1.1. daemon-reload

每一次修改完了 *.service , 都要进行systemctl daemon-reload

[root@mariadb-node-0 zabbix]# vi /usr/lib/systemd/system/zabbix-agent.service
[root@mariadb-node-0 zabbix]# systemctl daemon-reload
[root@mariadb-node-0 zabbix]# systemctl stop zabbix-agent.service
[root@mariadb-node-0 zabbix]# systemctl start zabbix-agent.service
[root@mariadb-node-0 zabbix]# systemctl status zabbix-agent.service
● zabbix-agent.service - Zabbix Agent
   Loaded: loaded (/usr/lib/systemd/system/zabbix-agent.service; disabled; vendor preset: disabled)
   Active: active (running) since 二 2017-10-10 10:39:08 CST; 2s ago
  Process: 149998 ExecStart=/usr/sbin/zabbix_agentd -c $CONFFILE (code=exited, status=0/SUCCESS)
 Main PID: 150001 (zabbix_agentd)
   Memory: 2.5M
   CGroup: /system.slice/zabbix-agent.service
           ├─150001 /usr/sbin/zabbix_agentd -c /etc/zabbix/zabbix_agentd.conf
           ├─150002 /usr/sbin/zabbix_agentd: collector [idle 1 sec]
           ├─150003 /usr/sbin/zabbix_agentd: listener #1 [waiting for connection]
           ├─150004 /usr/sbin/zabbix_agentd: listener #2 [waiting for connection]
           ├─150005 /usr/sbin/zabbix_agentd: listener #3 [waiting for connection]
           └─150006 /usr/sbin/zabbix_agentd: active checks #1 [idle 1 sec]

10月 10 10:39:08 mariadb-node-0 systemd[1]: Starting Zabbix Agent...
10月 10 10:39:08 mariadb-node-0 systemd[1]: PID file /run/zabbix/zabbix_agentd.pid not readable (yet?) after start.
10月 10 10:39:08 mariadb-node-0 systemd[1]: zabbix-agent.service: Supervising process 150001 which is not our child. We'll...exits.
10月 10 10:39:08 mariadb-node-0 systemd[1]: Started Zabbix Agent.
10月 10 10:39:09 mariadb-node-0 python[150008]: SELinux is preventing /usr/sbin/zabbix_agentd from using the setrlimit acc...ocess.

                                                 *****  Plugin catchall (100. confidence) suggests   **************************...
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[root@mariadb-node-0 zabbix]#