How To Fix DB6PM705 - DBHEAP is too small (CATALOGCACHE_SZ, LOGBUFSZ) - should be at least &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DB6PM - DB2 UDB for UNIX, Windows: Performance Monitoring

• Message number: 705

• Message text: DBHEAP is too small (CATALOGCACHE_SZ, LOGBUFSZ) - should be at least &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB6PM705 - DBHEAP is too small (CATALOGCACHE_SZ, LOGBUFSZ) - should be at least &1 ?

  The SAP error message DB6PM705 indicates that the database heap size is too small for the operations being performed. Specifically, it refers to the parameters CATALOGCACHE_SZ and LOGBUFSZ, which are related to the database's configuration settings. This error typically occurs in environments using IBM Db2 as the database for SAP applications.
  Cause:
  The error arises when the current settings for the database parameters CATALOGCACHE_SZ (catalog cache size) and LOGBUFSZ (log buffer size) are insufficient for the workload being processed. This can happen due to:
  
  Increased Workload: A sudden increase in the number of transactions or data being processed can exceed the current cache and buffer sizes.
  Default Settings: The default values for these parameters may not be adequate for your specific SAP application needs.
  Database Configuration Changes: Changes in the database configuration or the addition of new features may require adjustments to these parameters.
  
  Solution:
  To resolve this error, you need to increase the values of the CATALOGCACHE_SZ and LOGBUFSZ parameters. Here’s how you can do that:
  
  
  Access the Database Configuration:
  
  Use the Db2 command line or a database management tool to access the database configuration.
  
  
  
  Check Current Settings:
  
  You can check the current values of the parameters using the following command:
  db2 get db cfg for <database_name>
  
  
  
  
  Modify the Parameters:
  
  Increase the values of CATALOGCACHE_SZ and LOGBUFSZ. For example:
  db2 update db cfg for <database_name> using CATALOGCACHE_SZ <new_value>
  db2 update db cfg for <database_name> using LOGBUFSZ <new_value>
  
  Replace <new_value> with the recommended size (at least the value indicated in the error message).
  
  
  
  Restart the Database:
  
  After making changes, you may need to restart the database for the changes to take effect:
  db2 stop db <database_name>
  db2 start db <database_name>
  
  
  
  
  Monitor Performance:
  
  After making the changes, monitor the database performance to ensure that the new settings are adequate and that the error does not reoccur.
  
  
  
  Related Information:
  
  Documentation: Refer to the official SAP and Db2 documentation for detailed guidelines on configuring database parameters.
  Performance Tuning: Regularly review and tune database parameters based on the workload and performance metrics.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message.
  
  By following these steps, you should be able to resolve the DB6PM705 error and ensure that your SAP application runs smoothly.