If the same Node is getting down every time, it's worth checking the Memory utilization at the OS end. You can check the /var/log/messages of the NN host when the NN went down and check if the process is getting killed by an oom.
... View more
I have the same problem, but in my case JVM pause detections are happening every 15 mins and detecting between 28337ms, .. 853466ms pauses.
... View more
