From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
---|---|
To: | Stephen Frost <sfrost(at)snowman(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: MultiXactId error after upgrade to 9.3.4 |
Date: | 2014-03-31 09:38:41 |
Message-ID: | 20140331093841.GC13135@alap3.anarazel.de |
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Thread: | |
Lists: | pgsql-hackers |
Hi,
On 2014-03-30 00:00:30 -0400, Stephen Frost wrote:
> Greetings,
>
> Looks like we might not be entirely out of the woods yet regarding
> MultiXactId's. After doing an upgrade from 9.2.6 to 9.3.4, we saw the
> following:
>
> ERROR: MultiXactId 6849409 has not been created yet -- apparent wraparound
>
> The table contents can be select'd out and match the pre-upgrade
> backup, but any attempt to VACUUM / VACUUM FULL / CLUSTER fails,
> unsurprisingly.
Without having looked at the code, IIRC this looks like some place
misses passing allow_old=true where it's actually required. Any chance
you can get a backtrace for the error message? I know you said somewhere
below that you'd worked around the problem, but maybe you have a copy of
the database somewhere?
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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