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Introduction to Riak and Ripple (KC.rb)

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This document provides an introduction to Riak and Ripple. It summarizes that Riak is a distributed key-value store inspired by Amazon Dynamo that allows scaling by adding more machines. It stores data in buckets and uses JavaScript for MapReduce functions. The document demonstrates basic usage of the Riak client and RObject in Ruby, and explains how links enable lightweight relationships between objects and can be traversed through link walking. It also provides an example of a MapReduce function in JavaScript.

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Introduction to Riak & Ripple Sean Cribbs basho Developer Advocate
Introduction to Riak & Ripple Sean Cribbs basho Developer Advocate Rubyist, Evangelist, Support Monkey
Riak @10,000 ft.
Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly
Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly • Key-Value / Document
Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly • Key-Value / Document • Schema-less, content-agnostic
Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly • Key-Value / Document • Schema-less, content-agnostic • Web-friendly HTTP, JSON, Javascript
Dynamo-like Scalability
Dynamo-like Scalability • To get...
Dynamo-like Scalability • To get... • more storage,
Dynamo-like Scalability • To get... • more storage, • more throughput,
Dynamo-like Scalability • To get... • more storage, • more throughput, • lower latency...
Dynamo-like Scalability • To get... • more storage, • more throughput, • lower latency... • ...add more machines. aka horizontal & linear
Key-Value++
Key-Value++ • Data objects are identified by keys, and have metadata
Key-Value++ • Data objects are identified by keys, and have metadata • Keys are grouped in buckets
Key-Value++ • Data objects are identified by keys, and have metadata • Keys are grouped in buckets • Links enable lightweight relationships
Key-Value++ • Data objects are identified by keys, and have metadata • Keys are grouped in buckets • Links enable lightweight relationships • Query with MapReduce
Sans-Schema
Sans-Schema • Buckets created on the fly
Sans-Schema • Buckets created on the fly • Values are opaque
Sans-Schema • Buckets created on the fly • Values are opaque •Content-Type matters
Sans-Schema • Buckets created on the fly • Values are opaque •Content-Type matters •The application defines the semantics: more flexibility, more responsibility
Web-Friendly
Web-Friendly •HTTP is primary interface
Web-Friendly •HTTP is primary interface •JSON is used for structured data
Web-Friendly •HTTP is primary interface •JSON is used for structured data •Javascript is used for MapReduce functions
Web-Friendly •HTTP is primary interface •JSON is used for structured data •Javascript is used for MapReduce functions •Plays well with Varnish, Squid, HAProxy, F5, etc.
Web-Friendly •HTTP is primary interface •JSON is used for structured data •Javascript is used for MapReduce functions •Plays well with Varnish, Squid, HAProxy, F5, etc. [see also Webmachine]
Use Cases
Use Cases •Document storage (sparse structure)
Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon)
Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon) •Session storage
Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon) •Session storage •Distributed cache
Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon) •Session storage •Distributed cache • Browser-only/Mobile Apps
Getting Started
Getting Started • Download a package from http://downloads.basho.com
Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs
Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs • Start up the node
Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs • Start up the node • Join a cluster
Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs • Start up the node • Join a cluster • Start storing/retrieving values
Riak in Ruby
Riak in Ruby • Three gems
Riak in Ruby • Three gems • riak-client (basic ops)
Riak in Ruby • Three gems • riak-client (basic ops) • ripple (ODM)
Riak in Ruby • Three gems • riak-client (basic ops) • ripple (ODM) • riak-sessions (Rack/Rails session stores)
Riak in Ruby • Three gems • riak-client (basic ops) • ripple (ODM) • riak-sessions (Rack/Rails session stores) • All HTTP - Protobuffs coming
require ‘riak’
require ‘riak’ • Make a client object client = Riak::Client.new
require ‘riak’ • Make a client object client = Riak::Client.new • Get a bucket bucket = client.bucket(‘foo’) # Riak::Bucket
require ‘riak’ • Make a client object client = Riak::Client.new • Get a bucket bucket = client.bucket(‘foo’) # Riak::Bucket • Get an object from the bucket obj = bucket.get(‘bar’) # Riak::RObject
require ‘riak’ • Make a client object client = Riak::Client.new • Get a bucket bucket = client.bucket(‘foo’) # Riak::Bucket • Get an object from the bucket obj = bucket.get(‘bar’) # Riak::RObject • Initialize a new object obj = bucket.new(‘baz’)
Riak::RObject
Riak::RObject •Get/set object key obj.key = “bar”
Riak::RObject •Get/set object key obj.key = “bar” •Get/set content-type obj.content_type = ‘application/json’
Riak::RObject •Get/set object key obj.key = “bar” •Get/set content-type obj.content_type = ‘application/json’ •Get/set the object body data obj.data = {“name” => “Sean”}
Riak::RObject •Get/set object key obj.key = “bar” •Get/set content-type obj.content_type = ‘application/json’ •Get/set the object body data obj.data = {“name” => “Sean”} •Store the object obj.store
More RObject
More RObject •Get object’s bucket obj.bucket
More RObject •Get object’s bucket obj.bucket •Delete the object obj.delete # freezes the object
More RObject •Get object’s bucket obj.bucket •Delete the object obj.delete # freezes the object •Detect/extract siblings (more later) obj.conflict? && obj.siblings # Array<RObject>
More RObject •Get object’s bucket obj.bucket •Delete the object obj.delete # freezes the object •Detect/extract siblings (more later) obj.conflict? && obj.siblings # Array<RObject> •Follow/traverse links (more later) obj.walk(:tag => “friend”)
Riak::Bucket
Riak::Bucket •Set the replication factor bucket.n_val = 5
Riak::Bucket •Set the replication factor bucket.n_val = 5 •Set default request quorums bucket.r = 3 # w,dw,rw # number or one/all/quorum
Riak::Bucket •Set the replication factor bucket.n_val = 5 •Set default request quorums bucket.r = 3 # w,dw,rw # number or one/all/quorum •List keys bucket.keys # pass block to stream
Riak::Bucket •Set the replication factor bucket.n_val = 5 •Set default request quorums bucket.r = 3 # w,dw,rw # number or one/all/quorum •List keys bucket.keys # pass block to stream •Set consistency flag (allow sibling generation) obj.allow_mult = true
Links: Lightweight Relationships
Link Header Link: </riak/demo/test1>; riaktag=”userinfo”
Link Header bucket Link: </riak/demo/test1>; riaktag=”userinfo”
Link Header bucket Link: </riak/demo/test1>; riaktag=”userinfo” key
Link Header bucket tag Link: </riak/demo/test1>; riaktag=”userinfo” key
Links in Ruby API
Links in Ruby API • Create a link Riak::Link.new(“/riak/bucket/key”, “tag”)
Links in Ruby API • Create a link Riak::Link.new(“/riak/bucket/key”, “tag”) • Read an#object’s links obj.links Set<Riak::Link>
Links in Ruby API • Create a link Riak::Link.new(“/riak/bucket/key”, “tag”) • Read an#object’s links obj.links Set<Riak::Link> • Convert<< obj2.to_link(“next”) obj.links an object to a link obj.store
Link-Walking
Link-Walking • Asks Riak to traverse a sequence of links via special URL
Link-Walking • Asks Riak to traverse a sequence of links via special URL • Filter by bucket/tag
Link-Walking • Asks Riak to traverse a sequence of links via special URL • Filter by bucket/tag • Can return results from intermediate traversals
Link-Walking • Asks Riak to traverse a sequence of links via special URL • Filter by bucket/tag • Can return results from intermediate traversals • Response is nested multipart/mixed (riak-client handles this for you)
L/W Example
L/W Example GET /riak/demo/test1/_,friend,1 Start at demo/test1, follow all links tagged “friend” and return the objects obj = client[‘demo’][‘test1’] obj.walk(:tag => “friend”,:keep => true)
L/W Example GET /riak/demo/test1/_,friend,1 Start at demo/test1, follow all links tagged “friend” and return the objects obj = client[‘demo’][‘test1’] obj.walk(:tag => “friend”,:keep => true)
L/W Example
L/W Example GET /riak/demo/test1/_,_,_/_,_,1 Start at demo/test1, follow all links, follow all links from those, return everything from the last set obj.walk({},{:keep => true})
Map-Reduce
list of keys Map-Reduce
list of keys map map map map map Map-Reduce
list of keys map map map map map reduce Map-Reduce
list of keys map map map map map reduce results Map-Reduce
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript Riak object function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript Riak object function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) { {         if(object[field] != arg[field]) {             return []; bucket:”foo”,         } key:”bar”,     } vclock:”...”,     return [object]; } values:[ {metadata:{...}, data:”....”} ] }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript Key-specific data function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript Phase- specific data function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) { Parse JSON data     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     } Check field equality     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return []; Return nothing if unequal         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; Return the object if all equal }
Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
Reduce in Javascript Map results function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
Reduce in Javascript Phase- specific data function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); Custom sort on }
Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); } Reduce potentially called multiple times!!
Example Query
Example Query {“inputs”: “goog”, “query”: [{“map”:{“language”:”javascript”, “name”: “App.findHighGreater”, “arg”: 600.0, “keep”: false}, {“reduce”:{“language”:”javascript”, “name”: “Riak.reduceMax”, “keep”: true}]}
Example Query {“inputs”: “goog”, “query”: [{“map”:{“language”:”javascript”, “name”: “App.findHighGreater”, “arg”: 600.0, “keep”: false}, {“reduce”:{“language”:”javascript”, “name”: “Riak.reduceMax”, “keep”: true}]} Riak::MapReduce.new(c).add(‘goog’). map(‘App.findHighGreater’, :arg => 600.0). reduce(“Riak.reduceMax”, :keep => true).run
Built-in Functions
Built-in Functions • Riak.mapValues
Built-in Functions • Riak.mapValues • Riak.mapValuesJson
Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields
Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields • Riak.reduceSum
Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields • Riak.reduceSum • Riak.reduceSort
Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields • Riak.reduceSum • Riak.reduceSort • Riak.reduceMin/reduceMax
Ripple - ODM
Document Models class Person include Ripple::Document property :name, String, :presence => true many :addresses many :friends, :class => Person end class Address include Ripple::EmbeddedDocument property :street, String end
Rails Setup
Rails Setup # Gemfile gem 'curb' # Faster HTTP gem 'yajl-ruby' # Faster JSON gem 'ripple'
Rails Setup # Gemfile gem 'curb' # Faster HTTP gem 'yajl-ruby' # Faster JSON gem 'ripple'
Rails Setup # Gemfile gem 'curb' # Faster HTTP gem 'yajl-ruby' # Faster JSON gem 'ripple' $ gem install curb yajl-ruby ripple
Rails Setup (cont.)
Rails Setup (cont.) # config/ripple.yml development: host: 127.0.0.1 port: 8098
Rails Setup (cont.) # config/ripple.yml development: host: 127.0.0.1 port: 8098 # config/application.rb require 'ripple/railtie'
Ripple Roadmap
Ripple Roadmap • Testing server (edge on Github)
Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support
Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support • Streaming MapReduce
Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support • Streaming MapReduce • Ripple-specific built-ins
Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support • Streaming MapReduce • Ripple-specific built-ins • Better ActionView support (form_for)
Happy Fun Demo Time
Plug basho
Plug Interested in learning about support, consulting, or Enterprise features? basho
Plug Interested in learning about support, consulting, or Enterprise features? Email info@basho.com or go to http://www.basho.com/ contact.html to talk with us. basho
Plug Interested in learning about support, consulting, or Enterprise features? Email info@basho.com or go to http://www.basho.com/ contact.html to talk with us. basho
Plug Interested in learning about support, consulting, or Enterprise features? Email info@basho.com or go to http://www.basho.com/ contact.html to talk with us. www.basho.com sean@basho.com @seancribbs basho
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Introduction to Riak and Ripple (KC.rb)

  • 1. Introduction to Riak & Ripple Sean Cribbs basho Developer Advocate
  • 2. Introduction to Riak & Ripple Sean Cribbs basho Developer Advocate Rubyist, Evangelist, Support Monkey
  • 4. Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly
  • 5. Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly • Key-Value / Document
  • 6. Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly • Key-Value / Document • Schema-less, content-agnostic
  • 7. Riak @10,000 ft. • Amazon Dynamo-inspired replicated, distributed, fault-tolerant, masterless, scalable, operations-friendly • Key-Value / Document • Schema-less, content-agnostic • Web-friendly HTTP, JSON, Javascript
  • 9. Dynamo-like Scalability • To get...
  • 10. Dynamo-like Scalability • To get... • more storage,
  • 11. Dynamo-like Scalability • To get... • more storage, • more throughput,
  • 12. Dynamo-like Scalability • To get... • more storage, • more throughput, • lower latency...
  • 13. Dynamo-like Scalability • To get... • more storage, • more throughput, • lower latency... • ...add more machines. aka horizontal & linear
  • 15. Key-Value++ • Data objects are identified by keys, and have metadata
  • 16. Key-Value++ • Data objects are identified by keys, and have metadata • Keys are grouped in buckets
  • 17. Key-Value++ • Data objects are identified by keys, and have metadata • Keys are grouped in buckets • Links enable lightweight relationships
  • 18. Key-Value++ • Data objects are identified by keys, and have metadata • Keys are grouped in buckets • Links enable lightweight relationships • Query with MapReduce
  • 21. Sans-Schema • Buckets created on the fly • Values are opaque
  • 22. Sans-Schema • Buckets created on the fly • Values are opaque •Content-Type matters
  • 23. Sans-Schema • Buckets created on the fly • Values are opaque •Content-Type matters •The application defines the semantics: more flexibility, more responsibility
  • 26. Web-Friendly •HTTP is primary interface •JSON is used for structured data
  • 27. Web-Friendly •HTTP is primary interface •JSON is used for structured data •Javascript is used for MapReduce functions
  • 28. Web-Friendly •HTTP is primary interface •JSON is used for structured data •Javascript is used for MapReduce functions •Plays well with Varnish, Squid, HAProxy, F5, etc.
  • 29. Web-Friendly •HTTP is primary interface •JSON is used for structured data •Javascript is used for MapReduce functions •Plays well with Varnish, Squid, HAProxy, F5, etc. [see also Webmachine]
  • 31. Use Cases •Document storage (sparse structure)
  • 32. Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon)
  • 33. Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon) •Session storage
  • 34. Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon) •Session storage •Distributed cache
  • 35. Use Cases •Document storage (sparse structure) •Distributed file storage (small size, large soon) •Session storage •Distributed cache • Browser-only/Mobile Apps
  • 37. Getting Started • Download a package from http://downloads.basho.com
  • 38. Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs
  • 39. Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs • Start up the node
  • 40. Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs • Start up the node • Join a cluster
  • 41. Getting Started • Download a package from http://downloads.basho.com • Set the node name, IPs • Start up the node • Join a cluster • Start storing/retrieving values
  • 43. Riak in Ruby • Three gems
  • 44. Riak in Ruby • Three gems • riak-client (basic ops)
  • 45. Riak in Ruby • Three gems • riak-client (basic ops) • ripple (ODM)
  • 46. Riak in Ruby • Three gems • riak-client (basic ops) • ripple (ODM) • riak-sessions (Rack/Rails session stores)
  • 47. Riak in Ruby • Three gems • riak-client (basic ops) • ripple (ODM) • riak-sessions (Rack/Rails session stores) • All HTTP - Protobuffs coming
  • 49. require ‘riak’ • Make a client object client = Riak::Client.new
  • 50. require ‘riak’ • Make a client object client = Riak::Client.new • Get a bucket bucket = client.bucket(‘foo’) # Riak::Bucket
  • 51. require ‘riak’ • Make a client object client = Riak::Client.new • Get a bucket bucket = client.bucket(‘foo’) # Riak::Bucket • Get an object from the bucket obj = bucket.get(‘bar’) # Riak::RObject
  • 52. require ‘riak’ • Make a client object client = Riak::Client.new • Get a bucket bucket = client.bucket(‘foo’) # Riak::Bucket • Get an object from the bucket obj = bucket.get(‘bar’) # Riak::RObject • Initialize a new object obj = bucket.new(‘baz’)
  • 54. Riak::RObject •Get/set object key obj.key = “bar”
  • 55. Riak::RObject •Get/set object key obj.key = “bar” •Get/set content-type obj.content_type = ‘application/json’
  • 56. Riak::RObject •Get/set object key obj.key = “bar” •Get/set content-type obj.content_type = ‘application/json’ •Get/set the object body data obj.data = {“name” => “Sean”}
  • 57. Riak::RObject •Get/set object key obj.key = “bar” •Get/set content-type obj.content_type = ‘application/json’ •Get/set the object body data obj.data = {“name” => “Sean”} •Store the object obj.store
  • 59. More RObject •Get object’s bucket obj.bucket
  • 60. More RObject •Get object’s bucket obj.bucket •Delete the object obj.delete # freezes the object
  • 61. More RObject •Get object’s bucket obj.bucket •Delete the object obj.delete # freezes the object •Detect/extract siblings (more later) obj.conflict? && obj.siblings # Array<RObject>
  • 62. More RObject •Get object’s bucket obj.bucket •Delete the object obj.delete # freezes the object •Detect/extract siblings (more later) obj.conflict? && obj.siblings # Array<RObject> •Follow/traverse links (more later) obj.walk(:tag => “friend”)
  • 64. Riak::Bucket •Set the replication factor bucket.n_val = 5
  • 65. Riak::Bucket •Set the replication factor bucket.n_val = 5 •Set default request quorums bucket.r = 3 # w,dw,rw # number or one/all/quorum
  • 66. Riak::Bucket •Set the replication factor bucket.n_val = 5 •Set default request quorums bucket.r = 3 # w,dw,rw # number or one/all/quorum •List keys bucket.keys # pass block to stream
  • 67. Riak::Bucket •Set the replication factor bucket.n_val = 5 •Set default request quorums bucket.r = 3 # w,dw,rw # number or one/all/quorum •List keys bucket.keys # pass block to stream •Set consistency flag (allow sibling generation) obj.allow_mult = true
  • 69. Link Header Link: </riak/demo/test1>; riaktag=”userinfo”
  • 70. Link Header bucket Link: </riak/demo/test1>; riaktag=”userinfo”
  • 71. Link Header bucket Link: </riak/demo/test1>; riaktag=”userinfo” key
  • 72. Link Header bucket tag Link: </riak/demo/test1>; riaktag=”userinfo” key
  • 74. Links in Ruby API • Create a link Riak::Link.new(“/riak/bucket/key”, “tag”)
  • 75. Links in Ruby API • Create a link Riak::Link.new(“/riak/bucket/key”, “tag”) • Read an#object’s links obj.links Set<Riak::Link>
  • 76. Links in Ruby API • Create a link Riak::Link.new(“/riak/bucket/key”, “tag”) • Read an#object’s links obj.links Set<Riak::Link> • Convert<< obj2.to_link(“next”) obj.links an object to a link obj.store
  • 78. Link-Walking • Asks Riak to traverse a sequence of links via special URL
  • 79. Link-Walking • Asks Riak to traverse a sequence of links via special URL • Filter by bucket/tag
  • 80. Link-Walking • Asks Riak to traverse a sequence of links via special URL • Filter by bucket/tag • Can return results from intermediate traversals
  • 81. Link-Walking • Asks Riak to traverse a sequence of links via special URL • Filter by bucket/tag • Can return results from intermediate traversals • Response is nested multipart/mixed (riak-client handles this for you)
  • 83. L/W Example GET /riak/demo/test1/_,friend,1 Start at demo/test1, follow all links tagged “friend” and return the objects obj = client[‘demo’][‘test1’] obj.walk(:tag => “friend”,:keep => true)
  • 84. L/W Example GET /riak/demo/test1/_,friend,1 Start at demo/test1, follow all links tagged “friend” and return the objects obj = client[‘demo’][‘test1’] obj.walk(:tag => “friend”,:keep => true)
  • 86. L/W Example GET /riak/demo/test1/_,_,_/_,_,1 Start at demo/test1, follow all links, follow all links from those, return everything from the last set obj.walk({},{:keep => true})
  • 89. list of keys map map map map map Map-Reduce
  • 90. list of keys map map map map map reduce Map-Reduce
  • 91. list of keys map map map map map reduce results Map-Reduce
  • 92. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 93. Map in Javascript Riak object function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 94. Map in Javascript Riak object function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) { {         if(object[field] != arg[field]) {             return []; bucket:”foo”,         } key:”bar”,     } vclock:”...”,     return [object]; } values:[ {metadata:{...}, data:”....”} ] }
  • 95. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 96. Map in Javascript Key-specific data function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 97. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 98. Map in Javascript Phase- specific data function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 99. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 100. Map in Javascript function(value, keyData, arg) { Parse JSON data     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 101. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 102. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     } Check field equality     return [object]; }
  • 103. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 104. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return []; Return nothing if unequal         }     }     return [object]; }
  • 105. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 106. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; Return the object if all equal }
  • 107. Map in Javascript function(value, keyData, arg) {     var object = Riak.mapValuesJson(value)[0];     for(field in arg) {         if(object[field] != arg[field]) {             return [];         }     }     return [object]; }
  • 108. Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
  • 109. Reduce in Javascript Map results function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
  • 110. Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
  • 111. Reduce in Javascript Phase- specific data function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
  • 112. Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
  • 113. Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); Custom sort on }
  • 114. Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); }
  • 115. Reduce in Javascript function(values,arg) {     return values.sort(function(a,b){ return a[arg] - b[arg]; }); } Reduce potentially called multiple times!!
  • 117. Example Query {“inputs”: “goog”, “query”: [{“map”:{“language”:”javascript”, “name”: “App.findHighGreater”, “arg”: 600.0, “keep”: false}, {“reduce”:{“language”:”javascript”, “name”: “Riak.reduceMax”, “keep”: true}]}
  • 118. Example Query {“inputs”: “goog”, “query”: [{“map”:{“language”:”javascript”, “name”: “App.findHighGreater”, “arg”: 600.0, “keep”: false}, {“reduce”:{“language”:”javascript”, “name”: “Riak.reduceMax”, “keep”: true}]} Riak::MapReduce.new(c).add(‘goog’). map(‘App.findHighGreater’, :arg => 600.0). reduce(“Riak.reduceMax”, :keep => true).run
  • 122. Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields
  • 123. Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields • Riak.reduceSum
  • 124. Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields • Riak.reduceSum • Riak.reduceSort
  • 125. Built-in Functions • Riak.mapValues • Riak.mapValuesJson • Riak.mapByFields • Riak.reduceSum • Riak.reduceSort • Riak.reduceMin/reduceMax
  • 127. Document Models class Person include Ripple::Document property :name, String, :presence => true many :addresses many :friends, :class => Person end class Address include Ripple::EmbeddedDocument property :street, String end
  • 129. Rails Setup # Gemfile gem 'curb' # Faster HTTP gem 'yajl-ruby' # Faster JSON gem 'ripple'
  • 130. Rails Setup # Gemfile gem 'curb' # Faster HTTP gem 'yajl-ruby' # Faster JSON gem 'ripple'
  • 131. Rails Setup # Gemfile gem 'curb' # Faster HTTP gem 'yajl-ruby' # Faster JSON gem 'ripple' $ gem install curb yajl-ruby ripple
  • 133. Rails Setup (cont.) # config/ripple.yml development: host: 127.0.0.1 port: 8098
  • 134. Rails Setup (cont.) # config/ripple.yml development: host: 127.0.0.1 port: 8098 # config/application.rb require 'ripple/railtie'
  • 136. Ripple Roadmap • Testing server (edge on Github)
  • 137. Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support
  • 138. Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support • Streaming MapReduce
  • 139. Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support • Streaming MapReduce • Ripple-specific built-ins
  • 140. Ripple Roadmap • Testing server (edge on Github) • Protocol Buffers support • Streaming MapReduce • Ripple-specific built-ins • Better ActionView support (form_for)
  • 143. Plug Interested in learning about support, consulting, or Enterprise features? basho
  • 144. Plug Interested in learning about support, consulting, or Enterprise features? Email info@basho.com or go to http://www.basho.com/ contact.html to talk with us. basho
  • 145. Plug Interested in learning about support, consulting, or Enterprise features? Email info@basho.com or go to http://www.basho.com/ contact.html to talk with us. basho
  • 146. Plug Interested in learning about support, consulting, or Enterprise features? Email info@basho.com or go to http://www.basho.com/ contact.html to talk with us. www.basho.com sean@basho.com @seancribbs basho