rrd gaps

Gerd Müller gmueller at netways.de
Thu Jan 3 15:31:54 CET 2008


Which version of NagiosGrapher are you using? The file interface exists
only in the newest version.

Gerd

Am Donnerstag, den 03.01.2008, 09:20 -0500 schrieb Palle L Jensen:
> 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

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