On Tuesday May 9th 2023, a configuration change was made in our Database (DB) environment to increase DB performance.
On Friday May 12th 2023, the above change surfaced an issue in our Bulk Upload system where queries would run for too long, resulting in DB locking. As a mitigation step, these locks were cleared allowing Bulk Upload jobs to continue processing successfully.
The root cause was later identified to be a missing DB index, and on Monday May 22nd 2023, the missing DB index was added to resolve the DB locking issue.