How to reschedule multiple/all services at once

[Daniel Wittenberg]

Scalability might still be an issue with Multisite, there are some things that make it perform really slow to be aware of, but I have it accessing 34 nagios servers, about 36,000 devices and 1.5 million service checks, so it's definitely do-able.

Dan


From: Jake Xu [mailto:jake at demonware.net]
Sent: Tuesday, January 10, 2012 2:15 PM
To: Nagios Users List
Subject: Re: [Nagios-users] How to reschedule multiple/all services at once

Just attached Andreas' response from another thread.

@Dan, I've taken a look at Multisite. It seems to have some crazy batch commands/comments which are exactly what I am looking for. I tried it a bit but ended up getting segfault from apache when I accessed the webpage localhost/check_mk/. It's probably because I have too many sites running on my test box. Will try again later. Thanks for the recommendation.

@Michael, Icinga would be good if I started from sratch. It is pain for me to migrate everything to Icinga though because the default file structure is different and the web ui is not as straightforward as Nagios core. Thanks for showing me the OMD, didn't aware of it at all.

@Andreas, I am defining "large number of hosts" as >= one thousand, and each host is likely to have +/- 10 services, so you get the idea :) I agree with you that Thruk doesn't look as good as others, so I am looking into Check_MK Multisite as it has some pretty useful commands/shortcuts/features. I don't use the report feature that much, so Multisite should be good enough.  Yeah, hacking the cgi is really undesirable. I will just try to adapt anohter UI like Multisite.


Thanks for all the response!

Jake

On Tue, Jan 10, 2012 at 1:18 AM, Andreas Ericsson <ae at op5.se<mailto:ae at op5.se>> wrote:
On 01/09/2012 08:53 PM, Jake Xu wrote:
> Hi everyone,
>
>> From time to time, I need to restart or reschedule all services to verify
> that some new checks or new hosts are working properly. Is there any easy
> way to do that? I have a large number of hosts and services, so it would be
> tedious to click through a bunch of links via the web interface. Using
> external command is not very feasible as well because I would have to have
> all host names and service names for the command line commands.
>
> I have seen a pretty good idea on Icinga, a Nagios fork, for this purpose.
> It has a checkbox associated with each service check and a select-all
> checkbox to select all checkboxes. It would be useful to have that on the
> Nagios Core, but AFAIK there isn't any.
>

Pretty much all other UI's but the basic one has this capability. Speedwise,
I'd imagine Thruk and Multisite would suit you very well. It sort of depends
on how you define "large number of hosts and services" though. Most UI's
scale just fine to a couple of thousand hosts, although certain parts of it
might suck donkey balls with huge networks. Multisite suffers when creating
reports, for example, but is crazy fast at showing current status. Thruk is
faster at both (last time I checked), but it's, imo, pretty ugly (sorry Sven)
and lacks a bunch of boss-bling type features that other UI's have.

YMMV.

As for adding that capability to the "default" ui; That's not going to happen
unless someone provides a patch for it. None of the maintainers have any
interest in adding features to the cgi, so they're there simply as a fallback
and will most likely be removed some time in the future in favour of a ui
written in some more easily hackable language.
--
Andreas Ericsson                   andreas.ericsson at op5.se<mailto:andreas.ericsson at op5.se>
OP5 AB                             www.op5.se<http://www.op5.se/>
Tel: +46 8-230225<tel:%2B46%208-230225>                  Fax: +46 8-230231<tel:%2B46%208-230231>

Considering the successes of the wars on alcohol, poverty, drugs and
terror, I think we should give some serious thought to declaring war
on peace.


On Mon, Jan 9, 2012 at 1:17 PM, <andrew.ford at wellsfargo.com<mailto:andrew.ford at wellsfargo.com>> wrote:
I usually combine the classic external command scripts with a smidge of perl to grab the members of the hostgroup that I want to trigger something for.

If you give the following script a hostgroup name, it will grab the members from objects.cache:

#!/usr/local/nagios/bin/perl
use warnings;
use strict;

my $hostgroup = $ARGV[0];
# here's the spot where I should be checking that $hostgroup is defined...
open my $objects,'<','/usr/local/nagios/var/objects.cache' or die "Failure opening objects file: $!\n";
$/ = '}';
while (<$objects>) {
    if (/hostgroup_name\s+($hostgroup)/gs) {
        /members\s+(\S+)/gs;
        my $members = $1;
        my @members = split /,/,$members;
        for my $member (@members) {
            print "$member\n";
        }
    }
}
close $objects;

When you run that you get a list that you can feed to your external command script.
Here's the idea in shell on the command line:

bash# for x in `get_hostgroup_members big_switches`;do trigger_service_script $x;done




Andy Ford
Network Security Engineer | Solutions Design & Automation| Information Security Technology
314-348-4937<tel:314-348-4937>
andrew.ford at wellsfargo.com<mailto:andrew.ford at wellsfargo.com>

From: Michael Friedrich [mailto:michael.friedrich at univie.ac.at<mailto:michael.friedrich at univie.ac.at>]
Sent: Monday, January 09, 2012 2:54 PM
To: nagios-users at lists.sourceforge.net<mailto:nagios-users at lists.sourceforge.net>
Subject: Re: [Nagios-users] How to reschedule multiple/all services at once

On 09.01.2012 20:53, Jake Xu wrote:
Hi everyone,

>From time to time, I need to restart or reschedule all services to verify that some new checks or new hosts are working properly. Is there any easy way to do that? I have a large number of hosts and services, so it would be tedious to click through a bunch of links via the web interface. Using external command is not very feasible as well because I would have to have all host names and service names for the command line commands.

I have seen a pretty good idea on Icinga, a Nagios fork, for this purpose. It has a checkbox associated with each service check and a select-all checkbox to select all checkboxes.

hehe. you just made ricardo and rune proud :-))

It would be useful to have that on the Nagios Core, but AFAIK there isn't any.


for the problem itsself - try OMD. nagios, icinga, shinken as core available whilst the gui decision is up to you.

http://omdistro.org


Thanks in advance,
Jake





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Universitaetsstrasse 7 A-1010 Vienna, Austria



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