Re: Some 9.5beta2 backend processes not terminating properly?

>
> Could you describe the worklad a bit more? Is this rather concurrent? Do
> you use optimized or debug builds? How long did you wait for the
> backends to die? Is this all over localhost, external ip but local,
> remotely?
>

The workload is a a rather diverse set of integration tests executed with
Npgsql. There's no concurrency whatsoever - tests are executed serially.
The backends stay alive indefinitely, until they are killed. All this is
over localhost with TCP. I can try other scenarios if that'll help.

> > Note that the number of backends that stay stuck after the tests is
> > constant (always 12).
>
> Can you increase the number of backends used in the test? And check
> whether it's still 12?
>

Well, I ran the testsuite twice in parallel, and got... 23 backends stuck
at the end.

> How are your clients disconnecting? Possibly without properly
> disconnecting?
>

That's possible, definitely in some of the test cases.

What I can do is try to isolate things further by playing around with the
tests and trying to see if a more minimal repro can be done - I'll try
doing this later today or tomorrow. If anyone has any other specific tests
or checks I should do let me know.