On Thu, 10 Oct 2013, Carl Wolff wrote:
> We want to monitor every(! )node (including end-nodes) on availability,
> that is a total of (8*750)+750+48+1 = 6799 nodes.
Every end-node? Why? I can see monitoring servers, or if this
is some odd form of server-farm I can see it, but for plain old
desktop systems?
In any event...
> If I enter this in icinga, i end up with a very slow performing status
> map, filled with circles cluttered with end nodes who's description
> cannot be read...
Part of the problem is that the default layout (circular with
markup) doesn't scale well with lots of hosts involved -- even if
one is very diligent with setting up the parentage rules. The
"Balanced tree" or "collapsed tree" maps are *better* in this
regard, but with the number of hosts you're dealing with those, too
will be congested.
> How can above problem be mitigated? Do I need more hierarchy?
It's usually best to let the network design define the hierarchy
as that'll allow the parent/child relationship to identify trouble-
spots more accurately. Specifically, this'll allow Icinga to call
out switch or comms failures instead of bombarding you with "host
down" notifications instead of pinging you for a powered-off switch.
For a better solution, if a map is what you need, you could use
NagVis which will allow you to break the map up into sub-maps and
then rotate those maps around in sequence.
Cheers!
+------------------------------------------------+---------------------+
| Carl Richard Friend (UNIX Sysadmin) | West Boylston |
| Minicomputer Collector / Enthusiast | Massachusetts, USA |
| mailto:crfri...@rcn.com +---------------------+
| http://users.rcn.com/crfriend/museum | ICBM: 42:22N 71:47W |
+------------------------------------------------+---------------------+
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