There are about 500 concurrent users. It's because some famous people on social network repost a link.
This happened before. And our server were performing good.
But this time, the server is getting very slow and I noticed that the load is very high. In this picture the load is only 83.22 but that's because I rebooted it. Before rebooting it is 600+ (after editing this post, it's climbing to 200+, and it's still climbing, I guess it'd be above 600 soon)
I noticed that there're so many "ss" process. What are them? Any further advice on this case?
Thanks!
Update: after posting this question, it's getting higher:
Update:
I tried to find the source of this "ss" but it's like this:
Update: added another picture for ps auxw
Update:
Used ps aux | grep ss
and listed this:
/bin/sh -c ss -nlp | grep "[,=]27846," || netstat -nlp | grep "[[:space:]]27846/"