Jessie, the following commit (r1754 in ganglia's svn) seems to be patching the fix proposed by Jason as part of BUG37 and that was committed in r1595 and has been left unconsistent (as not all uses of this feature has been converted to use /dev/null).
I had been unable to reproduce any problem with the original patch using several different versions of rrdtool, but your comment seems to imply you had observed the problem somehow, could you elaborate on that? using "/dev/null" instead was proposed when this patch was last reviewed in the list as shown in : http://www.mail-archive.com/ganglia-developers@lists.sourceforge.net/msg04522.html but the solution proposed by Jason has the advantage of being cross-platform (/dev/null doesn't exist in windows), so if you see no problem with the original patch I'd suggest you revert yours. Carlo --- commit 26fd9a02c6b766b43952e60e33a43abc67ae518b Author: hawson <[EMAIL PROTECTED]> Date: Wed Sep 10 22:24:30 2008 +0000 Workaround for problem with rrdtool. rrdtool needs to have an output file to do any calculations, including computing averages and other single values. Omitting the filename doens't work, nor does simply piping it to STDOUT. However, using /dev/null as a target file should work. git-svn-id: https://ganglia.svn.sourceforge.net/svnroot/[EMAIL PROTECTED] 93a4e39c-3214-0410-bb16-828d8e3bcd0f diff --git a/trunk/monitor-core/web/functions.php b/trunk/monitor-core/web/functions.php index 4e162eb..fb49128 100644 --- a/trunk/monitor-core/web/functions.php +++ b/trunk/monitor-core/web/functions.php @@ -259,7 +259,7 @@ function find_avg($clustername, $hostname, $metricname) $sum_dir = "$rrds/$clustername/$hostname"; else $sum_dir = "$rrds/$clustername/__SummaryInfo__"; - $command = RRDTOOL . " graph '' --start $start --end $end ". + $command = RRDTOOL . " graph /dev/null --start $start --end $end ". "DEF:avg='$sum_dir/$metricname.rrd':'sum':AVERAGE ". "PRINT:avg:AVERAGE:%.2lf "; exec($command, $out); ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
