Github user youngwookim commented on the pull request:
https://github.com/apache/bigtop/pull/24#issuecomment-129729375
OK. You should 'rebase' your working branch to ASF master before sending a
PR because your commit is far behind current master branch. Sometimes there are
merge conflicts while someone is trying to merge the patch. This is a simple
workflow for 'git rebase':
```
git checkout master
git pull asf master
git checkout YOUR-WORKING-BRANCH
git rebase -i asf/master
git push origin YOUR-WORKING-BRANCH
```
'asf' is a name for ASF git remote or github's bigtop mirror!
For more details, just googling 'git rebase'!
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