Git 使用疑问

1)  fatal: remote origin already exists. 解决办法

..$ git remote add origin git@git.*.com:tang/comment_server.git
..$ git push -u origin master
git@git.*.com's password:
Permission denied, please try again.
git@git.*.com's password:
Permission denied, please try again.
git@git.*.com's password:
Permission denied (publickey,password).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
..$

解决办法

..$ git remote rm origin
..$ git remote add origin http://git.*.com/tang/comment_server.git
..$ git push -u origin master
Counting objects: 3, done.
Delta compression using up to 24 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 289 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To http://git.*.com/tang/comment_server.git
* [new branch] master -> master
Branch master set up to track remote branch master from origin.
..$

2)  fatal: The remote end hung up unexpectedly. 解决办法

..$ git push origin develop

Username for 'http://git.*.com': tang
Password for 'http://tang@git.*.com':
Counting objects: 43, done.
Delta compression using up to 24 threads.
Compressing objects: 100% (22/22), done.
error: RPC failed; result=22, HTTP code = 411
fatal: The remote end hung up unexpectedly
Writing objects: 100% (24/24), 1.98 MiB | 0 bytes/s, done.
Total 24 (delta 6), reused 0 (delta 0)
fatal: The remote end hung up unexpectedly
Everything up-to-date

解决办法

..$ git config http.postBuffer 524288000

相关链接：http://stackoverflow.com/questions/16557071/git-error-rpc-failed-result-22-http-code-411