We also checked the jconsole for memory graph, it was taking only 80% of the heap (i can see still 20% remaining).
-SK On Tue, Sep 29, 2015 at 8:13 PM, Gerrit Jansen van Vuuren < gerrit...@gmail.com> wrote: > also check your'e GC, caused by using async without backpressuce, with the > latest jdk and GC1 I've found that many time's a JVM app can become > unresponsive without throwing a OOM. > > running jstat -gcutil <pid> 250 would tell you, e.g if S0 or S1 stay at > 100.00 then you've got a GC problem, and need to revert back to using CMS. >