Øredev 2015 - Christopher Batey - DYNAMO: the paper that changed the database world

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Want to roll out a database active active over multiple datacenters? Want to be able to do rolling upgrades and software releases without downtime? How about scale to millions of durable writes a second with single digit millisecond response times.;These requirements really cut down your database choices, and any database you’re considering are probably heavily influenced by Amazon’s 2007 paper: Dynamo: Amazon’s Highly Available Key-value Store. ;In this talk we’ll go through the main parts of Dynamo and discuss them in the context of how Apache Cassandra has implemented them. We’ll cover:; Consistent hashing; Strategies for replication; Working out distributed state with Gossip; Recovering from failure with Hinted handoff and Anti-entropy repair;We’ll also talk about why picking a masterless architecture, and trading availability and partition tolerance for consistency really can lead to a linearly scalable database.

Read more: http://oredev.org/2015/sessions/dynamo-the-paper-that-changed-the-database-world

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