Overview

You are experiencing issues with file downloads on your server, where users encounter an error when attempting to download files from your site or Batch Image Order jobs fail. The problem is often characterized by errors in the at_log, specifically 'DBlaunchXMPSync(): couldn't open temp path' and 'processBasket() : couldn't reserve space for archive'. The /tmp folder has sufficient space and read/write permissions.

Solution

Assuming your /tmp folder already has sufficient space and read/write permissions, this trouble has been traced to a fault during temporary file creation related to the Apache service. This trouble has been consistently addressed by restarting the Apache service. 

FAQ

1. What if restarting the Apache service doesn't solve the problem?
If restarting the Apache service doesn't solve the problem on the first attempt, a second restart will likely correct the trouble.
2. How can I check if my /tmp folder has sufficient space and read/write permissions?
You can check the space using the 'df -h' command and the permissions using your server terminal's 'ls -ld /tmp' command.
3. What does the error 'DBlaunchXMPSync(): couldn't open temp path' mean?
This error usually indicates a problem with the /tmp folder, possibly related to insufficient space or incorrect permissions, but can be associated with a failure in temporary file creation.