Hi Puneet, Along with the heap dump details, I would also like to know the version of the Hadoop-Yarn being used, size of the cluster, all Memory configurations, and JRE version. Also if possible can you share the rational behind the choice for Parallel GC collector over others (CMS or G1) ?
Regards, + Naga On Thu, Aug 24, 2017 at 2:54 AM, Ravi Prakash <ravihad...@gmail.com> wrote: > Hi Puneet > > Can you take a heap dump and see where most of the churn is? Is it lots of > small applications / few really large applications with small containers > etc. ? > > Cheers > Ravi > > On Wed, Aug 23, 2017 at 9:23 AM, Ravuri, Venkata Puneet <vrav...@ea.com> > wrote: > >> Hello, >> >> >> >> I wanted to know if there is any recommendation for ResourceManager GC >> settings. >> >> Full GC (with Parallel GC, 8 threads) is sometimes taking more than 30 >> sec due to which state store sessions to Zookeeper time out resulting in >> FATAL errors. >> >> The YARN cluster is heavily used with 1000’s of applications launched per >> hour. >> >> >> >> Could you please share any documentation related to best practices for >> tuning resourcemanager GC? >> >> >> >> Thanks, >> >> Puneet >> > >
