CPU Usage goes very high and the server stops working

[lunallona]

Hello,

We have an issue very similar to this one below.
It has not been answered yet. Is this solved at all?

Asterisk CPU Usage goes to around 100% in a few second

Now I am using asterisk for a CTI system. I am using FreePBX for asterisk GUI. And the CTI system is made by PHP and Javascript. For the softphone I am using webrtc. The webrtc is customized by Sipml5. Server spec is 4 GB / 2 Virtual CPU, 20GB SSD Plan, CentOS 6. Everyday the recording files and asteriskcdrdb mysql database are cleaned up. Usually it will have 10 operators using it to call at the same time. But sometimes, my server CPU usage will go over 50% and in 2 sec it will go over 10…

1. It occurs in no specific time and happens whether there are many users or not.
2. We are using Asterisk 12 and 13 and problems occur to both.

What are the points that we need to check to fix the problem?
Please help. Thank you.