[hobbit] Problem with hobbitd_rrd custom graph

[Henrik Stoerner]

Check the rrd file with "rrdtool info /path/to/rrdfile.rrd" and verify
that the "ds" lines show up as GAUGE. It sounds like you might have
created the rrd file using COUNTER (the default).

Henrik


In <48E0F183.7050506 at basis.is> =?ISO-8859-1?Q?Dav=ED=F0_Steinn_Geirsson?= <david at basis.is> writes:

>Hi all,

>I'm trying to create a custom graph for hobbit but am having some problems.

>I have a script doing SNMP probing and returning status messages to 
>hobbit. I have another script that generates RRD definitions for 
>hobbitd_rrd.

>I've added the script to hobbit_rrd extra_scripts:
>[rrdstatus]
>         ENVFILE /usr/lib/hobbit/server/etc/hobbitserver.cfg
>         NEEDS hobbitd
>         CMD hobbitd_channel --channel=status 
>--log=$BBSERVERLOGS/rrd-status.log hobbitd_rrd --rrddir=$BBVAR/rr
>d --extra-script=/usr/lib/hobbit/server/ext/sensatronics-grapher.py 
>--extra-tests=temp --debug


>I've also made a graph definition in hobbitgraph.cgi (not really the 
>finished definition, but I think it should work for testing):
>[temp]
>         TITLE Sensatronics environment monitor
>         YAXIS Measurement
>         DEF:11=sensatronics.rrd:11:AVERAGE
>         DEF:12=sensatronics.rrd:11:AVERAGE
>         DEF:13=sensatronics.rrd:11:AVERAGE
>         DEF:21=sensatronics.rrd:11:AVERAGE
>         DEF:31=sensatronics.rrd:11:AVERAGE
>         DEF:41=sensatronics.rrd:11:AVERAGE
>         DEF:42=sensatronics.rrd:11:AVERAGE
>         LINE2:11#00CCCC:value
>         COMMENT:\n
>         GPRINT:11:LAST: \: %5.1lf (cur)
>         GPRINT:11:MAX: \: %5.1lf (max)
>         GPRINT:11:MIN: \: %5.1lf (min)
>         GPRINT:11:AVERAGE: \: %5.1lf (avg)\n


>Now, the rrd file is created but only occasionally do I see values 
>entered into it (I haven't seen a pattern - looking over the rrd 
>generated over the weekend I see some values, sometimes 30 minutes 
>apart, sometimes hours, but almost all the measurement points show NaN)

>My script is being executed every 5 minutes.

>Here is the output from rrd-status.log (with hobbitd_rrd run with 
>--debug flag):
>2008-09-29 14:03:37 Want msg 698, startpos 1151746, fillpos 1151746, 
>endpos -1, usedbytes=0
>, bufleft=425213
>2008-09-29 14:03:38 hobbitd_rrd: Got message 698 
>@@status#698/tankar_hiti|1222697018.325994
>|10.200.10.3||tankar_hiti|temp|1222698818|green||green|1222263717|0||0||0|0
>2008-09-29 14:03:38 startpos 1152334, fillpos 1152334, endpos -1
>2008-09-29 14:03:38 -> do_external(tankar_hiti, temp)
>2008-09-29 14:03:38 000021108 : Saving msg to file 
>/usr/lib/hobbit/server/tmp/rrd_msg_21108
>2008-09-29 14:03:38 <- do_external(tankar_hiti, temp)
>2008-09-29 14:03:38 Want msg 699, startpos 1152334, fillpos 1152334, 
>endpos -1, usedbytes=0
>, bufleft=424625
>2008-09-29 14:03:38 000021108 : Calling helper script 
>/usr/lib/hobbit/server/ext/sensatroni
>cs-grapher.py tankar_hiti temp /usr/lib/hobbit/server/tmp/rrd_msg_21108
>2008-09-29 14:03:38 000021108 : Helper input 'DS:11:GAUGE:600:0:U'
>2008-09-29 14:03:38 000021108 : Helper input 'DS:12:GAUGE:600:0:U'
>2008-09-29 14:03:38 000021108 : Helper input 'DS:13:GAUGE:600:0:U'
>2008-09-29 14:03:38 000021108 : Helper input 'DS:21:GAUGE:600:0:U'
>2008-09-29 14:03:38 000021108 : Helper input 'DS:31:GAUGE:600:0:U'
>2008-09-29 14:03:38 000021108 : Helper input 'DS:41:GAUGE:600:0:U'
>2008-09-29 14:03:38 000021108 : Helper input 'DS:42:GAUGE:600:0:U'
>2008-09-29 14:03:38 000021108 : Helper input 'sensatronics.rrd'
>2008-09-29 14:03:38 000021108 : Helper input '7:62:4:21:27:24:16'
>2008-09-29 14:03:38 000021108 : Unlinking temp file
>2008-09-29 14:03:38 get_hobbitd_message: Interrupted

>The 'get_hobbitd_message: Interrupted' message always appears after 
>accepting input from my script.

>Any ideas?

>Kind regards,

>-- 
>Davíð Steinn Geirsson
>Basis ehf.
>david at basis.is / (+354) 575-0419

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