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https://issues.apache.org/jira/browse/HADOOP-16849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17034968#comment-17034968
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Akira Ajisaka commented on HADOOP-16849:
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LGTM, +1 pending Jenkins.
Numeric uid is always treated as uid.
Ref: https://github.com/opencontainers/runc/pull/708
> start-build-env.sh behaves incorrectly when username is numeric only
> --------------------------------------------------------------------
>
> Key: HADOOP-16849
> URL: https://issues.apache.org/jira/browse/HADOOP-16849
> Project: Hadoop Common
> Issue Type: Bug
> Components: build
> Reporter: Jihyun Cho
> Priority: Minor
> Attachments: userid.patch
>
>
> When username is numaric only, the build environment does not run correctly.
> Here is my case.
> {noformat}
> ~/hadoop$ ./start-build-env.sh
> ...
> Successfully tagged hadoop-build-1649860140:latest
> _ _ _ ______
> | | | | | | | _ \
> | |_| | __ _ __| | ___ ___ _ __ | | | |_____ __
> | _ |/ _` |/ _` |/ _ \ / _ \| '_ \ | | | / _ \ \ / /
> | | | | (_| | (_| | (_) | (_) | |_) | | |/ / __/\ V /
> \_| |_/\__,_|\__,_|\___/ \___/| .__/ |___/ \___| \_(_)
> | |
> |_|
> This is the standard Hadoop Developer build environment.
> This has all the right tools installed required to build
> Hadoop from source.
> I have no name!@fceab279f8d1:~/hadoop$ whoami
> whoami: cannot find name for user ID 1112533
> I have no name!@fceab279f8d1:~/hadoop$ sudo ls
> sudo: unknown uid 1112533: who are you?
> {noformat}
> I changed {{USER_NAME}} to {{USER_ID}} in the script. Then it worked
> correctly.
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