Configuring Crystal Reports for a Web Farm or Web Garden
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Report Application Server .NET SDK Developer Guide |
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Configuring Crystal Reports for a Web Farm or Web Garden |
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This section presents a summary of Crystal Reports configuration issues for a Web farm or Web garden. |
Now that you have examined the issues of Architecture, the The ASP.NET Worker Process, Out-of-Process Session State and Serializable Object Models in Report Application Server, you are ready to configure Report Application Server in a Web farm or Web garden scenario.
In addition to the Web farm or Web garden servers, you need two additional servers:
The ReportClientDocument instance is serialized to the ASP.NET out-of-process Session State server.
Because the ReportClientDocument instance stays alive on the Session State server, the Crystal report .rpt file associated with the ReportDocument instance is kept open on the RAS server.
When a different ASP.NET worker process on the Web farm or Web garden retrieves the ReportClientDocument instance from the out-of-process Session State server, the associated .rpt file is accessed by the ReportClientDocument instance from the RAS server.
One additional detail needs to be configured when using a Web farm.
Images that are written during the reporting process (such as dynamic charts) must be placed on a common network share for access by any ASP.NET worker process. Each machine must be configured to write images to the same network share and to grant permission to the ASP.NET worker account on each machine to write to that share.
For detailed configuration instructions on the configuration issues involved in running Report Application Server on a Web farm or Web garden, consult the Technical Support web site.
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