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https://issues.apache.org/jira/browse/YARN-5258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15824582#comment-15824582
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Shane Kumpf commented on YARN-5258:
-----------------------------------
Sorry for the very late response here. Overall, this looks great. Thanks
[~templedf] for putting this together!
1)
{code}
When the LCE launches YARN a container to execute in a Docker container, the
application can specify the Docker images to be used with that YARN container.
{code}
It seems removing the first occurrence of YARN would make this clearer, or
consider shortening.
2)
{code}
In order to launch Docker containers, the Docker daemon be running on all
NodeManager hosts where Docker containers will be launched.
{code}
"...the Docker daemon *must* be running..."
3)
{code}
Note that the Java and Hadoop versions must be compatible with what’s installed
on the cluster.
{code}
I'm not sure what this means exactly. Can you help clarify a bit in the docs?
4) Connecting to a Secure Docker Repository - Unfortunately, I don't believe
the default of $HOME/.docker/config.json will work in the implicit pull
scenario. It seems $HOME is not expanded in container-executor when running the
Docker client commands. Given this, we should advise that it is necessary to
pre-pull images from private registries and that implicit pulls from private
registries are not supported without YARN-5428.
> Document Use of Docker with LinuxContainerExecutor
> --------------------------------------------------
>
> Key: YARN-5258
> URL: https://issues.apache.org/jira/browse/YARN-5258
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: documentation
> Affects Versions: 2.8.0
> Reporter: Daniel Templeton
> Assignee: Daniel Templeton
> Priority: Critical
> Labels: oct16-easy
> Attachments: YARN-5258.001.patch, YARN-5258.002.patch,
> YARN-5258.003.patch, YARN-5258.004.patch
>
>
> There aren't currently any docs that explain how to configure Docker and all
> of its various options aside from reading all of the JIRAs. We need to
> document the configuration, use, and troubleshooting, along with helpful
> examples.
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