How to fix a server redirection error on my CRON task ?

A CRON task can follow several HTTP redirects while processing the catalogue in batches. An ERR_TOO_MANY_REDIRECTS error can come from the executing client's limit, a real loop or an unexpected redirect. By itself, it does not establish that the server is overloaded.

1. Use the exact CRON URL for the feed, keeping it separate from its XML URL. Check the domain, HTTP/HTTPS and feed protection.
2. Ask your webmaster to inspect the redirect chain and logs. Distinguish finite progress through batches from a loop that returns to the same state.
3. Check that the scheduler follows redirects and that its time and redirect limits suit the number of batches.
4. Adjust Number of products per cycle in Basic settings carefully. Larger batches reduce the number of cycles but use more resources; smaller batches can avoid memory or PHP time limits.

A blank page does not confirm success. Check task completion and the complete XML. Have your webmaster adjust the hosting limits actually in effect; routinely editing config.inc.php or prescribing 1 GB of memory is not a universal solution.

See other generation errors and feed scheduling.