4:08 p.m.
Hi Nir -
Thanks for getting back to me. Will the patch to 3.6 be backported to 3.5?
As you can tell from the images, it takes days and days for it to increase
over time. I also wasnt sure if that was the right bug because VDSM memory
shows normal from top ...
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5134 vdsm 0 -20 4368m 111m 10m S 2.0 0.3 3709:28 vdsm
Res is only 111M. This is from node1 which is showing currently 20GB of
32GB used with only 2 VMs running on it - 1 with 4G and another with ~1 GB
of RAM configured
The images are from nagios and the value here is a direct correlation to
what you would see in the free command output. See below from an example of
node 1 and node 2
[compute[root@node1 ~]$ free
total used free shared buffers cached
Mem: 32765316 20318156 12447160 252 30884 628948
-/+ buffers/cache: 19658324 13106992
Swap: 19247100 0 19247100
[compute[root@node1 ~]$ free -m
total used free shared buffers cached
Mem: 31997 19843 12153 0 30 614
-/+ buffers/cache: 19199 12798
Swap: 18795 0 18795
And its correlated image http://i.imgur.com/PZLEgyx.png (~19GB used)
And as a control, node 2 that I just restarted today
[compute[root@node2 ~]$ free
total used free shared buffers cached
Mem: 32765316 1815324 30949992 212 35784 717320
-/+ buffers/cache: 1062220 31703096
Swap: 19247100 0 19247100
[compute[root@node2 ~]$ free -m
total used free shared buffers cached
Mem: 31997 1772 30225 0 34 700
-/+ buffers/cache: 1036 30960
Swap: 18795 0 18795
And its correlated image http://i.imgur.com/8ldPVqY.png (~2GB used). Note
how 1772 in the image is exactly what is registered under 'used' in free
command
On Fri, Jan 22, 2016 at 3:59 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
On Fri, Jan 22, 2016 at 9:25 PM, Charles Kozler
<charles(a)fixflyer.com>
wrote:
> Here is a screenshot of my three nodes and their increased memory usage
over
> 30 days. Note that node #2 had 1 single VM that had 4GB of RAM assigned
to
> it. I had since shut it down and saw no memory reclamation occur.
Further, I
> flushed page caches and inodes and ran 'sync'. I tried everything but
> nothing brought the memory usage down. vdsm was low too (couple hundred
MB)
Note that there is an old leak in vdsm, will be fixed in next 3.6 build:
https://bugzilla.redhat.com/1269424
> and there was no qemu-kvm process running so I'm at a loss
>
> http://imgur.com/a/aFPcK
>
> Please advise on what I can do to debug this. Note I have restarted node
2
> (which is why you see the drop) to see if it raises in memory use over
tim
> even with no VM's running
Not sure what is "memory" that you show in the graphs. Theoretically this
may be
normal memory usage, Linux using free memory for the buffer cache.
Can you instead show the output of "free", during one day, maybe run once
per hour?
You may also like to install sysstat for collecting and monitoring
resources usage.
>
> [compute[root@node2 log]$ rpm -qa | grep -i ovirt
> libgovirt-0.3.2-1.el6.x86_64
> ovirt-release35-006-1.noarch
> ovirt-hosted-engine-ha-1.2.8-1.el6.noarch
> ovirt-hosted-engine-setup-1.2.6.1-1.el6.noarch
> ovirt-engine-sdk-python-3.5.6.0-1.el6.noarch
> ovirt-host-deploy-1.3.2-1.el6.noarch
>
>
> --
>
> Charles Kozler
> Vice President, IT Operations
>
> FIX Flyer, LLC
> 225 Broadway | Suite 1600 | New York, NY 10007
> 1-888-349-3593
> http://www.fixflyer.com
>
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--
*Charles Kozler*
*Vice President, IT Operations*
FIX Flyer, LLC
225 Broadway | Suite 1600 | New York, NY 10007
1-888-349-3593
http://www.fixflyer.com <http://fixflyer.com>
NOTICE TO RECIPIENT: THIS E-MAIL IS MEANT ONLY FOR THE INTENDED
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