[rrd-users] Re: No data man

NAIL, THOMAS (SBIS) nthomas at sbis.sbc.com
Fri Aug 18 21:16:24 MEST 2000


Thanks Tobi, it worked perfectly!

-----Original Message-----
From: Tobias Oetiker [mailto:oetiker at ee.ethz.ch]
Sent: Thursday, August 17, 2000 3:34 PM
To: NAIL, THOMAS (SBIS)
Subject: RE: [rrd-users] No data man


Today you sent me mail regarding RE: [rrd-users] No data man:

*> Thanks for the timely response, Tobi. The data I'm parsing is simply a
*> colon-separated list of  values. Here is an example:
*> 
*> someplc:switched:43
*> thisplc:switched:142
*> anothplc:switched:25
*> notaplc:dedicated:12
*> nearaplc:dedicated:8
*> bytheplc:dedicated:11
*> 
*> also, I have attached a portion of the truss output (truss-file.txt). I
hope
*> you can get more out of it than I did...

well that looks fine as well ... 

a question are you trying to fetch right after the first update ?
this wont work ... you will only see data after the second update
or rather after the second step interval has passed ... 

cheers
tobi
*> 
*> Thanks again,
*> 
*> Tom Nail
*> 
*> -----Original Message-----
*> From: Tobias Oetiker [mailto:oetiker at ee.ethz.ch]
*> Sent: Thursday, August 17, 2000 2:25 PM
*> To: NAIL, THOMAS (SBIS)
*> Subject: Re: [rrd-users] No data man
*> 
*> 
*> Today you sent me mail regarding [rrd-users] No data man:
*> 
*> *> 
*> *> Tobi, et al.
*> *> thanks for designing this wonderful tool...but (you knew it was
coming,
*> *> right?) I'm having some problems. I'm trying to graph some data and it
*> isn't
*> *> showing up. Admittedly, Im a newbie and am probably missing something
*> *> simple, so I'll try to include as much information as I can. Sorry if
*> it's a
*> *> long post.
*> *> 
*> *> I'm using a simple perl script to get values from a current logfile
and
*> *> update an rrd with the specific data. The script runs fine and I
*> encounter
*> *> no errors at that end, but the data doesn't appear in the rrd. I just
*> keep
*> *> getting "NaN". The script updates only once a day (thus the large
values
*> for
*> *> the --step and heartbeat variables) and a "truss -fa" of the script
shows
*> *> that it is indeed passing the correct variables from the parsing it
has
*> *> done. I'm totally at a loss.
*> *> 
*> 
*> the program looks fine, but it would be interesting to see the
*> numbers you are feeding to rrdtool update ...
*> 
*> cheers
*> tobi
*> *> Here is the script:
*> *> Running on Solaris 2.6 x86 using Perl 5.005_03/RRDTool 1.0.17
*> *> _____________________________________
*> *> #!/usr/local/bin/perl -w
*> *> #perlscript for parsing files for PRIs
*> *> 
*> *> while (<>) {
*> *> if (/switched/) {
*> *>     chomp($_);
*> *>     @pris = split(/:/,$_);
*> *>         #print "$pris[0].rrd $pris[2]\n"
*> *>         if ( -e "/scripts/rrdt/data/PRIs/$pris[0].pri.rrd" ) {
*> *>                 system("/opt/bin/rrdtool update
*> *> /scripts/rrdt/data/PRIs/$pris[0].pri.rrd N:$pris[2]");
*> *>         }
*> *>         else {
*> *>                 system("/opt/bin/rrdtool create
*> *> /scripts/rrdt/data/PRIs/$pris[0].pri.rrd  --step 86400
*> *> DS:pris:GAUGE:100000:0:U RRA:MAX:0.5:1:750");
*> *>                 system("/opt/bin/rrdtool update
*> *> /scripts/rrdt/data/PRIs/$pris[0].pri.rrd N:$pris[2]");
*> *>         }
*> *> }
*> *> }
*> *> ______________________________________
*> *> 
*> *> ...and the output from a "fetch" command:
*> *> 
*> *> $-->rrdtool fetch PRIs/bobstx.pri.rrd MAX
*> *>                     pris
*> *> 
*> *>  966384000: -NaN
*> *>  966470400: -NaN
*> *>  966556800: -NaN
*> *> 
*> *> Any help would be appreciated.
*> *> 
*> *> Thanks,
*> *> 
*> *> Tom Nail
*> *> 
*> *> --
*> *> Unsubscribe
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*> *> 
*> *> 
*> 
*> 

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