Repo size increased from 2 to 9 Gig

[stalebbeik]

I am using the following versions:
Centos 6.5
git 2.0.5
git-lfs-migrate 0.2.5

I am trying to prepare a repository that is in Gerrit which has eight large files over 100 MB. So in order to migrate and push it to Github with LFS support, I used git-lfs-migrate. I noticed that the size of the converted repository has increased from 2 to 9 Gig. There is a new "lfs" subdirectory with 2 GB and "objects" subdirectory has increased from 2 to 7.4 Gig. Does anyone have an idea what might be the issue? Here are my commands:

$ git clone --mirror ssh://username@gerrit/repo.git
$ java -jar /home/user/git-lfs-migrate.jar -s repo.git -d repo-converted.git ".csv" ".xls" "*.rtf"
$ cd repo-converted.git
$ git fsck

Also, I noticed that all the commits in the converted repository have a new hash. I am guessing that this is an expected behavior.

[cosimo-dw]

I also faced similar problems. And here are what I found online:

1. the "objects" subdirectory after the migration is in loose object format (i.e. uncompressed). git will compress them on push before uploading files, or you can use "git gc" to manually pack them, after which you will see a huge decrease of repo size.
2. hashes of commits are all based on files. And since large files are all changed from blob to pointers new hash is expected.

[stalebbeik]

Thanks for the response. Is this the specific git command that you suggest to run?
git gc --prune=now --aggressive

[cosimo-dw]

I didn't try with --aggressive nor --prune=now, which are probably up to your choice.