rrd gaps

Palle L Jensen palleje at gmail.com
Thu Jan 3 15:20:03 CET 2008


Gerd,

After making below changes as you suggested, I did a "pre-flight"

# nagios -v /etc/nagios/nagios.cfg

Nagios 2.9
Copyright (c) 1999-2007 Ethan Galstad (http://www.nagios.org) Last Modified:
04-10-2007
License: GPL

Reading configuration data...

Running pre-flight check on configuration data...

Checking services...
        Checked 101 services.
Checking hosts...
        Checked 36 hosts.
Checking host groups...
        Checked 6 host groups.
Checking service groups...
        Checked 5 service groups.
Checking contacts...
        Checked 1 contacts.
Checking contact groups...
        Checked 1 contact groups.
Checking service escalations...
        Checked 0 service escalations.
Checking service dependencies...
        Checked 0 service dependencies.
Checking host escalations...
        Checked 0 host escalations.
Checking host dependencies...
        Checked 0 host dependencies.
Checking commands...
        Checked 61 commands.
Checking time periods...
        Checked 3 time periods.
Checking extended host info definitions...
        Checked 36 extended host info definitions.
Checking extended service info definitions...
        Checked 92 extended service info definitions.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors:   0

Things look okay - No serious problems were detected during the pre-flight
check

And then a restart of Nagios and Nagiosgrapher, were Nagiosgrapher failed,

[root at laknagios /]# /etc/init.d/nagios restart
/etc/init.d/nagios: warning: nagios is not running
Shutting down nagios:                                      [  OK  ]
Starting nagios:                                           [  OK  ]
[root at laknagios /]# /etc/init.d/nagios restart
Shutting down nagios:                                      [  OK  ]
Starting nagios:                                           [  OK  ]
[root at laknagios /]# /etc/init.d/ngraph restart
Shutting down ngraph:                                      [  OK  ]
Starting ngraph: Use of uninitialized value in bitwise and (&) at
/usr/sbin/ngraph line 670.
No such signal: SIGfileparse(): need a valid pathname at
/usr/lib/perl5/vendor_perl/NagiosGrapher.pm line 1158
fileparse(): need a valid pathname at
/usr/lib/perl5/vendor_perl/NagiosGrapher.pm line 1158
                                                           [FAILED]

Do you have any advice?

Thanks,
Palle

-----Original Message-----
From: nagios-users-bounces at lists.sourceforge.net
[mailto:nagios-users-bounces at lists.sourceforge.net] On Behalf Of Gerd
Mueller
Sent: Thursday, January 03, 2008 4:53 AM
To: Nagios Users Mailinglist
Subject: Re: [Nagios-users] rrd gaps

Hi,

the old NagiosGrapher interfaces (network/pipe) can cause huge
latency :-(. Thanks to a patch we got there is a new interface type
"file". The main advantages of this new interface are:
* no gaps any more
* no latency caused by NagiosGrapher
* restarting NagiosGrapher does not cause any gaps

I am sorry but the documentation totally lacks this interface. But below
is all you need.

Cheers,

Gerd




 
ngraph.ncfg:

    interface               file
    perffile_path           /dev/shm

nagios.cfg:

    process_performance_data=1
    service_perfdata_file=/dev//shm/service-perfdata
    service_perfdata_file_template=$HOSTNAME$\t$SERVICEDESC$\t
$SERVICEOUTPUT$\t$SERVICEPERFDATA$\t$TIMET$
    service_perfdata_file_mode=a
    service_perfdata_file_processing_interval=60

service_perfdata_file_processing_command=process-service-perfdata-file


commands.cfg:
define command{
        command_name process-service-perfdata-file
        command_line
mv /dev/shm/service-perfdata /dev/shm/service-perfdata.$TIMET$
        }



Am Mittwoch, den 02.01.2008, 13:29 -0500 schrieb Palle L Jensen:
> Lars and Gerd,
> 
> I am having a similar problem with rrd gaps.
> It was doing fine until I added 3 more hosts and 8 more services and then
> suddenly I get the rrd gaps, some graphs are even blank.
> 
> My latency are as below (they seem pretty high compared to yours?):
> 
> # nagiostats | grep -i latency
> Active Service Latency:               6.804 / 330.675 / 238.562 sec
> Active Host Latency:                  0.000 / 0.000 / 0.000 sec
> 
> 
> nagiostats | grep -i total
> Used/High/Total Command Buffers:      0 / 8 / 4096
> Used/High/Total Check Result Buffers: 85 / 106 / 4096
> Total Services:                       106
> Total Service State Change:           0.000 / 0.000 / 0.000 %
> Total Hosts:                          36
> Total Host State Change:              0.000 / 0.000 / 0.000 %
> 
> 
> I also use the rpm package from linadd.org.
> nagios-2.9-1.i586.rpm,
> nagios-web-2.9-1.i586.rpm,
> nagios-plugins-1.4.9-1.i586.rpm,
> nagios-plugins-extras-1.4.9-1.i586.rpm
> nagios-graph-1.6.1-rc3.i586.rpm
> 
> If you find any solution for this I would be more than happy :)
> 
> Thanks,
> - Palle
> 
> -----Original Message-----
> From: nagios-users-bounces at lists.sourceforge.net
> [mailto:nagios-users-bounces at lists.sourceforge.net] On Behalf Of Lars
> Stavholm
> Sent: Wednesday, January 02, 2008 7:06 AM
> To: Mad Unix
> Cc: nagios-users at lists.sourceforge.net
> Subject: Re: [Nagios-users] rrd gaps
> 
> Mad Unix wrote:
> > Can you tell me how did you implement graph beside the nagios
> 
> Let's keep this on the list, shall we?
> 
> I used rpm packages from linadd.org.
> 
> > Thanks
> 
> You're welcome.
> /L
> 
> > On Jan 2, 2008 12:01 PM, Lars Stavholm <stava at telcotec.se> wrote:
> >> Gerd Mueller wrote:
> >>> Hi Lars,
> >>>
> >>> which interface are you using? And how big is your nagios' latency?
> >> I don't quite understand the first question there?
> >> We use the Nagios web interface with the nuvola theme?
> >>
> >> We have only a few hosts and around a hundred service checks,
> >> i.e. no heavy load here:
> >>
> >> # nagiostats | grep -i latency
> >> Active Service Latency:                 0.000 / 0.335 / 0.135 sec
> >> Passive Service Latency:                0.000 / 0.000 / 0.000 sec
> >> Active Host Latency:                    0.000 / 0.284 / 0.152 sec
> >> Passive Host Latency:                   0.000 / 0.000 / 0.000 sec
> >>
> >> # nagiostats | grep -i total
> >> Used/High/Total Command Buffers:        0 / 1 / 4096
> >> Total Services:                         114
> >> Total Service State Change:             0.000 / 12.110 / 0.106 %
> >> Total Hosts:                            19
> >> Total Host State Change:                0.000 / 0.000 / 0.000 %
> >>
> >> /L
> >>
> >>
> >>> Am Mittwoch, den 02.01.2008, 10:13 +0100 schrieb Lars Stavholm:
> >>>> Hi All,
> >>>>
> >>>> we use latest nagios-3 and latest NagiosGrapher-1.6.1-rc5.
> >>>>
> >>>> It all works very well, except for one annoying problem:
> >>>> I get gaps in the graphs, and I don't understand why.
> >>>>
> >>>> Any ideas appreciated, sample graph attached.
> >>>>
> >>>> R
> >>>> /Lars
> >>>>
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> >>
> >>
> >>
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> > 
> > 
> > 
> 
> 
> 
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> 
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-- 
Gerd Mueller                  
Senior Consultant

NETWAYS GmbH | Deutschherrnstr. 47a | D-90429 Nürnberg 
Tel: +49 911 92885-0 | Fax: +49 911 92885-33 
GF: Julian Hein | AG Nürnberg HRB18461 
 
http://www.netways.de | gmueller at netways.de 

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Defy all challenges. Microsoft(R) Visual Studio 2005.
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