[ovirt-devel] RHEVM 3.2 ReST API VM memory used statistic

[Juan Hernandez]

On 05/02/2014 08:04 AM, Vikas Kokare wrote:
> In order to apply the patch, is it client side or server side(engine)
> changes or both?
> 
> -Vikas
> 

It is a quite simple server side only change:

http://gerrit.ovirt.org/#/c/24859/3/backend/manager/modules/restapi/jaxrs/src/main/java/org/ovirt/engine/api/restapi/resource/VmStatisticalQuery.java

> 
> On Wed, Apr 30, 2014 at 3:19 PM, Juan Hernandez <jhernand at redhat.com
> <mailto:jhernand at redhat.com>> wrote:
> 
>     On 04/30/2014 10:35 AM, Vikas Kokare wrote:
>     > Juan,
>     >         Is there a workaround this issue? For eg, the absolute
>     value of
>     > the statistic is correct, and hence the negative sign can be
>     ignored. I
>     > am asking this, because the upgrade to higher versions of RHEVM
>     (server
>     > and API) looks unlikely for us.
>     >
>     > -Vikas
>     >
> 
>     No, there is no workaround, and the negative value isn't correct, you
>     can't just ignore the sign. The only alternative is to apply the patch.
> 
>     If you are using oVirt then you can get the source, apply the patch, and
>     rebuild. Then you can replace the specific class, not everything. I
>     could assist you with that.
> 
>     But I guess that you are using RHEV-M, and thus you will have a support
>     contract, if you modify the binaries you will end up with an unsupported
>     configuration. I would recommend you to open a support case with Red
>     Hat, so that they can try to give you a solution, maybe a hot fix, but I
>     can't guarantee that this is possible.
> 
>     In the long term your best alternative is to upgrade.
> 
>     >
>     > On Wed, Apr 30, 2014 at 1:32 PM, Juan Hernandez
>     <jhernand at redhat.com <mailto:jhernand at redhat.com>
>     > <mailto:jhernand at redhat.com <mailto:jhernand at redhat.com>>> wrote:
>     >
>     >     On 04/30/2014 05:28 AM, Vikas Kokare wrote:
>     >     > The "memory.used" statistic on a virtual machine is returning a
>     >     negative
>     >     > value , ie.
>     >     >
>     >     > <statistic
>     >     >
>     >    
>     href="/api/vms/260f8508-2bea-4202-9b93-f8f0dcddc334/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>*-2061584303*</datum></value></values><type>GAUGE</type><unit>BYTES</unit><vm
>     >     > href="/api/vms/260f8508-2bea-4202-9b93-f8f0dcddc334"
>     >     > id="260f8508-2bea-4202-9b93-f8f0dcddc334"/></statistic>
>     >     >
>     >     > by the RHEVM 3.2 ReST API.
>     >     > while, in the Web Administration Console, memory consumption
>     for the
>     >     > same VM, shows a positive percentage value.
>     >     >
>     >     > Is this an issue with the ReST API?
>     >     >
>     >
>     >     Yes it is a known issue, and was solved in 3.3.4 and 3.4.0:
>     >
>     >     https://bugzilla.redhat.com/1068884
>     >
> 
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> 
> 
> 
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