Anyone users IBM J9 JVM with 32G max heap ? Tuning recommendations?

Hi all, we are using solr4.7 on top of IBM JVM J9 Java7, max heap to 32G, system RAM 64G. JVM parameters: -Xgcpolicy:balanced -verbose:gc -Xms12228m -Xmx32768m -XX:PermSize=128m -XX:MaxPermSize=512m We faced one issue here: we set zkClient timeout value to 30 seconds. By using the balanced GC

Re: Anyone users IBM J9 JVM with 32G max heap ? Tuning recommendations?

Do you have GC logging turned on? If yes can you provide excerpt from the GC log for a pause that took > 30sec On 19 October 2015 at 04:16, Jeff Wu wrote: > Hi all, > > we are using solr4.7 on top of IBM JVM J9 Java7, max heap to 32G, system > RAM 64G. > > JVM parameters:

Re: Anyone users IBM J9 JVM with 32G max heap ? Tuning recommendations?

Jeff Wu wrote: > By staying with IBM JVM, anyone has recommendations on this ? The general > average heap usage in our solr server is around 26G so we'd like to stay > with 32G max heap, but want to better tune the JVM to have less global gc > pause. I am not sure if the IBM