Error with Flink-Gelly, lastJobExecutionResult is null

Hello, everyone. I am using Flink-Gelly. I got an error when running the example code of Gelly-example. I have reported the problem in Stackoverflow, and this is the link (https://stackoverflow.com/questions/63211746/error-with-flink-gelly-lastjob executionresult-is-null-for-executionenvironment)

回复: [jira] [Created] (FLINK-36768) Empty Checkpoint Directory created when older checkpoint fails due to timeout and the checkpoint interval is same

Hi Thomas, thank you for reporting this. From your description, I am not sure which chk- is not properly deleted. Could you provide a more concrete example for your condition. For example, chk-1 trigger -> chk-1 timeout -> chk-2 trigger, chk-xxx cp directory is not cleaned. BTW, 1.12.1 is a old