BOXI queues requests?

Question

We are using BOXI R2 in our production environment,
Our application stack involves a load balanced WAS cluster, which calls BO for the crystal reports. the reports is populated using our custom web service and served to the application layer.
We noticed a weird behavior while we were load testing our application. We ran a test for 300 users for 15 minutes. Once the test was over, we had around 2000 requests which failed (did not get any response back). FYI, the request waits for 3 minutes before timing out.
When we checked the web service logs, we could see that the web service was still getting requests even though the test had stopped.
So we brought down our WAS nodes. and the web service was still getting served with requests.
Is anyone aware of any queueing mechanisms in BOXI. We are in the process of understanding this behavior.
If there is a queueing mechanism, is there any place where more details can be found on this?

Answer 1

The Page Server spawns child processes to handle report requests.
So say you trigger several hundred report refreshes at one time, then kill your app server that sent the request.
The Page Server would happily spawn child requests up to the max specified in the Central Management Console, and the child processes will process the report till the first page of the report is formatted (if getting an HTML view) or the entire report is formatted (if getting binary format such as PDF or Word).
It won't know that the requester is dead.
Sincerely,
Ted Ueda