Hi, Give G1 GC a try if you are on a recent JVM. We didn't have issues with ZK, but we gave G1 a try recently and look what happened: http://blog.sematext.com/2013/06/24/g1-cms-java-garbage-collector/ - maybe that will help you with ZK, too.
Otis -- HBase Performance Monitoring -- http://sematext.com/spm On Sat, Jun 29, 2013 at 2:03 AM, <[email protected]> wrote: > Hi All, > > We hit an issue that HBase server keeps shutting down. From log we can see > that sometimes we got garbage collection taking too long issue. Also, we saw > Zookeeper session timeout exception in the log. We tried to increase the > zookeeper session time out in hbase-site.xml but it didn't help. We also > tried to increase the heap size in hbase-env.sh but it didn't help either. > > Our set up was single node on VM with 4G memory and 1 processor. > > We're using hbase 0.94.1. > > Interesting thing is that with the same configuration on a different VM, we > don't get this issue... > > Any ideas? > > Thanks, > > YuLing
