GitHub user shardul-cr7 opened a pull request:
https://github.com/apache/carbondata/pull/2710 [2875]two different threads overwriting the same carbondatafile
Problem : Two different threads are overwriting the same carbondata file during creation of external table.
Solution: Chances of two threads concurrently loading same carbondatafile is reduced by changing the timestamp attached in .carbondata file from millisecond to nanosecond.So chances of collision of different threads having the same file name is reduced.
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?
- [x] Testing done
Done Manually
- [ ] 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/shardul-cr7/carbondata master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2710.patchTo close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2710
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commit 61520a3d0bacfbcbed5a2b5ac300f08cf9b36bb4
Author: shardul-cr7 <shardulsingh22@...>
Date: 2018-09-11T12:51:09Z
chances of two different threads overwriting the same carbondatafile is reduced
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Locked
