Git is a widely used version control system that allows developers to collaborate on projects. When working with Git, you may encounter errors while pushing changes to a remote repository. One such error occurs when the RPC (Remote Procedure Call) fails due to an issue with the HTTP/2 protocol. In this tutorial, we will explore the causes of this error and provide solutions to troubleshoot and resolve it.
Understanding the Error
The error message "RPC failed; curl 92 HTTP/2 stream 0 was not closed cleanly: PROTOCOL_ERROR (err 1)" typically occurs when there is an issue with the HTTP/2 protocol used by Git to communicate with the remote repository. This can be caused by a variety of factors, including:
- Incompatibility between the Git client and server
- Large push data exceeding the post buffer size
- Issues with the network connection
Solution 1: Forcing Git to use HTTP/1.1
One solution is to force Git to use the older HTTP/1.1 protocol instead of HTTP/2. This can be done by setting the http.version configuration variable to HTTP/1.1. You can do this globally using the following command:
git config --global http.version HTTP/1.1
This will tell Git to use HTTP/1.1 for all repositories. If you want to set this configuration only for a specific repository, you can omit the --global flag.
Solution 2: Increasing the Post Buffer Size
Another solution is to increase the post buffer size, which can help if you are pushing large amounts of data. You can do this by setting the http.postBuffer configuration variable to a larger value. For example:
git config --global http.postBuffer 157286400
This sets the post buffer size to 150MB. You can adjust this value based on your specific needs.
Solution 3: Temporarily Switching to HTTP/1.1
If you only need to push changes occasionally, you can temporarily switch to HTTP/1.1 and then switch back to HTTP/2 after the push is complete. Here’s an example:
git config http.version HTTP/1.1
git push
git config --unset http.version
This will set the http.version configuration variable to HTTP/1.1, perform the push, and then reset the configuration variable to its default value.
Best Practices
To avoid encountering this error in the future, make sure to:
- Keep your Git client and server up to date
- Use a stable network connection
- Avoid pushing large amounts of data at once
- Consider increasing the post buffer size if you frequently push large changes
By following these solutions and best practices, you should be able to troubleshoot and resolve Git push errors related to the HTTP/2 protocol.