I use: http://psi-probe.googlecode.com/ to monitor memory usage. Still have to get all the bells and whistles going thought. If anybody knows of a better open source app, please let me know.
On 6 May 2010 19:27, Peter Dietz <dietz...@osu.edu> wrote: > With the upgrade you essentially have another webapp running, i.e. SOLR, > which means your instance will need more memory. More for when doing a lot > of work, and more to be permanently used i.e "permgen". When I've performed > large batch processing (converting and importing old log files), I've bumped > up my max memory for tomcat/java and increased the permgen. I'm not sure if > there is something triggering solr to jump "over the edge" in your case, but > after I've allocated more memory to java/tomcat, problems just go away. > > Thus for me it would be: edit /etc/init.d/tomcat6 > JAVA_OPTS="-Djava.awt.headless=true -Xmx1536M *-XX:MaxPermSize=128m*" > > or, however you normally set JAVA_OPTS > > Peter Dietz > Systems Developer/Engineer > Ohio State University Libraries > > > > > On Thu, May 6, 2010 at 11:41 AM, Anderson, Charles W < > bill.ander...@library.gatech.edu> wrote: > >> We're on our second attempt to upgrade from 1.5.2 to 1.6. We have been >> plagued with m >> memory errors both times, and we' think we've narrowed it down to >> something that's going >> on in the solr webapp. We've got solr running in it's very own Tomcat >> instance; which has >> helped, but hasn't completely eliminated the problems. >> >> Just before we crash, we're seeing lots and lots of the following in the >> dspace log: >> >> org.apache.solr.common.SolrException: Internal Server Error >> >> Then, eventually, we start getting this: >> >> org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, >> pool error: Timeout waiting for idle object >> >> Meanwhile, over in catalina.out, we have these, which seem to correspond >> to the solr errors in the dspace log: >> >> SEVERE: org.apache.solr.common.SolrException: Error opening new >> searcher. exceeded limit of maxWarmingSearchers=2, try again later. >> >> And, eventually, the voice of doom: >> >> Exception in thread "TP-Processor550" java.lang.OutOfMemoryError: >> PermGen space >> >> Has anybody else experience memory issues related to solr? >> >> Thanks, >> >> Bill >> >> >> >> Bill Anderson >> Software Developer >> Digital Library Development >> Georgia Tech Library >> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> DSpace-tech mailing list >> DSpace-tech@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/dspace-tech >> > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > DSpace-tech mailing list > DSpace-tech@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dspace-tech > > -- Hilton Gibson Systems Administrator JSG Library Room 1025D Stellenbosch University Private Bag X5036 Stellenbosch 7599 South Africa Cell: +27 846 464 758 Email: hgibson__AT__sun.ac.za
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