For example, in the following configuration the Data Integration Service accepts 200 concurrent HTTP requests but only 10 web service concurrent requests:

When the Data Integration Service receives 20 web service requests, 10 web service requests fail because the web service can only accept 10 concurrent requests.

To avoid web service requests failing when the web service reaches its maximum number of concurrent requests, configure the same maximum value for the Data Integration Service process and the web service. When the number of requests sent to the Data Integration Service exceeds the maximum concurrent requests value, the additional requests remain in the backlog until the Data Integration Service process is available to process the requests.