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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2194) Cgroups cease to work in RHEL7
Date Wed, 08 Jul 2015 10:45:07 GMT

    [ https://issues.apache.org/jira/browse/YARN-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14618372#comment-14618372
] 

Hudson commented on YARN-2194:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #250 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/250/])
YARN-2194. Fix bug causing CGroups functionality to fail on RHEL7. Contributed by Wei Yan.
(vvasudev: rev c40bdb56a79fe1499c2284d493edc84620c0c078)
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/CgroupsLCEResourcesHandler.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/configuration.c
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c
* hadoop-yarn-project/CHANGES.txt
* hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestStringUtils.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestLinuxContainerExecutorWithMocks.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.java


> Cgroups cease to work in RHEL7
> ------------------------------
>
>                 Key: YARN-2194
>                 URL: https://issues.apache.org/jira/browse/YARN-2194
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.7.0
>            Reporter: Wei Yan
>            Assignee: Wei Yan
>            Priority: Critical
>             Fix For: 2.8.0
>
>         Attachments: YARN-2194-1.patch, YARN-2194-2.patch, YARN-2194-3.patch, YARN-2194-4.patch,
YARN-2194-5.patch, YARN-2194-6.patch
>
>
> In RHEL7, the CPU controller is named "cpu,cpuacct". The comma in the controller name
leads to container launch failure. 
> RHEL7 deprecates libcgroup and recommends the user of systemd. However, systemd has certain
shortcomings as identified in this JIRA (see comments). 
> This JIRA only fixes the failure, and doesn't try to use systemd.



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