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.
3. There are 47 different
NoSQL projects...
Where does Riak fit in?
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4. Riak is a Dynamo-inspired,
open-sourced, key/value datastore
built to scale predictably and easily.
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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.
9. Large Riak Cluster (10+ boxes)
• Homogenous - No special nodes
• Laugh in the face of machine failure
• Scale by adding machines
• Self-Contained Installation
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14. Connect with Python
# Code is at http://hg.basho.com
import riak
# Connect
client = riak.RiakClient('127.0.0.1', 8098)
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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
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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()
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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()
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18. Map/Reduce
# Count the number of sales...
result = obj
.link('albums')
.map("function(v) { return [v.values[0].data]; }")
.reduce("Riak.reduceSum")
.run()
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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)
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