Crosstalk Overview (Austin JavaScript/Node.js Meetup) - 2012-12-07
•
0 likes•884 views
The document discusses the Crosstalk framework for building modular, composable, and resilient distributed systems in JavaScript. Some key points include: - Crosstalk uses workers, primes, and gossip protocols to enable fault-tolerant distributed computing. - Workers can communicate through message passing and perform request-reply patterns. Security features allow restricting which workers can interact. - The framework includes APIs for building web services and using persistent storage. - Crosstalk is open source and available through NPM for building distributed systems and applications in JavaScript.
Recommended
More Related Content
Viewers also liked
Viewers also liked (20)
Similar to Crosstalk Overview (Austin JavaScript/Node.js Meetup) - 2012-12-07
Similar to Crosstalk Overview (Austin JavaScript/Node.js Meetup) - 2012-12-07 (20)
Recently uploaded
Recently uploaded (20)
Crosstalk Overview (Austin JavaScript/Node.js Meetup) - 2012-12-07
- 1. Crosstalk
- 2. The Internet is broken
- 3. The Internet is broken for non-programmers
- 8. Composability What skills do you need?
- 11. Fallacies of Distributed Computing ● the network is reliable ● latency isn't a problem ● bandwidth isn't a problem ● the network is secure ● topology won't change ● the administrator will know what to do ● transport cost isn't a problem ● the network is homogeneous ● the system is atomic/monolithic ● the system is finished ● business logic can and should be centralized
- 13. Internet Scale Distributed Systems Never Done
- 14. How should we design our composable distributed software system?
- 16. non-programmers
- 17. Crosstalk
- 18. The way you should be doing things should be easy and the way you shouldn't do things should be difficult. -- Ryan Dahl, original Node.js presentation, JSConf 2009
- 19. Crosstalk Modular - Composable - Resilient
- 20. Crosstalk Modular - Composable - Resilient in JavaScript
- 21. Terminology
- 26. Architecture
- 27. Crosstalk Swarm
- 28. Prime Prime Prime Prime Prime Prime Crosstalk Swarm Prime Prime Prime Prime Prime Prime Prime Prime
- 29. Every Prime lies on the "surface area"
- 30. Every Prime lies on the "surface area"
- 31. Gossip
- 32. Gossip
- 33. Gossip
- 34. Gossip
- 35. Gossip
- 36. Prime Lifecycle
- 37. Prime Lifecycle Let it crash
- 38. Φ accrual failure detection
- 39. Prime Lifecycle Let it Make it crash
- 40. Worker Lifecycle
- 41. Worker Lifecycle Let it crash
- 42. Worker Lifecycle Let it Make it crash
- 44. Getting things done i.e: building workers
- 47. Hello distributed world! "magic" global variable
- 48. Hello distributed world! "magic" global variable message name
- 49. Hello distributed world! function to execute when "magic" global variable message name a message arrives
- 50. Hello distributed world! function to execute when "magic" global variable message name a message arrives name of message to emit
- 52. Alice and a sandwich Alice worker #1 Alice worker #2
- 53. Alice and a sandwich it's just JavaScript Alice worker #1 Alice worker #2
- 54. Alice and a sandwich it's just JavaScript Alice worker #1 Alice worker #2 emit "sandwich" messages
- 55. Alice and a sandwich it's just JavaScript Alice worker #1 listen for "sandwich" messages Alice worker #2 emit "sandwich" messages
- 56. Alice and Bob Alice's worker Bob's worker
- 57. Alice and Bob Alice's worker public scope Bob's worker
- 58. Alice and Bob Alice's worker public scope Bob's worker addressed message
- 59. Alice and Bob address is omitted when declaring a Alice's worker message listener public scope Bob's worker addressed message
- 60. Alice and Bob using request-reply (1 of 2) Alice's worker
- 61. Alice and Bob using request-reply (1 of 2) Alice's worker addressed message
- 62. Alice and Bob using request-reply ( 2 of 2 ) Bob's worker
- 63. Alice and Bob using request-reply ( 2 of 2 ) address is omitted Bob's worker when declaring a message listener
- 64. Eve enters... ( 1 of 2 ) Eve's worker
- 65. Eve enters... ( 1 of 2 ) Eve's worker anyone can send Alice a message
- 66. Eve enters... ( 2 of 2 ) Alice's improved worker
- 67. Eve enters... ( 2 of 2 ) only messages from Alice's improved worker @bob (Bob) are processed
- 68. Eve-n better Alice's configuration file Alice's refactored worker
- 69. Eve-n better Alice's configuration file import Crosstalk functionality using CommonJS module Alice's refactored worker pattern
- 70. Eve-n better Alice's configuration file import Crosstalk functionality using CommonJS module Alice's refactored worker pattern factor out dependencies
- 71. Generic Bob ( 1 of 2 ) Carl's worker
- 72. Generic Bob ( 1 of 2 ) send data with your Carl's worker messages
- 73. Generic Bob ( 2 of 2 ) Previous Bob worker Generalized Bob worker
- 74. Generic Bob ( 2 of 2 ) Previous Bob worker Generalized Bob worker access data in messages
- 75. Generic Bob ( 2 of 2 ) Previous Bob worker Generalized Bob worker access data in messages
- 76. Generic Bob ( 2 of 2 ) Previous Bob worker Generalized Bob worker access data in messages
- 77. C-C-C-C-C-Callback! Bob worker using callback New Carl worker
- 78. C-C-C-C-C-Callback! Bob worker using callback callback will reply to sender New Carl worker
- 79. C-C-C-C-C-Callback! Bob worker using callback callback will reply to if sender provides it sender New Carl worker
- 80. C-C-C-C-C-Callback! Bob worker using callback callback will reply to if sender provides it sender New Carl worker by convention, the first parameter is always an error
- 81. C-C-C-C-C-Callback! Bob worker using callback callback will reply to if sender provides it sender New Carl worker by convention, the first second param is parameter is always an error the response
- 82. C-C-C-C-C-Callback! Bob worker using callback no error callback will reply to if sender provides it sender New Carl worker by convention, the first second param is parameter is always an error the response
- 83. C-C-C-C-C-Callback! Bob worker using callback sandwich response callback will reply to no error if sender provides it sender New Carl worker by convention, the first second param is parameter is always an error the response
- 84. Secure Callback More secure Carl worker
- 85. Secure Callback scope for the callback response More secure Carl worker
- 86. Secure Callback scope for the callback response only @bob can respond More secure Carl worker to this request
- 87. How many sandwiches? Alice's generic web sandwich worker
- 89. Node.js style HTTP request handler function
- 90. Node.js style HTTP request handler function built-in Crosstalk API for web services
- 91. Node.js style HTTP request handler function built-in Crosstalk API for web services subdomain (required)
- 92. Node.js style HTTP request handler function built-in Crosstalk API for web services subdomain (required) request listener (required)
- 93. Node.js style HTTP request handler function built-in Crosstalk API for web services subdomain (required) request listener (required)
- 94. How many secure sandwiches? Alice's https web sandwich worker
- 95. How many secure sandwiches? Alice's https web sandwich worker httpsOnly flag (optional)
- 97. Persistent sandwich another Crosstalk API
- 98. Persistent sandwich another Crosstalk API refactored dependencies
- 100. There's more...
- 101. Crosstalk runs on Crosstalk
- 102. Crosstalk Modular - Composable - Resilient in JavaScript
- 104. Crosstalk https://github.com/crosstalk npm install -g crosstalk-ide npm install -g crosstalk-cli