GitHub user ravipesala opened a pull request:
https://github.com/apache/carbondata/pull/2789
[HOTFIX] Fixed S3 metrics issue.
Problem: When data read from s3 it shows the data read as more than the
size of carbon data total size.
Reason: It happens because carbondata uses `dataInputStream.skip` but in s3
interface it cannot handle properly it reads in a loop and reads more data than
required.
Solution: Use `FSDataInputStream.seek` instead of skip to fix this issue.
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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- [ ] For large changes, please consider breaking it into sub-tasks under
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You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ravipesala/incubator-carbondata s3-metrics
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2789.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 #2789
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commit 59eded7ecdc1d0e0536dbd0e1f77373c9866bf83
Author: ravipesala <ravi.pesala@...>
Date: 2018-09-28T12:59:08Z
Fixed S3 metrics cache.
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