Thanks for your confirmation,Yunfeng.
------------------ ???????? ------------------ ??????: "Yunfeng Zhou" <flink.zhouyunf...@gmail.com>; ????????: 2024??7??5??(??????) ????9:46 ??????: "Enric Ott"<243816...@qq.com>;"user"<user@flink.apache.org>; ????: Re: puzzle on OperatorChain Hi Enric, Yes that even if there is only one operator, StreamTask will still create an OperatorChain for it. OperatorChain provides an abstract to process events like endInputs, checkpoints and OperatorEvents in a unified way, no matter how may operators are running in the StreamTask. You may refer to StreamTask.operatorChain for its detailed functionalities. Best, Yunfeng On Thu, Jul 4, 2024 at 5:14?6?2PM Enric Ott <243816...@qq.com> wrote: > > Hello,guys: > Does Flink transform all operators(including source operator) to OperatorChain even disableoperatorchaining was set to true and even the OperatorChain contains only one single Operator. > Thanks.