danny0405 commented on issue #12585: URL: https://github.com/apache/hudi/issues/12585#issuecomment-2574214708
> caution: the reader has fallen behind too much from the writer, tweak 'read.tasks' option to add parallelism of read tasks This log indicates the streaming reader has lag too much, probably there could be two reasons: 1. the write to Kudu itself is kind of slow, which cause the input splits stacked up in the operator state and then cause delay; 2. I see an explicit read start commit is declared, is it a long history commit then? A start commit earlier than the first active commit on active time would trigger a full table scan plus filtering. -- 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]
