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https://issues.apache.org/jira/browse/HADOOP-8499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413341#comment-13413341
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Aaron T. Myers commented on HADOOP-8499:
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bq. ATM, reasonable to lower the min id to 500 for the tests?
Sure, fine by me.
> Lower min.user.id to 500 for the tests
> --------------------------------------
>
> Key: HADOOP-8499
> URL: https://issues.apache.org/jira/browse/HADOOP-8499
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Attachments: HADOOP-8499.002.patch
>
>
> On Linux platforms where user IDs start at 500 rather than 1000, the build
> currently is broken. This includes CentOS, RHEL, Fedora, SuSE, and probably
> most other Linux platforms. It does happen to work on Debian and Ubuntu,
> which explains why Jenkins hasn't caught it yet.
> Other users will see something like this:
> {code}
> [INFO] Requested user cmccabe has id 500, which is below the minimum allowed
> 1000
> [INFO] FAIL: test-container-executor
> [INFO] ================================================
> [INFO] 1 of 1 test failed
> [INFO] Please report to [email protected]
> [INFO] ================================================
> [INFO] make[1]: *** [check-TESTS] Error 1
> [INFO] make[1]: Leaving directory
> `/home/cmccabe/hadoop4/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn
> -server/hadoop-yarn-server-nodemanager/target/native/container-executor'
> {code}
> And then the build fails. Since native unit tests are currently unskippable
> (HADOOP-8480) this makes the project unbuildable.
> The easy solution to this is to relax the constraint for the unit test.
> Since the unit test already writes its own configuration file, we just need
> to change it there.
> In general, I believe that it would make sense to change this to 500 across
> the board. I'm not aware of any Linuxes that create system users with IDs
> higher than or equal to 500. System user IDs tend to be below 200.
> However, if we do nothing else, we should at least fix the build by relaxing
> the constraint for unit tests.
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