"Mason Hale" <ma...@onespot.com> writes:
> ISSUE: unable to cancel queries using pg_cancel_backend(), that are in
> send() function call, waiting on client receipt of data.
I think what you are describing is a kernel bug. There's not a lot
we can do about it if the send() call hangs. Considering the kernel
already knows the connection is closed (per the CLOSE_WAIT state shown
by netstat) the send() should return failure immediately, and it's not
doing so.
There might be some TCP-level incompatibility involved between the
database and gateway server TCP stacks, since the combination of the
FIN_WAIT2 and CLOSE_WAIT states really ought not persist very long;
but I'm not a network hacker so I'm a bit out of my depth in diagnosing
that aspect of it.
regards, tom lane
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