MySQL Error 3920: Invalid Replication Compression

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Description

This error occurs during MySQL replication setup when the `MASTER_COMPRESSION_ALGORITHMS` option is configured with an invalid or unsupported value. It indicates that the specified compression method for the master server is not recognized or allowed by the current MySQL server version for the given replication channel.

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Error Message

Invalid MASTER_COMPRESSION_ALGORITHMS '%s' for channel '%s'.

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Known Causes

3 known causes

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Unsupported Compression Algorithm

The compression algorithm specified in `MASTER_COMPRESSION_ALGORITHMS` is not valid or supported by the MySQL server version being used.

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Typographical Error

The compression algorithm name was misspelled or incorrectly capitalized in the `CHANGE MASTER TO` statement.

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Incorrect Syntax

The list of compression algorithms was not provided using the correct comma-separated format in the configuration.

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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

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Related Errors

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