Error
Error Code:
3924
MySQL Error 3924: Invalid Compression Algorithm Count
Description
This error indicates that a configuration for a MySQL client connection or replication channel has specified too many compression algorithms. MySQL currently supports a maximum of 3 compression algorithms in a list. When this limit is exceeded, the connection or replication setup fails, preventing communication or data synchronization.
Error Message
Specified compression algorithm list '%s' exceeds total count of 3 for channel '%s'.
Known Causes
3 known causesToo Many Replication Compression Algorithms
The `MASTER_COMPRESSION_ALGORITHMS` option in a `CHANGE MASTER TO` statement specified more than the allowed maximum of 3 compression algorithms for a replication channel.
Client Connection Exceeds Compression Limit
A MySQL client application or utility provided a list of compression algorithms for its connection that contained more than the maximum allowed three entries.
Configuration File Over-specification
A configuration file (e.g., `my.cnf` or `my.ini`) defines a list of compression algorithms (e.g., `mysql_compression_algorithms`) with more than three values, causing the error when applied.
Solutions
Coming SoonDetailed 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