ResolutionUse a .tdc file to increase the buffer size of the Salesforce connection. This will affect ALL Salesforce connections made on Tableau Server:
1. Open a new document in a text editor.
2. Enter information similar to the following:
<?xml version='1.0' encoding='utf-8' ?>
<connection-customization class='salesforce' enabled='true' version='10.2'>
<vendor name='salesforce' />
<driver name='salesforce' />
<!-- The valid value is between 32 to 1024 -->
<customization name='sf-total-requestor-buffer-size-in-mb' value='1024' />
Version = The highest version of Tableau the .tdc file will be applied to. For example, if version is set to '10.1' in the .tdc file, a Salesforce connection established on Tableau Server version 10.2 will not have the customizations applied. However, a connection established in Tableau Server version 10.0 will, since the version is less than the version specified in the .tdc file.
3. Save the file with a .tdc extension -- for example, salesforce.tdc -- and place it in one of the following locations:
Place the .tdc file in the bin folder:
C:\Program Files\Tableau\Tableau Server\[version]\bin
Or in the vizqlserver\Datasources folder: