How To Fix RSDD_ZA159 - Check of Hosts That Do Not Use Shared Memory

RSDD_ZA159 - Overview

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 159

• Message text: Check of Hosts That Do Not Use Shared Memory

What causes this issue?

Under certain circumstances, it is possible that the BWA is configured
in such a way that it does not used shared memory. This results in a
loss of performance.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_ZA159 - Check of Hosts That Do Not Use Shared Memory ?

  The SAP error message RSDD_ZA159, which indicates a check of hosts that do not use shared memory, typically arises in the context of SAP BW (Business Warehouse) or SAP HANA environments. This error is related to the configuration of the system's memory management, particularly when it comes to how different hosts in a distributed environment communicate and share data.
  
  Cause:
  
  
  
  Configuration Issues: The error often occurs when the SAP system is not configured to use shared memory for communication between different application servers or hosts. This can happen if the necessary parameters for shared memory are not set correctly in the system profile.
  
  
  Network Configuration: If the network settings do not allow for shared memory communication, or if there are firewall rules blocking the necessary ports, this error can also occur.
  
  
  Resource Limitations: If the system is running low on resources (like memory), it may not be able to allocate shared memory segments properly.
  
  
  
  Solution:
  
  
  Check