lvyanquan commented on PR #4509: URL: https://github.com/apache/flink-cdc/pull/4509#issuecomment-5337252265
And Could we make this metric opt-in through a source configuration instead of enabling it by default? This is not a purely local metric. It executes `SHOW MASTER STATUS` against the MySQL server every 10 seconds. Enabling it by default means that all existing CDC jobs will start issuing additional queries after upgrading, even when users do not need this metric. When many CDC jobs connect to the same MySQL instance, these recurring queries may accumulate and introduce unexpected server-side overhead. I suggest disabling this feature by default and providing a configuration option to enable it explicitly. When disabled, the connector should skip both metric registration and the periodic master-status query. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
