Re: Cricket Not Displaying HTML Summaries

This is my crazy ugly, but working hack.  Your mileage may vary.

Looking at it now, the my($value) line I left in might be able to be
removed, but it works enough for me, so I won't investigate any more.
:) It's probably worth noting that the 300 is a magic number,
corresponding to the normal polling interval 300 seconds aka 5
minutes.

Sorry it could be a prettier hack,
Thomas

On 9/10/07, Richman, Marc <[email protected]> wrote:
>
> I have noticed the same behavior on my cricket box (debian 4.0) but
> haven't had time to track it down yet
>
>                 Marc
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Garwin
> Liu
> Sent: Monday, September 10, 2007 7:16 AM
> To: [email protected]
> Subject: [cricket-users] Cricket Not Displaying HTML Summaries
>
> Hi
>
> I created some new entries in Cricket 1.0.5, and the RRD files that
> were created are version 3.  Cricket seems to be saving the data
> properly, but the summaries are not being displayed properly on the
>
> corresponding cricket html pages.  I think due to getDSCurrentValue
> not returning an actual value.  Is this a known issue?  Has anyone
> else seen this problem?  This is not a fatal error on Cricket's part,
> but a major annoyance.  Does anyone have a patch for getDSCurrentValue
>
> to work across RRD versions?
>
> Thanks,
>
> Garwin
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*** grapher.cgi	2007-06-06 13:35:04.000000000 -0400
--- /tmp/grapher.cgi	2007-09-12 00:39:16.301346237 -0400
***************
*** 984,989 ****
--- 984,994 ----
                  # get and scale the value (if necessary)
                  my($value) = $rrd->getDSCurrentValue($dsnum);
  
+                 my($last) = RRDs::last($rrd->file());
+                 my($start,$step,$names,$data) = RRDs::fetch($rrd->file(), 'AVERAGE', '--start', ($last - 300), '--end', $last);
+                 my($line) = @{$data}[0];
+                 $value = @{$line}[$dsnum];
+ 
                  if (defined($value) && !isNaN($value) && defined($scale)) {
                      my($rpn) = new RPN;
                      my($res) = $rpn->run("$value,$scale");