Jay Buffington created MESOS-1726:
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Summary: docker containerizer fails when container exits quickly
Key: MESOS-1726
URL: https://issues.apache.org/jira/browse/MESOS-1726
Project: Mesos
Issue Type: Bug
Components: containerization
Reporter: Jay Buffington
There is a race condition in the docker containerizer code that can usually be
reproduced by running a command that exits quickly (for example, true) inside
of a docker container. You will see the error "Unable to get executor pid
after launch” in the logs and the master will get a {{TASK_LOST}}.
This race is between "docker inspect” and the process running inside the
container. When the processes inside the container exits (successful or not)
before docker inspect runs docker inspect will return a Pid of 0. When the pid
is zero the {{Docker::Container::create}} method will set the pid to an empty
{{Option<pid_t>}}. This will cause the {{____launch}} method to return a
{{Failure()}}.
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