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https://issues.apache.org/jira/browse/STORM-1631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15307978#comment-15307978
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ASF GitHub Bot commented on STORM-1631:
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Github user caishize commented on the pull request:
https://github.com/apache/storm/pull/1216
I’ve found that the system will be halt when there are some workers are
reboot frequently, this may be a bug of the OS，and i found this
https://bugs.centos.org/view.php?id=7538 may be the reason, i hadn’t confirm
this yet..
Darwin
On May 21, 2016, at 11:25 PM, Boyang Jerry Peng
<[email protected]<mailto:[email protected]>> wrote:
At yahoo, cgroups are used to limit both memory and cpu of every worker so
that topologies can have more resource isolation
On Saturday, May 21, 2016, Xin Wang
<[email protected]<mailto:[email protected]>> wrote:
> @yegortokmakov <https://github.com/yegortokmakov> in general, for one
> topology:
> i:woker number
> worker number < cluster node number
> worker/per node
> ii:thread number
> this depends on your logic. for example, the parallelism of KafkaSpout
> should be equal to the number of partitions, in order to get a good
> performance.
>
> btw, I really recommend you to upgrade your storm to 1.0.1.
>
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> storm CGroup bugs 1) when launching workers as the user that submitted the
> topology 2) when initial cleanup of cgroup fails
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: STORM-1631
> URL: https://issues.apache.org/jira/browse/STORM-1631
> Project: Apache Storm
> Issue Type: Bug
> Reporter: Boyang Jerry Peng
> Assignee: Boyang Jerry Peng
> Fix For: 2.0.0
>
>
> In secure multitenant storm, topology workers are launched with permission of
> the user that submitted the topology. This causes a problem with cgroups
> since workers are launched with permissions of the topology user which does
> not have permissions to modify cgroups storm is using
> Also, the clean up code is not trying to clean up cgroups of killed workers
> if the initial attempt failed
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