I suffering trouble on gitLab some repository mirroring.

I’m hosting GitLab site as docker container and mirroring it’s repositories another gitLab site.

After committing big size images, this problem was started

Error message is
”
13:push to mirror: git push: exit status 1, stderr: “error: RPC failed; curl 55 Send failure: Broken pipensend-pack: unexpected disconnect while reading sideband packetnfatal: the remote end hung up unexpectedlynEverything up-to-daten”.
“

So I’ve tried size up http postBuffer on my gitLab container but I was failed because I couldn’t find .git/config files.

how can I fix this problem?

Please, check my issue.