Re: "ERROR: could not read block 6 ...: read only 0 of 8192 bytes" after autovacuum cancelled

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: "ERROR: could not read block 6 ...: read only 0 of 8192 bytes" after autovacuum cancelled
Date: 2009-11-07 00:54:23
Message-ID: 11679.1257555263@sss.pgh.pa.us
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Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
>> Looks OK, but please update the comment right before the
>> RecordTransactionCommit, along the lines of "We prevent cancel
>> interrupts after this point to mitigate the problem that you
>> can't abort the transaction now".

> BTW I'm thinking in backpatching this all the way back to 7.4 -- are
> we agreed on that?

Yeah, I would think the problems can manifest all the way back.

regards, tom lane

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