Hi Paul, There are lots of people/companies using SPM for Solr/SolrCloud and I don't recall anyone saying SPM agent collecting metrics via JMX had a negative impact on Solr performance. That said, some people really dislike JMX and some open source projects choose to expose metrics via custom stats APIs or even files.
Otis -- Performance Monitoring * Log Analytics * Search Analytics Solr & Elasticsearch Support * http://sematext.com/ On Wed, Aug 6, 2014 at 11:18 PM, Paul Libbrecht <p...@hoplahup.net> wrote: > Hello Otis, > > this looks like an excellent idea! > I'm in need of that, erm… last week and probably this one too. > > Is there not a risk that reading certain JMX properties actually hogs the > process? (or is it by design that MBeans are supposed to be read without > any lock effect?). > > thanks for the hint. > > paul > > > > On 6 mai 2014, at 04:43, Otis Gospodnetic <otis.gospodne...@gmail.com> > wrote: > > > Alexandre, you could use something like > > http://blog.sematext.com/2012/09/25/new-tool-jmxc-jmx-console/ to > quickly > > dump everything out of JMX and see if there is anything there Solr Admin > UI > > doesn't expose. I think you'll find there is more in JMX than Solr Admin > > UI shows. > > > > Otis > > -- > > Performance Monitoring * Log Analytics * Search Analytics > > Solr & Elasticsearch Support * http://sematext.com/ > > > > > > On Mon, May 5, 2014 at 1:56 AM, Alexandre Rafalovitch < > arafa...@gmail.com>wrote: > > > >> Thank you everybody for the links and explanations. > >> > >> I am still curious whether JMX exposes more details than the Admin UI? > >> I am thinking of a troubleshooting context, rather than long-term > >> monitoring one. > >> > >> Regards, > >> Alex. > >> Personal website: http://www.outerthoughts.com/ > >> Current project: http://www.solr-start.com/ - Accelerating your Solr > >> proficiency > >> > >> > >> On Mon, May 5, 2014 at 12:21 PM, Gora Mohanty <g...@mimirtech.com> > wrote: > >>> On May 5, 2014 7:09 AM, "Alexandre Rafalovitch" <arafa...@gmail.com> > >> wrote: > >>>> > >>>> I have religiously kept <jmx> statement in my solrconfig.xml, thinking > >>>> it was enabling the web interface statistics output. > >>>> > >>>> But looking at the server logs really closely, I can see that JMX is > >>>> actually disabled without server present. And the Admin UI does not > >>>> actually seem to care after a quick test. > >>>> > >>>> Does anybody have a real experience with Solr JMX? Does it expose more > >>>> information than Admin UI's Plugins/Stats page? Is it good for > >>>> > >>> > >>> Have not been using JMX lately, but we were using it in the past. It > does > >>> allow monitoring many useful details. As others have commented, it also > >>> integrates well with other monitoring tools as JMX is a standard. > >>> > >>> Regards, > >>> Gora > >> > >
