Message type: E = Error
Message class:  CNV_DMC_HC -  
Message number: 091
Message text: Job &1 (ID: &2): Job has been running for over 24 hours
The master job or the load job has been running for over 24 hours. This
indicates a possible hanging RFC connection or database connection.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
For Master Job (/1LT/IUC_REP_MSTR):
1.,,Deactivate all configurations to stop the master job.
2.,,In transaction SM37, check the master job (/1LT/IUC_REP_MSTR)  and
make sure it stops.
3.,,Check the connection and ensure that the connection works properly.
4.,,Active the configurations, and check the master job in SM37 to make
sure it has been restarted.
For Load Job:
1.,,Deactivate the configuration.
2.,,In transaction SM37, manually stop the job.
3.,,Check the connection and ensure that the connection works properly.
4.,,In the transaction LTRC, reset the job status by using the Reset
Load and Replication Status function on the Expert Functions tab.
5.,,Active the configuration.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_DMC_HC091 indicates that a job related to the Data Migration Cockpit (DMC) has been running for more than 24 hours. This can occur during data migration processes, especially when dealing with large datasets or complex transformations.
Cause: Large Data Volume: The job may be processing a significant amount of data, which can lead to extended processing times. Performance Issues: There may be performance bottlenecks in the system, such as insufficient resources (CPU, memory, I/O), or database performance issues. Inefficient Data Transformation Logic: The logic used for data transformation may not be optimized, leading to longer processing times. Locking Issues: There may be database locks or contention issues that are causing delays in processing.
Configuration Issues: Incorrect configuration settings in the DMC or related components may lead to inefficiencies.
Solution: Monitor Job Performance: Use transaction codes like SM37 to monitor the job's status and check for any specific errors or warnings. Analyze Resource Usage: Check system
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