Wells Oliver <wells.oliver@xxxxxxxxx> writes: > In an RDS instance with 16GB RAM, I ran a long query which started by > setting temp_buffers to 16GB, so I think I plum ran out of memory, but can > anyone point me in a different direction if the following log messages > indicate something else is awry? Yeah, this: > 2021-10-19 21:10:37 UTC::@:[24752]:LOG: server process (PID 25813) was > terminated by signal 9: Killed almost certainly indicates the Linux OOM killer at work. If you were running your own system I'd point you to [1], but I doubt that RDS lets you put your hands on the relevant knobs. regards, tom lane [1] https://www.postgresql.org/docs/current/kernel-resources.html#LINUX-MEMORY-OVERCOMMIT
