Excessive memory usage - ovpn server

RouterOS General
1

Hello,

I have a problem with one of my RB2011 - something is constantly eating up RAM, rb crashes and forces a restart. It has plenty of RAM (128 MB), and it acts only as OpenVPN server, for approx. 20 connections. There is no shaping, mangle etc, very low traffic.. I have like 40 of RB2011s, some routing and shaping 100mbit connections with many firewall/shaping rules, and without any problems for years.

How can I find out what process/etc is eating the memory? I can see only total memory used.. RB crashes with “Out of memory condition was detected”.
I’m using previous bugfix 6.34.2, and it was the same with 6.32.4. I updated it to latest bugfix 6.36.4, but memory usage seems still increasing.

I’m posting screenshots of memory usage and log after restart
log.png
rb2011 memory.jpg

2

Hi,

In “System” → “Logging”, tab “Action” “memory”: How many lines do you log?
According to the graphics you provided, the RAM eating is quite regular.

Can you please post a “/export compact hide-sensitive”.
Thank you.


Regards,
Ape

3

either 300 or 1000 lines.

But the RB is probably frozen and not replying any more - probably the watchdog restart wasn’t fast enough.

Unfortunately it is not in my office, so I need to ride all the way to the place and restart it :-/

Hopefully I’ll get there this week