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From "Shane Kumpf (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5366) Add support for toggling the removal of completed and failed docker containers
Date Mon, 29 Aug 2016 12:39:21 GMT

    [ https://issues.apache.org/jira/browse/YARN-5366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15445751#comment-15445751

Shane Kumpf commented on YARN-5366:

The latest patch fixes the test failures. As previously mentioned, the checkstyle error is
related to the package length.

Regarding the patch, {{DockerLinuxContainerRuntime#signalContainer}} now implements the logic
called out above to properly handle reacquiring, stopping, and removing docker containers.
{{DockerContainerStatusHandler}} was added to encompass the state of a docker container, such
as running, stopped, exited, etc. A new constructor was added to {{DockerLinuxContainerRuntime}}
that allows for injecting a {{DockerContainerStatusHandler}} for testing purposes. Common
docker operations were refactored into {{DockerCommandExecutor}} to make it more consistent
on how docker operations are performed, however, refactoring all places where docker commands
are called has not been completed. I will open another issue to do that refactoring work.

So two additional issues should be opened. If others agree, I'll get these opened.
* Remove package length from the checkstyle rules.
* Refactor existing code and tests to leverage {{DockerCommandExecutor}}

I believe this patch is ready for review.

> Add support for toggling the removal of completed and failed docker containers
> ------------------------------------------------------------------------------
>                 Key: YARN-5366
>                 URL: https://issues.apache.org/jira/browse/YARN-5366
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>            Reporter: Shane Kumpf
>            Assignee: Shane Kumpf
>         Attachments: YARN-5366.001.patch, YARN-5366.002.patch
> Currently, completed and failed docker containers are removed by container-executor.
Add a job level environment variable to DockerLinuxContainerRuntime to allow the user to toggle
whether they want the container deleted or not and remove the logic from container-executor.

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