1. Problem location
1. Monitoring CPU and memory through the PerfMon Metrics Collector plug-in in jmeter shows ConnectException connection timeout
2. The location is because the serverAgent.sh agent has not been started on the server side, and the port 4444 is found to be occupied by the startup. Use the ps -ef|grep keyword to find the process and kill it, and then use cd
/root/ServerAgent-2.2.1/
chmod +x startAgent.sh
touch nohup.out
nohup ./startAgent.sh nohup.out & ==》background start
netstat -ntlp
ps -ef | grep Agent
tail -f /root/ServerAgent-2.2.3/nohup.out
