My Server keeps going down

williammabotja_44505

Hi,

I’m running my server using docker compose up -d but once in a while, within 24 hours it goes down.

Does anyone have an idea what could be wrong and is there a way I can bake it into systemctl and run it as a background thread?

All assistance will be much appreciated.

pkernstock

Logs? Warnings/Errors? Server specs? The containers are running in the background.

williammabotja_44505

Specs:

DartNode Cloud VPS

Ubuntu 24.04 n13

vCPU: 2 Cores
Memory: 4 GB
Storage: 100 GB

Fri Mar 7 19:52:35 +04 2025 Postfix health level: 63% (⅝), health trend: -2

1 | Fri Mar 7 19:44:41 +04 2025 Postfix health level: 0% (0/8), health trend: -2
watchdog-mailcow-1 | Fri Mar 7 19:44:42 +04 2025 Nginx health level: 100% (5/5), health trend: 0
watchdog-mailcow-1 | Fri Mar 7 19:44:42 +04 2025 Redis health level: 100% (5/5), health trend: 0
watchdog-mailcow-1 | Fri Mar 7 19:44:42 +04 2025 Postfix hit error limit
watchdog-mailcow-1 | CRITICAL - Socket timeout
watchdog-mailcow-1 | SMTP OK - 0.013 sec. response time|time=0.012867s;;;0.000000
watchdog-mailcow-1 | CRITICAL - Socket timeout

Postfix Hit Error Limit stands out for me

pkernstock

https://docs.mailcow.email/getstarted/prerequisite-system/#minimum-system-resources:~:text=1%20GHz-,RAM,1%20GiB%20swap,-(default%20config)

Probably OOM kill:

Resource	Minimal Requirement
RAM	Minimum 6 GiB + 1 GiB swap (default config)

williammabotja_44505

Thanks, I’ll try purchase a bigger instance.