How To Fix RT171 - &1 &3 > &2 &3 Utilized area of device cache exceeds threshold

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 171

• Message text: &1 &3 > &2 &3 Utilized area of device cache exceeds threshold

What causes this issue?

This message should not appear, as the cache size is functionally
independent from the numnber of configured output devices from SAP R/3
Release 4.0.

System Response

This alert does not lead to a malfunction.

How to fix this error?

SAP therefore recommends that you you do not change the predefined
value of 100% for the threshold.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

INCLUDE BC_SPOOL_MOREINFO OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT171 - &1 &3 > &2 &3 Utilized area of device cache exceeds threshold ?

  The SAP error message RT171 indicates that the utilized area of the device cache exceeds a predefined threshold. This typically occurs in the context of SAP systems that use a database with a cache mechanism, such as SAP HANA or other relational databases. The error message format suggests that it is related to the cache management of a specific device or storage area.
  Cause:
  
  
  Cache Utilization: The primary cause of this error is that the cache utilization has exceeded the configured threshold. This can happen due to:
  
  High volume of data being processed.
  Inefficient queries that lead to excessive cache usage.
  Insufficient cache size for the workload being handled.
  
  
  
  Configuration Issues: The cache settings may not be optimized for the current workload, leading to frequent cache overflows.
  
  
  Data Growth: An increase in the amount of data being processed or stored can lead to higher cache utilization.
  
  
  Solution:
  
  
  Increase Cache Size: If feasible, increase the size of the device cache to accommodate the workload. This can often be done through the database configuration settings.
  
  
  Optimize Queries: Review and optimize the SQL queries being executed to reduce the amount of data being cached. This can involve:
  
  Reducing the number of records fetched.
  Using more selective WHERE clauses.
  Implementing pagination for large datasets.
  
  
  
  Monitor Cache Usage: Use monitoring tools to keep an eye on cache utilization and identify patterns or spikes in usage. This can help in proactive management of cache settings.
  
  
  Adjust Thresholds: If the current threshold is too low for the operational needs, consider adjusting the threshold settings to a higher value.
  
  
  Database Maintenance: Regularly perform database maintenance tasks such as indexing, archiving old data, and cleaning up unnecessary data to help manage cache usage.
  
  
  Consult Documentation: Refer to the specific database documentation for guidelines on cache management and configuration settings.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message.
  Database Documentation: Review the documentation for the specific database being used (e.g., SAP HANA, Oracle, etc.) for best practices on cache management.
  Performance Tuning: Consider engaging in performance tuning exercises to ensure that the system is running efficiently and that resources are being utilized optimally.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support or a database administrator for further assistance.