PowerExchange Interfaces for PowerCenter

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Recovery State File

The recovery state file is similar to the state table. PWXPC uses the state file to store the CDC restart information for nonrelational target files. Nonrelational target files include MQ Series message queues, PowerExchange nonrelational targets, and other PowerCenter nonrelational targets. The PowerCenter Integration Service automatically creates the recovery state file in the shared location, $PMStorageDir, if it does not exist. The file name for the recovery state file is prefixed with:

pm_rec_state_application_name

The PowerCenter Integration Service uses the application name from the source CDC connection for the application name
value in the state file name prefix. The PowerCenter Integration Service includes the complete file name in message CMN_65003. The remainder of the fields in the file name are task and workflow repository attributes. These repository attributes remain static unless the task or workflow is altered. The following examples are actions that alter these repository attributes:

Adding or removing sources or targets from the mapping used by the session

Moving the workflow or session to a different folder

Moving the session to a different workflow

Understanding PWXPC Restart and Recovery

Changing CDC Sessions and Restarting from the Point of Interruption

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