Re: Fwd: index corruption in PG 8.3.13

On Fri, Mar 11, 2011 at 2:28 PM, Nikhil Sontakke
<nikhil.sontakke@enterprisedb.com> wrote:
>> I'm not sure, but I doubt it.  If the VACUUM FULL committed, then the
>> WAL records should be on disk, but if the immediate shutdown happened
>> while it was still running, then the WAL records might still be in
>> wal_buffers, in which case I don't think they'll get written out and
>> thus zero pages in the index are to be expected.
>>...
>
> Oh yeah, so if VF committed, the xlog should have been ok too, but
> can't say the same about the shared buffers.

But there was a later block that *was* written out. What was the LSN
on that block? everything in the WAL log should have been fsynced up
to that point when that buffer was flushed.

Was there a machine restart in the picture as well?



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greg