Riak from Small to Large

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Riak (http://basho.com), a dynamo-inspired, open-source key/value datastore, was built to scale from a single machine to a 100+ cluster without driving you or your operations team crazy.

This presentation points out the characteristics of Riak that become important in small, medium, and large clusters, and then demonstrates the Riak API via the Python client library.

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Riak from Small to Large

  1. 1. Riak from Small to Large (about 2 minutes until start) Berlin Buzzwords · June 2010 Rusty Klophaus (@rklophaus) Basho Technologies
  2. 2. Introduction Riak at Scale Using the Riak API 2
  3. 3. There are 47 different NoSQL projects... Where does Riak fit in? 3
  4. 4. Riak is a Dynamo-inspired, open-sourced, key/value datastore built to scale predictably and easily. 4
  5. 5. Riak is a Dynamo-inspired open-sourced, key/value datastore built to scale predictably and easily. Your ops guy: calm, relaxed, and wearing a party hat.
  6. 6. What characteristics of Riak become important at different cluster sizes? 6
  7. 7. Single Box Riak • NoSQL - Key/Value, Flexible Schema • Clients in Ruby, Python, Javascript, Java, PHP, Erlang • Development Interface === Production Interface • Configurable Buckets - “A Profile is not an .mp3” • Links - Lightweight Data Relations 7
  8. 8. Small Riak Cluster (~3 boxes) • Distributed Queries for Performance / Capacity • Javascript-based Map/Reduce (mini-Hadoop) • Pre- and Post- Commit Hooks • Well-Behaved HTTP • nginx proxy config - http://gist.github.com/323048 • Protocol Buffers 8
  9. 9. Large Riak Cluster (10+ boxes) • Homogenous - No special nodes • Laugh in the face of machine failure • Scale by adding machines • Self-Contained Installation 9
  10. 10. Enterprise ($$$ / ~10’s of boxes) • On-Call Support 24x7x365 • Management Tools • SNMP Monitoring • Multi-site Replication 10
  11. 11. Enterprise ($$$ / ~10’s of boxes) • On-Call Support 24x7x365 • Management Tools • SNMP Monitoring • Multi-site Replication 11
  12. 12. Tutorial Get Riak Connect with a Client Store Data Store an Object with Links Linkwalking Map/Reduce 12
  13. 13. Get Riak Download http://downloads.basho.com/riak Start Riak cd riak bin/riak start 13
  14. 14. Connect with Python # Code is at http://hg.basho.com import riak # Connect client = riak.RiakClient('127.0.0.1', 8098) 14
  15. 15. Store Data mybucket = client.bucket('mybucket') # Create an object... obj = mybucket.new('myobject') obj.set_data({ 'foo' : 1, 'bar' : 2 }) obj.store() # Read the object... obj = mybucket.get('myobject') print obj.get_data() # Or, open a web browser... http://127.0.0.1:8098/riak/mybucket/myobject 15
  16. 16. Store an Object with Links bands = client.bucket('bands') albums = client.bucket('albums') members = client.bucket('members') # Store a band, link to album and members... obj = bands.new('Winger') .add_link(albums.new('Pull', 1275922).store()) .add_link(albums.new('IV', 542731).store()) .add_link(albums.new('Karma', 200170).store()) .add_link(members.new('Kip Winger').store()) .add_link(members.new('Reb Beach').store()) .add_link(members.new('John Roth').store()) .add_link(members.new('Rod M.').store()) .store() 16
  17. 17. Linkwalking # Get the albums... albums = obj.link('albums').run() # Get the songs (assumes data is present)... songs = obj.link('albums').link('songs').run() # Get the members... members = riak.MapReduce(client) .add('bands', 'Winger') .link('members') .run() 17
  18. 18. Map/Reduce # Count the number of sales... result = obj .link('albums') .map("function(v) { return [v.values[0].data]; }") .reduce("Riak.reduceSum") .run() 18
  19. 19. Thanks! Questions? Next Steps Read more at http://wiki.basho.com Download binaries from http://downloads.basho.com Get source code from http://hg.basho.com Join the public mailing list at riak-users@lists.basho.com Mailing list archives at http://riak.markmail.org Thanks! Rusty Klophaus (@rklophaus) 19
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