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Real-Time Hadoop queries will be a reality in 2013 thanks to two new projects from Cloudera: Impala and Trevni.
Impala is the open source version of Dremel, Google’s proprietary big data query solution. A first beta is available and the production version is foreseen for Q1 2013.
Impala allows you to run real-time queries on top of Hadoop’s HDFS, Hbase and Hive. No migrations necessary.
However the real revolution will only get better when Doug Cutting [the creator of Lucene, Hadoop, etc.]‘s Trevni is integrated into Impala. Trevni is a new columnar data storage format that promises superior performance for reading large columnar stored data sets.
Impala + Trevni is promising real-time big data queries with multiple joins that are on par in performance but have more functionality than Google’s Dremel…
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