Start Rrd files not updating

Rrd files not updating

For those of you who have been using Cacti to visualize the performance of various elements of your network, it is sometimes necessary to migrate Cacti and all its graph datasets from one server to another. The current server may be old, or is running out of space and CPU, or you may simply want to move to new hardware platform.

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A previous tutorial provides detailed information on how we can set up Cacti in the new server.

To recap, we can use (RHEL/Cent OS) to install Cacti and set up necessary My SQL databases.

Step 3.1: Old Server To create a database dump, we will use the following command. Unfortunately, Cacti cannot update the graphs if the RRD files are copied directly to the new server.

The right way to migrate the graphs is to convert them to XML, move them to the new server and restore the RRD files from XML.

To do this, you must dump all of the protocol RRDs into XML format, run a conversion script (named, which is installed with the other Coral Reef applications) to add them up into a single XML file, and turn that back into an RRD.

Cacti is a popular network graphing tool widely used by many service providers.

That is, the graphs will remain unchanged during the migration window.