VPS going down for unknown reason related to RAM
I have 3 VPS servers with a VPS provider. All 3 of them are in different cities.
Each server has 2GB of RAM and 1GB of swap. Centos7 installed.
The problem is that all 3 servers go down multiple times per week and the only way to fix them is to reboot from SolusVM panel.
This is how a crashed server looks like in Solus https://dl.dropboxusercontent.com/s/xpt68acvcv48ole/chrome_2016-11-17_11-51-51.png
note the null/null. Why is that?
After rebooting if I check the logs I get this https://gist.githubusercontent.com/jimaek/7d4826beb825d44a5181c28fbe1c383f/raw/7e3c18567233b7e0cce8947c4414063850e40ce4/gistfile1.txt
Lots of errors related to "Cannot allocate memory" and then my reboot that fixes everything.
Support says that its a problem with my software and not their.
- I have a lot of servers deployed. They all run identical software and config. Only servers with this provider have this problem
- Most other servers have 512MB RAM and run just fine without errors
Any ideas what is wrong? If its a problem of the provider what proof can I provide them?