报错如下：
[root@localhost zabbix]# systemctl start zabbix-server
Job for zabbix-server.service failed because a configured resource limit was exceeded. See "systemctl status zabbix-server.service" and "journalctl -xe" for details.
[root@localhost zabbix]# journalctl -xe
--
-- Unit zabbix-server.service has begun starting up.
Apr 18 22:21:06 localhost.localdomain systemd[1]: PID file /run/zabbix/zabbix_server.pid not readable (yet?) after start.
Apr 18 22:21:06 localhost.localdomain systemd[1]: zabbix-server.service never wrote its PID file. Failing.
Apr 18 22:21:06 localhost.localdomain systemd[1]: Failed to start Zabbix Server.
-- Subject: Unit zabbix-server.service has failed
解决方法：
查看配置文件/etc/zabbix/zabbix_server.conf 发现PIDfile路径下面没有zabbix_server.pid这个文件，，，试了网上各种办法然并卵，放大招重启系统，再启动服务，好了！！！
