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2013/03/12 [PERL WARNING] Use of uninitialized value in concatenation (.) or string at /opt/munin/www/cgi/munin-cgi-graph line 237.
2013/03/12 [FATAL] Could not open image file "/var/opt/munin/cgi-tmp/munin-cgi-graph/example.com/munin.example.com/meminfo_phisical/kernel-day.png" for reading: No such file or directory Yep, this was the issue.
I gave the following permission to the directory and the issue solved.
The new manual also includes a better introduction to Cacti for new users and makes use of screen shots to illustrate various portions of the user interface.2013/03/12 [PERL WARNING] Use of uninitialized value $mtime_epoch in modulus (%) at /opt/munin/www/cgi/munin-cgi-graph line 270.2013/03/12 [PERL WARNING] Use of uninitialized value $mtime_epoch in subtraction (-) at /opt/munin/www/cgi/munin-cgi-graph line 270.Whatever timestamp I give is rejected with: ERROR: file.rrd: illegal attempt to update using time 1338480000 when last update time is 1338546901 (minimum one second step) Please guide my where I could be going wrong. When you do an update, several things happens : 1) RRD will to the necessary calculations to work out the rate from the previous update to this one.Thanks Hi guys, I need to update an rrd at a specific time stamp. 2) If the new time is such that one or more steps or consolidated periods are now complete, then these will have data entered for them.
I think I have installed and completed the steps successfully. When I tried to view the image it shows below error in browser.