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From: Tom Lane <[email protected]>
To: Andres Freund <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Cc: [email protected]
Subject: Re: ssl tests aren't concurrency safe due to get_free_port()
Date: Tue, 22 Nov 2022 20:36:06 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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Andres Freund <[email protected]> writes:
> While looking into a weird buildfarm failure ([1]), I noticed this:

> # Checking port 62707
> Use of uninitialized value $pid in scalar chomp at /mnt/resource/bf/build/grassquit/REL_11_STABLE/pgsql.build/../pgsql/src/test/perl/PostgresNode.pm line 1247.
> Use of uninitialized value $pid in addition (+) at /mnt/resource/bf/build/grassquit/REL_11_STABLE/pgsql.build/../pgsql/src/test/perl/PostgresNode.pm line 1248.

Yeah, my animals are showing that too.

> Not quite sure how $pid ends up uninitialized, given the code:
> 	# see if someone else has or had a reservation of this port
> 	my $pid = <$portfile>;
> 	chomp $pid;
> 	if ($pid +0 > 0)

I guess the <$portfile> might return undef if the file is empty?

			regards, tom lane





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