January 2017
Intermediate to advanced
350 pages
7h 8m
English
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Bulk utilities
The process for loading data using Bulk utilities is very similar:
- Extracting data from the source.
- Transforming the data into HFiles.
- Loading the files into HBase by guiding the region servers as to where to find them.
Getting ready...
The following points have to be remembered when using Bulk utilities:
- HBase/Hadoop cluster with MapReduce/Yarn should be running. You can run jps to check it.
- Access rights (user/group) are needed to execute the program.
- Table schema needs to be designed to the input structure.
- Split points need to be taken into consideration.
- The entire stack (compaction, split, block size, max file size, flush size, version compression, mem store size, block cache, garbage collections nproc, and so on) needs to be fine-tuned ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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