Re: Git as data archive
- From
Thomas Braun <thomas.braun@virtuell-zuhause.de>
- Date
- Dec 7, 2019, 18:04 UTC
- Message-ID
- <1c81112d-5a1b-a791-b43f-d6a67d5b2e04@virtuell-zuhause.de>
- In-Reply-To
- <60945f9c-d79c-7806-0c5e-3e2affcea001@iee.email>
On 07.12.2019 17:54, Philip Oakley wrote:
Show 18 quoted lines
> Hi Andreas, > > On 06/12/2019 18:54, Andreas Kalz wrote: >> Hello, >> I am using git as archive and versioning also for photos. Apart from >> performance issues, I wanted to ask if there are hard limits and >> configurable limits (how to configure?) for maximum single file size and >> maximum .git archive size (Windows 64 Bit system)? >> Thanks in advance for your answer. >> All the best, >> Andreas > > On Git the file size is currently limited to size of `long`, rather than > `size_t`. Hence on Git-for Windows the size limit is 32bit ~4GiB > > Any change will be a big change as it ripples through many places in the > code base and, for some, will feel 'wrong'. I did some work [1-4] on top > of those of many others that was almost there, but...
Adding to what Philip said. On Windows the size of exported archives (git archive) is currently also limited to 4GB. The reason being also the long vs size_t issue (which is not present on linux though).
So if you can switch to Linux or even MacOSX these issues are gone.
The number of files in .git, only the number packfiles would be of interest here I guess, do not have the long vs size_t issue. So packfiles can be larger than 4GB on 64bit Windows (with 64bit git of course).
But depending on how large the biggest files are, it might be worth tweaking some of the settings, so that the created packfiles are readable on all platforms. I once created a repo on linux which could not be checked on windows, and that is a bit annoying.
So the questions are how large is each file? And what repository size do you expect? Are we talking about 20MB files and 10GB repository? Or a factor 100 more? And are you just adding files or are you modifying the added files? Depending on the file sizes it might then also be beneficial to tweak the delta compression settings and/or the big file threshold limits.
Thomas
Show 10 quoted lines
> The alternative is git-lfs, which I don't personally use (see [4]). > > Philip > > [1] https://github.com/git-for-windows/git/pull/2179 > [2] https://github.com/gitgitgadget/git/pull/115 > [3] https://github.com/git-for-windows/git/issues/1063 > [4] https://github.com/git-lfs/git-lfs/issues/2434 > >