How To Fix RSDD_ZA121 - Check for round-robin problems in queues

RSDD_ZA121 - Overview

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 121

• Message text: Check for round-robin problems in queues

What causes this issue?

Some of the preprocessors have round-robin problems.

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_ZA121 - Check for round-robin problems in queues ?

  The SAP error message RSDD_ZA121, which indicates a problem with round-robin processing in queues, typically arises in the context of SAP BW (Business Warehouse) or SAP HANA environments. This error suggests that there may be issues with the distribution of data processing tasks across multiple processes or threads, leading to inefficiencies or failures in data loading or processing.
  
  Cause:
  
  Queue 
  Configuration Issues: The round-robin distribution mechanism may not be configured correctly, leading to uneven distribution of workload among available processes.
  Resource Contention: If multiple processes are trying to access the same resources simultaneously, it can lead to bottlenecks and failures in processing.
  Data Volume: Large volumes of data being processed can overwhelm the system, especially if the round-robin mechanism is not effectively managing the load.
  System Performance: Insufficient system resources (CPU, memory, etc.) can lead to performance issues, causing the round-robin mechanism to fail.
  Network Issues: If the data is being pulled from or pushed to