Github user astroshim commented on the issue:
https://github.com/apache/zeppelin/pull/1985
@FireArrow I think it seems not can be possible to know if impersonation
mode or not in Interpreter side(I couldn't find it) and checking `cancel`
paragraph for impersonation is also not good idea (Interpreter sever can be
launched itself not the same system with ZeppelinServer)
So I think that the canceling job can run only by user who launched
interpreter process can be one option. and In this way, the other user can't
stop the job in shared mode.
What do you think?
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