zabbix server cannot start

[panicos]

Hello,
I installed last version of Zabbix on a CentOS 7 and when i try to start the Zabbix service, i get errors. Here are the details:
[root@NGSRV3 ~]# 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@NGSRV3 ~]#
[root@NGSRV3 ~]# systemctl status zabbix-server.service
● zabbix-server.service - Zabbix Server
Loaded: loaded (/usr/lib/systemd/system/zabbix-server.service; enabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: resources) since Thu 2017-09-21 21:07:08 EEST; 3s ago
Process: 3021 ExecStart=/usr/sbin/zabbix_server -c $CONFFILE (code=exited, status=0/SUCCESS)
Main PID: 1217 (code=exited, status=1/FAILURE)
Sep 21 21:07:08 NGSRV3 systemd[1]: zabbix-server.service never wrote its PID file. Failing.
Sep 21 21:07:08 NGSRV3 systemd[1]: Failed to start Zabbix Server.
Sep 21 21:07:08 NGSRV3 systemd[1]: Unit zabbix-server.service entered failed state.
Sep 21 21:07:08 NGSRV3 systemd[1]: zabbix-server.service failed.
[root@NGSRV3 ~]#

In /var/log/zabbix/zabbix_server.log i have the following:

1723:20170921:205159.871 using configuration file: /etc/zabbix/zabbix_server.conf
1723:20170921:205159.871 cannot set resource limit: [13] Permission denied
1723:20170921:205159.871 cannot disable core dump, exiting...
zabbix_server [1726]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [1729]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [1732]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [1735]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [1738]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [1741]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [1746]: cannot open log: cannot create semaphore set: [28] No space left on device
But there is enough space on the disk:
[root@NGSRV3 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/cl_ngsrv3-root 14G 1.6G 13G 12% /
devtmpfs 484M 0 484M 0% /dev
tmpfs 495M 0 495M 0% /dev/shm
tmpfs 495M 6.7M 488M 2% /run
tmpfs 495M 0 495M 0% /sys/fs/cgroup
/dev/sda1 1014M 168M 847M 17% /boot
tmpfs 99M 0 99M 0% /run/user/0
[root@NGSRV3 ~]#

I was suggested this is a SELinux problem, but i don't know how to troubleshoot this further. I have seen previous topics with this similar issue, and try the workarounds found, but could not manage to solve the problem.
Also i admit i am not an experienced linux user.
Do you have any support suggestions regarding this issue?

THank you.

[allexpetrov]

As you've mentioned - this could be a SELinux problem. You could disable SELinux if you don't know how to operate with it or you can allow using audit2allow

[panicos]

indeed, i have no ideea how to operate SELinux. Therefore, i maaged to set it to permissive mode and the issue is solved now.
Can there be any other issue if i set it to permissive mode (which i guess = disabled)? Or is it ok if i leave it like this?

Thanks.

[allexpetrov]

Hi,
disabled is when SELinux disabled. Actually it all depends on your security requirements. If you ok to go without it - you can go without it, you will save your time in future. Ask your Security team

Regards,
Alex!

[morten.moesgaard]

Could this be the answer maybe ??

https://support.zabbix.com/browse/ZBX-2674