Impala supports several familiar file formats used in Apache Hadoop. Impala can load and query data files produced by other Hadoop components such as Pig or MapReduce, and data files produced by Impala can be used by other components also. 6 more words
Tags » Compression
Recently while working on a customer project, we were required to zip and unzip hundreds of files of varying size. The objective was to import IIS Logs from over 100+ servers to Microsoft Analytics platform system for further analytics. 488 more words
The fundamental controls of a compressor are Threshold and Ratio. The fundamental effect these controls bring about is Gain Reduction.
As the first step, we can understand the simple mathematics behind how this works through something we understand well already. 505 more words