Hi We have an esx pool of about 120 VMs, and about 4-5 service checks per vm (disk/stock web/ssh/ldap/ssl certificate expiry/tomcat web apps/etc etc). The nagios monitor (also a vm) hits them all.
Only ‘unique’ issue we have since the vms are in a really aggressive load balancer, outages in networks with effect different VMS as they have vmotioned somewhere else in the cluster. We haven’t won that battle – and are happy to just live with it for now. As for scaling – its a debian box with 256mb of memory also running our LDAP slave server, and looks at 600 different things. And we run nagiosgrapher to disk. I think thats a win for nagios ☺ Terry From: gmartin [mailto:[email protected]] Sent: Friday, 13 November 2009 9:19 AM To: [email protected] Subject: Re: [Nagios-users] Installing Nagios Server on a Virtual Machine This definitely a question of scale. I suspect a virtual solution could support a couple thousand services or even more in a distributed environment. For a smaller environment it would be a no-brainer. We virtualize everything by default so the next nagios server will go virtual in our MS Hyper-V pool. \\Greg On Thu, Nov 12, 2009 at 12:36 PM, Frost, Mark {PBG} <[email protected]> wrote: This was a year or two ago, but we found that when we ran Nagios in this way it worked in general, but because of the sort of variable size of a second on VMware, the latencies were kind of screwed up. This was clearly evidenced when we looked at the performance statistics. Nagios indicated that a lot of checks ran earlier or later than it had expected them to. I don't know if somehow that's gone away or not, but it was a big issue for us and not within the realm of things we were able to tolerate so we want back to physical servers. One of the arguments I know I've seen before on this list is the idea that you're doing your critical system monitoring inside an abstracted layer (the VM) which might alter your view of the world or fail to work should there be an issue with the ESX server. But all possible acceptable depending on your site's needs. Mark >-----Original Message----- >From: DE/HAM Hoppe, Leif [mailto:[email protected]] >Sent: Thursday, November 12, 2009 8:00 AM >To: [email protected] >Subject: Re: [Nagios-users] Installing Nagios Server on a Virtual >Machine > >Hi Juki, > >No problems here, either. >OpenSuSe on Vmware ESX. > >regards from Hamburg > >cheers >Leif > >-----Original Message----- >From: Christian Schneemann [mailto:[email protected]] >Sent: Donnerstag, 12. November 2009 13:03 >To: [email protected] >Subject: Re: [Nagios-users] Installing Nagios Server on a Virtual >Machine > >Hi, > >On Thursday November 12 2009 12:42:47 pm Juki wrote: >> Hello people, >> >> I would like to know if it is advisable (or best practice) to install >and >> run a Nagios monitoring server on a virtual machine (in this case, >with >> OpenSuSE as the OS) with >> the intention of monitoring physical hardware client machines on the >same >> LAN. > >we have our Nagios testsystem and some distributed Nagios' running in >Xen >guests. We are seeing no problems with doing that. > >> >> If so, what known issues should I look out for in this case? >> >> >> Thanks, >> Juki > >Greetings, > Christian > >-- >Christian Schneemann >Operations & Services \\Greg ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Nagios-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
