How To Fix CNV_10020569 - Calculation is based on &1 kByte of available memory per task

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 569

• Message text: Calculation is based on &1 kByte of available memory per task

What causes this issue?

The system has calculated a value of &V1& kByte per task (background
process) to be used as the basis for calculating the memory
requirements for determination paths <zh>in the current machine</>.

System Response

For memory requirements of &V2&& or higher (&V3& kByte), a warning
message is output.
&HINTS&

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The org. package tries to calculate the memory requirements per task
using the profile parameters.
This value is only a first indicator. Depending on the operating system
and release, the calculation can differ from the implemented
calculation. In particular, only 2 GByte by default and a maximum of 4
GByte can be allocated for 32Bit operating systems.
If you want to skip the automatic calculation by the org. package, for
example because the automatic calculation returns an inccorect value or
because you want the processes to run on a different machine, you can
enter the value directly in the parameter MEMORY_PER_TASK_MAX in
transaction CNV_10020_PARAM. (Do not use a thousand separator.) If you
do so, no automatic calculation takes place.
The parameter MEMORY_PER_TASK_BORDER_TO_YELLOW in transaction
CNV_10020_PARAM defines the percentage of required memory per task from
which a warning is output.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020569 - Calculation is based on &1 kByte of available memory per task ?

  The SAP error message CNV_10020569 indicates that the calculation being performed is constrained by the amount of available memory allocated per task. This typically occurs during data migration or conversion processes, where large datasets are being processed, and the system runs out of memory to handle the operations.
  Cause:
  
  Insufficient Memory Allocation: The system may not have enough memory allocated for the task, leading to the error when trying to process large amounts of data.
  Large Data Volume: The operation may involve processing a large volume of data that exceeds the available memory.
  Configuration Issues: The SAP system may not be optimally configured to handle the required memory for the tasks being executed.
  
  Solution:
  
  
  Increase Memory Allocation:
  
  You can increase the memory allocation for the SAP instance. This can be done by adjusting the profile parameters in the instance profile (e.g., abap/heap_area_dia, abap/heap_area_nondia, etc.).
  Consult with your Basis team to determine the appropriate values based on your system's capacity.
  
  
  
  Optimize Data Processing:
  
  If possible, break down the data processing into smaller batches. This can help reduce the memory load during the operation.
  Review the data being processed and eliminate any unnecessary records or fields that do not need to be migrated.
  
  
  
  Check System Resources:
  
  Monitor the system's memory usage and ensure that there are no other processes consuming excessive memory.
  Ensure that the server has adequate physical memory and that the operating system is configured to allow SAP to utilize it effectively.
  
  
  
  Use Transaction Codes:
  
  Use transaction codes like ST02 (Tune Summary) to analyze memory usage and identify any bottlenecks.
  Use SM50 to monitor the work processes and their memory consumption.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error or provide additional guidance on memory management during data migration.
  
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory can help in configuring the system appropriately. SAP uses different memory areas for dialog processes, background processes, and other tasks.
  Data Migration Tools: If you are using specific tools for data migration (like SAP S/4HANA Migration Cockpit or SAP Data Services), refer to their documentation for best practices regarding memory usage.
  Performance Tuning: Regular performance tuning and monitoring can help prevent such issues from arising in the future.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.