Uh.... the options I was recommending were for your CLIENT. You should have similar settings on ZK, but it is your client that is likely to be pausing.
On Thu, Jun 10, 2010 at 4:08 PM, Jordan Zimmerman <jzimmer...@proofpoint.com > wrote: > The thing is, this is a test instance (on AWS/EC2) that isn't getting a lot > of traffic. i.e. 1 zookeeper instance that we're testing with. > > On Jun 10, 2010, at 4:06 PM, Ted Dunning wrote: > > > Possibly. > > > > I have seen GC times of > 4 minutes on some large processes. Better to > set > > the GC parameters so you don't get long pauses. > > > > On http://wiki.apache.org/hadoop/ZooKeeper/Troubleshooting it mentions > using > > the "-XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC" options. I > recommend > > adding > > > > -XX:+UseParNewGC > > -XX:+CMSParallelRemarkEnabled > > -XX:+DisableExplicitGC > > > > You may want to tune the actual parameters of the GC itself. These > should > > not be used in general, but might be helpful for certain kinds of > servers: > > > > -XX:MaxTenuringThreshold=6 > > -XX:SurvivorRatio=6 > > -XX:CMSInitiatingOccupancyFraction=60 > > -XX:+UseCMSInitiatingOccupancyOnly > > > > Finally, you should always add options for lots of GC diagnostics: > > > > -XX:+PrintGCDetails > > -XX:+PrintGCTimeStamps > > -XX:+PrintTenuringDistribution > > > > On Thu, Jun 10, 2010 at 3:49 PM, Jordan Zimmerman < > jzimmer...@proofpoint.com > >> wrote: > > > >> If I set my session timeout very high (1 minute) this shouldn't happen, > >> right? > >> > >