How will Google's Dremel change future Hadoop releases?
Answer (1 of 7): The architecture of Dremel is quite similar to the architecture of Pig and Hive. All three have a columnar layout for persistent data [7], a metadata repository, a query execution engine, a physical planner, a logical planner, and a query parser for a higher-level query language....
Dremel: Interactive Analysis of Web-Scale Datasets
The document describes Dremel, an interactive analysis system for web-scale datasets. Dremel uses a columnar data storage model and tree-based query serving architecture to enable interactive analysis of trillion record datasets distributed across thousands of nodes. It provides an SQL-like interface and can process queries orders of magnitude faster than traditional MapReduce systems by avoiding
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