How To Fix BRAIN_DEV084 - Cache is inactive for provider &1. Read mode 'All' impairs performance.

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN_DEV - BRAIN messages (for use by development)

• Message number: 084

• Message text: Cache is inactive for provider &1. Read mode 'All' impairs performance.

What causes this issue?

Read mode 'A Query to read All Data At Once' is very ineffective if the
query cache is not used. This read mode reads all data at once into the
query cache in order to answer all subsequent navigation steps using the
query cache. The query cache has been switched off for this query
however. Huge amounts of data are therefore read unnecessarily during
each navigation step.

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?

Either change the read mode, or change the query settings in order to
use at least the local query cache.

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 BRAIN_DEV084 - Cache is inactive for provider &1. Read mode 'All' impairs performance. ?

  The SAP error message BRAIN_DEV084 indicates that the cache for a specific data provider is inactive, which can lead to performance issues when reading data in "All" mode. This message is typically encountered in the context of SAP BW (Business Warehouse) or SAP HANA environments where data retrieval performance is critical.
  Cause:
  
  
  Cache Inactivity: The cache for the specified provider (denoted by &1) is not active. This can happen due to various reasons, such as:
  
  The cache was manually deactivated.
  The cache has expired or was invalidated due to changes in the underlying data model or data source.
  System settings or configurations that prevent caching from being utilized.
  
  
  
  Configuration Issues: There may be configuration settings that are not optimized for caching, leading to the cache being inactive.
  
  
  Data Model Changes: Changes in the data model or the underlying data source can lead to cache invalidation.
  
  
  Solution:
  
  
  Activate Cache: 
  
  Check the settings for the data provider in the SAP BW or HANA system. Ensure that caching is enabled for the provider.
  You can do this by navigating to the relevant data provider settings in the SAP BW administration or modeling tools.
  
  
  
  Rebuild Cache: 
  
  If the cache is inactive due to invalidation, you may need to refresh or rebuild the cache. This can often be done by executing a data load or a specific transaction that triggers cache rebuilding.
  
  
  
  Check Configuration: 
  
  Review the configuration settings for the data provider to ensure that caching is properly set up. This includes checking the settings for the InfoProvider, queries, and any relevant performance settings.
  
  
  
  Monitor Performance: 
  
  After activating the cache, monitor the performance of the queries to ensure that the changes have had the desired effect.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or support notes related to caching in BW or HANA for more detailed instructions and best practices.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to caching and performance in your version of SAP BW or HANA.
  Performance Tuning: Consider general performance tuning practices for SAP BW or HANA, which may include optimizing data models, query design, and system resources.
  SAP Community: Engage with the SAP Community forums for insights and experiences from other users who may have encountered similar issues.
  
  By addressing the cache inactivity and ensuring that it is properly configured and utilized, you can improve the performance of data retrieval operations in your SAP environment.