How To Fix RSDD_ZA155 - Check for checks that have been deactivated because of MemWatcher

RSDD_ZA155 - Overview

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 155

• Message text: Check for checks that have been deactivated because of MemWatcher

What causes this issue?

The system checks whether MemWatcher is activated and which functions it
executes. Depending on the results, certain alert server checks are
deactivated since MemWatcher automatically resolves the problems
recorded by these checks.

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_ZA155 - Check for checks that have been deactivated because of MemWatcher ?

  The SAP error message RSDD_ZA155 indicates that certain checks in the system have been deactivated due to the MemWatcher, which is a memory monitoring tool used in SAP BW (Business Warehouse). This message typically arises when the system detects that memory usage is exceeding certain thresholds, leading to the deactivation of checks to prevent performance degradation or system instability.
  
  Cause:
  
  
  High Memory Usage: The MemWatcher is triggered when the system's memory consumption exceeds predefined limits. This can happen due to various reasons, such as:
  
  Large data loads or queries that consume significant memory.
  Inefficient data models or queries that require excessive resources.
  Insufficient system resources (e.g., RAM) allocated to the SAP BW system.
  
  
  
  Deactivated Checks: To maintain system stability, the MemWatcher may deactivate certain checks that are resource-intensive, which can lead to the error message RSDD_ZA155.
  
  
  
  Solution:
  
  
  Monitor Memory Usage: Use transaction codes like ST02 (Tune Summary) and ST03N (Workload Analysis) to monitor memory usage and identify any