Summary

Learn what to do when your space migration with Confluence Cloud Migration Assistant (CCMA) is failing due to insufficient file read permissions.

Overview

The migration of spaces is failing in the CCMA with the error "Insufficient file read permissions for /var/atlassian/application-data/confluence/attachments".

This can happen if the Confluence On-Premise instance is a clone of another environment, or if there are changes in the attachment folder structure.

Solution

1. List the permissions of the Confluence folder structure in the server where the product is hosted:

   $ ls -l /var/atlassian/application-data/confluence

2. Ensure the folder structure has sufficient read permissions (the default set of permissions for this folder is drwxr-x---).