Re: Freezing without write I/O

From: Greg Stark <stark(at)mit(dot)edu>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andres Freund <andres(at)2ndquadrant(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Freezing without write I/O
Date: 2013-06-06 12:16:14
Message-ID: CAM-w4HPpRbcJeNrcAVPrGNUTwwSDU0kHZy9erroJsLDbhO3rKQ@mail.gmail.com
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On Fri, May 31, 2013 at 3:04 AM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> Even at a more modest 10,000 tps, with default
> settings, you'll do anti-wraparound vacuums of the entire cluster
> about every 8 hours. That's not fun.

I've forgotten now. What happens if you have a long-lived transaction
still alive from > 2B xid ago?

--
greg

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