            Assignee: Alexander Rukletsov


Currently, Master API subscribers get task status updates when task state changes (the actual
logic is [slightly more complex|https://github.com/apache/mesos/blob/d7d7cfbc3e5609fc9a4e8de8203a6ecb11afeac7/src/master/master.cpp#L10794-L10841]).
We use task status updates to deliver health and check information to schedulers, in which
case task state does not change. Hence these updates are filtered out and the subscribers
do not get any task health updates.

Here is a test that confirms the described behaviour: https://gist.github.com/rukletsov/c079d95479fb134d137ea3ae8b7ae874



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