The Repository Service manages connections to the repository from client applications.
The Repository Service is a separate, multi-threaded process that retrieves, inserts, and updates metadata in the repository database tables.
From the PowerCenter - Administration Console:
You install the Repository Service when you install Service. After you install the PowerCenter Services, you can use the PowerCenter - Administration Console to manage the Repository Service.
To switch a Repository Service from Normal to Exclusive mode and vice versa, you can use the infacmd command updateRepositoryService.
infacmd.sh DisableService -dn Domain_name -un user_name -pd password -sn repository_name -mo Abort
infacmd.sh updateRepositoryService -dn Domain_name -un user_name -pd password -sn repository_name -so OperatingMode=Exclusive
infacmd.sh updateRepositoryService -dn Domain_name -un user_name -pd password -sn repository_name -so OperatingMode=Normal
The Repository Service accepts connection requests from the following PowerCenter applications: