[jira] [Updated] (MESOS-1178) Only enable the oom killer if it's not enabled

["Ian Downes (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-1178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ian Downes updated MESOS-1178:
------------------------------

    Fix Version/s: 0.19.0

> Only enable the oom killer if it's not enabled
> ----------------------------------------------
>
>                 Key: MESOS-1178
>                 URL: https://issues.apache.org/jira/browse/MESOS-1178
>             Project: Mesos
>          Issue Type: Bug
>          Components: isolation
>    Affects Versions: 0.17.0, 0.18.0
>            Reporter: Ian Downes
>            Assignee: Ian Downes
>            Priority: Minor
>             Fix For: 0.19.0
>
>
> When the cgroups memory isolator is used Mesos will always try to enable the kernel oom killer by writing 0 to the memory.oom_control file. This will fail if memory.use_hierarchy is enabled on a parent cgroup, *even* if the oom killer is already enabled.
> We should attempt to enable the oom killer only if it is not enabled.
> This was observed on a Fedora 20 box which had memory.use_hierarchy enabled.



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