Hello Prabhu, Look at SPM for Solr (URL in sig below). It includes Index Statistics graphs, and from these graphs you can tell:
* how many docs are in your index * how many docs are deleted * size of index on disk * number of index segments * number of index files * maybe something else I'm forgetting now So from size, # of segments, and index files you will be able to tell when merges happened and before/after size, segment and index file count. Otis ---- Performance Monitoring for Solr / ElasticSearch / HBase - http://sematext.com/spm >________________________________ > From: "Prakashganesh, Prabhu" <prabhu.prakashgan...@dowjones.com> >To: "solr-user@lucene.apache.org" <solr-user@lucene.apache.org>; Otis >Gospodnetic <otis_gospodne...@yahoo.com> >Sent: Wednesday, May 2, 2012 7:22 AM >Subject: RE: Solr Merge during off peak times > >Ok, thanks Otis >Another question on merging >What is the best way to monitor merging? >Is there something in the log file that I can look for? >It seems like I have to monitor the system resources - read/write IOPS etc.. >and work out when a merge happened >It would be great if I can do it by looking at log files or in the admin UI. >Do you know if this can be done or if there is some tool for this? > >Thanks >Prabhu > >-----Original Message----- >From: Otis Gospodnetic [mailto:otis_gospodne...@yahoo.com] >Sent: 01 May 2012 15:12 >To: solr-user@lucene.apache.org >Subject: Re: Solr Merge during off peak times > >Hi Prabhu, > >I don't think such a merge policy exists, but it would be nice to have this >option and I imagine it wouldn't be hard to write if you really just base the >merge or no merge decision on the time of day (and maybe day of the week). > >Note that this should go into Lucene, not Solr, so if you decide to contribute >your work, please see http://wiki.apache.org/lucene-java/HowToContribute > >Otis >---- >Performance Monitoring for Solr - http://sematext.com/spm > > > > >>________________________________ >> From: "Prakashganesh, Prabhu" <prabhu.prakashgan...@dowjones.com> >>To: "solr-user@lucene.apache.org" <solr-user@lucene.apache.org> >>Sent: Tuesday, May 1, 2012 8:45 AM >>Subject: Solr Merge during off peak times >> >>Hi, >> I would like to know if there is a way to configure index merge policy in >>solr so that the merging happens during off peak hours. Can you please let me >>know if such a merge policy configuration exists? >> >>Thanks >>Prabhu >> >> >> > > >