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From: Tom Lane <[email protected]>
To: Tomas Vondra <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: subscriptionCheck failures on nightjar
Date: Mon, 26 Aug 2019 11:01:20 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <20190826132904.3ayuw36qzl2c4ktr@development>
References: <[email protected]>
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	<20190826132904.3ayuw36qzl2c4ktr@development>

Tomas Vondra <[email protected]> writes:
> I'm willing to take a stab at it, but to do that I need a way to
> reproduce it. Tom, you mentioned you've managed to reproduce it in a
> qemu instance, but that it took some fiddling with qemu parmeters or
> something. Can you share what exactly was necessary?

I don't recall exactly what I did anymore, and it was pretty fiddly
anyway.  Upthread I suggested

>> Now that we know where the problem is, you could probably make it highly
>> reproducible by inserting a sleep of a few msec between the rename and the
>> second fsync.

so why not try that first?

			regards, tom lane





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