Dear Micro Focus
As an industry standard every tools want to consume REST-APIs. We are planning to extensively make use of the uCMDB REST-API but recently detect the API limitation of 15 requests / second.
With the current implementation of the uCMDB REST-API we are unable to scale for multiple data consumers.
Especially with chunked data retrieval you have very soon more than 15 requests/second. As a global limitation you can never know when this limitation gets hit.
We suggest the following enhancement:
The number of API requests should not be limited globally but per Session. Let’s say 15 requests/s and per session.
With this approach the client can handle the number of parallel requests/second itself and control waiting times accordingly.
Otherwise you never know when the limitation was crossed and this leads to HTTP 5XX errors.
uCMDB REST API Limitation was found here:
I tested the DoSFilter parameters with REST API running on UCMDB Server. I needed to modify <UCMDBServer>/deploy/rest-api/WEB-INF/web.xml and <UCMDBServer>/deploy/rest-api/WEB-INF/quickstart-web.xml
The following parameters were working when testing the URL https://<UCMDBSERVER>/rest-api/ping/ with 25 users, 50 iterations and 100msec delay between iterations.