Has anyone set up multiple grids to show on a single UI with Ganglia? I know how to set up multiple clusters but would love to show Grids on one interface.

Here's an example.



To form a grid of grids you simply point at a gmetad rather than a gmond as a data_source in gmetad.conf.

The child gmetad must have xml_port enabled and that is the port you use in the data_source.

  • Thanks, for the remote gmetad I'm polling, do I need to install ganglia-web on it? I was under the assumption I can have a bunch of gmetad servers where I can pull data from on the main gmetad server that has the web UI. If I click on the "grid" name for the other gmetad server, it wants to display its UI. – luckytaxi Jun 6 '14 at 15:07
  • The web interface and the RRDs (and hence gmetad) have to be on the same server. Be sure to set the authority URL in gmetad.conf for the child grid correctly. – Mark Wagner Jun 6 '14 at 19:51
  • Sorry let me clarify, I have the web interface and RRDs on the central server. I also have a bunch of other gmetad (the other grids) on various servers. Do I need a web interface on EACH gmetad server? – luckytaxi Jun 7 '14 at 12:07
  • If you want to see details about the clusters on the child grids then yes, you need the web interface on each gmetad server. Look at it this way: The web interface queries gmetads for information about the clusters/grids they are polling but reads the rrd data (via rrdtool) directly from the local filesystem. – Mark Wagner Jun 11 '14 at 0:35

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