Add the section about IMPORT_DEBUG and restructure the doc
What does this MR do and why?
The variable IMPORT_DEBUG
introduced in !21268 (merged) is only briefly mentioned in Override default log level. This MR adds more details about
Additionally, I moved the sub-section Gitaly calls error when importing
to the main troubleshooting section to make it more consistent.
How to set up and validate locally
Numbered steps to set up and validate the change are strongly suggested.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.