Managing User Connections and Locks
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.
Viewing Locks
You can view locks and identify residual locks in the Administrator tool.
1. In the Administrator tool, click the Manage tab > Services and Nodes view.
2. In the Domain Navigator, select the PowerCenter Repository Service with the locks that you want to view.
3. In the contents panel, click the Connections & Locks view.
4. In the details panel, click the Locks view.
The following table describes the object lock information:
Column Name | Description |
|---|
Server Thread ID | Identification number assigned to the repository connection. |
Folder | Folder in which the locked object is saved. |
Object Type | Type of object, such as folder, version, mapping, or source. |
Object Name | Name of the locked object. |
Lock Type | Type of lock: in-use, write-intent, or execute. |
Lock Name | Name assigned to the lock. |
Viewing User Connections
You can view user connection details in the Administrator tool. You might want to view user connections to verify all users are disconnected before you disable the PowerCenter Repository Service.
To view user connection details:
1. In the Administrator tool, click the Manage tab > Services and Nodes view.
2. In the Domain Navigator, select the PowerCenter Repository Service with the locks that you want to view.
3. In the contents panel, click the Connections & Locks view.
4. In the details panel, click the Properties view.
The following table describes the user connection information:
Property | Description |
|---|
Connection ID | Identification number assigned to the repository connection. |
Status | Connection status. |
Username | User name associated with the connection. |
Security Domain | Security domain of the user. |
Application | Repository client associated with the connection. |
Service | Service that connects to the PowerCenter Repository Service. |
Host Name | Name of the machine running the application. |
Host Address | IP address for the host machine. |
Host Port | Port number of the machine hosting the repository client used to communicate with the repository. |
Process ID | Identifier assigned to the PowerCenter Repository Service process. |
Login Time | Time when the user connected to the repository. |
Last Active Time | Time of the last metadata transaction between the repository client and the repository. |
Closing User Connections and Releasing Locks
Sometimes, the PowerCenter Repository Service does not immediately disconnect a user from the repository. The repository has a residual connection when the repository client or machine is shut down but the connection remains in the repository. This can happen in the following situations:
- •Network problems occur.
- •A PowerCenter Client, PowerCenter Integration Service, PowerCenter Repository Service, or database machine shuts down improperly.
A residual repository connection also retains all repository locks associated with the connection. If an object or folder is locked when one of these events occurs, the repository does not release the lock. This lock is called a residual lock.
If a system or network problem causes a repository client to lose connectivity to the repository, the PowerCenter Repository Service detects and closes the residual connection. When the PowerCenter Repository Service closes the connection, it also releases all repository locks associated with the connection.
A PowerCenter Integration Service may have multiple connections open to the repository. If you close one PowerCenter Integration Service connection to the repository, you close all connections for that service.
Important: Closing an active connection can cause repository inconsistencies. Close residual connections only.
To close a connection and release locks:
1. In the Administrator tool, click the Manage tab > Services and Nodes view.
2. In the Domain Navigator, select the PowerCenter Repository Service with the connection you want to close.
3. In the contents panel, click the Connections & Locks view.
4. In the contents panel, select a connection.
The details panel displays connection properties in the properties view and locks in the locks view.
5. In the Manage tab Actions menu, select Delete User Connection.
The Delete Selected Connection dialog box appears.
6. Enter a user name, password, and security domain.
You can enter the login information associated with a particular connection, or you can enter the login information for the user who manages the PowerCenter Repository Service.
The Security Domain field appears when the Informatica domain contains an LAP security domain.
7. Click OK.
The PowerCenter Repository Service closes connections and releases all locks associated with the connections.