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I'm beginning to plan a migration from an old Nagios 1 server to perhaps Nagios 3. It appears that much has changed from version 1 to 3 meaning that at least some of the configurations will have to be altered or even created anew. Last summer I helped to write a comparison on monitoring systems. In that paper Nagios was a front running but Zenoss came out on top. Now I'm considering migrating to Zenoss instead of Nagios 3.
Does anyone here have practical experience with Zenoss? How does it compare with Nagios? Is it worth switching to?
Tribus: January 06, 2008
whowd January 07, 2008I too am looking into the potential of migrating from Nagios,
What's Up, Cacti, and Solarwinds in a larger enviroment (1000ish hosts).
The main issue I've had so far in my admitted short messing around is that the discovery of hosts doesn't seems to work as smoothly as I thought (I turned Zenoss loose on an entire class B, and it only found about 10% of devices I know off the top of my head should be there) What was odd about this is that I manually added one of my core routers (6509) and it discovered my second core router (which it should have since the both 6509's have routes to each other) but then both of those core routers have routes to every single edge that I have so seemingly it should have picked up on a large number of routers/switches. So I'm going to look deeper into that.
Anything issue is the why it breaks your IP ranges into networks. Like I said I ran this on an entire Class B and Zenoss listed my network as all /24 networks completely ignoring subnetting that I assumed it would pick up since it had my routing tables.
I realize that there are some settings that effect it's default network size, and I intend to mess with those soon.
My other current issue, is that Zenoss requires quite a powerful computer. I'm probably gonna have to get a box with at least 4 gigs of ram i tried it with a gig I was swapping close to 1 gig to disk in very short order.
All that said, It's gonna require a lot more learning and experimentation that the imply it will but I think Zenoss can become a crucial part of my infrastructure, it can not only potentially replace monitoring/notification but also IP address mapping and management as well as the place to look for physical location in racks. All of that convergence makes it worthwhile to me at least to spend a good bit of time figuring it all out.
Does anyone here actually have it in production yet?
hictioYou might consider Zabbix. I evaluated quite a list of NMS products for our enviroment -- Nagios, Zenoss, OpenNMS, Cacti, and more.
Zabbix won for it's graphing and notification features.
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bunjaminsquote:
You might consider Zabbix. I evaluated quite a list of NMS products for our enviroment -- Nagios, Zenoss, OpenNMS, Cacti, and more.Zabbix won for it's graphing and notification features.
++
I use both of them, Nagios for somethings, and Zabbix on selected "bastion" (if you will) servers. Zabbix is really amazing in graphing, and template setup.
The install it is a bit complex, with some dependencies (nothing that a plain vanilla LAMP server won't have) and you have to setup a pretty basic DB.We just set up a Nagios system at my work, and it is great for real time monitoring but trending isn't great and tedious to set up I hadn't heard of Zabbix until this thread. zabbix vs nagios search returned this.
Our usage will eventually be a big lcd board displaying status above the IT Helpdesk, I am interested in Zabbix purely for it's visuals.
hictioquote:If you mean meOriginally posted by oldskool:
why did you feel certain servers were better monitored by Zabbix than Nagios
Is not that Zabbix is better, perhaps I have been not clear enough, I use Nagios on every single server I administer, for internals (HDD space, load, procs, etc), and Zabbix as a monitor server, which monitors other servers; because Zabbix has great graphics (impresses the powers that be ), very easy template setup (once installed) and trending is amazing; but I can' run Zabbix on every single server I have, it uses a lot of resources (for my standards, and for the standard of servers I manage).So, I use Nagios on every one, it doesn't take that much time to setup, specially for a stand alone internal monitoring only, and on the LAN, if I can and have a spare CPU cycles, I add a Zabbix server.
One of the initial shortcomings in Zabbix was the lack of easy custom external checks. However this has been added in the latest release and now you can intitate checks from your monitoring server to your monitored devices. This is very similiar to the Nagios plugins that run and execute on the monitoring server and check resources on the monitored target.
Another cool new feature in the latest version of Zabbix is trigger hysterics. Triggers are the rules you write for notification. With hysterics support, it's easy to write alerts that don't continually flap (change from an on to off state). For example, a trigger to monitor a web server:
(({webserver:http,80.sum(#10)}=0)&{TRIGGER.VALUE}=0)|(({webserver:http,80.sum(#30)}#30)&{TRIGGER.VALUE}=1)This trigger will fire if the last 10 checks to port 80 are not answered with a valid HTTP reply. Once the trigger is active and on, it will stay on until the web server has properly answered 30 checks in a row without any errors.
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