GitHub user shardul-cr7 opened a pull request:
https://github.com/apache/carbondata/pull/2714
[CARBONDATA-2875]Two different threads overwriting the same carbondatafile.
Problem :- During concurrent load through two different threads in a
external table for non transactional tables , two different threads were
overwriting the same carbondata file.
Solution : This was happening because both the threads were assigning the
same filename for the carbondata files so one was overwriting the other.This
problem chances is reduced by changing the timestamp attached to the filename
from millisecond to nanosecond.
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
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 concurrent
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2714.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 #2714
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commit a7fec5bbc8355aaa73f87af7152b3947b8fa9acd
Author: shardul-cr7 <shardulsingh22@...>
Date: 2018-09-12T12:41:37Z
concurent load
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