Failure recovery

Note:
These recovery steps do not apply if a disk failure occurs or if a disk is full.

To recover from failures during event notification, the connector:

  1. The connector processes IDocs from the JMS-MQ message in the event queue (specified in the SAPALE_Event_Queue configuration property). When it successfully processes a IDoc, the connector logs an entry in the EventState.log file.
  2. After the connector processes all IDocs in an event message, it clears the EventState.log file and begins writing entries to it for the next event message.
  3. If the connector goes down before it processes all IDocs in an event message, it uses the information in EventState.log to determine where to begin processing during the recovery process. When it comes back up, the connector checks whether there are any entries in the log file.

Recovery from business object creation errors

If the connector has created only the header portion of the message in the WIP queue but not the data portion, this procedure will recover the data portion of the message.

  1. Examine the SAP connector log for error messages pertaining to the business object's name, message type, or verb.
  2. Make the appropriate corrections to the business object definition or the connector configuration.
    Note:
    Configuration changes may include changes to MQSeries queues. For more information, see Prerequisites to running the ALE Module..
  3. Restart the connector.

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