lamber-ken commented on issue #10228: [FLINK-14816] Add thread dump feature for taskmanager URL: https://github.com/apache/flink/pull/10228#issuecomment-554885271 > I'm not sure whether or not it is a desirable feature to implement. Could you share the user case a bit? @lamber-ken It's hard to get the thread dump of tm when job is hanging, because flink tasks are deployed on yarn cluster. For example, when fixing the deadlock of elasticserch-connector, it needs to jump to the tm machine to dump the jstack. see [elasticsearch-connector-deadlock](https://github.com/elastic/elasticsearch/pull/48013).
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