How To Fix SMMSS_ALERTS023 - Data cache hit ratio of &1% could be improved

SMMSS_ALERTS023 - Overview

• Message type: E = Error

• Message class: SMMSS_ALERTS - Message class for MSSQL rz20 messages

• Message number: 023

• Message text: Data cache hit ratio of &1% could be improved

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMMSS_ALERTS023 - Data cache hit ratio of &1% could be improved ?

  The SAP error message SMMSS_ALERTS023 indicates that the data cache hit ratio is low, specifically at a percentage of &1%. This message is part of the SAP system monitoring alerts and is related to performance issues in the system.
  
  Cause:
  The data cache hit ratio measures the effectiveness of the cache in storing frequently accessed data. A low hit ratio suggests that the system is frequently accessing the database instead of retrieving data from the cache, which can lead to performance degradation. The causes of a low data cache hit ratio can include:
  
  Insufficient Cache Size: The cache may not be large enough to hold the frequently accessed data.
  High Data Volume: An increase in the volume of data being processed can lead to cache misses.
  Inefficient Data Access Patterns: If the application is not designed to take advantage of caching, it may lead to unnecessary database calls.
  
  Configuration Issues: Incorrect configuration settings for the cache