special cdef does not calculate at all

[giovanni]

Hi again lvm! Thank you very much for your help.

I've checked for permission problems, its not the case, apache user have total access (rw) to cacti.log and (rx) to all the recursive directories.

But, im getting closer to the problem.

Lets analyse how cacti generates the graph in main menu:

http://URL/cacti/graph_image.php?local_ ... 1150482779

Now lets see how cacti generates the graph when you "click" on the graph:

http://URL/cacti/graph_image.php?local_ ... 8&rra_id=1

So, when i don't use the option:
graph_start=1150396379 AND graph_end=1150482779 the cdef works as a charm!

[giovanni]

Hey lvm, what you think about bug report this ?

[giovanni]

FINALLY!

I found why cacti wasnt logging correctly, the DEBUG LEVEL was on on LOW... lol

But, lets go to the solution (or workaround):

The problem occours when RRDTool draws the graph using the timestamp using the last value as the current time... seems to be a bug in RRDTool...

To solve this issue i subtracted 300 (5 minutes) from the current time in: ./include/html/inc_timespan_settings.php
See above:

Code: Select all

        $_SESSION["sess_current_timespan_end_now"] = $timespan["end_now"];

Code: Select all

        $_SESSION["sess_current_timespan_end_now"] = $timespan["end_now"] - 300;

Thats it!

[gandalf]

FINALLY!

I found why cacti wasnt logging correctly, the DEBUG LEVEL was on on LOW... lol

But, lets go to the solution (or workaround):

The problem occours when RRDTool draws the graph using the timestamp using the last value as the current time... seems to be a bug in RRDTool...

To solve this issue i subtracted 300 (5 minutes) from the current time in: ./include/html/inc_timespan_settings.php
See above:

Code: Select all

        $_SESSION["sess_current_timespan_end_now"] = $timespan["end_now"];

Code: Select all

        $_SESSION["sess_current_timespan_end_now"] = $timespan["end_now"] - 300;

Thats it!

That was exactly what I though of. You may post a bug at http://bugs.cacti.net with a reference to this post
Reinhard

[rony]

Don't reference posts in the bug system. Outline the whole bug in the bug system.