Aliyun server CPU running full of what to do

　　CPU running full

If the cloud server ECS instance's #CPU is running full

, consider the following factors:

Check program Max Threads not Enough

Program code is not optimized, there are dead loops, deadlock

The parameters of the Web configuration file are not optimized

Check the Web and system log for access exceptions

Website is hotlinking

There was a search engine crawler crawling the Web site in large areas

A small network attack; a process has an exception

Instance poisoned or in Trojan

Linux instances can be queried for reasons through system logs and Web logs, and some top,free,uptime,sar,ps commands.

Windows instances can be parsed through the resource Monitor.