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Date: Tue, 1 Sep 2015 17:50:48 +0000 (UTC)
From: "ASF GitHub Bot (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CLOUDSTACK-8678) OOM Kills Guests
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    [ https://issues.apache.org/jira/browse/CLOUDSTACK-8678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14725772#comment-14725772 ] 

ASF GitHub Bot commented on CLOUDSTACK-8678:
--------------------------------------------

Github user kmccormick commented on the pull request:

    https://github.com/apache/cloudstack/pull/766#issuecomment-136810812
  
    OK, reworked this a bit. Removed dom0ram and using only _dom0MinMem now.
    
    This line should cause a 1GB default if the value isn't specified in the file:
    _dom0MinMem = NumbersUtil.parseInt(value, 1024) * 1024 * 1024L;
    
    No longer doing the odd min/max calculation, just using either the fixed default or the admin specified value.


> OOM Kills Guests
> ----------------
>
>                 Key: CLOUDSTACK-8678
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8678
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Hypervisor Controller, KVM
>    Affects Versions: 4.4.2
>         Environment: Intel Xeon Quad Core CPU L5520 @ 2.27GHz
> 98 GB RAM
> Ubuntu 14.04
> Running Cloustack 4.4.2
>            Reporter: Josh Harshman
>            Assignee: Daan Hoogland
>            Priority: Critical
>
> We have several KVM nodes running Cloudstack 4.4.2. Sometimes an instance with X amount of RAM provisioned will be started on a host that has X+a small amount of RAM free. The kernel OOM killer will eventually kill off the instance. Has anyone else seen this behavior, is there a way to reserve RAM for use by the host instead of by Cloudstack? Looking at the numbers in the database and the logs, Cloudstack is trying to use 100% of the RAM on the host.
> Any thoughts would be appreciated.
> Thank you,


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