Cactiusers.org

My Cacti 0.3 system seems to just stop gathering data for from 15 minutes to several hours at different times. I have attached a graphic of a chart showing a couple of gaps. The one at the left was 4 hours long. I do not see any settings in crontab that would account for this. This happens with all graphs for all devices. Anyone have any Ideas?

Anything in the Cacti log?

Nothing in the log. I looked through all the logs that I could find on the machine and do not see anything.

I get this really bad for all my graphs on a default install of cactiez.

I wish I knew how to update to 0.8.7a from this version...

Can't find any good instructions anywhere.

You should check that your logging is set to show errors/warnings during the poll. Least then you should be able to see any issues when it is running the poll. I'm assuming that you are using cmd.php not spine when running the default poll correct? If not, set it to cmd for now, set logging to Debug level, run a poll manually, set logging back to your prior setting and view the log. If there is issues getting the initial data, you should see errors/warnings there. That should at leave give a starting point where to look for issues.

Edit your crontab

#crontab -e

change
*/1 * * * * php /var/www/html/poller.php > /dev/null 2>&1

To say
*/5 * * * * php /var/www/html/poller.php > /dev/null 2>&1


This will fix your issue.


Linuxx

In my case I already have */5 * * * * root /usr/bin/php /opt/cacti/poller.php > /dev/null 2>&1 in /etc/crontab and it made no difference. I think that something was getting corrupted over time as graphing stopped completely at midnight last Thursday. I am bringing down the VM and creating another from the ISO.

I am running in VMWARE too. I would give you my VMDK if it didn’t have so much proprietary info in it! :D

I had the same problem as you, and had to monkey with the poller settings. I have 1600 total data sources. Here are my settings,


Good luck!


Linuxx

You have to update to 0.8.7a to fix this, since that was a bug in 0.8.7 (multiple pollers launching) which causes this issue. Just follow the normal upgrade path for Cacti, then install the PA like its a new install.