system.cpu.util returns 0 on Linux Debian Etch VM

[neyz]

Hello everyone,

I have been using zabbix for about a year now and I'm pretty satisifed with it, had some performance problems with the database at first but everything is fine now. (except a few things like UTF8 for exemple for collecting Windows counters on French based systems ^^)

Anyways back to the topic, I have an agent on one of my machines that stops returning system.cpu.util data. It actually doesn't really stop it just returns 0 for like 30min and then starts again to report correct values. All other keys are reporting fine (Rereading myself, i'm actually not quite sure about that one anymore but I know for sure i had this problem multiple times for this particular CPU key)

Here are the specs :

- Virtualised (on ESX 4) Debian Etch X86 system (fully updated, stock kernel)
- 2 processors
- 1G of RAM
- Enough disk space
- Zabbix server and frontend version : 1.6.5-1 (compiled from debian SID sources)
- Zabbix agent version : 1.6.1-2

- Agent uses active check (at least in the conf, how can you check if it's really working ?)
- StartAgents=10 (upped that just in case)

Telnet from and to the agent / server works and reports no error. There's nothing particular in the log, I am only at debug level3 for now as this happens randomly..

Did anyone experience this problem ? Did you fix it ?

I can't seem to isntall the newest version of the agent because it requires a newer version of libldap that I can't install (because still using debian etch) but at the same time I don't recall having any problems before.. I'm starting to wonder if it might be related to the fact that we are running this VM on ESX ?

Thanks !

edit : I have managed to install the newest version available for debian 1.6.5-1 even though my LDAP libraries are 2.3 and not 2.4

[neyz]

Small bump regarding this problem. Does anyone have this problem or do you have Debian Etch VM running on a ESX host and reporting correctly ?

Thank you !

[alj]

Hello everyone,

I have been using zabbix for about a year now and I'm pretty satisifed with it, had some performance problems with the database at first but everything is fine now. (except a few things like UTF8 for exemple for collecting Windows counters on French based systems ^^)

Anyways back to the topic, I have an agent on one of my machines that stops returning system.cpu.util data. It actually doesn't really stop it just returns 0 for like 30min and then starts again to report correct values......

I have 2.3 version of ldap libraries everywhere and have no problem with 1.6.5, 1.6.6 and 1.4.* versions of zabbix agent.
However i do not use active checks at all and i do not use zabbix binaries, i get latest package source from sid and recompile it on etch, so it uses etch libraries.
After that same package works fine on lenny in binary form.

Also make sure to remove --enable-ipv6 from debian/control file before compiling it otherwise all your IP addresses have to be listed in ipv6 form.

Also make sure your server version is always newer or equal to zabbix agent.
Also keep in mind that cpu.util has different metrics (more metrics) for 1.6 compared to 1.4.