dubbo service telnet command

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本文介绍如何使用Dubbo进行服务治理，包括服务发现、服务调用统计、远程调用及服务状态监控等关键操作。通过具体步骤展示如何利用telnet命令进行服务列表查询、调用次数统计、服务调用及系统资源状态检查。

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1、$ telnet 10.10.10.10 20881 #10.10.10.10 dubbo service provider's ip

or $ telnet localhost 20881
Trying 10.10.10.10...
Connected to 10.10.10.10.
Escape character is '^]'.

2、press ENTER

3、ls service providers

dubbo>ls
com.xxx.xxx.xxx.xxx.api.xxx
com.xxx.xxx.xxx.xxx.api.xxx.xxx
com.xxx.xxx.xxx.xxx.api.xxx.xxx

4、dubbo>count com.xxx.xxx.xxx.xxx.api.xxx.xxx xxx #查看服务调用次数
dubbo>
+----------------------+-------+--------+--------+---------+-----+
| method | total | failed | active | average | max |
+----------------------+-------+--------+--------+---------+-----+
| xxx | 0 | 0 | 0 | 0ms | 0ms |
+----------------------+-------+--------+--------+---------+-----+

5、dubbo>count com.xxx.xxx.xxx.xxx.api.xxx.xxx #查看某个方法调用次数
dubbo>
+----------------------+-------+--------+--------+---------+-----+
| method | total | failed | active | average | max |
+----------------------+-------+--------+--------+---------+-----+
| xxx | 0 | 0 | 0 | 0ms | 0ms |
| xxx | 0 | 0 | 0 | 0ms | 0ms |
| xxx | 0 | 0 | 0 | 0ms | 0ms |
| xxx | 0 | 0 | 0 | 0ms | 0ms |
+----------------------+-------+--------+--------+---------+-----+

6、dubbo>invoke com.xxxx.xxx.xxx.xxx.api.xxx.xxxx.xxx({"id":23,"kdtId":xxxx}) #invoke one service.method(args)
{"code":200,"data":{"teamName":"��Ʒ��ѡ","gender":2,"avatarUrl":"https://img.xxx.cn/upload_files/2018/10/23/xxx.jpg","infoStatus":4,"kdtId":19225559,"description":"��ԣ��ʵ�õ��","bgImage":"https://img.xxx.cn/ https://img.xxx.cn/public_files/2018/10/17/xxxx.png","commonTagList":[{"createdAt":xxxxx,"realName":"xxx","bizId":0,"name":"��ѧ","id":35,"type":1,"status":0},{"createdAt":xxxx,"realName":"��","bizId":0,"name":"�ӼҺ��","id":38,"type":1,"status":0}],"xxx":xxx,"labelList":[{"createdAt":xxxx,"name":"��ѧ","id":35,"type":1},{"createdAt":xxx,"name":"�ӼҺ��","id":38,"type":1}],"realName":"xxx","nickname":"ѩ��ֲ��","id":xxx,"status":2,"updatedAt":xxx},"success":true,"message":"successful"}
elapsed: 12 ms.

7、dubbo>status -l #显示汇总状态
+------------+--------+--------------------------------------------------------+
| resource | status | message |
+------------+--------+--------------------------------------------------------+
| threadpool | OK | Pool status:OK, max:200, core:200, largest:200, active:1, task:35922, service port: 20881 |
| datasource | OK | dspDataSourcejdbc:mysql://xxx.xxx.xxx.xxx:3306/databasename?characterEncoding=utf8(MySQL-5.7.1-xxx-RDS-2.8.xxx-RELEASE-f4535b2), dataSourcejdbc:mysql://xxx.xxx.xxx.xxx:port/databasename?useUnicode=true&characterEncoding=UTF-8&characterSetResults=UTF-8&useSSL=false&zeroDateTimeBehavior=convertToNull(MySQL-5.6.1-Shiva-RDS-2.8.20190102-RELEASE-f4535b2), marsDataSourcejdbc:mysql://xxx.xxx.xxx.xxx:3306/databasename?useUnicode=true&characterEncoding=UTF-8&characterSetResults=UTF-8&useSSL=false&zeroDateTimeBehavior=convertToNull(MySQL-5.6.1-Shiva-RDS-2.8.20190102-RELEASE-f4535b2) |
| load | OK | load:0.1,cpu:4 |
| memory | OK | max:3942M,total:3942M,used:1054M,free:2888M |
| server | OK | /xxx.xxx.xxx.xxx:20881(clients:210) |
| registry | OK | xxx.s.xxx-inc.com:port(connected),huadong1-etcd-0.s.xxx-inc.com:port(connected),bd-etcd-0.s.xxx-inc.com:port(connected) |
| spring | OK | |
| summary | OK | |
+------------+--------+--------------------------------------------------------+