How To Fix IUUC_CLOG_CORE121 - Partition Command

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_CLOG_CORE - SLT Change Log Messages

• Message number: 121

• Message text: Partition Command

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_CLOG_CORE121 - Partition Command ?

  The SAP error message IUUC_CLOG_CORE121 typically relates to issues with the Change Data Capture (CDC) mechanism in SAP Landscape Transformation (SLT) or SAP Data Services. This error can occur during the replication process when there are problems with the partitioning of the change log tables.
  Cause:
  
  Partitioning Issues: The error often arises when there are problems with the partitioning of the change log tables. This can happen if the partitioning scheme is not correctly set up or if there are inconsistencies in the data.
  Data Volume: High data volume or large transactions can lead to issues with the change log, especially if the system is not optimized for handling such loads.
  Configuration Errors: Incorrect configuration settings in SLT or the underlying database can also lead to this error.
  Database Locking: If there are locks on the database tables that the change log is trying to access, it can cause this error.
  
  Solution:
  
  Check Partitioning Configuration: Ensure that the partitioning of the change log tables is correctly configured. You may need to review the partitioning strategy and adjust it as necessary.
  Monitor Data Volume: If the error is related to high data volume, consider optimizing the data load or breaking it into smaller batches.
  Review SLT Configuration: Check the SLT configuration settings to ensure they are correctly set up for your environment. This includes checking the connection settings, replication settings, and any relevant parameters.
  Database Maintenance: Perform database maintenance tasks such as updating statistics, rebuilding indexes, or clearing old data from the change log tables.
  Check for Locks: Use database tools to check for any locks on the tables involved in the change log process. Resolve any locking issues that may be present.
  Consult SAP Notes: Look for relevant SAP Notes or Knowledge Base Articles (KBAs) that may address this specific error. SAP frequently updates its documentation with solutions for known issues.
  
  Related Information:
  
  SAP SLT Documentation: Review the official SAP documentation for SLT to understand the architecture and best practices for configuration and maintenance.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Monitoring Tools: Utilize SAP monitoring tools to keep an eye on the performance of the SLT system and the underlying database to preemptively catch issues before they escalate.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.