“NoSQL is a movement promoting a loosely defined class of non-relational data stores that break with a long history of relational databases” - Wikipedia Thursday, May 12, 2011
“NoSQL is a movement promoting a loosely defined class of non-relational data stores that break with a long history of relational databases” - Wikipedia • Not one single technique Thursday, May 12, 2011
“NoSQL is a movement promoting a loosely defined class of non-relational data stores that break with a long history of relational databases” - Wikipedia • Not one single technique • Not one type of data Thursday, May 12, 2011
“NoSQL is a movement promoting a loosely defined class of non-relational data stores that break with a long history of relational databases” - Wikipedia • Not one single technique • Not one type of data • Not one type of use case Thursday, May 12, 2011
Flavors • Stand-alone • Distributed • Embedded •“Cluster” is default mode of operation •No master node •Multiple nodes may fail without interrupting service (implies storage distribution) •Isolated instances are common •Might have slave replication Thursday, May 12, 2011
Disclaimer I don’t know any and all products by heart I’m trying to illustrate my broad reasoning Thursday, May 12, 2011 NoSQL tends crammed with religious zealots
Example of my reasoning Flavor / Family Graph Key/Value Document Stand alone Neo4J Redis CouchDB MongoDB Distributed Riak Voldemort Cassandra Embedded Neo4J Tokyo Cabinet LevelDB Thursday, May 12, 2011
Example of my reasoning Flavor / Family Graph Key/Value Document Stand alone Neo4J Redis CouchDB MongoDB Distributed Riak Voldemort Cassandra Embedded Neo4J Tokyo Cabinet LevelDB Thursday, May 12, 2011
Example of my reasoning Flavor / Family Graph Key/Value Document Stand alone Neo4J Redis CouchDB MongoDB Distributed Riak Voldemort Cassandra Embedded Neo4J Tokyo Cabinet LevelDB Thursday, May 12, 2011
Example of my reasoning Flavor / Family Graph Key/Value Document Stand alone Neo4J Redis CouchDB MongoDB Distributed Riak Voldemort Cassandra Embedded Neo4J Tokyo Cabinet LevelDB Thursday, May 12, 2011
Indices or some sort of search? Thursday, May 12, 2011 What access patterns do you have today? Tomorrow? What kind of reports will customers or management require?
Riak CouchDB Data that must be available as soon as possible on all nodes Data that changes less frequently and is ok to replicate “manually” Dynamo inspired key / value store Document database Thursday, May 12, 2011
Riak CouchDB Data that must be available as soon as possible on all nodes Data that changes less frequently and is ok to replicate “manually” Data that require storage distribution Dynamo inspired key / value store Document database Thursday, May 12, 2011
Riak CouchDB Data that must be available as soon as possible on all nodes Data that changes less frequently and is ok to replicate “manually” Data that require storage distribution Data that might be local to a single node Dynamo inspired key / value store Document database Thursday, May 12, 2011
All your webish skillz and tools apply... Thursday, May 12, 2011 Important for us as it requires no “drivers” and allows us to serve binary+mime No, I don’t like WS-*
All your webish skillz and tools apply... proxies load balancers caches HTTP client libs (etag, if-modified-since, etc) language-, platform- and OS-neutral MIME / Content-Type Thursday, May 12, 2011 Important for us as it requires no “drivers” and allows us to serve binary+mime No, I don’t like WS-*
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