I just upgraded Mongo 3.0.8 to 3.2 and changed storage engine to WiredTiger. Now primary of my replica set crashes almost everyday.
There's no error in mongo log. Tailing the dmesg shows this -
The nproc, ulimit, etc. values are set. The instance has 30 GBs of RAM and same instance used to run mongo with MMapv1 without any issues.