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.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 #2710
commit 61520a3d0bacfbcbed5a2b5ac300f08cf9b36bb4
Author: shardul-cr7
Date: 2018-09-11T12:51:09Z
chances of two different threads overwriting the same carbondatafile is
reduced
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