Problem

The coredump generation feature was implemented in PR #4225 but is not documented in the ProxySQL documentation. Users don't know how to use this debugging functionality.

Missing Documentation

The following features need to be documented:

1. coredump_filters table:
   - How to insert filename/line combinations
   - Case-sensitive filename requirements
   - Runtime-only behavior (not persisted to disk)
2. Admin commands:
   - LOAD COREDUMP TO RUNTIME
   - other LOAD/SAVE COREDUMP commands
3. Configuration variables:
   - admin-coredump_generation_threshold - maximum core files limit
   - admin-coredump_generation_interval_ms - time interval between core dumps
4. Usage examples:
   INSERT INTO coredump_filters (filename,line) VALUES ('mysql_data_stream.cpp', 498);
   LOAD COREDUMP TO RUNTIME;
5. Important notes:
   - Filters are instance-specific and reset on restart
   - Filenames are case-sensitive
   - Rate limiting prevents excessive core dump generation

Documentation Location

This should be added to:

• ProxySQL Configuration documentation section
• Debugging and Troubleshooting guide
• Admin commands reference

Priority

Medium - Important for users who need advanced debugging capabilities but may not discover the feature through code inspection.