zabbix on xenserver6?

[zap]

Hi list!

I have problems to get zabbix running on xenserver 6. No problems with xenserver 5.5 and 5.6 however.
I tryed different versions and it is always the same error:

Starting ZABBIX agent: zabbix_agentd: daemon.c:239: daemon_start: Assertion `0' failed.

xenserver6 is based on centos 5.5.
Versions:
zabbix-agent-1.8.9-6.1.i386.rpm
zabbix-agent-1.8.3-12.1.i386.rpm

I know that I have to do things like that before:
yum --enablerepo=base install yum-utils
yumdownloader --enablerepo=base e2fsprogs-devel
rpm --nodeps -Uvh e2fsprogs-devel*.rpm
yum --enablerepo=base install openssl-devel
rpm -Uv zabbix-1.8.3-12.1.i386.rpm

As said it worked with the old xenservers.

Any ideas?

Thanks in advance!

Cheers,

zap

[zap]

Aditional information

I used this howto:

http://slog.carlheaton.co.uk/index.php/2010/10/zabbix-agent-rpm-on-xenserver-5-6-dom0/

So there must be changes concerning xenserver6 as it does not work anymore.

zap

[mfecteau]

How to do it

It's possible to have the zabbix client installed on XenServer 6. It's necessary to compile it from source though.

Install tools necessary to compile :
yum --enablerepo=base install gcc make

Upload zabbix source code on the xenserver (with scp). decompress it with tar and enter directory.

Configure :
./configure --enable-agent

compile and install :
make install

create folder to put config files :
mkdir /etc/zabbix

copy config file into that directory :
cp misc/conf/zabbix_agentd.conf /etc/zabbix/

Edit the config file :
vi /etc/zabbix/zabbix_agentd.conf

Specify "AllowRoot=1" so that the zabbix client could access the "xe" command. (there's another more secure way to it though by giving access to the xe command to the zabbix user ... search the forum for it)

change "Hostname" and "Server" accordingly

Exit vi
:wq

Because the zabbix agent has no service installed, we need to start it by script when xenserver host start up. To do it, edit this file :
vi /etc/rc.local

Put this line at the end of the file :
/usr/local/sbin/zabbix_agentd

You need to open firewall ports :
vi /etc/sysconfig/iptables
Add the correct lines so that port 10051 and 10050 could pass

Exit vi

Run that command so that the firewall rules are reapplied :
/etc/init.d/iptables restart

Start the agent for the first time :
/usr/local/sbin/zabbix_agentd

Your xenserver host should now be visible on the zabbix server if you have an "auto registration" action. If not, manually create your xenserver host on zabbix.

If you change the config file (/etc/zabbix/zabbix_agentd.conf ) and want to restart the agent so the new settings get loaded, you need to kill the zabbix agent process and start it.
To kill it :
killall zabbix_agentd
To start it :
/usr/local/sbin/zabbix_agentd

To see if agent is running correctly, do that command :
ps aux | grep zabbix_agentd


---------

Word of caution about monitoring on Dom0 :
CPU load is not the load on the XenServer host (DomU), but only on Dom0. Not very useful. I didn't find a way to get it on XenServer 6.

The items that we could get are everything that the xe command could give and some other things. For my part, I"m getting :
1) % of space used on the Storage Repository (SR) that is Thin Provisioned (so that there's no crash because of overallocation)
2) number of days before licence expiration (free edition)
3) disk performance data (disk queue) with the "sar -d" command (and sysstat package). So that I could detect if there's saturation on the disk.

[zap]

Thank you very much. That sounds helpful. I'll try that out asap and let you know about the outcome.

Greetings,

zap

[zap]

Now I see the problem

Sorry, i did not mention the following. I tried compiling already.
Everything works just fine on my DDK but not on the dom0. I compiled it with ./configure --enable-agent --enable-static and copied the binaries.

What am I missing?

Thanx,

zap

[mfecteau]

I installed gcc and make with yum on each xenserver (with the command I already gave) and compiled the zabbix agent (again on each xenserver). I didn't used the option "--enable-static".

Hope it helps.

[zap]

Problem solved!

Ok, everything works now. I just had the idea to use the DDK for compiling, because the dom0 are production servers.

However, I put on gcc and make, compiled zabbix and removed gcc and make again.

Thank you for this very useful howto.

Cheers,

zap

[kevind]

FYI there is a bug in the Xenserver 6.02 release which affects permissions; in my case it prevented the Zabbix agent v 2.03 from running (didn't try other versions).

Citrix has a hotfix: http://support.citrix.com/article/CTX133174

After applying the hotfix, Zabbix agent 2.03 installed from RPM and ran with no problems.

[zap]

Thank you for the information!

I'll take that in account.

Cheers,

zap