Concurrent Users for Query BEx
Hi BW Experts,
my concerns are related to the simultaneous access to a query BEx.
On a total amount of 3000 users I have 300 concurrent users, launching the same query in the same time.
Two are my issues:
1 - how can I test the simultaneous launch of the query without involving 300 persons?
2 - I think the performance of such a test will be not acceptable: what are the levers/parameters BW system gives me to increase these kind of performance?
Thank you in advance for your help!
Kind regards.
Matteo
To have 300 users start the same query at the exact same time is certainly unusual. Don't have any good suggestions on the "Hoe to test" question. This is a difficult question to answer with a short answer. You have many performance options/considerations:
Are the users running the exact same query with all the same input parameters? Pre-calculated web templates might be of value, this would cache precalculated web pages, or consider scheduling the query and then distributing the results via e-mail using Information Broadcaster.
If the result set is not unusually large, you may be able to schedule a run of the query and store the results in the OLAP cache, that way the Database does not need to be accessed - the users will get their results from the OLAP Cache (Server memory) which is very fast.
This doesn't even begin to consider the hardware and landscape in place, e.g. are there multiple App servers?
Depending on the approach, your bottleneck could be the DB server, it could be the App Server(s), or specific components of the App server. A lot depends also on how much you mean that the users run it at the same time - all 300 at exactly the same time, within a 15 minute time period, an hour?
A web query is probably a better approach than the BEx Analyzer (Excel)in this situation as it gnerates considerably less network traffic.
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