While preparing to migrate the content delivery to new data centers, a script, which synchronizes the data between data center locations, was modified. An error within the script was made preventing the script for operation properly.
Under normal operating circumstances, monitoring systems are able to alert when file patterns in any location are not up to date. It was determined that a recent migration to a newer monitoring platform had not implemented the tests for file age. As a result, we did not receive the expected alerts.
The scripting error was corrected, and the patterns have been up to date since this incident.