Rate Limiting

Kong Gateway 3.9.x

• Fixed an issue where the returned values from get_redis_connection() were incorrect.
• Fixed an issue that caused an HTTP 500 error when config.hide_client_headers was set to true and the request exceeded the rate limit.

Kong Gateway 3.8.x

• Fixed an issue where the DP would report that deprecated config fields were used when configuration was pushed from the CP.
• Fixed an issue that caused an HTTP 500 error when hide_client_headers was set to true and the request exceeded the rate limit.

Kong Gateway 3.7.x

• Fixed migration of Redis configuration.

Kong Gateway 3.6.x

• This plugin can now be scoped to consumer groups.
• Standardized Redis configuration across plugins. The Redis configuration now follows a common schema that is shared across other plugins.
• The plugin now provides better accuracy in counters when config.sync_rate is used with the Redis policy.
• Fixed an issue where all counters were synced to the same database at the same rate.

Kong Gateway 3.1.x

• Added the ability to customize the error code and message with the configuration parameters config.error_code and config.error_message.

Kong Gateway 3.0.x

• The default policy is now local for all deployment modes.
• Fixed a PostgreSQL deadlock issue that occurred when the cluster policy was used with two or more metrics (for example, second and day.)

Kong Gateway 2.8.x

• Added the config.redis_username configuration parameter.
• Fixed an issue where any plugins using the rate-limiting library, when used together, would interfere with each other and fail to synchronize counter data to the central data store.
• Dismissed confusing log entry from Redis regarding rate limiting.
• Fixed a 500 error associated with performing arithmetic functions on a nil value by adding a nil value check after performing ngx.shared.dict operations.

Kong Gateway 2.7.x

• Added the config.redis_ssl, config.redis_ssl_verify, and config.redis_server_name configuration parameters.