Hi, We are using HDP 2.1, already upgrading to 2.2, ready for 2.3, meaning we have 0.98.0 and 0.98.4 currently on different environments.
I saw in last let's say two months, before we started upgrades, GC pauses due to NewPar generation, and at some point increased Xmn to 512M (our Xmx is 28G) as I found somewhere advice to do it for 0.98+ versions of HBase. However, I'm still seeing same issue, reading http://wiki.apache.org/hadoop/PerformanceTuning again, and not sure should I also maybe tune NewSize and MaxNewSize, and if yes, to what to set it is the best? Thanks a lot!
