Running a DDUPDATE job runs for a while then hangs.
Check the MUF joblog for any error messages.
If the DDUPDATE job is doing lots of updates it could fill the log. In the MUF joblog the following message will be seen:
DB00308I - LOG AREA IS 100% FULL, 1197 TRACKS SPILLABLE
Release : 15.1
Component : CA Datacom/AD
Run a DBUTLTY job with the SPILL function to spill the LXX records to the RXX.
For Datacom/AD see INSTJCL member AD15LXXS.
See documentation on message DB00308I