Hi folks,
I'm in the process of setting up about six nodes, and tossing around the idea of having either 2 masters in MirrorMode (traffic to the "active" master is managed externally) with 4 slaves (each of whom will refer their writes to the active master). I'm automating some of the setup, and in an effort to simplify the configuration, was wondering if I might be better served by simply having 6 masters with an identical configuration, each of which refer their writes to the active master (a separate IP/hostname on a virtual interface on one of the masters).
So, the question becomes, 'are there any downsides I'm not aware of?' It seems to me that the advantage with the 6 masters is that, aside from the consolidation of configs for the automated setup, I now have 6 write-capable nodes instead of 2. And, provided I chain the writes to the active master, I shouldn't have to worry about incompatible writes/partitioning. Any thoughts, advice, recommendations? Thanks!
-Ryan