[cPanel-News] cPanel 11.25 Tech Bulletin: Updated Bandwidth Tracking Requirements

[Aaron Phillips]

n cPanel 11.25 we have made a few feature improvements to the  
bandwidth tracking system built into WHM and cPanel. While these new  
features grants you a much more accurate and granular view of client  
bandwidth usage, customers with inadequately sized /var partitions may  
run into issues related to partition size and disk space consumption.

It should also be noted that the creation of these files occurs during  
the first upcp that results in an upgrade to 11.25 and can require  
significantly more time than normal upgrades.

The notice for this change was in our release notes for 11.25 which  
can be found at http://docs.cpanel.net/twiki/pub/AllDocumentation/ReleaseNotes/1125releasenotes.pdf

Change: Bandwidth graph RRD files are split off for each individual  
service per domain and subdomain and stored in /var/cpanel/bandwidth/ .

Potential Issue: On some machines, depending on the partitioning  
schema and the number of domains on a server, there may be a disk  
space issue. This will only effect customers with large numbers of  
domains and a relatively small /var/ partition, i.e., 8-10G. In these  
situations, the /var/ partition may become full.

Workaround: For the time being, if you are affected by this issue, we  
are suggesting the following temporary fixes.


Disabling Bandwidth Stats Generation: ‘touch /etc/rrdtooldisable ’ .  
This will disable generation of the rrdfiles altogether. Removing this  
file will result in the graphs being generated again.

or

Symlinking /var/cpanel/bandwidth to a partition with more space.


The below command will create a /home/bwtemp directory, copy the  
contents of /var/cpanel/bandwidth to it, create a backup in /root/cp- 
bandwidth-backup.tar.gz, and then symlink the old directory to the new  
one where there should be more diskspace.

mkdir /home/bwtmp
tar -czvf /root/cp-bandwidth-backup.tar.gz /var/cpanel/bandwidth 
mv /var/cpanel/bandwidth/* /home/bwtmp/
rm -rf /var/cpanel/bandwidth
ln -s /home/bwtmp /var/cpanel/bandwidth

If you have issues executing the fix for this change, please submit a  
ticket via https://tickets.cpanel.net and we will assist you with this  
fix.