Symptom

Import of large archive from CMS fails. Message is something like "Socket write error" or "Software caused connection abort".

Solution

1. Check the "MaxRequestContentLength" property of the engine using the Visual Admin > Dispatcher > HTTP Provider > Properties.
   The default value is 128kB, which may be too small for certain components.
2. Increase the value to at least 100MB (note that the unit in the property pane is byte).
   For the changes to take effect, the J2EE Engine has to be restarted.