<div dir="ltr">Hi I am using Nagiosgraph for generating graphs on services i am monitoring. I have nagiso version 3.0.3 and nagiosgraph version <a href="http://0.9.0.">0.9.0.</a> The problem is that i am getting nan for all my graphs an localhost machine. I am using Ubuntu 7.10. The nagiosgraph.log shows the rrd files being updated but on dumping the contents of the rrdfiles they show nan which is what i am getting on the graphs. The contents of nagiosgraph.log are <div class="chat in"> <div class="msg 1st"> Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ debug - processing perfdata: 1218043447||localhost||Root Partition||DISK OK - free space: / 14218 MB (83% inode=95%):||/=2835MB;14372;16169;0;17966 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input lastcheck:1218043447 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input hostname:localhost Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input perfdata:/=2835MB;14372;16169;0;17966 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input servicedescr:Root Partition Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input output:DISK OK - free space: / 14218 MB (83% inode=95%): Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Creating directory /usr/local/nagios/nagiosgraph/rrd/localhost Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ debug - Checking /usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ critical - DS = /usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd --start 1218043446 DS:free:GAUGE:400:U:U DS:user:GAUGE:400:U:U DS:root:GAUGE:400:U:U DS:max:GAUGE:400:U:U DS:blockpct:GAUGE:400:U:U DS:inodepct:GAUGE:400:U:U RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - RRDs::create /usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd --start 1218043446 DS:free:GAUGE:400:U:U DS:user:GAUGE:400:U:U DS:root:GAUGE:400:U:U DS:max:GAUGE:400:U:U DS:blockpct:GAUGE:400:U:U DS:inodepct:GAUGE:400:U:U RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - RRDs::update /usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd 1218043447:2972712960:15070134272:16954425344:18838716416:83:95 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ debug - processing perfdata: 1218043456||localhost||PING||PING OK - Packet loss = 0%, RTA = 0.07 ms||rta=0.072000ms;100.000000;500.000000;0.000000 pl=0%;20;60;0 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input lastcheck:1218043456 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input hostname:localhost Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input perfdata:rta=0.072000ms;100.000000;500.000000;0.000000 pl=0%;20;60;0 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input servicedescr:PING Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input output:PING OK - Packet loss = 0%, RTA = 0.07 ms Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ debug - Checking /usr/local/nagios/nagiosgraph/rrd/localhost/PING___ping.rrd Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ critical - DS = /usr/local/nagios/nagiosgraph/rrd/localhost/PING___ping.rrd --start 1218043455 DS:losspct:GAUGE:400:U:U DS:rta:GAUGE:400:U:U RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - RRDs::create /usr/local/nagios/nagiosgraph/rrd/localhost/PING___ping.rrd --start 1218043455 DS:losspct:GAUGE:400:U:U DS:rta:GAUGE:400:U:U RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - RRDs::update /usr/local/nagios/nagiosgraph/rrd/localhost/PING___ping.rrd 1218043456:0:7e-05 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ debug - processing perfdata: 1218043464||localhost||Swap Usage||SWAP OK - 96% free (805 MB out of 839 MB)||swap=805MB;0;0;0;839 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input lastcheck:1218043464 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input hostname:localhost Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input perfdata:swap=805MB;0;0;0;839 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input servicedescr:Swap Usage Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - Input output:SWAP OK - 96% free (805 MB out of 839 MB) Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ debug - Checking /usr/local/nagios/nagiosgraph/rrd/localhost/Swap%20Usage___swap.rrd Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ critical - DS = /usr/local/nagios/nagiosgraph/rrd/localhost/Swap%20Usage___swap.rrd --start 1218043463 DS:swapfree:GAUGE:400:U:U DS:swapwarn:GAUGE:400:U:U DS:swapcrit:GAUGE:400:U:U DS:swapmax:GAUGE:400:U:U RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - RRDs::create /usr/local/nagios/nagiosgraph/rrd/localhost/Swap%20Usage___swap.rrd --start 1218043463 DS:swapfree:GAUGE:400:U:U DS:swapwarn:GAUGE:400:U:U DS:swapcrit:GAUGE:400:U:U DS:swapmax:GAUGE:400:U:U RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ info - RRDs::update /usr/local/nagios/nagiosgraph/rrd/localhost/Swap%20Usage___swap.rrd 1218043464:844103680:0:0:879755264 Wed Aug 6 10:24:43 2008 $RCSfile: insert.pl,v $ $Revision: 1.25 $ debug - nagiosgraph exited Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - dbfilelist %2F Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - @db=/ Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ info - Specified localhost/Root%20Partition___ db files in /usr/local/nagios/nagiosgraph/rrd: localhost/Root%20Partition___%2F.rrd Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - DS localhost/Root%20Partition___%2F.rrd lines: blockpct, free, inodepct, user, max, root Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - file=localhost/Root%20Partition___%2F.rrd Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - file=localhost/Root%20Partition___%2F.rrd line=blockpct color=996699 Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - file=localhost/Root%20Partition___%2F.rrd line=free color=336699 Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - file=localhost/Root%20Partition___%2F.rrd line=inodepct color=33FF99 Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - file=localhost/Root%20Partition___%2F.rrd line=max color=FF6699 Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - file=localhost/Root%20Partition___%2F.rrd line=root color=33FF99 Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ debug - file=localhost/Root%20Partition___%2F.rrd line=user color=009900 Wed Aug 6 10:24:51 2008 $RCSfile: show.cgi,v $ $Revision: 1.49 $ info - RRDs::graph - -a PNG --start -118800 DEF:blockpct=/usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd:blockpct:AVERAGE LINE2:blockpct#996699:blockpct GPRINT:blockpct:MAX:Max\: %6.2lf%s GPRINT:blockpct:AVERAGE:Avg\: %6.2lf%s GPRINT:blockpct:MIN:Min\: %6.2lf%s GPRINT:blockpct:LAST:Cur\: %6.2lf%s\n DEF:free=/usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd:free:AVERAGE LINE2:free#336699:free GPRINT:free:MAX:Max\: %6.2lf%s GPRINT:free:AVERAGE:Avg\: %6.2lf%s GPRINT:free:MIN:Min\: %6.2lf%s GPRINT:free:LAST:Cur\: %6.2lf%s\n DEF:inodepct=/usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd:inodepct:AVERAGE LINE2:inodepct#33FF99:inodepct GPRINT:inodepct:MAX:Max\: %6.2lf%s GPRINT:inodepct:AVERAGE:Avg\: %6.2lf%s GPRINT:inodepct:MIN:Min\: %6.2lf%s GPRINT:inodepct:LAST:Cur\: %6.2lf%s\n DEF:max=/usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd:max:AVERAGE LINE2:max#FF6699:max GPRINT:max:MAX:Max\: %6.2lf%s GPRINT:max:AVERAGE:Avg\: %6.2lf%s GPRINT:max:MIN:Min\: %6.2lf%s GPRINT:max:LAST:Cur\: %6.2lf%s\n DEF:root=/usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd:root:AVERAGE LINE2:root#33FF99:root GPRINT:root:MAX:Max\: %6.2lf%s GPRINT:root:AVERAGE:Avg\: %6.2lf%s GPRINT:root:MIN:Min\: %6.2lf%s GPRINT:root:LAST:Cur\: %6.2lf%s\n DEF:user=/usr/local/nagios/nagiosgraph/rrd/localhost/Root%20Partition___%2F.rrd:user:AVERAGE LINE2:user#009900:user GPRINT:user:MAX:Max\: %6.2lf%s GPRINT:user:AVERAGE:Avg\: %6.2lf%s GPRINT:user:MIN:Min\: %6.2lf%s GPRINT:user:LAST:Cur\: %6.2lf%s\n -snow-118800-0 -enow-0</div> </div> The contents of one of the rrd file are Current%29Users__procs.rrd <div id="content"> <div class="chat in"> <div class="msg 1st"><rrd> <version> 0003 </version> <step> 300 </step>  <lastupdate> 1218044082 </lastupdate>  <ds> <name> users </name> <type> GAUGE </type> <minimal_heartbeat> 400 </minimal_heartbeat> <min> NaN </min> <max> NaN </max>  <last_ds> 4 </last_ds> <value> 1.1280000000e+03 </value> <unknown_sec> 0 </unknown_sec> </ds> <ds> <name> uwarn </name> <type> GAUGE </type> <minimal_heartbeat> 400 </minimal_heartbeat> <min> NaN </min> <max> NaN </max>  <last_ds> 20 </last_ds> <value> 5.6400000000e+03 </value> <unknown_sec> 0 </unknown_sec> </ds> <ds> <name> ucrit </name> <type> GAUGE </type> <minimal_heartbeat> 400 </minimal_heartbeat> <min> NaN </min> <max> NaN </max>  <last_ds> 50 </last_ds> <value> 1.4100000000e+04 </value> <unknown_sec> 0 </unknown_sec> </ds>  <rra> <cf> AVERAGE </cf> <pdp_per_row> 1 </pdp_per_row>  <params> <xff> 5.0000000000e-01 </xff> </params> <cdp_prep> <ds> <primary_value> 4.0000000000e+00 </primary_value> <secondary_value> 0.0000000000e+00 </secondary_value> <value> NaN </value> <unknown_datapoints> 0 </unknown_datapoints> </ds> <ds> <primary_value> 2.0000000000e+01 </primary_value> <secondary_value> 0.0000000000e+00 </secondary_value> <value> NaN </value> <unknown_datapoints> 0 </unknown_datapoints> </ds> <ds> <primary_value> 5.0000000000e+01 </primary_value> <secondary_value> 0.0000000000e+00 </secondary_value> <value> NaN </value> <unknown_datapoints> 0 </unknown_datapoints> </ds> </cdp_prep></div> <div class="msg Nth"><database>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row>  <row><v> NaN </v><v> NaN </v><v> NaN </v></row></div> </div> </div> All the rrds are similar and they have nans in them instead of data. Strangely wihtout any change in settings i was getting graphs for some of my services like Total processes and disk space but after i removed the old rrd's they also stopped working. Please note that at no point were all the services working. It'll be great if someone can help me identify the issue. Please tell me if any additional info is needed. Thanks Abhishek Dhamija </div>