Meteor and friends
- full-stack javascript
- database sync across clients
- use the database query syntax directly
- client-side cache
- latency compensation (optimistic UI updates)
- RPC protocol
- Query the initial result into working set
- Tail MongoDB replication log
- Analyze every operation matching our set
- Refetch the document in question or apply the change
- Gracefully handle race conditions
- Refetch the whole query if the log is too far ahead
- Proxy/filter replication log in a separate process
Oplog strategy
filtering, ordering, limits, projections
almost every Mongo operator is supported
Meteor and MongoDB Oplog
http://youtu.be/_dzX_LEbZyI
Meteor and Redis
http://youtu.be/-Vnb8tjnE3k
- Miniredis
- strings,lists, maps
- Key-Value notifications to get updates about changes
- No filtering or querying
Match your DB with Meteor!
- Build the realtime driver
- Build the front-end cache
- Glue them with DDP and RPCs
- ???
- PROFIT
... or teach it speak DDP
