You can use the Administrator tool to manage user connections and locks and perform the following tasks:
View locks. View object locks and lock type. The PowerCenter repository locks repository objects and folders by user. The repository uses locks to prevent users from duplicating or overwriting work. The repository creates different types of locks depending on the task.
View user connections. View all user connections to the repository.
Close connections and release locks. Terminate residual connections and locks. When you close a connection, you release all locks associated with that connection.