[ERROR] The telnet port 3658 is used by process 20546 instead of target process 27149, you will connect to an unexpected process.
[ERROR] 1. Try to restart arthas-boot, select process 20546, shutdown it first with running the 'stop' command.
[ERROR] 2. Or try to stop the existing arthas instance: java -jar arthas-client.jar 127.0.0.1 3658 -c "stop"
[ERROR] 3. Or try to use different telnet port, for example: java -jar arthas-boot.jar --telnet-port 9998 --http-port -1
原因：上次啟動后未正常關閉。
解決方法：按提示進入上次未正常關閉的項目，然后執行shutdown關閉。就可以進入其他項目了