[jira] [Created] (MESOS-8417) Mesos can get "stuck" when a Process throws an exception.

["Benjamin Mahler (JIRA)" <ji...@apache.org>]

Benjamin Mahler created MESOS-8417:
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             Summary: Mesos can get "stuck" when a Process throws an exception.
                 Key: MESOS-8417
                 URL: https://issues.apache.org/jira/browse/MESOS-8417
             Project: Mesos
          Issue Type: Bug
          Components: libprocess
            Reporter: Benjamin Mahler
            Assignee: Benjamin Mahler


When a {{Process}} throws an exception, we log it, terminate the throwing {{Process}}, and continue to run. However, currently there exists no known user-level code that I'm aware of that handles the unexpected termination due to an uncaught exception.

Generally, this means that when an exception is thrown (e.g. a bad call to {{std::map::at}}), the {{Process}} terminates with a log message but things get "stuck" and the user has to debug what is wrong / kill the process.

Libprocess would likely need to provide some primitives to better support handling unexpected termination of a {{Process}} in order for us to provide a strategy where we continue running.

In the short term, it would be prudent to abort libprocess if any {{Process}} throws an exception so that users can observe the issue and we can get it fixed.



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