Zabbix server is not running: the information displayed may not be current

Question

So all of a sudden, after a week of using it, I get an error message on my zabbix server gui (http://localhost/zabbix/.)

The error says: Zabbix serve

Answer 1

I was in the same trouble. For my case, that was a conflict between /etc/zabbix/zabbix_agentd.conf and zabbix_server.conf parameters. I adjusted

"DBHost=localhost", 
"DBName=zabbix",
"DBUser=zabbix",
"DBPassword=******", 
"DebugLevel=3"
"ListenPort".

If you run the default installation, you should keep ListenPort=10051 for the server and 10050 for the agent.

Cheers!

Answer 2

In my case i had to disable Linux SE

[root@webserverlocaldomain /]# setenforce 0

Disable Firewall

[root@webserverlocaldomain /]# systemctl stop firewalld

Edit config file uncommenting#

[root@webserverlocaldomain /]# vi /etc/zabbix/zabbix_server.conf

 ListenPort=10051
 DBHost=localhost
 DBPassword=password

Then restart the services

[root@webserverlocaldomain /]# systemctl restart zabbix-server zabbix-agent httpd

Answer 3

There maybe IP address conflict, try host 'Zabbix server'

Answer 4

Looks like the problem was that I created a Database monitoring Item programmatically and it triggered a bug that caused the server to shutdown.

Once I deleted the item the server came back up, and creating subsequent Items didn't kill it.

The deadly Item had a value_type of Numeric unsigned, -1 programmatically, while the newly created Items have a value_type of float, which is 0 programmatically.

The whole thing has a voodoo element to it but it did solve my problem.

Answer 5

As Zabbix Senior Instructor and Consultant Hernandes Martins says in his "Zabbix server is not running what to do?" blog post:

This is the first step that should be checked regardless of the situation, always view the logs, from the moment the error message appeared in the zabbix web interface always view the log.

By following his advice I could be able to identify the cause of the issue with my Zabbix server, and then apply the solution related to the specific problem.

In my case, as I've commented in the page:

The problem in my server was of "4. Resource Allocation Issues". Just like you wrote above, Zabbix was showing out of memory errors on the log when trying to start the server.

After increasing the value of parameter CacheSize I tried to restart the service, but it didn't respond. So, I ended up restarting the whole machine. Fortunately, in the end it resolved the problem for good.

So, take a look at the log with command tail -f /var/log/zabbix/zabbix_server.log on the terminal/prompt, watch for any errors, and tackle the problem according to what it makes sense for your particular case.

Answer 6

in my case after installing zabbix from sources (removed zabbix 4.0 because upgrading to 4.2 wasn't possible via apt on a Raspbian GNU/Linux 9.4 stretch) it loaded the config from /usr/local/etc/zabbix_server.conf instead from /etc/zabbix/zabbix_server.conf

After deleting /usr/local/etc/zabbix_server.conf and creating a symlink pointing to the correct config file in /etc/zabbix/zabbix_server.conf it started to work