1、添加远程仓库到本地remote分支

git remote add upstream git@github.com:apache/flink.git # 远程仓库地址

2、查看当前仓库的远程分支

git remote -v
origin  git@github.com:springMoon/flink.git (fetch)
origin  git@github.com:springMoon/flink.git (push)
upstream        git@github.com:apache/flink.git (fetch)  # 远程分支
upstream        git@github.com:apache/flink.git (push)

 3、fetch 远程分支

git fetch upstream

4、合并 fetch 的分支到本地master

git merge upstream/master

5、查看log最近更新日志

$ git log
commit 9410674e642ab7d10f8b1358faafa93419282fef
Author: bowen.li <bowenli86@gmail.com>
Date:   Tue Aug 13 15:54:59 2019 -0700

    [hotfix][doc] remove two obsolete Hive doc files

commit f33a6f0fd6d46d666d95707ac320115ada21cb0f
Author: Rui Li <lirui@apache.org>
Date:   Mon Aug 5 12:26:40 2019 +0800

    [FLINK-13534][hive] Unable to query Hive table with decimal column

    Fix the issue that Flink cannot access Hive table with decimal columns.

    This closes #9390.

6、推送本地master 到远程仓库（自己fork的仓库）

git push origin master