> "Stuck?"  You have not shown us a case where SIGTERM rather than SIGINT
> is necessary or appropriate.  It seems to me the above is assuming the
> existence of unknown backend bugs, exactly the same thing you think
> I shouldn't be assuming ...

I do know a case where a plain kill will seem to be stucked: on vacuum
of a big table. I guess when it starts an index's cleanup scan it will
insist to finish it before stopping. I'm not sure if that's the cause,
but I have seen delays of 30 minutes for killing a vacuum... it's true
that finally it always did die... but it's also true that I have 'kill
-9'-ed it before because I thought it's stucked.


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