GitHub user xuchuanyin opened a pull request:
https://github.com/apache/carbondata/pull/2567
[CARBONDATA-2790][BloomDataMap]Optimize default parameter for bloomfilter
datamap
To provide better query performance for bloomfilter datamap by default,
we optimize bloom_size from 32000 to 640000 and optimize bloom_fpp from
0.01 to 0.00001.
Be sure to do all of the following checklist to help us incorporate
your contribution quickly and easily:
- [ ] Any interfaces changed?
- [ ] Any backward compatibility impacted?
- [ ] Document update required?
- [ ] Testing done
Please provide details on
- Whether new unit test cases have been added or why no new tests
are required?
- How it is tested? Please attach test report.
- Is it a performance related change? Please attach the performance
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change.
- [ ] 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/xuchuanyin/carbondata 0727_bloom_default_para
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2567.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 #2567
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commit 50780e8159ae46e6a7c9596ee9d1ad8dd09048a5
Author: xuchuanyin <xuchuanyin@...>
Date: 2018-07-27T03:54:21Z
Optimize default parameter for bloomfilter datamap
To provide better query performance for bloomfilter datamap by default,
we optimize bloom_size from 32000 to 640000 and optimize bloom_fpp from
0.01 to 0.00001.
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