How To Fix ESH_RUBU_MSG025 - &1 bytes of free shared memory available

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_RUBU_MSG - ESH RuBu - Messages

• Message number: 025

• Message text: &1 bytes of free shared memory available

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_RUBU_MSG025 - &1 bytes of free shared memory available ?

  The SAP error message ESH_RUBU_MSG025 indicates that there is insufficient shared memory available for the operation you are trying to perform. This error typically occurs in the context of the SAP Enterprise Search or the SAP NetWeaver system when the system runs out of shared memory resources.
  Cause:
  
  Insufficient Shared Memory Configuration: The shared memory settings in the SAP system may not be configured to handle the workload, leading to insufficient memory for operations.
  Memory Leaks: There may be memory leaks in the application or other processes consuming more memory than expected.
  High Load: The system may be under heavy load, causing the available shared memory to be quickly consumed.
  Improper System Configuration: The parameters for shared memory allocation may not be set correctly in the SAP system.
  
  Solution:
  
  
  Increase Shared Memory Allocation:
  
  You can increase the shared memory allocation by adjusting the parameters in the SAP profile. Look for parameters like shmmax, shmmin, and shmall in the operating system settings.
  In the SAP system, you can adjust the rdisp/shm_max parameter to increase the maximum shared memory size.
  
  
  
  Check and Optimize Memory Usage:
  
  Monitor the memory usage of the SAP system and identify any processes that may be consuming excessive memory.
  Use transaction codes like SM50 or SM66 to check for long-running processes or memory-intensive jobs.
  
  
  
  Restart the SAP System:
  
  If the issue persists, consider restarting the SAP system to clear any temporary memory issues.
  
  
  
  Review System Logs:
  
  Check the system logs (transaction SM21) for any related errors or warnings that could provide more context about the memory issue.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide guidance on memory management.
  
  
  
  System Upgrade:
  
  If the system is consistently running out of memory, consider upgrading the hardware or optimizing the system configuration to better handle the workload.
  
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory can help in configuring the system appropriately. Familiarize yourself with the different types of memory (heap memory, shared memory, etc.) used by SAP.
  SAP Basis Administration: Knowledge of SAP Basis administration can be beneficial for managing system resources effectively.
  Performance Monitoring Tools: Utilize tools like SAP Solution Manager or other performance monitoring tools to keep track of system performance and memory usage.
  
  If the problem persists after trying the above solutions, it may be necessary to engage with SAP support for further assistance.