I'm setting up Cacti and it seems the RRDTool isn't creating the.rrd file. This is on CentOS 6.9. Here is what I've tried so far: • Running the command as root to eliminate permissions. • Running the same command on another machine that has just rrdtool installed. • Creating a new directory /test with 777, and still same error. I believe it's an issue with the command itself, however it was generated by Cacti so unsure how there could be a syntax issue. Do you see any issues with this below command?

Am I right in thinking it should just execute if just rrdtool is installed?

Dec 07, 2013 CACTI's Poller is Not Running - Graphs Not Generating Graphing Data. Bug 250348-cacti doesn't draw graphs. It make more sense to run poller.php as user apache and don't create the user cacti? The.rrd files are not created. Pmdg Airac on this page.

Got a Cacti instance (CactiEZ with cacti 088a) where I successfully graph with number of bespoke data template and corresponding graph template. Theres one specific however case where the RRAs are simply not written out. The OID is correct. Realtime doesn't use the standard Cacti rra files. It effectively has it's own poller, and it's own temporary RRDtool files with finer detail settings, to support the faster polling.

You can see those files in the realtime-cache folder which you would have set up when installing Realtime. I'd see what happens if you use that command from a shell (replace that first '-' with 'temp.png' or you will get raw PNG data sent to stdout). If rrdtool does produce a PNG then you know that side is OK. Also check the cacti.log for the DS ID number (the number in the end of the rrd filename) - usually you'll get some information in there if it's trying to write the file. The is actually pretty good for following through what is going on - there are a lot of moving parts, and it's not all obvious!