Cursor Internal of MongoDB
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Cursor Internal of MongoDB

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Dive into Client Cursor of MongoDB....

Dive into Client Cursor of MongoDB.

We red DBClientCursor, FilteringClientCursor, SerialServerClusterdCursor and ParallelSortClusterdCursor.

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Transcript

  • 1. Cursor Internal 2011/10/18 @repeatedly
  • 2. •D• MongoDB D• http://wiki.mongodb.jp/hacking_guide/bson • prz
  • 3. • MongoDB • DB • •
  • 4. • DBClient / ScopedDBConnection / etc... • • auto_ptr<DBClientCursor> query(...)•
  • 5. Interface• virtual bool more(); • true •• virtual BSONObj next(); •
  • 6. DBClientCursor• Interface • • ungetc• BatchIterator …
  • 7. ClusterdCursor• (Sharding) • SerialServerClusterdCursor • ParallelSortClusterdCursor• FilteringClientCursor
  • 8. SerialServerClusterd• • •• Mongo
  • 9. ParallelSortClusterd• Sharding • • Sort• s/shard_strategy.cpp
  • 10. • MongoDB•• Ruby …• DB
  • 11. http://longgate.co.jp/books/ grimoire-vol2.html