Everything I've read about this error talks about people having trouble after upgrades and needing to make changes to http.conf, but our case is different. Our Zabbix runs fine for a few days, and then suddenly displays the error. in the web GUI and we can't use zabbix anymore. Restarting the zabbix server service does not help, the whole server must be rebooted. And lately, when it happens, we cannot even login to the server at the console. When we put in a username, it just returns to the login screen.
Some config details:
Zabbix version:
zabbix-agent.x86_64 6.4.17-release1.el8 @zabbix
zabbix-apache-conf.noarch 6.4.17-release1.el8 @zabbix
zabbix-release.noarch 6.4-2.el8 @zabbix
zabbix-server-mysql.x86_64 6.4.17-release1.el8 @zabbix
Linux version:
[root@mgt03 ~]# cat /etc/redhat-release
Rocky Linux release 8.10 (Green Obsidian)
Kernel:
[root@mgt03 ~]# uname -a
Linux mgt03 4.18.0-553.16.1.el8_10.x86_64 #1 SMP Thu Aug 8 17:47:08 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
Resources:
[root@mgt03 ~]# free -g
total used free shared buff/cache available
Mem: 30 9 16 0 4 20
Swap: 1 0 1
[root@mgt03 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rl-root 245G 173G 73G 71% /
/dev/sda1 495M 420M 76M 85% /boot
Some config details:
Zabbix version:
zabbix-agent.x86_64 6.4.17-release1.el8 @zabbix
zabbix-apache-conf.noarch 6.4.17-release1.el8 @zabbix
zabbix-release.noarch 6.4-2.el8 @zabbix
zabbix-server-mysql.x86_64 6.4.17-release1.el8 @zabbix
Linux version:
[root@mgt03 ~]# cat /etc/redhat-release
Rocky Linux release 8.10 (Green Obsidian)
Kernel:
[root@mgt03 ~]# uname -a
Linux mgt03 4.18.0-553.16.1.el8_10.x86_64 #1 SMP Thu Aug 8 17:47:08 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
Resources:
[root@mgt03 ~]# free -g
total used free shared buff/cache available
Mem: 30 9 16 0 4 20
Swap: 1 0 1
[root@mgt03 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rl-root 245G 173G 73G 71% /
/dev/sda1 495M 420M 76M 85% /boot