Hi Allen, >From my experience, you can do your init setup by the following 2 ways:
1. Do your init setup in RichFunction#open method, see [1] for details. 2. Do your init setup in static block, it will be executed when the class is loaded. [1] https://nightlies.apache.org/flink/flink-docs-master/docs/dev/datastream/user_defined_functions/#rich-functions Best, Lijie Allen Zoo <alinz...@gmail.com> 于2022年8月2日周二 16:11写道： > Hi all, > We went to do some init env setup before the flink task run, And we have > noticed the Task Lifecycle | Apache Flink > <https://nightlies.apache.org/flink/flink-docs-master/docs/internals/task_lifecycle/> > doc > described, but we can't find listener/hook/SPI interface do some custom > init jobs before task running. Does flink now have relevant interfaces ? >
