Re: Btree index left link changed unexpectedly after bringing up 8.3.11 warm standby

Excerpts from Mark Kirkwood's message of jue oct 28 02:20:56 -0300 2010:
> I'm seeing this on a Pitrtools managed warm standby box that we
> periodically bring the db fully up on in order to test if the standby is
> good.
>
> After the standby is up, then a db wide VACUUM produces:
>
> 2010-10-28 17:20:51 NZDT WARNING: relation "node" page 248500 is
> uninitialized --- fixing
> 2010-10-28 17:20:51 NZDT WARNING: relation "node" page 248502 is
> uninitialized --- fixing
> 2010-10-28 17:20:51 NZDT WARNING: relation "node" page 248504 is
> uninitialized --- fixing
> 2010-10-28 17:20:54 NZDT ERROR: left link changed unexpectedly in block
> 21042 of index "content_node_node_type_id_inserted_idx"
>
> I'm guessing the index error is due to the uninitialized table pages
> (the index "content_node_node_type_id_inserted_idx" is on the "node"
> table).

Not necessarily ... You still have the index in that state, right?
We could try some diagnostics on it.

> Are the uninitialized pages cause for concern, or merely an artifact
> of log shipping?

These *should* be innocuous.

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Álvaro Herrera <alvherre(at)commandprompt(dot)com>
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