How To Fix CNV634 - Average data throughput per second (read/sec or upd/sec): &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 634

• Message text: Average data throughput per second (read/sec or upd/sec): &1.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV634 - Average data throughput per second (read/sec or upd/sec): &1. ?

  The SAP error message CNV634, which indicates "Average data throughput per second (read/sec or upd/sec): &1," typically arises during data migration or data transfer processes in SAP systems, particularly when using the SAP Data Migration Cockpit or similar tools. This message is often related to performance issues during data processing.
  Cause:
  
  
  Performance Bottlenecks: The error may indicate that the data throughput (the rate at which data is being read or updated) is lower than expected. This can be caused by various factors, including:
  
  Insufficient system resources (CPU, memory, disk I/O).
  Network latency or bandwidth issues.
  Inefficient data processing logic or queries.
  Lock contention in the database.
  High volume of data being processed at once.
  
  
  
  Configuration Issues: Incorrect configuration settings in the data migration tool or the SAP system can also lead to suboptimal performance.
  
  
  Database Performance: The underlying database may be experiencing performance issues, such as fragmentation, lack of indexing, or other database-related problems.
  
  
  Solution:
  
  
  Monitor System Resources: Use monitoring tools to check CPU, memory, and disk I/O usage during the data migration process. Identify any bottlenecks and address them by optimizing resource allocation.
  
  
  Optimize Data Processing:
  
  Review and optimize the data migration logic or queries to ensure they are efficient.
  Consider breaking down large data loads into smaller batches to reduce the load on the system.
  
  
  
  Check Network Performance: Ensure that the network connection between the source and target systems is stable and has sufficient bandwidth.
  
  
  Database Optimization:
  
  Analyze the database performance and consider optimizing indexes or performing maintenance tasks like reorganization or defragmentation.
  Ensure that the database is properly tuned for the workload.
  
  
  
  Configuration Review: Review the configuration settings of the data migration tool and the SAP system to ensure they are set up for optimal performance.
  
  
  Increase Parallel Processing: If applicable, increase the number of parallel processes for data migration to improve throughput.
  
  
  Consult SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or fixes related to this error message.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific data migration tool you are using for best practices and performance tuning guidelines.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools (like ST03N, ST06, or DBACOCKPIT) to analyze system performance during the migration process.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to improve the data throughput and resolve the CNV634 error message.