Memory Allocation Algorithms
Optimizing Under Heavy Load to Reduce OOM Kills
Your service runs fine at 2 AM. By 9 AM, the OOM killer has shot it in the head. dmesg shows:
Out of memory: Kill process 18234 (your-app) score 847 or sacrifice child
The process was using 4 GB of RSS. You have 16 GB installed. Something is deeply wrong, and it’s probably not what you think.
