Horton

Re: regression, deadlock in high frequency single-row UPDATE

Andrew Sackville-West <awest@janrain.com>

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From: Andrew Sackville-West <awest@janrain.com>
To: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: hubert depesz lubaczewski <depesz@gmail.com>, Mark Kirkwood <mark.kirkwood@catalyst.net.nz>, pgsql-bugs@postgresql.org, Paulo Tanimoto <paulo@janrain.com>
Date: 2014-12-09T17:38:33Z
Lists: pgsql-bugs 
On Tue, Dec 9, 2014 at 6:14 AM, Alvaro Herrera <alvherre@2ndquadrant.com>
wrote:

> hubert depesz lubaczewski wrote:
> > For whatever it's worth, I was able to bisect the problem to this commit:
> >
> > commit
> > 0ac5ad5134f2769ccbaefec73844f8504c4d6182
> >
> > Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
> >
> > Date:   Wed Jan 23 12:04:59 2013 -0300
> >
> >     Improve concurrency of foreign key locking
>
> I'm not surprised in the least, TBH.
>
>
Thanks for your attention to this. Is there anything we're doing wrong that
could improve this in current 9.3 versions?

A


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> Álvaro Herrera                http://www.2ndQuadrant.com/
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Commits

  1. Add isolationtester spec for old heapam.c bug

  2. Improve concurrency of foreign key locking