zabbix4.4 启动失败分析
在安装配置好zabbix后无法正常启动，原因是SELINUX设置问题导致启动失败，
故障分析：
[root@localhost zabbix]# systemctl start zabbix-server.service
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
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit zabbix-server.service has begun starting up.
1月 07 15:21:17 localhost.localdomain systemd[1]: PID file /run/zabbix/zabbix_server.pid not readable (yet?) after start.
1月 07 15:21:17 localhost.localdomain systemd[1]: zabbix-server.service never wrote its PID file. Failing.
1月 07 15:21:17 localhost.localdomain systemd[1]: Failed to start Zabbix Server.
-- Subject: Unit zabbix-server.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit zabbix-server.service has failed.
--
-- The result is failed.
1月 07 15:21:17 localhost.localdomain systemd[1]: Unit zabbix-server.service entered failed state.
1月 07 15:21:17 localhost.localdomain systemd[1]: zabbix-server.service failed.
1月 07 15:21:17 localhost.localdomain polkitd[804]: Unregistered Authentication Agent for unix-process:6787:8831344 (system bus name
1月 07 15:21:24 localhost.localdomain polkitd[804]: Registered Authentication Agent for unix-process:6797:8832061 (system bus name :
1月 07 15:21:27 localhost.localdomain systemd[1]: zabbix-server.service holdoff time over, scheduling restart.
1月 07 15:21:27 localhost.localdomain systemd[1]: Starting Zabbix Server...
-- Subject: Unit zabbix-server.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit zabbix-server.service has begun starting up.
1月 07 15:21:27 localhost.localdomain systemd[1]: PID file /run/zabbix/zabbix_server.pid not readable (yet?) after start.
1月 07 15:21:27 localhost.localdomain systemd[1]: zabbix-server.service never wrote its PID file. Failing.
1月 07 15:21:27 localhost.localdomain systemd[1]: Failed to start Zabbix Server.
-- Subject: Unit zabbix-server.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit zabbix-server.service has failed.
--
-- The result is failed.
1月 07 15:21:27 localhost.localdomain systemd[1]: Unit zabbix-server.service entered failed state.
1月 07 15:21:27 localhost.localdomain systemd[1]: zabbix-server.service failed.
1月 07 15:21:27 localhost.localdomain polkitd[804]: Unregistered Authentication Agent for unix-process:6797:8832061 (system bus name
lines 1907-1944/1944 (END)
Last login: Tue Jan 7 23:24:43 2020 from 10.100.81.67
查看 zabbix 日志分析：
发现日志提示权限问题：
5966:20200107:145500.376 using configuration file: /etc/zabbix/zabbix_server.conf
5966:20200107:145500.376 cannot set resource limit: [13] Permission denied
5966:20200107:145500.376 cannot disable core dump, exiting...
5976:20200107:145506.314 Starting Zabbix Server. Zabbix 4.4.4 (revision 3131fdac04
优化修改SELINUX=disabled
[root@localhost selinux]# vi config
#This file controls the state of SELinux on the system.
#SELINUX= can take one of these three values:
#enforcing - SELinux security policy is enforced.
#permissive - SELinux prints warnings instead of enforcing.
#disabled - No SELinux policy is loaded.
SELINUX=disabled
#SELINUXTYPE= can take one of three two values:
#targeted - Targeted processes are protected,
#minimum - Modification of targeted policy. Only selected #processes are protected.
#mls - Multi Level Security protection.
SELINUXTYPE=targeted
重新启动：
[root@localhost ~]# systemctl start zabbix-server.service
[root@localhost ~]# systemctl status zabbix-server.service
● zabbix-server.service - Zabbix Server
Loaded: loaded (/usr/lib/systemd/system/zabbix-server.service; disabled; vendor preset: disabled)
Active: active (running) since 二 2020-01-07 15:26:56 CST; 6s ago
Process: 1529 ExecStart=/usr/sbin/zabbix_server -c $CONFFILE (code=exited, status=0/SUCCESS)
Main PID: 1531 (zabbix_server)
CGroup: /system.slice/zabbix-server.service
└─1531 /usr/sbin/zabbix_server -c /etc/zabbix/zabbix_server.conf
1月 07 15:26:56 localhost.localdomain systemd[1]: Starting Zabbix Server...
1月 07 15:26:56 localhost.localdomain systemd[1]: zabbix-server.service: Supervising process 1531 which is not our child. ...exits.
1月 07 15:26:56 localhost.localdomain systemd[1]: Started Zabbix Server.
Hint: Some lines were ellipsized, use -l to show in full.
[root@localhost ~]#