RRDcached graphs are not displayed

Hi, pictures with charts have not worked for me for some time, below I paste the screenshot and validate.php.


Component Version
LibreNMS 23.7.0-64-ge100d1766 (2023-08-05T19:12:53+02:00)
DB Schema 2023_08_02_120455_vendor_ouis_unique_index (255)
PHP 8.2.8
Python 3.9.2
Database MariaDB 10.5.19-MariaDB-0+deb11u2
RRDTool 1.7.2
SNMP 5.9

[OK] Composer Version: 2.5.8
[OK] Dependencies up-to-date.

[OK] Database connection successful
[OK] Database Schema is current
[OK] SQL Server meets minimum requirements
[OK] lower_case_table_names is enabled
[OK] MySQL engine is optimal
[OK] Database and column collations are correct
[OK] Database schema correct
[OK] MySQl and PHP time match
[OK] Active pollers found
[OK] Dispatcher Service not detected
[OK] Locks are functional
[OK] Python poller wrapper is polling
[OK] Redis is unavailable
[OK] rrdtool version ok
[OK] Connected to rrdcached


I’m very new to this forum, but just setup a distributed poller setup and got caught with a very similar problem so thought I would try and help. Make sure that you have configured your /etc/default/rrdcached config file, the perms are right and the daemon is started / restarted. Recommended not to have it on the network (-L param) unless you are doing distributed polling as there is zero security imparted in rrdcached. (e.g. use a firewall / ufw / iptables etc).

This is the guide that I followed for checking the rrdcached, principally the config file that points to the rrds themselves, the path to the unix socket, and the permissions.

Hope that helps a bit!

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