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No, when we implemented high-availability MySQL servers we used MySQL's inbuilt replication - this has been running here for years now and we have had constant DB availability during that time, even though individual machines have failed now and again. We're using 2 masters & 4 slaves with the logic for sql reads going to the slaves and sql writes going to the master handled in the application layer. We also have automatic master failover (although I believe MySQL plan to build this into their productsome point in the near future).
At the moment we are studying the implementation of a MySQL-Apache high High Availability system. Would you be so kind to explain a bit more detailedly the soft/hard aspects of yours application?.
I believe that at the moment this is a hot question. Probably there are many more people interested in yours experience.
Greetings.
A.J.Millan ZATOR Systems.
Very much so!
-- Jim Richardson http://www.eskimo.com/~warlock If space is warped, time is all that's weft.
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