[ZEPPELIN] Deadlocks cause by Notebooks, how to check which process id/ user id caused the deadlock?

[#1]

Hello All,

I have seen some deadlocks everytime our Zeppelin hung/inaccessible. Based on the jstack result, there is 1 deadlock found, now I am trying to find the culprit from the details on the jstack and the zeppelin logs but I cannot matched anything with these details.