Hi Bihan, That's a lot of parameters and without trying one can't really give you very specific and good advice. If I had to suggest something quickly I'd say:
* go back to the basics - remove most of those params and stick with the basic ones. Look at GC and tune slowly by changing/adding params one at a time. * consider using G1 GC with the most recent Java7. Otis -- Performance Monitoring * Log Analytics * Search Analytics Solr & Elasticsearch Support * http://sematext.com/ On Thu, May 29, 2014 at 1:36 AM, bihan.chandu <bihan.cha...@gmail.com>wrote: > Hi All > > I am Currently using solr 3.6.1 and my system handle lot of request .Now we > are facing High GC issue in system. Please find the memory parameters in my > solr system . Can some on help me to identify is there any relationship > between my memory parameters and GC issue. > > MEM_ARGS="-Xms7936M -Xmx7936M -XX:NewSize=512M -XX:MaxNewSize=512M > -Xss1024k > -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC > -XX:CMSInitiatingOccupancyFraction=80 -XX:+UseCMSInitiatingOccupancyOnly > -XX:+CMSParallelRemarkEnabled -XX:+AggressiveOpts > -XX:LargePageSizeInBytes=2m -XX:+UseLargePages -XX:MaxTenuringThreshold=15 > -XX:-UseAdaptiveSizePolicy -XX:PermSize=256M -XX:MaxPermSize=256M > -XX:SurvivorRatio=4 -XX:TargetSurvivorRatio=90 -XX:+PrintGCDetails > -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime -XX:+PrintGC > -Xloggc:${GCLOG} -XX:-OmitStackTraceInFastThrow -XX:+DisableExplicitGC > -XX:-BindGCTaskThreadsToCPUs -verbose:gc -XX:StackShadowPages=20" > > Thanks > Bihan > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Solr-High-GC-issue-tp4138570.html > Sent from the Solr - User mailing list archive at Nabble.com. >
