Failed to sync push mirror repo when repo is mirror repo

[hiifong]

Description

Mirror repo from github to self-hosted gitea, and then add a push mirror for this repo. When the sync button is clicked, Error is displayed, and the mouse is placed on Error to display git cat-file --batch-check --batch-all-object [/data/gitea/data/gitea-repositories/mirrors/linux.git]: context deadline exceeded -

git cat-file --batch-check --batch-all-object [/data/gitea/data/gitea-repositories/mirrors/linux.git]: context deadline exceeded - 

View Notice Details
Jul 22, 2023, 10:38 PM GMT+8
Failed to update mirror repository '/data/gitea/data/gitea-repositories/mirrors/linux.git': fatal: Unable to create '/data/gitea/data/gitea-repositories/mirrors/linux.git/./objects/info/commit-graphs/commit-graph-chain.lock': File exists.

Another git process seems to be running in this repository, e.g.
an editor opened by 'git commit'. Please make sure all processes
are terminated then try again. If it still fails, a git process
may have crashed in this repository earlier:
remove the file manually to continue.

Gitea Version

v1.20+

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

./gitea web

Database

MySQL

[hiifong]

Maybe the repo is too big

[cassiozareck]

Im not a maintainer neither a experienced Gitea contributor. But I'm trying to figure out what it may be. I found 2 reasons

1. By some reason gitea is spawning two git instances at same time in the same repository, creating this lock file that is giving the error
2. The time was exceeded. Do it last more than 5 minutes? If so probably it exceeded the timeout. If you're self-hosting gitea by yourself maybe you can try to extend this timeout in own app.ini configuration file under Git properties

Its not clear for me what exactly what happen when timeout is exceeded but I'll search more

[lunny]

Duplicate of #22578