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Are there any pitfalls with having multiple MySQL databases on 1 server node?
Posted by: John Smith
Date: August 27, 2010 02:44AM

I want to prepare my database for sharding in the future. But right now I only need 1 node.

What I'd like to do is to shard the database into virtual shards, say 12 shards, and put all of them onto the same server node for now.

And when I need to scale out, I could just then get a 2nd server and move 6 of the 12 virtual shard onto the new machines.

Are there any pitfalls with having 12 different databases on 1 machine?

* Can I still run only 1 MySQL instance to support those 12 databases?
* Does having 12 databases result in higher memory usage? How much higher?
* Does this require having 12X as many database connections?
* Any other pitfalls?

Thanks.

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Are there any pitfalls with having multiple MySQL databases on 1 server node?
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August 27, 2010 02:44AM


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