Message type: E = Error
Message class:  CNV_DMC_HC -  
Message number: 021
Message text: &1 latency occured due to unexpected reasons; see long text
Before you active the configuration for this table, the configuration
had been deactivated for a long time the logging table for the table war
not empty. As a result, it takes a longer time than the latency
threshold to replicate the table and a latency error occurs. In this
case, you can ignore the latency.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_DMC_HC021 indicates that there is a latency issue that occurred during a data migration or conversion process, specifically related to the Data Migration Cockpit (DMC). This error can arise due to various unexpected reasons, which may include performance bottlenecks, network issues, or problems with the source or target systems. Causes: Performance Bottlenecks: High load on the source or target system can lead to delays in data processing. Network Issues: Latency in network communication between the source and target systems can cause delays. Data Volume: Large volumes of data being processed at once can overwhelm the system.
Configuration Issues: Incorrect configuration settings in the DMC or related systems can lead to inefficiencies. Resource Limitations: Insufficient system resources (CPU, memory, etc.) can hinder performance. Database Locks: Locks on database tables can prevent timely access to data. Solutions: Monitor System Performance: Use monitoring tools to check the performance of both the source and target systems. Look for CPU,
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