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CouchDB Apache Introduction to
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WHAT SETS COUCHDB APART FROM OTHER DATABASES?
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Joan Touzet
[email protected]
@wohali
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A database: The single origin of truth
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Then NoSQL happened
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What makes CouchDB special?
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CouchDB is more like git than Postgres
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master
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master secondary
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master …2ndary 2ndary 2ndary…
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master master
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master master master…
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CouchDB is not just a database It is a protocol
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The Couch Replication Protocol
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PouchDB
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A database in your browser
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TouchDB Couchbase Mobile
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1969-1997 (ish) 27
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Offline was the default. 28
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Online was slow, expensive, rare. 29
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Online was slow, expensive, rare. 30
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Design pattern: Store and Forward Plan 55-A message switching systems 31
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Design pattern: Store and Forward Unix to Unix Copy (UUCP) Network News Transfer Protocol (NNTP) Simple Mail Transport Protocol (SMTP) 32
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DETAILS
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HTTP
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JSON DOCUMENTS
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REPLICATION
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_changes
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VIEWS
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R O B U S T
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STORAGE
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CONCURRENCY
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RESUME
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THANKS!
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Questions?
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BONUS MATERIAL
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Conflicts
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❦ Conflict resolution by example A B
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❦ ❦ Conflict resolution by example A B
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❦ Conflict resolution by example A B ❦ ✿ ̇
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✿ ̇ Conflict resolution by example A B ̇
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✿ ̇ Conflict resolution by example A B ̇
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