Server out of memory error

[Alpha.Ars]

I got the server out of memory error, I saw this a few times already but never looked into it. 

I do have more than enough memory and never saw it peeked higher than 50%.

 

arialis-diagnostics-20240206-0745.zip

[JorgeB]

If it's a one time thing you can ignore, if it keeps happening try limiting more the RAM for VMs and/or docker containers, the problem is usually not just about not enough RAM but more about fragmented RAM, alternatively a small swap file on disk might help, you can use the swapfile plugin:

 

https://forums.unraid.net/topic/109342-plugin-swapfile-for-691/

[Michael_P]

4 hours ago, Alpha.Ars said:

I do have more than enough memory and never saw it peeked higher than 50%.

 

Check the settings for whatever docker container this is:

 

267f51398ba53554d26eae3fb5106c73d8d91bffaecddb18b01b4c4515f756c4

 

Looks like that's what ran the system out of memory (doing a Java task?)

[Alpha.Ars]

1 hour ago, JorgeB said:

if it keeps happening...

I'll look into that, thanks

 

1 hour ago, Michael_P said:

 

docker container this is:

267f51398ba53554d26eae3fb5106c73d8d91bffaecddb18b01b4c4515f756c4

I did not find any container with this id nor name, I do have some minecraft servers running.

[Michael_P]

2 hours ago, Alpha.Ars said:

I did not find any container with this id nor name, I do have some minecraft servers running.

 

If you can figure out which ones they are, that's what's running it OOM - it killed two of them yesterday

 

Feb  5 22:33:38 arialis kernel: oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=a9ec7aa2e1dadd1fa6c282acbce5a61428e03f6427ebe5eeef5e8cbe21cf2118,mems_allowed=0-1,oom_memcg=/docker/a9ec7aa2e1dadd1fa6c282acbce5a61428e03f6427ebe5eeef5e8cbe21cf2118,task_memcg=/docker/a9ec7aa2e1dadd1fa6c282acbce5a61428e03f6427ebe5eeef5e8cbe21cf2118,task=java,pid=17304,uid=988
Feb  5 22:33:38 arialis kernel: Memory cgroup out of memory: Killed process 17304 (java) total-vm:22928132kB, anon-rss:6264592kB, file-rss:0kB, shmem-rss:64kB, UID:988 pgtables:14240kB oom_score_adj:0

 

Feb  5 22:54:59 arialis kernel: oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=267f51398ba53554d26eae3fb5106c73d8d91bffaecddb18b01b4c4515f756c4,mems_allowed=0-1,oom_memcg=/docker/267f51398ba53554d26eae3fb5106c73d8d91bffaecddb18b01b4c4515f756c4,task_memcg=/docker/267f51398ba53554d26eae3fb5106c73d8d91bffaecddb18b01b4c4515f756c4,task=java,pid=17894,uid=988
Feb  5 22:54:59 arialis kernel: Memory cgroup out of memory: Killed process 17894 (java) total-vm:22835064kB, anon-rss:6271064kB, file-rss:0kB, shmem-rss:64kB, UID:988 pgtables:14176kB oom_score_adj:0