[
https://issues.apache.org/jira/browse/YARN-5040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16933167#comment-16933167
]
yinghua_zh commented on YARN-5040:
----------------------------------
I also encountered the same problem. When CGroup is enabled and a big task is
running, after a period of time, the operating system kernel crash, My version
information is as follows:
Hadoop:2.7.2
OS: CentOS Linux release 7.3.1611
OS kernel: 3.10.0-514.el7.x86_64
How did you solve the problem?[~vvasudev] [~sidharta-s] [~Tao Jie] [~ecwpp] @
> CPU Isolation with CGroups triggers kernel panics on Centos 7.1/7.2 when
> yarn.nodemanager.resource.percentage-physical-cpu-limit < 100
> --------------------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-5040
> URL: https://issues.apache.org/jira/browse/YARN-5040
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.9.0
> Reporter: Sidharta Seethana
> Assignee: Varun Vasudev
> Priority: Major
>
> /cc [~vvasudev]
> We have been running some benchmarks internally with resource isolation
> enabled. We have consistently run into kernel panics when running a large job
> ( a large pi job, terasort ). These kernel panics wen't away when we set
> yarn.nodemanager.resource.percentage-physical-cpu-limit=100 . Anything less
> than 100 triggers different behavior in YARN's CPU resource handler which
> seems to cause these issues. Looking at the kernel crash dumps, the
> backtraces were different - sometimes pointing to java processes, sometimes
> not.
> Kernel versions used : 3.10.0-229.14.1.el7.x86_64 and
> 3.10.0-327.13.1.el7.x86_64 .
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org
