How To Fix RSDD_ZA189 - CPU usage of service (%)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 189

• Message text: CPU usage of service (%)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_ZA189 - CPU usage of service (%) ?

  The SAP error message RSDD_ZA189 typically relates to the CPU usage of a service in the context of SAP BW (Business Warehouse) or SAP HANA. This message indicates that the CPU usage of a particular service has exceeded a predefined threshold, which can lead to performance issues or system instability.
  Cause:
  
  High Data Volume: Large data loads or complex queries can lead to increased CPU usage.
  Inefficient Queries: Poorly optimized queries or data models can consume excessive CPU resources.
  Concurrent Processes: Multiple users or processes running simultaneously can lead to high CPU consumption.
  System Configuration: Inadequate hardware resources or misconfigured system settings can contribute to high CPU usage.
  Background Jobs: Scheduled jobs running during peak hours can also spike CPU usage.
  
  Solution:
  
  Optimize Queries: Review and optimize the queries that are causing high CPU usage. Use transaction codes like ST05 (SQL Trace) to analyze query performance.
  Monitor System Performance: Use transaction codes like ST03N (Workload Analysis) and ST06 (Operating System Monitor) to monitor CPU usage and identify bottlenecks.
  Adjust Scheduling: If background jobs are causing high CPU usage, consider rescheduling them to off-peak hours.
  Increase Hardware Resources: If the system consistently runs at high CPU usage, consider upgrading the hardware (CPU, RAM) or scaling out the system.
  Review Data Models: Ensure that data models are designed efficiently. Avoid unnecessary calculations or aggregations in the data flow.
  Limit Concurrent Users: If possible, limit the number of concurrent users during peak times to reduce CPU load.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as performance improvements are often included in these releases.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to performance issues and specific error messages for additional guidance.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have faced similar issues.
  Performance Tuning Guides: Refer to SAP's official performance tuning guides for BW and HANA to implement best practices.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the CPU usage issues indicated by the RSDD_ZA189 error message.