[jira] [Reopened] (YARN-2194) Cgroups cease to work in RHEL7

[Jonathan Hung (JIRA)]

 [ 
https://issues.apache.org/jira/browse/YARN-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jonathan Hung reopened YARN-2194:
-

> 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, 3.0.0-alpha1
>
> 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, YARN-2194-7.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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[jira] [Reopened] (YARN-2194) Cgroups cease to work in RHEL7

[Sidharta Seethana (JIRA)]

 [ 
https://issues.apache.org/jira/browse/YARN-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sidharta Seethana reopened YARN-2194:
-

[~ywskycn] , [~vvasudev]

So, it looks like the final version of the patch that was eventually committed 
didn't actually go through jenkins ( wasn't submitted to jenkins or something 
else went wrong during submission ). There seems to be a test failing that 
needs to be fixed ( see below ) 

{code}
testSquashCGroupOperationsWithValidOperations(org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.TestPrivilegedOperationExecutor)
  Time elapsed: 0.178 sec   FAILURE!
org.junit.ComparisonFailure: 
expected:...n/container_01/tasks[,net_cls/hadoop_yarn/container_01/tasks,]blkio/hadoop_yarn/co...
 but 
was:...n/container_01/tasks[%net_cls/hadoop_yarn/container_01/tasks%]blkio/hadoop_yarn/co...
at org.junit.Assert.assertEquals(Assert.java:115)
at org.junit.Assert.assertEquals(Assert.java:144)
at 
org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.TestPrivilegedOperationExecutor.testSquashCGroupOperationsWithValidOperations(TestPrivilegedOperationExecutor.java:225)
{code}

thanks,
-Sidharta

 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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