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Scalable real time state update with Storm groupBy / persistentAggregate / IBackingMap | Svend
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- We upped the number of file descriptors since we have lots of topics and lots of connections.
- We upped the max socket buffer size to enable high-performance data transfer between data centers
- We generally feel that the guarantees provided by replication are stronger than sync to local disk, however the paranoid still may prefer having both and application level fsync policies are still supported.
- JMZ and the 4 letter commands
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Stream Processing and Mining just got more interesting - Data