How To Fix MDC_PROCESS014 - Delta-merge not possible during bridge phase, expect slower performance

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_PROCESS - Messages In Context Of MDC Processing

• Message number: 014

• Message text: Delta-merge not possible during bridge phase, expect slower performance

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDC_PROCESS014 - Delta-merge not possible during bridge phase, expect slower performance ?

  The SAP error message MDC_PROCESS014 indicates that a delta merge operation is not possible during the bridge phase of a database table in the SAP HANA database. This situation can lead to slower performance because the system is unable to optimize the data storage and retrieval processes effectively.
  Cause:
  
  Bridge Phase: The bridge phase occurs when a table is in a transitional state, typically during a delta merge operation. During this phase, the system is unable to perform a delta merge because it is still processing data changes.
  High Volume of Delta Changes: If there are a large number of changes being made to the data, the system may not be able to keep up with the delta merge process.
  Resource Constraints: Insufficient system resources (CPU, memory, I/O) can hinder the delta merge process, causing it to be delayed or unable to execute.
  Configuration Issues: Incorrect configuration settings for the database or the specific table can also lead to this error.
  
  Solution:
  
  Wait for the Bridge Phase to Complete: Often, the simplest solution is to wait for the current bridge phase to complete. Once it is done, the delta merge can proceed normally.
  Monitor System Performance: Use SAP HANA monitoring tools to check the performance of the system. Look for any bottlenecks in CPU, memory, or disk I/O that may be affecting the delta merge process.
  Optimize Data Changes: If possible, reduce the volume of data changes being made during peak times. Batch updates or schedule them during off-peak hours to minimize the impact on performance.
  Increase Resources: If resource constraints are identified, consider scaling up the hardware resources (CPU, memory, storage) allocated to the SAP HANA database.
  Check Configuration: Review the configuration settings for the database and the specific table to ensure they are optimized for performance. This may include adjusting parameters related to delta merges and memory allocation.
  Regular Maintenance: Perform regular maintenance tasks, such as data archiving and cleaning up unnecessary data, to keep the database performance optimal.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes or Knowledge Base Articles (KBAs) that may provide additional insights or specific fixes related to this error.
  SAP HANA Documentation: Refer to the official SAP HANA documentation for best practices on managing delta merges and optimizing performance.
  Monitoring Tools: Utilize SAP HANA Studio or SAP HANA Cockpit to monitor the health and performance of your HANA database, which can help in diagnosing issues related to delta merges.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.