Agent Errors After Server Shut down and Startup.

[cgroothius]

Hi. Newbie.

I had a working install until I shut off my Zabbix box yesterday. After powering it up today, I can log into the system via web. Windows Agents however are reporting
Event Type: Warning
Event Source: ZABBIX Agent
Event Category: None
Event ID: 1
Date: 2/24/2009
Time: 2:09:40 PM
User: N/A
Computer: P####A01
Description:
[3876]: Getting list of active checks failed. Will retry after 60 seconds

I cannot telnet to server on port 10050 or 10051. I get "connection refused"

I have checked to see SE linux is disabled and firewall is also off...

Any suggestions? I ran netstat and I do not see anything listening on 10050 or 10051.

Thanks
Frustrated.

[Calimero]

Is zabbix_server running ?
Maybe you init.d scripts aren't working properly and zabbix didn't restart on boot ?

[cgroothius]

Sorry to be a dunce but are there a couple of quick commands I can use to check those possibilities

[jroberson]

What distro are you using? If it is a RedHat based distro, you can use the "service" command to start/stop/restart/status that particular service. Try "service zabbix_server status" and see if it is even running. If not try "service zabbix_server start" and see if you get any errors. If you do, check the zabbix log (default "\tmp\zabbix_server.log") and see if it is something going on there.

[cgroothius]

Seems like I have issues...

[cgroothius@zabbix /]$ service zabbix_server status
zabbix_server: unrecognized service
[cgroothius@zabbix /]$

Not sure how this can be as it was working just fine day before yesterday.

[jroberson]

Well, that just means that it might not have been setup in the init.d yet. Use a method from the Wiki - Howtos to setup your init.d. BUT before that you might just try manually starting the service by running zabbix_server and see what error, if any, pops up. If it works, then it might just not be starting up automagically on restart.

(PS: I don't think you can directly run zabbix_server as root. I remember having some issues with that but it was a while ago.)

(PPS: You could also try ps -aux and see if zabbix_server is running. )

[cgroothius]

Thanks for your help with this. Seems zabbix is not running..no sign of it in output from ps -aux:

When i run "xabbix_server" I see the following...

[root@zabbix tmp]# zabbix_server
zabbix_server [23610]: Cannot open [/tmp/zabbix_server.log] [Permission denied]
[root@zabbix tmp]#

[a2s]

Thanks for your help with this. Seems zabbix is not running..no sign of it in output from ps -aux:

When i run "xabbix_server" I see the following...

[root@zabbix tmp]# zabbix_server
zabbix_server [23610]: Cannot open [/tmp/zabbix_server.log] [Permission denied]
[root@zabbix tmp]#

You must change permissions for write and change..

[cgroothius]

Still not happening for me..

Do I need to change something here ??

[root@zabbix tmp]# ls -l zabbix_server.log
-rwxr-xr-x 1 cgroothius nkeeter 17920 2009-02-23 11:03 zabbix_server.log

[root@zabbix tmp]# zabbix_server
zabbix_server [27989]: Cannot open [/tmp/zabbix_server.log] [Permission denied]



Thanks again..

[Calimero]

Either you start zabbix_server as non-root.

Or you start it as root and then zabbix will switch to user "zabbix" (which you need to create first, of course).

Any way, the user (zabbix or your non-zabbix/non-root user) must have write access to log file + pid file.

[cgroothius]

Thanks all for your help!!

Solution was to chown zabbix /etc/zabbix_server.log

I then ran command zabbix_server and zabbix server started with no errors.

Seems that after the reboot the other day a new log file was created with different permissions (I have a zabbix_server.log.old as well). is this "normal" behaviour?

Thanks again,
Colin.

[Calimero]

zabbix (both server and agents) can rotate their log files.

There are configuration options that allow you to tell zabbix when to rotate logs (or actually what maximum size log files can reach). Or you can disable log rotation (if you prefer using logrotate which gives you more control).

[cgroothius]

Thanks again.

I have a an additional issue now in that the agent on the Zabbix Server will not start...I cant seems to get passed this. any ideas for that side of thinggs?

C.

[jroberson]

Try the same stuff as before. Try to run it manually and then check the logs. It might be a permissions issue again just like the other one.