[jira] [Created] (MESOS-6171) Introduce "global" decision policy for unhealthy tasks.

["Alexander Rukletsov (JIRA)" <ji...@apache.org>]

Alexander Rukletsov created MESOS-6171:
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             Summary: Introduce "global" decision policy for unhealthy tasks.
                 Key: MESOS-6171
                 URL: https://issues.apache.org/jira/browse/MESOS-6171
             Project: Mesos
          Issue Type: Improvement
    Affects Versions: 1.0.0
            Reporter: Alexander Rukletsov


Currently, if the task is deemed unhealthy, i.e. it failed a health check a certain number of times, it is killed by both default executors: [command|https://github.com/apache/mesos/blob/b053572bc424478cafcd60d1bce078f5132c4590/src/launcher/executor.cpp#L299] and [docker|https://github.com/apache/mesos/blob/b053572bc424478cafcd60d1bce078f5132c4590/src/docker/executor.cpp#L315]. This is what can be called "local" kill policy.

While local kill policy can save some network traffic and unload the scheduler, there are cases, when a scheduler may want to decide what—and when—to do. This is what can be called "global" policy, i.e. the health check library reports whether a health check failed or succeeded, while the executor forwards this update to the scheduler without taking any action.



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