How To Fix RZ455 - Rollfile/pagingfile overflow

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 455

• Message text: Rollfile/pagingfile overflow

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 RZ455 - Rollfile/pagingfile overflow ?

  The SAP error message RZ455 indicates that the roll file or paging file has overflowed. This typically occurs when the system runs out of space to store the data that is being processed, which can happen due to various reasons such as insufficient memory allocation, high workload, or improper configuration.
  Causes of RZ455 Error
  
  
  Insufficient Memory: The most common cause is that the system does not have enough memory allocated to handle the current workload. This can happen if the application is processing a large amount of data or if there are too many concurrent users.
  
  
  Configuration Issues: Incorrect configuration of the roll area or paging area can lead to overflow. This includes settings in the instance profile that define the size of the roll and paging files.
  
  
  High Workload: A sudden spike in workload, such as batch jobs or reports that require significant memory, can lead to overflow.
  
  
  Long-Running Transactions: Transactions that take a long time to complete may consume more memory than expected, leading to overflow.
  
  
  Memory Leaks: In some cases, poorly written code or inefficient queries can lead to memory leaks, causing the roll or paging files to fill up.
  
  
  Solutions to RZ455 Error
  
  
  Increase Memory Allocation:
  
  Adjust the instance profile parameters to increase the size of the roll and paging files. The parameters to look for are roll_area and paging_area.
  Example parameters:
  
  abap/roll_area (for roll area size)
  abap/paging_area (for paging area size)
  
  
  
  
  
  Monitor and Optimize Workload:
  
  Use transaction ST03N to analyze workload and identify any long-running transactions or high resource-consuming processes.
  Optimize the code or queries that are consuming excessive resources.
  
  
  
  Check for Memory Leaks:
  
  Review custom code and third-party add-ons for potential memory leaks. Use transaction ST22 to check for dumps that may indicate issues.
  
  
  
  Adjust System Configuration:
  
  Ensure that the system is configured correctly for the expected workload. This includes checking the number of work processes and their configuration.
  
  
  
  Restart the Instance:
  
  In some cases, a simple restart of the SAP instance can clear the roll and paging files and resolve the overflow issue temporarily.
  
  
  
  Increase Hardware Resources:
  
  If the system consistently runs out of memory, consider upgrading the hardware resources (RAM) of the server hosting the SAP system.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  RZ10: To change instance profile parameters.
  ST02: To monitor buffer and memory usage.
  ST03N: To analyze workload and performance.
  ST22: To check for dumps and errors.
  
  
  
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to memory management and performance tuning.
  
  
  Documentation: Refer to SAP's official documentation for best practices on memory management and performance tuning in SAP systems.
  
  
  By addressing the underlying causes and implementing the suggested solutions, you can resolve the RZ455 error and improve the overall performance of your SAP system.