Transparent sharding

Discussion of transparent sharding vendors and products.

January 25, 2011

dbShards update

I talked yesterday with Cory Isaacson of CodeFutures, and hence can follow up on my previous post about dbShards. dbShards basics include:

One dbShards customer writes 1/2 billion rows on a busy day, and serves 3-4,000 pages per second, naturally with multiple queries per page. This is on a 32-node cluster, with uninspiring hardware, in the cloud. The database has 16 shards, aggregating 128 virtual shards. I forgot to ask how big the database actually is. Overall, dbShards is up to a dozen or so signed customers, half of whom are in production or soon will be.

dbShards’ replication scheme works like this:  Read more

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