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https://issues.apache.org/jira/browse/CLOUDSTACK-8678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14723810#comment-14723810
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ASF GitHub Bot commented on CLOUDSTACK-8678:
--------------------------------------------
GitHub user kmccormick opened a pull request:
https://github.com/apache/cloudstack/pull/766
CLOUDSTACK-8678: Reserve RAM for KVM host OS
Use host.reserved.ram.mb agent property to modify total system RAM
before reporting to management server.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kmccormick/cloudstack CLOUDSTACK-8678
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cloudstack/pull/766.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #766
----
commit 414136637e2fd115c781e3b3d6c8d83f40191b31
Author: Kevin McCormick <kevin.mccorm...@intrinium.com>
Date: 2015-08-31T18:11:17Z
CLOUDSTACK-8678: Reserve RAM for KVM host OS
Use host.reserved.ram.mb agent property to modify total system RAM
before reporting to management server.
----
> 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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