Hi Piotr, As a platform administer who runs kilos of Flink jobs, I'd be against the idea to enable unaligned cp by default for our jobs. It may help a significant portion of the users, but the subtle issues around unaligned CP for a few jobs will probably raise a lot more on-calls and incidents. From my point of view, we'd better not enable it by default before removing all the limitations listed in https://nightlies.apache.org/flink/flink-docs-release-1.18/docs/ops/state/checkpointing_under_backpressure/#limitations.
Best, Zhanghao Chen ________________________________ From: Piotr Nowojski <pnowoj...@apache.org> Sent: Friday, January 5, 2024 21:41 To: dev <dev@flink.apache.org> Subject: FLIP-413: Enable unaligned checkpoints by default Hi! I would like to propose by default to enable unaligned checkpoints and also simultaneously increase the aligned checkpoints timeout from 0ms to 5s. I think this change is the right one to do for the majority of Flink users. For more rationale please take a look into the short FLIP-413 [1]. What do you all think? Best, Piotrek https://cwiki.apache.org/confluence/display/FLINK/FLIP-413%3A+Enable+unaligned+checkpoints+by+default