Known Issue: Data Streaming cannot submit a POST body larger than 2 MB

Symptom

When sending a POST with a significant amount of content to the data streaming service, you receive a blank response and see that the parameter input is empty "{}" in the "Request Data" section of the job log on FME Flow.

Cause

The FME Flow Data Streaming service cannot support text parameters larger than 2 MB, and removes the content.

Workaround

Open the server.xml file (default location is C:\Program Files\FMEFlow\Utilities\tomcat\conf\server.xml) and add

maxPostSize="67589953"

to the Connector section. Restart FME Flow Application Service in Windows Services.