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CouchDB Day NYC 2017: Replication

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The concept of data movement lies at the heart of Apache CouchDB. CouchDB’s replication protocol lets developers synchronize copies of their data to remote CouchDB-based systems – including Cloudant – at the push of a button. Replication jobs can also run continuously, and in both directions.

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CouchDB Day NYC 2017: Replication

  1. 1. Lab: Replication (30 minutes) Bradley Holt, Developer Advocate Thursday, February 9, 2017 CouchDB Developer Day @BradleyHolt
  2. 2. Peer-to-Peer Replication @BradleyHolt Cloudant SyncCouchDB PouchDB CouchDB Replication Protocol CouchDB
  3. 3. http-console $ npm install http-console -g @BradleyHolthttps://github.com/cloudhead/http-console
  4. 4. http-console $ npm install http-console -g $ http-console 127.0.0.1:5984 @BradleyHolthttps://github.com/cloudhead/http-console
  5. 5. http-console $ npm install http-console -g $ http-console 127.0.0.1:5984 > http-console 0.6.3 > Welcome, enter .help if you're lost. > Connecting to 127.0.0.1 on port 5984. @BradleyHolthttps://github.com/cloudhead/http-console
  6. 6. Connecting to CouchDB 2.0 $ http-console root:passw0rd@127.0.0.1:5984 --json @BradleyHolt
  7. 7. Connecting to CouchDB 2.0 $ http-console root:passw0rd@127.0.0.1:5984 --json > http-console 0.6.3 > Welcome, enter .help if you're lost. > Connecting to 127.0.0.1 on port 5984. @BradleyHolt
  8. 8. Connecting to IBM Cloudant $ http-console https://bradley-holt:passw0rd@bradley-holt.cloudant.com --json @BradleyHolt
  9. 9. Connecting to IBM Cloudant $ http-console https://bradley-holt:passw0rd@bradley-holt.cloudant.com --json > http-console 0.6.3 > Welcome, enter .help if you're lost. > Connecting to bradley-holt.cloudant.com on port 443. @BradleyHolt
  10. 10. Replication /> @BradleyHolt
  11. 11. Replication /> POST /_replicate @BradleyHolt
  12. 12. Replication /> POST /_replicate ... @BradleyHolt
  13. 13. Replication /> POST /_replicate ... { "create_target": true, "source": "https://bradley-holt.cloudant.com/kittens", "target": "kittens" } @BradleyHolt
  14. 14. Replication /> POST /_replicate ... { "create_target": true, "source": "https://bradley-holt.cloudant.com/kittens", "target": "kittens" } HTTP/1.1 200 OK Content-Type: application/json { ok: true, session_id: '9f7bd286a0001ece5bf0bf65dd83c5ab', source_last_seq: '5- g1AAAAFDeJzLYWBgYMlgTmGQT0lKzi9KdUhJMtVLykxPyilN1UvOyS9NScwr0ctLLckBKmRKZEiy____f1 YiA6oWQ9xakhyAZFI9SFcGcyJzLpDHbplmZmxkaULYBKIdlscCJBkagBTQov2kuA- i8wBEJ9iNTGA3mhoampmnGBA2JQsA1LtoyA', … } @BradleyHolt
  15. 15. Try It On Your Own 1. Create database test_1 2. Create database test_2 3. Set up continuous replication from the test_1 database to the test_2 database 4. Create a document in the test_1 database 5. Confirm that the document has been replicated to the test_2 database 6. Delete the test_1 and the test_2 databases @BradleyHolt
  16. 16. Lab: Replication CouchDB Developer Day @BradleyHolt

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