How To Fix SDBALM082 - Hit rate of the data cache in %

SDBALM082 - Overview

• Message type: E = Error

• Message class: SDBALM - SAP DB and liveCache Alert Monitoring

• Message number: 082

• Message text: Hit rate of the data cache in %

Description
The system calculates and displays the hitrate since the last run of
the data collector. In the case of the first run of the data collector
after a restart of the instance or after the Alert Monitor is started,
the system does not display a hitrate.
Data Collector
<ZH>Collector B</>
(RZ20 -> SAP CCMS Technical Experts Monitors -> All Monitoring Contexts
,,-> <Name of the database connection> -> Collectors and Internals
-> Collectors -> Collector B)

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

Preset runtime interval of Collector B: 15 minutes

Error message extract from SAP system. Copyright SAP SE.

SDBALM082 - Details

• The SAP error message SDBALM082 indicates that the hit rate of the data cache is below a certain threshold, which can lead to performance issues in your SAP system. This message is part of the SAP database performance monitoring and is related to the efficiency of the data cache in retrieving data.
  
  Cause:
  The hit rate of the data cache is a measure of how often the requested data is found in the cache versus how often it has to be retrieved from the database. A low hit rate can be caused by several factors, including:
  
  Insufficient Cache Size: The data cache may not be large enough to hold frequently accessed data.
  High Data Volume: An increase in the volume of data being processed can lead to cache misses.
  Inefficient Queries: Poorly optimized queries may lead to excessive data retrieval from the database.
  Data Access Patterns: Changes in how data is accessed can affect cache efficiency.
  Database