How to configure the mod_cluster proxy request timeout

Issue

• Requests are failing because they are hitting a mod_cluster proxy timeout:

  [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive
  

• How can we increase this timeout?

• We have issue happening in the production environment for requests which take a longer processing time on the EAP server. The application makes calls to the other back-end systems and when these requests take a little longer to complete the EWS returns a Gateway timeout error.
• The client request gets a Gateway Timeout error (HTTP 504) from JBoss EWS when accessed via the load balancer if the request takes a longer than usual, How to increase the timeout in EWS?