Report server engine (9.0.2.0.3)

Question

Hi all,
I would like to know whether the Report server Engine is multitasking or not. I installed Oracle application server 9.0.2.03 on a NT2000 environment, and I have two server engine running. If I have 4 or more user requests and if the first report takes long time to retrieve the data from the database, does the server engine attends to another request or does the engine waits for the first report to get over before attending the second request.
Frequently I am getting the following message, while running report with 2 sessions. (even though my report should not take more than 1 min)
Running the report Formatting page 1. Please wait.(report format is PDF)
And to come out of this situation, I need to restart the report server.
If i try to cancel the job, I get a message
'Cannot kill job with Job ID REP-59068:Bad Engine name:null'
Thanks and regards.
[email protected]

Answer 1

hello,
an engine can only process one job at any given time. out of the box the reports server is configured to run one reports engine and one URL engine.
if you want to increase the number of report engines, modify the minEngines and maxEngines parameter in the server configuration file.
a rule-of-thumb is you can have 4x the number of CPUs in your machine. of course you can have less or more than that. but you might run into disadvantages where more engines will actually use up too much resources and result in less performance.
regards,
philipp