[rrd-users] Re: Text formatting.

Thu Oct 7 08:14:53 MEST 1999

Today you sent me mail regarding [rrd-users] Re: Text formatting.:

*> > >      LINE2:out_bits#0000FF:"output"
*> > >      PRINT:out_bits:AVERAGE:"%3.2lf %sbits/sec ave"
*> > >      PRINT:out_bits:MAX:"%3.2lf %sbits/sec max"
*> > >      PRINT:out_bits:LAST:"%3.2lf %sbits/sec last\n">
*> > >      <PRE>
*> > >      input  <RRD::PRINT 0> <RRD::PRINT 1> <RRD::PRINT 2>
*> > >      output <RRD::PRINT 3> <RRD::PRINT 4> <RRD::PRINT 5>
*> > >      </PRE>
*> > > 
*> > > but I found that any <RRD::PRINT N> tag with values of N != 0 causes
*> > > the whole rrdcgi script to not work!  (Although <RRD::PRINT 0> does
*> > > print leading spaces when necessary!)
*> > > 
*> > This is strange. IMO it should work. Will try later on this week.
*> > 
*> 
*> I couldn't stop my mind from working so I tried it now.
*> Result: confirmation of the problem.
*> 
*> I tried this script:
*> ------cut here-------
*> #!/usr/local/bin/rrdcgi
*> <HTML><HEAD><TITLE>TEST</TITLE></HEAD>
*> <BODY>
*> <RRD::GRAPH dummy.gif --title dummy
*> --imginfo ""
*> DEF:bla1=/home/rrdtool/data/time.rrd:hours:AVERAGE
*> PRINT:bla1:MAX:"%6.2lf %sxxx"
*> PRINT:bla1:MIN:"%6.2lf %sxxx"
*> PRINT:bla1:AVERAGE:"%6.2lf %sxxx"
*> DEF:bla2=/home/rrdtool/data/time.rrd:minutes:AVERAGE
*> PRINT:bla2:MAX:"%6.2lf %sxxx"
*> PRINT:bla2:MIN:"%6.2lf %sxxx"
*> PRINT:bla2:AVERAGE:"%6.2lf %sxxx"
*> >
*> <pre>
*>       SS           SSS           SSS
*>         ###.##        ###.##        ###.##
*>               S             S             S
*>                X             X             X
*>                 xxx           xxx           xxx
*> Line 1  <RRD::PRINT 0>   <RRD::PRINT 1>   <RRD::PRINT 2>
*> Line 2  <RRD::PRINT 3>   <RRD::PRINT 4>   <RRD::PRINT 5>
*> </pre>
*> </BODY></HTML>
*> ------end here-------
*> 
*> and it produces the following output when run from the command line:
*> (note the seg fault!)
*> 
*> -------cut here-------
*> [alex at host /home/httpd/cgi-bin]$ ./printtest.cgi < /dev/null
*> (offline mode: enter name=value pairs on standard input)
*> Content-Type: text/html
*> Content-Length: 388
*> 
*> <HTML><HEAD><TITLE>TEST</TITLE></HEAD>
*> <BODY>
*> 
*> <pre>
*>       SS           SSS           SSS
*>         ###.##        ###.##        ###.##
*>               S             S             S
*>                X             X             X
*>                 xxx           xxx           xxx
*> Line 1   22.08  xxx    83.33 mxxx    11.88  xxx
*> Line 2   27.50  xxx    27.50  xxx    27.50  xxx
*> </pre>
*> </BODY></HTML>
*> Segmentation fault (core dumped)
*> [alex at host /home/httpd/cgi-bin]$
*> -------end here-------
*> 
*> This output is not good enough for the average httpd :-(
*> 
*> "[Wed Oct  6 23:59:56 1999] access to /home/httpd/cgi-bin/printtest.cgi \
*> failed for localhost, reason: Premature end of script headers"

welll almost ... the interesting bit would be to see where in the code we
get the segfault ... 

at the moment I am in a phase of recovery (having returned to my real job in
switzerland) therefore I can not realy investigat this at the moment ... 

sorry
tobi
*> 
*> Regards,
*> Alex
*> 
*> --
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*>   subject: unsubscribe to rrd-users-request at list.ee.ethz.ch
*> 
*> 

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