Lately, we have been getting a lot of errors on our content deployment jobs.  The error that the jobs seem to have in common is “An update conflict has occurred, and you must re-try this action”.

I followed this Microsoft KB Article to resolve the issue: Error message when you try to modify or to delete an alternate access mapping in Windows SharePoint Services 3.0: "An update conflict has occurred, and you must re-try this action" – 939308