org.jboss.netty.handler.codec.frame.TooLongFrameException

We are getting an error related to the size of the headers which is coming through with
org.jboss.netty.handler.codec.frame.TooLongFrameException
the header length is 8192 bytes and possibly more.
is there a setting in properties for this that we need to adjust?

Or a solution in script that we could use if there any ideas?
Regards,
Sean