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https://issues.apache.org/jira/browse/YARN-9025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16710819#comment-16710819
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Hudson commented on YARN-9025:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15567 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15567/])
YARN-9025. TestFairScheduler#testChildMaxResources is flaky. (haibochen: rev
5d4a432660abbb42303965df9a80097897389e66)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java
> TestFairScheduler#testChildMaxResources is flaky
> ------------------------------------------------
>
> Key: YARN-9025
> URL: https://issues.apache.org/jira/browse/YARN-9025
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 3.3.0
> Reporter: Szilard Nemeth
> Assignee: Szilard Nemeth
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: YARN-9025.001.patch, YARN-9025.002.patch
>
>
> During making the code patch for YARN-8059, I come across a flaky test, see
> this link:
> https://builds.apache.org/job/PreCommit-YARN-Build/22412/artifact/out/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
> This is the error message:
> {code:java}
> [ERROR] Tests run: 108, Failures: 1, Errors: 0, Skipped: 0, Time elapsed:
> 19.37 s <<< FAILURE! - in
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.TestFairScheduler
> [ERROR]
> testChildMaxResources(org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.TestFairScheduler)
> Time elapsed: 0.164 s <<< FAILURE!
> java.lang.AssertionError: App 1 is not running with the correct number of
> containers expected:<2> but was:<0>
> at org.junit.Assert.fail(Assert.java:88){code}
> So the thing is, even if we had 8 node updates, due to the nature of how we
> handle the events, it can happen that no container is allocated for the
> application.
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