How To Fix DB6627 - Current database heap usage

SAP Error Message - Details

• Message type: E = Error

• Message class: DB6 - DB6: Alert Monitoring and Alert Configuration

• Message number: 627

• Message text: Current database heap usage

Except for end of first paragraph, copied from DB6 613

What causes this issue?

The database heap is a global area the database uses for memory areas
it administers itself, such as the:
Log buffer
Catalog cache
Control structures for the buffer pool
Instead of monitoring the upper limits, the system monitors here the
current database heap fill level.

System Response

If the database heap is full, transactions may terminated.

How to fix this error?

If there is an error, increase the size of the database heap using:
<LB>UPDATE DB CFG USING DBHEAP <value></>
Increasing this value increases the use of virtual memory, which
increases paging if there is not enough main memory available.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB6627 - Current database heap usage ?

  The SAP error message DB6627 indicates that the current database heap usage has reached a critical level. This message is typically related to the database's memory management and can occur in various SAP database systems, including those using Oracle, SQL Server, or SAP HANA.
  Cause:
  The error is generally caused by one or more of the following factors:
  
  High Memory Usage: The database is consuming a significant amount of memory, which may be due to large transactions, inefficient queries, or insufficient memory allocation.
  Configuration Issues: The database parameters related to memory allocation may not be optimally configured.
  Memory Leaks: There could be memory leaks in the application or database processes that are consuming memory without releasing it.
  Increased Load: A sudden increase in user load or data processing can lead to higher memory consumption.
  
  Solution:
  To resolve the DB6627 error, consider the following steps:
  
  Monitor Database Usage: Use database monitoring tools to check the current memory usage and identify any processes that are consuming excessive memory.
  Optimize Queries: Review and optimize any long-running or resource-intensive queries that may be contributing to high memory usage.
  Adjust Database Parameters: Check and adjust the database configuration parameters related to memory allocation. This may include increasing the size of the database heap or buffer pool.
  Restart Database: If the memory usage is unusually high and cannot be resolved through optimization, consider restarting the database to clear the memory.
  Check for Memory Leaks: Investigate the application and database logs for any signs of memory leaks and address them accordingly.
  Increase Hardware Resources: If the database consistently runs out of memory, consider upgrading the hardware resources (e.g., adding more RAM) to accommodate the workload.
  Consult Documentation: Refer to the specific database documentation for guidelines on memory management and configuration settings.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to the DB6627 error.
  Database Documentation: Review the documentation for the specific database you are using (e.g., Oracle, SQL Server, SAP HANA) for best practices on memory management.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  
  By following these steps, you should be able to address the DB6627 error and improve the overall performance of your SAP database system.