Zabbix server hangs

[amolg]

Hi,

I am using Zabbix stable version 1.4.5 on Fedora core 9 OS. When we access zabbix through web console(http://(zabbix server)/zabbix) from other system, after some working it hangs for sometime & then return back to normal position after sometime. This happens many times in a day.
What could be the reason? This is happening for few hosts also(5-10).

[just2blue4u]

it hangs for sometime & then return back to normal position

What hangs?
The Server, The Interface, The Zabbix Server Prozesses... ?
WHere does it return to? The Login-Screen?

More info please...

[amolg]

The web interface stops working when we click any menu item on the web interface & after sometime it returns to the menu item we clicked.

[amolg]

Any update, the issue is not resolved yet.

[just2blue4u]

have you checked your logs? /var/log/messages, zabbix and http logs?

This might be a php memory limit problem or something...

[amolg]

I got the following error in /var/log/httpd/error_log when the web interface hangs,

[Mon Jun 30 16:24:24 2008] [notice] caught SIGTERM, shutting down
[Mon Jun 30 16:24:25 2008] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Mon Jun 30 16:24:26 2008] [notice] ModSecurity for Apache 2.1.6 configured - Apache/2.2.8 (Fedora)
[Mon Jun 30 16:24:26 2008] [notice] Digest: generating secret for digest authentication ...
[Mon Jun 30 16:24:26 2008] [notice] Digest: done
[Mon Jun 30 16:24:27 2008] [notice] mod_python: Creating 4 session mutexes based on 256 max processes and 0 max threads.
[Mon Jun 30 16:24:27 2008] [notice] mod_python: using mutex_directory /tmp
[Mon Jun 30 16:24:27 2008] [notice] Apache/2.2.8 (Unix) DAV/2 mod_auth_pgsql/2.0.3 PHP/5.2.5 mod_python/3.3.1 Python/2.5.1 mod_ssl/2.2.8 OpenSSL/0.9.8g Apache/2.2.0 (Fedora) mod_perl/2.0.3 Perl/v5.10.0 configured -- resuming normal operations

[just2blue4u]

i can't believe zabbix kills your webserver?!
Maybe you can set the log level of the webserver a little higher to get more output?