Hi Harry, As you mentioned, moving to JDK8 is a good idea. There are many known issues with G1GC and JDK7 that make using the G1 collector unreliable and you will see that kind of crashes once in a while.
cheers, esteban. -- Cloudera, Inc. On Fri, Jun 10, 2016 at 9:35 AM, Harry Waye <[email protected]> wrote: > Our regionservers are periodically seg faulting, roughly once a day, and I > would appreciate some help debugging. Some version details: > > Java HotSpot(TM) 64-Bit Server VM (24.80-b11) for linux-amd64 JRE > (1.7.0_80-b15), built on Apr 10 2015 19:53:14 by "java_re" with gcc 4.3.0 > 20080428 (Red Hat 4.3.0-8) > > hbase-regionserver 0.98.6+cdh5.3.2+83-1.cdh5.3.2.p0.17~precise-cdh5.3.2 > > The segfault log output is: > https://gist.github.com/hazzadous/aa5013f50824658e75b75fd860c73f02 > > This has details of the java options as well. Heap is ~46GB using G1GC. > > The log output from HBase around this event is: > https://gist.github.com/hazzadous/4b94b5dcb351a360881c04fb54b5a70f > > I'm going to attempt to update to java 8 to see if there's any improvements > but any analysis will be appreciated. > > Harry >
