Hello Marc, I faced the similar problem, and I found a workaround. If the performance degradation in your application is caused by GC, this information might help you:
https://issues.apache.org/jira/browse/SOLR-1042 Regards, Ryuuichi Kumai. 2009/2/21 Marc Sturlese <marc.sturl...@gmail.com>: > > I am working with 3 index of 1 gig each. I am using the standard setting of > the GC, haven't changed anything and using java version "1.6.0_07". > I don't know so much about GV configuration... just read this > > http://marcus.net/blog/2007/11/10/solr-search-and-java-gc-tuning/ > > when a month ago I exeprienced another problem with Solr (at the end it was > not GV's fault). So, any advice about wich GC should I try or what should I > tune? > > Thank you very much! > > > > Shalin Shekhar Mangar wrote: >> >> On Fri, Feb 20, 2009 at 11:23 PM, Marc Sturlese >> <marc.sturl...@gmail.com>wrote: >> >>> >>> Yes, >>> Now it's almost tree days non-stop since I am running updates with the 3 >>> cores with cron jobs. If there are updates of 10000 docs everything is >>> alrite. When I start doing updates of 300000 is when that core runs >>> really >>> slow. I have to abort the import in that core and keep updating with less >>> rows each time. >>> Another thing to point is that tomcat reaches the maximum memory I allow >>> (2Gig) and never goes down (but at least it doesn't run out of memory). >>> Is >>> that normal? Shouldn't the memory go down a lot after an update is >>> completed? >>> >> >> I guess you are being hit by garbage collection. Memory utilization should >> go down once an import completes. Which GC are you using? There have been >> a >> few recent threads on GC settings. Perhaps you can try out a few of those >> settings. I don't know how big your documents/index are but if possible >> give >> it more memory. >> >> -- >> Regards, >> Shalin Shekhar Mangar. >> >> > > -- > View this message in context: > http://www.nabble.com/concurrency-problem-with-delta-import-%28indexing-various-cores-simultaniously%29-tp22120430p22125716.html > Sent from the Solr - User mailing list archive at Nabble.com. > >
