lgcareer commented on issue #2421: workflow lineage URL: https://github.com/apache/incubator-dolphinscheduler/pull/2421#issuecomment-615025136 Thanks!! I changed the db,used mysql db,it can work.I made a cyclic dependency then it occured StackOverflowError. Such as the follow steps. 1.process definiton A depend on process definition B. 2.process definiton B depend on process definition C. 3.process definiton C depend on process definition A. Then it will occur StackOverflowError. 
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