I'm creating an SSRS report using report builder that generated large amount of data based on from to dates parameters.
If I run the report up to 3 months the report works fine, however when generating the report for a longer period generating larger amount of data an system out of memory exception error is thrown.
Note that if I run the query for the same period but from inside the data set it will be generated in seconds.
Also when generating the report from http://servername/Reports/Pages/Folder.aspx it will keep loading without generating any data, I've tried to modify the rsreportserver.config file with the following with no success
<MemorySafetyMargin>80</MemorySafetyMargin>
<MemoryThreshold>90</MemoryThreshold>
<WorkingSetMaximum>4000000</WorkingSetMaximum>
<WorkingSetMinimum>2400000</WorkingSetMinimum>