Zabbix server can't start

[seif]

hi there , i've a problem that when zabbix server 3.4 on centos 7 zabbix server booted up it shows that everything is running " zabbix server , zabbix agent , httpd , mariadb " from systemctl however after 2 or 3 minutes zabbix server goes down
this is the systemctl status

[root@localhost ~]# systemctl status zabbix-server
● zabbix-server.service - Zabbix Server
Loaded: loaded (/usr/lib/systemd/system/zabbix-server.service; enabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: exit-code) since Thu 2018-04-05 14:20:23 EET; 8s ago
Process: 1534 ExecStop=/bin/kill -SIGTERM $MAINPID (code=exited, status=1/FAILURE)
Process: 1528 ExecStart=/usr/sbin/zabbix_server -c $CONFFILE (code=exited, status=0/SUCCESS)
Main PID: 1530 (code=exited, status=1/FAILURE)

cat /var/log/zabbix/zabbix_server.log


zabbix_server [21567]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21574]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21578]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21584]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21590]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21597]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21601]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21608]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [21614]: cannot open log: cannot create semaphore set: [28] No space left on device

df -h

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/cl-root 50G 1.8G 49G 4% /
devtmpfs 2.6G 0 2.6G 0% /dev
tmpfs 2.6G 0 2.6G 0% /dev/shm
tmpfs 2.6G 8.5M 2.6G 1% /run
tmpfs 2.6G 0 2.6G 0% /sys/fs/cgroup
/dev/sda1 1014M 196M 819M 20% /boot
/dev/mapper/cl-home 225G 33M 225G 1% /home
tmpfs 531M 0 531M 0% /run/user/0


and SElinux is disabled .

some google searches leads to that there is something related to semaphores , i'm linux beginner and idk what to do

can anyone help ?!

[Atsushi]

Please read this post.

https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/355498-centos-7-zabbix-3-4-7-cannot-create-semaphore-28-no-space-left-on-device

[seif]

i did ipcs -a , and ipcs -s for one by one process , however zabbix keeps adding more ... idk if i'm mistaken , i stopped zabbix-server then tried to remove all the process then started it again same problem . keeps adding more process

[Atsushi]

Please check what is output to the log file again.

[seif]

same msg

zabbix_server [15943]: cannot open log: cannot create semaphore set: [28] No space left on device
zabbix_server [15950]: cannot open log: cannot create semaphore set: [28] No space left on device