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Re: FATAL: index contains unexpected zero page at block

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Dmitriy Tyugaev <dtyugaev@xxxxxxxxx> writes:
> Nov 14 18:24:04 uno postgres84[24208]: [6-1] user=,db= LOG:  redo done at
> 237B/90A1DF98
> Nov 14 18:24:04 uno postgres84[24208]: [7-1] user=,db= LOG:  last completed
> transaction was at log time 2012-11-10 10:26:28.484922+04
> Nov 14 18:24:04 uno postgres84[24208]: [8-1] user=,db= FATAL:  index
> "316879235" contains unexpected zero page at block 264
> Nov 14 18:24:04 uno postgres84[24208]: [8-2] user=,db= HINT:  Please
> REINDEX it.

Hm.  Apparently it's hitting the zero page while trying to clean up an
incomplete index page split after reaching the end of WAL.  This is not
good --- it means your filesystem failed to retain data that it claimed
had been written to disk safely.  You should look into fsync-related
system settings after you get out of the immediate problem.

As far as getting out of the immediate problem is concerned, I think
you have little option except to use pg_resetxlog.  This will mean
the loss of whatever actions it was trying to replay, which may well
mean that you end up with data corruption (not just index corruption).
I'd suggest a dump and reload after you get the server to start.

			regards, tom lane


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