Datacom MUF gets U0004 but then restarts fine

Products

• Datacom
• DATACOM - AD
• CIS
• COMMON SERVICES FOR Z/OS
• 90S SERVICES
• DATABASE MANAGEMENT SOLUTIONS FOR DB2 FOR Z/OS
• COMMON PRODUCT SERVICES COMPONENT
• Common Services
• CA ECOMETER SERVER COMPONENT FOC
• Easytrieve Report Generator for Common Services
• INFOCAI MAINTENANCE
• IPC
• UNICENTER JCLCHECK COMMON COMPONENT
• Mainframe VM Product Manager
• CHORUS SOFTWARE MANAGER
• CA ON DEMAND PORTAL
• CA Service Desk Manager - Unified Self Service
• PAM CLIENT FOR LINUX ON MAINFRAME
• MAINFRAME CONNECTOR FOR LINUX ON MAINFRAME
• GRAPHICAL MANAGEMENT INTERFACE
• WEB ADMINISTRATOR FOR TOP SECRET
• Xpertware

Issue/Introduction

CA Datacom MUF, which has CA CCI connection enabled, fails to start after having applied CA Common Services but it starts fine when resubmitted after few minutes. 

Environment

CA Datacom MUF with CCI connection

Cause

Failing MUF joblog shows the following error messages:
DB00260E - CCI ERROR - INIT 0004 0000 00 00000 
DB00223E - MULTI-USER UNABLE TO ACTIVATE CCI, FDBK = 14,0000
DB00239I - MUF TERMINATION, START PROGRAM ABEND
This means that MUF region could not connect to CA CCI and got the above errors.

Resolution

Since it was successfully restarted later, the most likely reason for the failure of the first execution of MUF is that CA ENF was not fully activated.
In fact, when CA ENF has been correctly initialized, the MUF has successfully connected to CA CCI.
In order to avoid these error messages, MUF must be started aftee CA ENF is successfully activated.