I've got the "gaps in my graphs" blues . . .

[bullwhip05]

I just installed Cacti and configured it, and I'm very impressed with the data that I'm getting, however on some of my devices, not all, I'm getting a lot of gaps in the data. Also, I have the following errors in my log file.

ERROR: illegal attempt to update using time 1138296904 when last update time is 1138296904 (minimum one second step)
ERROR: illegal attempt to update using time 1138296904 when last update time is 1138297202 (minimum one second step)
ERROR: illegal attempt to update using time 1138296904 when last update time is 1138297202 (minimum one second step)
ERROR: illegal attempt to update using time 1138296904 when last update time is 1138297202 (minimum one second step)
01/26/2006 11:44:58 AM - POLLER: Poller[0] Maximum runtime of 296 seconds exceeded. Exiting.

Any help on this would be very much appriciated!!

[mbrashear]

Looks like your poller is exceeding your 300 sec polling cycle... if your using cmd.php look into increasing your concurrent processes under console -> settings -> poller tab. If your using cactid up the number threads in the same location.

Marc

[rony]

Not only that, but looks like you have 2 poller running. Check your crontabs, and make sure you are not running the poller from more than one user.

[bullwhip05]

That looks like it helped a lot, I'm seeing a lot more consistant monitoring by changing the number of processes. Thanks. It still did not completely fix the problem. I am new to the linux operating system, so I will look into the crontab issue. Thanks a bunch guys, I will update again soon.

[gandalf]

crontab: for rpm installs, see /etc/cron.d/crontab. Futhermore, check /etc/crontab and also as root "crontab -e" and "crontab -e -u cactiuser" (where cactiuser is your cacti userid for the poller).
Reinhard

[bullwhip05]

I have the following in my crontab:

*/8 * * * * /usr/local/angel/bin/angel
*/5 * * * * php /usr/share/cacti/site/poller.php

I also have the Angel monitor running. The only user that I have this set up for is root.

Would adjusting the Angel monitor to 10 minutes help at all?

-Brock

[gandalf]

Don't know nothing about Angel. Did you check the other crontabs for dups of cacti pollers?
Reinhard

[bullwhip05]

Not sure if this helps, but when I looked at /etc/crontab I get the following:

17 * * * * root run-parts --report /etc/cron.hourly
25 * * * * root test -x /usr/sbin/anacron || run-parts --report /etc/cron.daily
47 * * * 7 root test -x /usr/sbin/anacron || run-parts --report /etc/cron.weekly
52 * 1 * * root test -x /usr/sbin/anacron || run-parts --report /etc/cron.monthly

Like I said, I'm new to linux and also to crontab and I appologize if this seems a little rudimentary to you all. I appricate the help. All the other crontabs you've asked me to check are clean, nothing in them except for the previous post.