We are using an external tool to regularly delete Artifacts. It is using the REST API and sends DELETE Requests to the respective artifact URLs. This worked pretty well until we updated to 7.18.3. After this update the performance of DELETE Requests seems to be degraded by a large factor. Now the aforementioned tools runtime exceeds one day (before it was at around 3-4h).
As the tool was single threaded it was pretty easy to determine (using access logs) that a DELETE Requests now takes around 1s in comparison to (guessing) several ms before 7.18.x.
We also observed a much higher CPU load (nearly 100% !) on the artifactory host during the runtime of those DELETE Requests. The load seems to be mostly Database related (seeing postgres SELECT processes as high consumers). As soon as the DELETE Requests stop the load goes back to normal.