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https://issues.apache.org/jira/browse/MESOS-2595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Chen resolved MESOS-2595.
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Resolution: Fixed
commit 24415b72ef7eecfe3dd9022e5d58b6087aa10a6a
Author: Timothy Chen <[email protected]>
Date: Tue Nov 25 18:25:00 2014 -0800
Add executor for docker containerizer
Review: https://reviews.apache.org/r/29329
> Create docker executor
> ----------------------
>
> Key: MESOS-2595
> URL: https://issues.apache.org/jira/browse/MESOS-2595
> Project: Mesos
> Issue Type: Improvement
> Components: docker
> Reporter: Timothy Chen
> Assignee: Timothy Chen
>
> Currently we're reusing the command executor to wait on the progress of the
> docker executor, but has the following drawback:
> - We need to launch a seperate docker log process just to forward logs, where
> we can just simply reattach stdout/stderr if we create a specific executor
> for docker
> - In general, Mesos slave is assuming that the executor is the one starting
> the actual task. But the current docker containerizer, the containerizer is
> actually starting the docker container first then launches the command
> executor to wait on it. This can cause problems if the container failed
> before the command executor was able to launch, as slave will try to update
> the limits of the containerizer on executor registration but then the docker
> containerizer will fail to do so since the container failed.
> Overall it's much simpler to tie the container lifecycle with the executor
> and simplfies logic and log management.
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