John, Thanks for replying . So In my case I am already having a bare
repository of size ~ 25 G. That's why I was worrying about keeping
additional free space of 25G for all time is not feasible .
So I am maintaining a centralized data storage , where every
application will store some data . So there might be a case , when I could
have some 8 to 9 instances of such repositories . So in that case how much
free space I should keep on disk? I don't have much experience with git,
but I have a knowledge about how it internally stores every blobs and
trees. So from that , I could say the extra space equal to "tree" object
size (atmax 4-5 times ) should be enough. Because for all the major
operations git traverses through the revWalk. The fact which is confusing
me is that for total of 40G repositories , 4G free space is still doing as
expected.
Could someone please put more light on how much space it should take?
On Thu, Jun 12, 2014 at 12:21 AM, John Fisher <fishook2...@gmail.com> wrote:
>
>
> On Wednesday, June 11, 2014 12:10:43 AM UTC-7, chetna chaudhari wrote:
>>
>> Hi,
>> I read a line about git in https://help.github.com/
>> articles/working-with-large-files article
>>
>>
>> * "In addition, if a repository is 10 GB in size, Git's
>> architecture requires another 10 GB of extra free space available at all
>> times." *
>> can someone please explain , why git needs equal size extra space. And do
>> it affect performance if it does not get that much free space ?
>>
>>
>> --
>> CHETNA
>>
>
>
> Chetna, when you clone a Git repository you get a tree of all the files,
> plus a .git directory at the root of the tree that contains the Git data
> and all the file contents. So if you cloned it from a shared spot where it
> was inited ( as a bare) , you'll have roughly twice as much diskspace used
> as the original. Git may also require temp file space to do operations -
> actual experts will know better than I. Anyway disk space is cheap, you
> should always have free space available for any app on your system.
>
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