How To Fix SDBALM089 - Hit rate of the rollback cache in %

SDBALM089 - Overview

• Message type: E = Error

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

• Message number: 089

• Message text: Hit rate of the rollback 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDBALM089 - Hit rate of the rollback cache in % ?

  The SAP error message SDBALM089 indicates that the hit rate of the rollback cache is below a certain threshold, which can lead to performance issues in the database. This message is part of the database performance monitoring and is related to the rollback cache's efficiency in handling transactions.
  
  Cause:
  The rollback cache is used to store the undo information for database transactions. A low hit rate means that the database is frequently needing to access the disk to retrieve rollback information rather than finding it in memory. This can occur due to several reasons:
  
  Insufficient Memory Allocation: The rollback cache may not have enough memory allocated to handle the volume of transactions.
  High Transaction Volume: A high number of concurrent transactions can lead to increased demand on the rollback cache.
  Long-Running Transactions: Transactions that take a long time to complete can hold onto rollback information longer, leading to cache pressure.
  
  Configuration Issues: Incorrect configuration settings for