How To Fix RT604 - &1 &3 > &2 &3 (15 Min.) No. of pages paged in exceeds threshold

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 604

• Message text: &1 &3 > &2 &3 (15 Min.) No. of pages paged in exceeds threshold

What causes this issue?

Paging In occurs when a process requires access to data that is not in
the main memory. The operating system then receives the command to page
in the appropriate page. The requesting process cannot proceed until
this is done.

System Response

In principle, paging always reduces performance. Paging in of pages is,
however, less critical for most operating systems - a page in also
occurs when a program is started, and this does not necessarily lead to
performance problems.
If the paging out of pages is greater than the paging in, the system
increases the size of the paging file - therefore the overload on the
main memory increases.

How to fix this error?

High levels of paging can have the following causes:
Too many processes are running on the server
The main memory is too small for the current demand
You an avoid a high level of paging by taking the following measures:
Better distribution of running processes on various servers
Better distribution of running processes to periods of low load
Install more main memory

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT604 - &1 &3 > &2 &3 (15 Min.) No. of pages paged in exceeds threshold ?

  The SAP error message RT604 indicates that the number of pages paged in exceeds a specified threshold. This typically relates to memory management within the SAP system, particularly in the context of the SAP kernel and the way it handles paging and memory allocation.
  Cause:
  The error occurs when the number of pages that have been paged into the system exceeds a predefined limit. This can happen due to several reasons:
  
  High Memory Usage: The application or processes running in the SAP system are consuming more memory than expected, leading to excessive paging.
  Configuration Issues: The system may not be optimally configured for the workload it is handling, leading to inefficient memory usage.
  Insufficient Hardware Resources: The underlying hardware may not have enough memory (RAM) to handle the current workload, causing the system to rely on paging.
  Long-running Processes: Certain long-running processes may be consuming memory resources over time, leading to this error.
  
  Solution:
  To resolve the RT604 error, consider the following steps:
  
  
  Monitor Memory Usage: Use transaction codes like ST02 (Tune Summary) and ST04 (Database Performance) to monitor memory usage and identify any processes that are consuming excessive memory.
  
  
  Adjust Configuration: Review and adjust the SAP memory parameters in the instance profile. Key parameters to look at include:
  
  abap/heap_area_dia
  abap/heap_area_nondia
  abap/heap_area_total
  rdisp/PG_SHM
  rdisp/PG_MAXFS
  
  
  
  Increase Hardware Resources: If the system is consistently hitting memory limits, consider upgrading the hardware (adding more RAM) to accommodate the workload.
  
  
  Optimize ABAP Programs: Review and optimize any custom ABAP programs that may be consuming excessive memory. This can include optimizing loops, reducing data volume, and ensuring efficient use of internal tables.
  
  
  Check for Memory Leaks: Investigate if there are any memory leaks in the custom code or third-party add-ons that could be causing excessive memory consumption.
  
  
  Review Background Jobs: Check for any background jobs that may be running for an extended period and consuming memory. Consider scheduling them during off-peak hours or optimizing their performance.
  
  
  SAP Notes and Support: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory can help in troubleshooting and optimizing performance. Familiarize yourself with the different memory areas (e.g., heap memory, roll memory).
  Performance Tuning: Regular performance tuning and monitoring can help prevent such issues from occurring in the future.
  Documentation: Refer to SAP documentation for detailed information on memory parameters and best practices for configuration.
  
  By following these steps, you should be able to address the RT604 error and improve the overall performance of your SAP system.