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PrestoDB reflexions

Prestodb is a cool distributed engine over hadoop. It can be compared to hive LLAP, impala or apache DRILL for fast in-memory OLAP analysis and data discovery.

The main disadvantages it has right now are:

The main advantage it has over hive LLAP are:

Sor far, the best feet for our internal arhitecture is to go with hive llap in replacement to prestodb. This will brings us the ability to better integrate with hbase/phoenix/solr from one part, and also give us the ability to query ACID version of the DWH without data deduplication.

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