How To Fix RZ429 - Frequent writes to system log

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 429

• Message text: Frequent writes to system log

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RZ429 - Frequent writes to system log ?

  The SAP error message RZ429 indicates that there are frequent writes to the system log, which can be a sign of performance issues or excessive logging activity in the SAP system. This can lead to performance degradation and may fill up the system log quickly, making it difficult to identify important messages.
  Causes:
  
  High Volume of Log Messages: Certain applications or processes may generate a high volume of log messages, leading to frequent writes.
  Error Conditions: Repeated errors or exceptions in the system can cause excessive logging.
  Configuration Issues: Misconfigured logging settings or parameters can lead to unnecessary log entries.
  Background Jobs: Background jobs that run frequently and generate logs can contribute to this issue.
  Custom Code: Custom ABAP programs or enhancements that log excessively can also be a cause.
  
  Solutions:
  
  Analyze Log Volume: Use transaction codes like SLG1 (Application Log) or SM21 (System Log) to analyze the log entries and identify the source of excessive logging.
  Adjust Logging Levels: Review and adjust the logging levels for specific applications or components. This can often be done in the configuration settings of the application.
  Error Handling: Investigate and resolve any underlying issues that are causing repeated errors. Fixing these issues can reduce the number of log entries.
  Optimize Background Jobs: Review the frequency and logging behavior of background jobs. If they are generating excessive logs, consider optimizing them.
  Custom Code Review: If custom code is identified as a source of excessive logging, review and modify it to reduce unnecessary log entries.
  System Parameters: Check system parameters related to logging and adjust them as necessary. For example, parameters like rdisp/max_wprun_time can be adjusted to manage the performance of work processes.
  
  Related Information:
  
  Monitoring Tools: Use SAP Solution Manager or other monitoring tools to keep track of system performance and log activity.
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to logging issues.
  Performance Tuning: Consider general performance tuning practices for your SAP system, which can help alleviate issues related to excessive logging.
  Regular Maintenance: Implement regular maintenance tasks to clear old log entries and manage log file sizes.
  
  By addressing the root causes of the frequent writes to the system log, you can improve the performance of your SAP system and ensure that important log messages are not lost in the noise of excessive logging.