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Posted to solr-user@lucene.apache.org by Dmitry Kan <dm...@gmail.com> on 2011/12/21 10:56:19 UTC
a question on jmx solr exposure
Hello list,
This might be not the right place to ask the jmx specific questions, but I
decided to try, as we are polling SOLR statistics through jmx.
We currently have two solr cores with different schemas A and B being run
under the same tomcat instance. Question is: which stat is jconsole going
to see under solr/ ?
>From the numbers (e.g. numDocs of searcher), jconsole see the stats of A.
Where do stats of B go? Or is firstly activated core will capture the jmx
"pipe" and won't let B's stats to go through?
--
Regards,
Dmitry Kan
Re: a question on jmx solr exposure
Posted by Chris Hostetter <ho...@fucit.org>.
: > > Well, we don't use multicore feature of SOLR, so in our case SOLR
: > instances
: > > are just separate web-apps. The web-app loading order probably then
: > affects
: > > on which app gets hold of a jmx 'pipe'.
A feature was added in SOLR-1843 specificly to help address this potential
collision, by allowing you to override the "rootName" used in your <jmx />
declaration (by default it's "solr/${corename}") but looking at the issue
now i see it was only committed to trunk...
https://issues.apache.org/jira/browse/SOLR-1843
...even though this looks like a fairly straight forward candidate to
merge back to 3x. i'll look into it.
-Hoss
Re: a question on jmx solr exposure
Posted by Dmitry Kan <dm...@gmail.com>.
That's absolutely right. Thanks for the suggestion.
On Thu, Dec 29, 2011 at 2:47 PM, Gora Mohanty <go...@mimirtech.com> wrote:
> On Thu, Dec 29, 2011 at 6:15 PM, Dmitry Kan <dm...@gmail.com> wrote:
> > Well, we don't use multicore feature of SOLR, so in our case SOLR
> instances
> > are just separate web-apps. The web-app loading order probably then
> affects
> > on which app gets hold of a jmx 'pipe'.
> > We should probably start using the feature to collect stats from
> different
> > cores at the same time. Thanks.
>
> But, as I pointed out earlier, you should still have a different
> solrconfig.xml file for each web app, and thus should be able
> to set up JMX differently for each.
>
> Regards,
> Gora
>
--
Regards,
Dmitry Kan
Re: a question on jmx solr exposure
Posted by Gora Mohanty <go...@mimirtech.com>.
On Thu, Dec 29, 2011 at 6:15 PM, Dmitry Kan <dm...@gmail.com> wrote:
> Well, we don't use multicore feature of SOLR, so in our case SOLR instances
> are just separate web-apps. The web-app loading order probably then affects
> on which app gets hold of a jmx 'pipe'.
> We should probably start using the feature to collect stats from different
> cores at the same time. Thanks.
But, as I pointed out earlier, you should still have a different
solrconfig.xml file for each web app, and thus should be able
to set up JMX differently for each.
Regards,
Gora
Re: a question on jmx solr exposure
Posted by Dmitry Kan <dm...@gmail.com>.
Well, we don't use multicore feature of SOLR, so in our case SOLR instances
are just separate web-apps. The web-app loading order probably then affects
on which app gets hold of a jmx 'pipe'.
We should probably start using the feature to collect stats from different
cores at the same time. Thanks.
On Thu, Dec 29, 2011 at 2:21 PM, Alexey Serba <as...@gmail.com> wrote:
> Which Solr version do you use? Maybe it has something to do with
> default collection?
>
> I do see separate jmx domain for every collection, i.e.
>
> solr/collection1
> solr/collection2
> solr/collection3
> ...
>
> On Wed, Dec 21, 2011 at 1:56 PM, Dmitry Kan <dm...@gmail.com> wrote:
> > Hello list,
> >
> > This might be not the right place to ask the jmx specific questions, but
> I
> > decided to try, as we are polling SOLR statistics through jmx.
> >
> > We currently have two solr cores with different schemas A and B being run
> > under the same tomcat instance. Question is: which stat is jconsole going
> > to see under solr/ ?
> >
> > From the numbers (e.g. numDocs of searcher), jconsole see the stats of A.
> > Where do stats of B go? Or is firstly activated core will capture the jmx
> > "pipe" and won't let B's stats to go through?
> >
> > --
> > Regards,
> >
> > Dmitry Kan
>
--
Regards,
Dmitry Kan
Re: a question on jmx solr exposure
Posted by Alexey Serba <as...@gmail.com>.
Which Solr version do you use? Maybe it has something to do with
default collection?
I do see separate jmx domain for every collection, i.e.
solr/collection1
solr/collection2
solr/collection3
...
On Wed, Dec 21, 2011 at 1:56 PM, Dmitry Kan <dm...@gmail.com> wrote:
> Hello list,
>
> This might be not the right place to ask the jmx specific questions, but I
> decided to try, as we are polling SOLR statistics through jmx.
>
> We currently have two solr cores with different schemas A and B being run
> under the same tomcat instance. Question is: which stat is jconsole going
> to see under solr/ ?
>
> From the numbers (e.g. numDocs of searcher), jconsole see the stats of A.
> Where do stats of B go? Or is firstly activated core will capture the jmx
> "pipe" and won't let B's stats to go through?
>
> --
> Regards,
>
> Dmitry Kan
Re: a question on jmx solr exposure
Posted by Dmitry Kan <dm...@gmail.com>.
Solved by exposing jmx only on one of the cores, as it is of a more
interest than the other one.
Dmitry
On Wed, Dec 21, 2011 at 11:56 AM, Dmitry Kan <dm...@gmail.com> wrote:
> Hello list,
>
> This might be not the right place to ask the jmx specific questions, but I
> decided to try, as we are polling SOLR statistics through jmx.
>
> We currently have two solr cores with different schemas A and B being run
> under the same tomcat instance. Question is: which stat is jconsole going
> to see under solr/ ?
>
> From the numbers (e.g. numDocs of searcher), jconsole see the stats of A.
> Where do stats of B go? Or is firstly activated core will capture the jmx
> "pipe" and won't let B's stats to go through?
>
> --
> Regards,
>
> Dmitry Kan
>
Re: a question on jmx solr exposure
Posted by Gora Mohanty <go...@mimirtech.com>.
On Wed, Dec 21, 2011 at 3:26 PM, Dmitry Kan <dm...@gmail.com> wrote:
> Hello list,
>
> This might be not the right place to ask the jmx specific questions, but I
> decided to try, as we are polling SOLR statistics through jmx.
>
> We currently have two solr cores with different schemas A and B being run
> under the same tomcat instance. Question is: which stat is jconsole going
> to see under solr/ ?
[...]
Have not tried this, but each core has a separate solrconfig.xml.
Thus, you could specify a different JMX setup for each, e.g., by
changing the name, or port.
Regards,
Gora