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https://issues.apache.org/jira/browse/YARN-7654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16409923#comment-16409923
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Eric Yang commented on YARN-7654:
---------------------------------
[~jlowe] YARN-6830 appears to focus on Java side of serialization. It may take
a while to settle. I don't think we want to make YARN-6830 a pre-requisite of
this jira to introduce extra delays. For now, environment key/value pair are
delimited by pipe character, and replaced to = prior to docker launch. I think
this is the least intrusive approach to solve environment variable delimiter in
.cmd file for now with some extra comments to indicate future fix to make this
better by changing .cmd file format to JSON.
> Support ENTRY_POINT for docker container
> ----------------------------------------
>
> Key: YARN-7654
> URL: https://issues.apache.org/jira/browse/YARN-7654
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn
> Affects Versions: 3.1.0
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Blocker
> Attachments: YARN-7654.001.patch, YARN-7654.002.patch,
> YARN-7654.003.patch, YARN-7654.004.patch
>
>
> Docker image may have ENTRY_POINT predefined, but this is not supported in
> the current implementation. It would be nice if we can detect existence of
> {{launch_command}} and base on this variable launch docker container in
> different ways:
> h3. Launch command exists
> {code}
> docker run [image]:[version]
> docker exec [container_id] [launch_command]
> {code}
> h3. Use ENTRY_POINT
> {code}
> docker run [image]:[version]
> {code}
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