I need to use JIRA site import to migrate our instance to the cloud and I have a question about the checklist there.
Pre-migration checklist item #3 says
Ensure that the backup file is correctly structured for import. If you have a large instance, we recommend into a database file containing your activeobjects.xml and entities.xml, and a separate one for your attachments and other media.
This can help avoid timeout errors and reduce the risk of issues on import.
My question is: What is considered large? My entities.xml + activeobjects.xml file sizes are 1.8GB only when unzipped. Is that large?
For environments with more than 5GB, you might need to split the attachments into 2-5GB chunks and upload the attachments after the site import.
Another alternative would be asking Atlassian to enable the CFU feature which is a solution for customers with large attachments (>10GB), which is your case.
I didn't know about the existence of the CFU it's a good thing to know!