Value of type "string" is not suitable for value type "Numeric (unsigned)". Value "(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)

[root@zabbix /usr/share/fonts/dejavu]#zabbix_get -s 172.16.1.8 -k tcp_22
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
0

场景：因为使用了netstat -p参数。

权限问题，zabbix_agentd是zabbix用户启动的，默认不能执行netstat -p等命令，导致从服务器取到的自动发现脚本为空

(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
解决方法 ：

chmod +s /bin/netstat

chmod +s 是什么意思呢？

为了方便普通用户执行一些特权命令，SUID/SGID程序允许普通用户以root身份暂时执行该程序，并在执行结束后再恢复身份。