[Users] Memory usage

[René Koch]

On Wed, 2014-02-12 at 15:14 +0100, Koen Vanoppen wrote:
> In The GUI, it says it's using 25% of the memory.


I guess it's the real value, right?
The same happened for the memcached vm, someone reported to me -
negative value in REST-API, but correct graph in oVirt webadmin GUI.

I fear I have no idea how this can happen - so maybe someone else can
help you troubleshoot this issue.
> 
> 
> 
> 2014-02-12 15:10 GMT+01:00 Koen Vanoppen <vanoppen.koen at gmail.com>:
>         Thanks for the quick respons, but there is no memcached
>         running on that VM.
>         
>         
>         Kind regards
>         
>         
>         
>         2014-02-12 15:06 GMT+01:00 René Koch <rkoch at linuxland.at>:
>         
>                 On Wed, 2014-02-12 at 14:55 +0100, Koen Vanoppen
>                 wrote:
>                 > Dear all,
>                 >
>                 >
>                 > When we monitor one of our machines, we noticed that
>                 there was one vm
>                 > that was constantly giving a error of memory usage.
>                 But when we took a
>                 > look at it, there is actually nothing wrong with it.
>                 Now we looked
>                 > furhter then that. We looked at the API of the
>                 machine and noticed
>                 > something very strange:
>                 >
>                 > <statistic
>                 >
>                 href="/api/vms/3b9aa245-75ff-42e8-b921-1c9ce61826bf/statistics/b7499508-c1c3-32f0-8174-c1783e57bb08" id="b7499508-c1c3-32f0-8174-c1783e57bb08"><name>memory.used</name><description>Memory used (agent)</description><values type="INTEGER"><value><datum>-944892806</datum></value></values><type>GAUGE</type><unit>BYTES</unit>
>                 >
>                 >
>                 > It's a negative...
>                 
>                 
>                 
>                 Do you have memcached running in this vm?
>                 
>                 I heard about this issue with memcached, but never
>                 tested memcached in
>                 my oVirt environment. You get the real usage value
>                 with
>                 memory.used = memory.installed + memory.used
>                 
>                 
>                 Regards,
>                 René
>                 
>                 >
>                 >
>                 > What could be the problem?
>                 >
>                 >
>                 > Kind regards,
>                 >
>                 > koen
>                 >
>                 
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>                 
>                 
>         
>         
> 
>