Răspuns: AS7 plugin: Hibernate Query Cache resource type

Thomas Segismont tsegismo at redhat.com
Tue Dec 3 17:10:42 UTC 2013


My opinion is that Query Cache resources should not be auto discovered 
whereas JMS queues should be.

Waiting for more input before taking action.

Le 29/11/2013 12:49, Michael Burman a écrit :
> Hi,
>
> Costel, on the other hand, JMS queues and their changing sizes are the
> only thing we really monitor in our environment. That's a quick way to
> find out if something is wrong, when queue's message amounts keep
> growing (or a certain service shows such behaviour).
>
> There's no silver bullet to keep just certain resources.
>
>    - Micke
>
>
> On Fri, Nov 29, 2013 at 1:17 PM, Costel Cosman <costelcsmn at yahoo.ro
> <mailto:costelcsmn at yahoo.ro>> wrote:
>
>     Hi Thomas,
>
>     I was thinking the same thing with other resources too, like the
>     EJBs, JMS queues, etc.
>
>     In our company we use RHQ to monitor production JBoss servers with a
>     lot of EJBs but no one is really interested to monitor these EJBs or
>     at least they are interested in monitoring only some of them.
>     These useless resources bring unnecessary load on both RHQ server
>     and agent. By default they are checked for the availability and have
>     some metrics enabled.
>
>     An idea would be to have a lazy discovery for these resources - at
>     request, maybe some configuration in the Connection Settings of the
>     parent resource to enable the discovery of such child resources,
>     maybe define a regexp pattern for the resource names we are
>     interested in.
>
>
>     Regards,
>     Costel
>
>
>     ------------------------------------------------------------------------
>     *De la:* Thomas Segismont <tsegismo at redhat.com
>     <mailto:tsegismo at redhat.com>>
>     *Către:* rhq-devel at lists.fedorahosted.org
>     <mailto:rhq-devel at lists.fedorahosted.org>
>     *Trimis:* Vineri, 29 Noiembrie 2013 12:27:48
>     *Subiect:* AS7 plugin: Hibernate Query Cache resource type
>
>     Hi everyone,
>
>     I fixed "Bug 1033130 - [AS7] Exception during discovery of Query Cache
>     resources of RHQ Server resource" this week.
>
>     So what? Well now if you inventory RHQ server resource you get more
>     than
>     2000 query cache resources showing up. Which of course costs you CPU
>     and
>     memory.
>
>     You can of course just ignore this resource type (via the admin pages).
>
>     So I was wondering: shouldn't we change such resource types to no
>     longer
>     auto discover them but only allow manual add?
>
>     Opinions?
>
>     Thanks,
>     Thomas
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