Re: Hot standby 9.2.6 -> 9.2.6 PANIC: WAL contains references to invalid pages

On Thu, Dec 19, 2013 at 2:37 PM, Sergey Konoplev <gray(dot)ru(at)gmail(dot)com> wrote:
> Yesterday I upgraded both master and replica servers to 9.2.6,
> performed SET vacuum_freeze_table_age = 0; VACUUM; and then rebuild
> the replica from scratch.
>
> 2013-12-19 20:51:22 MSK 19938 @ from [vxid:1/0 txid:0] [] WARNING:
> page 14833 of relation base/16436/3321003988 is uninitialized
> 2013-12-19 20:51:22 MSK 19938 @ from [vxid:1/0 txid:0] [] CONTEXT:
> xlog redo vacuum: rel 1663/16436/3321003988; blk 38538,
> lastBlockVacuumed 0
> 2013-12-19 20:51:22 MSK 19938 @ from [vxid:1/0 txid:0] [] PANIC: WAL
> contains references to invalid pages
> 2013-12-19 20:51:22 MSK 19938 @ from [vxid:1/0 txid:0] [] CONTEXT:
> xlog redo vacuum: rel 1663/16436/3321003988; blk 38538,
> lastBlockVacuumed 0

FYI

Today we noticed that the PANIC happens on the same relation with the
same block and page. This is an index, created on Dec 10 with its
daily partition that was before I upgraded Postgres from 9.2.4 to
9.2.6. So probably it was a kind of aftermath of the pre-9.2.6
problems.

I have done reindex of this particular index on production, but I
still have the buggy copy of the cluster in case if someone would like
to dig the problem deeper.

Will keep you informed.

--
Kind regards,
Sergey Konoplev
PostgreSQL Consultant and DBA

http://www.linkedin.com/in/grayhemp
+1 (415) 867-9984, +7 (901) 903-0499, +7 (988) 888-1979
gray(dot)ru(at)gmail(dot)com