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Kezhu Wang commented on FLINK-20649: ------------------------------------ Should this be problem of {{CustomTableSourceFunctionBase.close}} ? If you think it is not, what if {{CustomMapFunction.map}} stuck ? > StreamTask closeAllOperators stuck > ---------------------------------- > > Key: FLINK-20649 > URL: https://issues.apache.org/jira/browse/FLINK-20649 > Project: Flink > Issue Type: Bug > Components: Runtime / Task > Affects Versions: 1.12.0 > Reporter: weiyunqing > Priority: Major > Attachments: image-2020-12-17-17-57-41-680.png > > > When a StreamTask exits due to an internal exception, the StreamTask does not > use an asynchronous thread to closeAllOperators or set a timeout. The > StreamTask will be stuck here (no upstream and downstream scenarios) > !image-2020-12-17-17-57-41-680.png! -- This message was sent by Atlassian Jira (v8.3.4#803005)