How To Fix STREX556 - QueueServer Memory

SAP Error Message - Details

• Message type: E = Error

• Message class: STREX - Message for TREX ABAP Client

• Message number: 556

• Message text: QueueServer Memory

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message STREX556 - QueueServer Memory ?

  The SAP error message STREX556 typically relates to issues with the Queue Server memory in the context of SAP's application server or message processing. This error can occur in scenarios involving the SAP Process Integration (PI) or Process Orchestration (PO) systems, where message queues are managed.
  Cause:
  The STREX556 error message usually indicates that the Queue Server has run out of memory or is unable to allocate sufficient memory for processing messages. This can happen due to several reasons, including:
  
  High Volume of Messages: A sudden spike in the number of messages being processed can lead to memory exhaustion.
  Memory Leaks: Inefficient memory management in the application or custom code can lead to memory leaks, causing the Queue Server to run out of memory over time.
  Configuration Issues: Incorrect configuration settings for the Queue Server or insufficient memory allocation in the server settings.
  Resource Limits: Operating system-level resource limits (like ulimit settings in Unix/Linux) may restrict the memory available to the SAP processes.
  
  Solution:
  To resolve the STREX556 error, consider the following steps:
  
  Monitor Memory Usage: Use transaction codes like ST02 (Buffer Monitor) and SM50 (Work Process Overview) to monitor memory usage and identify any bottlenecks.
  Increase Memory Allocation: If the Queue Server is consistently running out of memory, consider increasing the memory allocation for the SAP instance. This can be done in the instance profile parameters (e.g., abap/heap_area_total).
  Optimize Message Processing: Review the message processing logic to ensure it is efficient. Look for any custom code that may be causing memory leaks and optimize it.
  Adjust Queue Server Configuration: Check the configuration settings for the Queue Server. Ensure that the settings are appropriate for the expected load.
  Restart the Queue Server: In some cases, a simple restart of the Queue Server can temporarily alleviate memory issues.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known memory issues.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on configuring and managing the Queue Server.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Tuning: Consider conducting a performance tuning exercise for your SAP system to ensure optimal resource utilization.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.