GitHub user ravipesala opened a pull request:
https://github.com/apache/carbondata/pull/1810
[WIP]Store carbondata locations in datamap to make the datamap retrieval
faster
Currently carbondata locations are getting from namenode for each query and
that makes queries slower. So this PR stores the block locations while loading
datamap and retrieves from it.
Be sure to do all of the following checklist to help us incorporate
your contribution quickly and easily:
- [X] Any interfaces changed?
- [X] Any backward compatibility impacted?
- [X] Document update required?
- [X] Testing done
- [X] For large changes, please consider breaking it into sub-tasks under
an umbrella JIRA.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ravipesala/incubator-carbondata datamap-perf
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/1810.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1810
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commit 7b2ce4c58e688f6115bdbc382a1f95a9a3004f5f
Author: ravipesala <ravi.pesala@...>
Date: 2018-01-16T08:07:50Z
Store carbondata locations in datamap to make the datamap retrieval faster.
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