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From "Alexander Rukletsov (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (MESOS-8247) Executor registered message is lost
Date Mon, 12 Mar 2018 15:00:00 GMT

     [ https://issues.apache.org/jira/browse/MESOS-8247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexander Rukletsov reassigned MESOS-8247:
------------------------------------------

    Assignee:     (was: Andrei Budnik)

> Executor registered message is lost
> -----------------------------------
>
>                 Key: MESOS-8247
>                 URL: https://issues.apache.org/jira/browse/MESOS-8247
>             Project: Mesos
>          Issue Type: Bug
>            Reporter: Andrei Budnik
>            Priority: Major
>
> h3. Brief description of successful agent-executor communication.
> Executor sends `RegisterExecutorMessage` message to Agent during initialization step.
Agent sends a `ExecutorRegisteredMessage` message as a response to the Executor in `registerExecutor()`
method. Whenever executor receives `ExecutorRegisteredMessage`, it prints a `Executor registered
on agent...` to stderr logs.
> h3. Problem description.
> The agent launches built-in docker executor, which is stuck in `STAGING` state.
> stderr logs of the docker executor:
> {code}
> I1114 23:03:17.919090 14322 exec.cpp:162] Version: 1.2.3
> {code}
> It doesn't contain a message like `Executor registered on agent...`. At the same time
agent received `RegisterExecutorMessage` and sent `runTask` message to the executor.
> stdout logs consists of the same repeating message:
> {code}
> Received killTask for task ...
> {code}
> Also, the docker executor process doesn't contain child processes.
> Currently, executor [doesn't attempt|https://github.com/apache/mesos/blob/2a253093ecdc7d743c9c0874d6e01b68f6a813e4/src/exec/exec.cpp#L320]
to launch a task if it is not registered at the agent, while [task killing|https://github.com/apache/mesos/blob/2a253093ecdc7d743c9c0874d6e01b68f6a813e4/src/exec/exec.cpp#L343]
doesn't have such a check.
> It looks like `ExecutorRegisteredMessage` has been lost.



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