data.bythebay.io: Dinesh Narayanan, Building realtime efficient queries in an IOT platform

SAMI needs to ingest, serve and take realtime decisions at a large scale. In this talk we show briefly * How to build scalable queries using Cassandra, Redis and Elastic search. * High performance batch jobs using Apache parquet columnar storage format. * Trade offs between idempotent writes and Streaming counters real time.

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