So recently (on friday/saturday) one of our services started crashing pretty randomly, sometimes it holds for an hour, sometimes it crashes after 5 mins. The problem is, that kadira is showing only 100 Mb of memory usage, no spikes in method calls or sub calls.
At first I thought it’s a sub issue, so I have performed lots of optimalization (mem usage used to be around 250 Mb) but the server still crashes with “process out of memory”. I have tried to reinstall the server from scratch, but that did not help either.
Current setup:
DO Droplet with 1Gb of RAM/20Gb drive
Ubuntu 14.04.3 x64 (v15 is not supported by MUP, crashes on node.js install)
Deployed with MUP
What should I do to find out, what method/pub/process is killing the server?
EDIT:
So obviously with enough memory (4Gb) it just hangs and does not crash.