Thanks Simon, did get that part, it was happening because solr was not able to reserve enough memory when it had hung once. The server has 24G of memory and I am try to start solr with "-Xms2g -Xmx16g -XX:MaxPermSize=3072m -D64" option. But, this is not my main concern, how do I find out why solr hangs and is there a way to automatically kill and restart.
Regards, Rohit Mobile: +91-9901768202 About Me: http://about.me/rohitg -----Original Message----- From: simon [mailto:mtnes...@gmail.com] Sent: 02 September 2011 14:03 To: solr-user@lucene.apache.org Subject: Re: Solr Hangs That error has nothing to do with Solr - it looks as though you are trying to start the JVM with a heap size that is too big for the available physical memory. -Simon On Fri, Sep 2, 2011 at 2:15 AM, Rohit <ro...@in-rev.com> wrote: > Hi All, > > > > I am using Solr 3.0 and have 4 cores build into it with the following > statistics, > > > > Core1 : numDocs : 69402640 maxDoc : 69404745 > > Core2 : numDocs : 5669231 maxDoc : 5808496 > > Core3 : numDocs : 6654951 maxDoc : 6654954 > > Core4: numDocs : 138872 maxDoc : 185723 > > > > The number of updates are very high into 2 of the cores, solr is running in > tomcat with the following JAVA_OPTS values "-Xms2g -Xmx16g > -XX:MaxPermSize=3072m -D64" . > > > > When Solr hangs and I try to restart it I am getting the following error, > which does indicate that it's a memory problem, but how can overcome the > problem of hanging. > > > > Error occurred during initialization of VM > Could not reserve enough space for object heap > > > > > > Regards, > > Rohit > > Mobile: +91-9901768202 > > About Me: <http://about.me/rohitg> http://about.me/rohitg > > > >