ExportToStream - MULTI USER ENVIRONMENT - ABOUT 20 concurrent users

Hi:

1. Does  Report.ExportToStream(ExportFormatType.PortableDocFormat)
   cause problems in a MULTI USER / CONCURRENT USERS environment?

  2 Namespaces being used are :

     using  CrystalDecisions.CrystalReports.Engine;

     using CrystalDecisions.Shared;

     Example:

     -There is a report called “Performance.RPT” in a “Reports” folder under the website named “PKSSSystem”.

         - In production, 20 concurrent users are accessing the same report ““Performance.RPT” , and the report is exported to Stream

           with Report.ExportToStream(ExportFormatType.PortableDocFormat), resultant byte[] array is stored in the database

           and pulled back as an pdf file on a button click “SavePDF”, “GeneratePDf” etc…

     are there any concurrency issues expected as given in the support forums below.

      http://search.sap.com/notes?id=0001892901&boj=/sap/bc/bsp/spn/scn_bosap/notes.do?access=69765F6D6F64653D3939382669765F7361706E6F7465735F6E756D6265723D30303031383932393031. 

3. Also what are 1CPL and 3 CPL. Do we need to have
a concern with CPL stuff while using ExportToStream in the code??

4) Environment: Ms Visual studio 2008, CR reports Engine Version 12.x.CR Engines are available on webserver and directly accessed from the aspx - c# page.

Your quick response is greatly helpful - Thanks