How To Fix D3184 - Last copy &1 active log data set is &2 percent full

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 184

• Message text: Last copy &1 active log data set is &2 percent full

What causes this issue?

This message is issued when the last available active log dataset is 5%
full and is reissued after each additional 5% of the dataset space is
filled.
The message corresponds to the DB2 message DSNJ110E. See "DB2 UDB for
OS/390 Version 6, Messages and Codes, Volume 1" for details.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message D3184 - Last copy &1 active log data set is &2 percent full ?

  The SAP error message D3184 indicates that the last copy of the active log data set is nearing its capacity, specifically that it is a certain percentage full. This message is a warning that the active log space is running low, which can lead to issues with database operations if not addressed.
  Cause:
  The primary cause of this error is that the active log data set, which is used by the database to store transaction logs, is filling up. This can happen due to:
  
  High Transaction Volume: A large number of transactions being processed can quickly fill up the log space.
  Long-Running Transactions: Transactions that take a long time to complete can hold onto log space longer than necessary.
  Insufficient Log Space Configuration: The configuration for the active log data set may not be adequate for the volume of transactions being processed.
  Backup Issues: If log backups are not being performed regularly, the log space may not be cleared out, leading to it filling up.
  
  Solution:
  To resolve the D3184 error, you can take the following actions:
  
  
  Monitor and Analyze Log Usage: Check the current usage of the active log data set to understand how quickly it is filling up. Use transaction codes like DBACOCKPIT or ST04 to monitor database performance and log usage.
  
  
  Increase Log Space: If the log space is consistently filling up, consider increasing the size of the active log data set. This can be done by adjusting the database configuration settings.
  
  
  Perform Log Backups: Ensure that regular log backups are being performed. This will help to free up space in the active log data set. You can schedule log backups to occur at regular intervals.
  
  
  Optimize Transactions: Review the application and database transactions to identify any long-running transactions that can be optimized or broken down into smaller transactions.
  
  
  Check for Errors: Ensure that there are no errors in the backup process that could be preventing log space from being cleared.
  
  
  Database Maintenance: Regularly perform database maintenance tasks, such as archiving old data, to help manage log space usage.
  
  
  Related Information:
  
  Database Configuration: Review the database configuration settings related to log file management. This includes parameters for log file size and the number of log files.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message.
  Documentation: Refer to the SAP documentation for your specific database (e.g., HANA, Oracle, SQL Server) for best practices on managing log files and performance tuning.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the risk of running into this error in the future.