Error
Error Code: ACFS-05021

Oracle Database Error ACFS-05021: Replication Daemon Shutdown Failure

📦 Oracle Database
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Description

The ACFS-05021 error indicates that the Oracle ACFS (ASM Cluster File System) replication daemons could not be stopped. This typically occurs when attempting to disable or reconfigure ACFS replication, or during system maintenance and shutdown operations. It suggests that background processes managing data synchronization are unresponsive or encountering an issue during termination.
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Error Message

cannot stop replication daemons
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Known Causes

4 known causes
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Daemons Are Hung or Busy
The ACFS replication daemons might be actively processing replication tasks or have become unresponsive, preventing a clean shutdown.
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Insufficient User Privileges
The operating system user attempting to stop the ACFS replication daemons lacks the necessary permissions (e.g., root or appropriate Oracle privileges) to terminate the processes.
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Underlying OS or Resource Issues
System-level problems such as low memory, CPU contention, or other hung OS processes can interfere with the graceful termination of ACFS daemons.
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ACFS/ASM Configuration Inconsistencies
Misconfigurations within ACFS or ASM, or inconsistencies in the replication setup, can lead to daemons failing to respond to stop commands.
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service