How To Fix RT059 - Monitoring object: Swap Space

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 059

• Message text: Monitoring object: Swap Space

What causes this issue?

This monitoring tree element (MTE) reports on the amount of swap space
available in a particular host system.
Swap space is the amount of disk storage available for swapping or
paging out data from main memory. Because of its high-performance
memory management design, the SAP system makes intensive use of swap
space.

System Response

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

How to fix this error?

A swap space alert means that swap space is becoming critically short in
your system. Exhausting swap space in a system that is hosting an SAP
application server causes severe problems in the system.
See the memory management documentation (Help -> SAP Library, SAP
NetWeaver -> Application Platform -> ABAP Technology -> Client/Server
Technology -> SAP Memory Management) for help in preventing and
correcting swap space problems.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT059 - Monitoring object: Swap Space ?

  The SAP error message RT059, which refers to "Monitoring object: Swap Space," typically indicates that the system is experiencing issues related to insufficient swap space. Swap space is a portion of the hard drive that is used as virtual memory when the physical RAM is full. When the system runs out of physical memory, it uses swap space to continue functioning, but if the swap space is also insufficient, it can lead to performance issues or system instability.
  Cause:
  
  Insufficient Swap Space: The primary cause of this error is that the allocated swap space is not enough to handle the memory requirements of the SAP system and its processes.
  High Memory Usage: If the SAP system or other applications are consuming a large amount of memory, it can lead to the exhaustion of available swap space.
  Configuration Issues: Incorrect configuration of the swap space settings in the operating system can also lead to this error.
  
  Solution:
  
  
  Increase Swap Space:
  
  Linux: You can increase swap space by creating a new swap file or partition. For example, to create a new swap file:
  sudo fallocate -l 4G /swapfile
  sudo chmod 600 /swapfile
  sudo mkswap /swapfile
  sudo swapon /swapfile
  Then, add the swap file to /etc/fstab to make it permanent.
  
  Windows: Adjust the virtual memory settings in the system properties to increase the paging file size.
  
  
  
  Monitor Memory Usage: Use monitoring tools to check memory usage and identify processes that are consuming excessive memory. You can use tools like top, htop, or vmstat on Linux, or Task Manager on Windows.
  
  
  Optimize SAP Configuration: Review and optimize the SAP configuration to ensure that it is not using more memory than necessary. This may involve tuning parameters related to memory allocation for various SAP components.
  
  
  Upgrade Hardware: If the system consistently runs out of memory, consider upgrading the physical RAM in the server to provide more resources for the SAP system.
  
  
  Regular Maintenance: Regularly check and maintain the system to ensure that it is running optimally. This includes clearing unnecessary data, optimizing database performance, and ensuring that the operating system is configured correctly.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for specific recommendations based on your SAP version.
  Operating System Documentation: Refer to the documentation for your operating system for detailed instructions on managing swap space.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  By addressing the swap space issue, you can help ensure that your SAP system runs smoothly and efficiently.