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https://issues.apache.org/jira/browse/YARN-4254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16640359#comment-16640359
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Hudson commented on YARN-4254:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15132 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15132/])
YARN-4254. ApplicationAttempt stuck for ever due to (jlowe: rev
9bb2801e8ce1e6298241944a65f593f555ae10e2)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceTrackerService.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestResourceTrackerService.java
> ApplicationAttempt stuck for ever due to UnknownHostException
> -------------------------------------------------------------
>
> Key: YARN-4254
> URL: https://issues.apache.org/jira/browse/YARN-4254
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: 0001-YARN-4254.patch, Logs.txt, Test.patch,
> YARN-4254.002.patch, YARN-4254.003.patch
>
>
> Scenario
> =======
> 1. RM HA and 5 NMs available in cluster and are working fine
> 2. Add one more NM to the same cluster but RM /etc/hosts not updated.
> 3. Submit application to the same cluster
> If Am get allocated to the newly added NM the *application attempt will get
> stuck for ever*.User will not get to know why the same happened.
> Impact
> 1.RM logs gets overloaded with exception
> 2.Application gets stuck for ever.
> Handling suggestion YARN-261 allows for Fail application attempt .
> If we fail the same next attempt could get assigned to another NM.
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