From: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: WAL replay failure after file truncation(?) |
Date: | 2005-05-26 01:38:34 |
Message-ID: | 4295289A.5000504@familyhealth.com.au |
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Lists: | pgsql-hackers |
> Plan B is for WAL replay to always be willing to extend the file to
> whatever record number is mentioned in the log, even though this
> may require inventing the contents of empty pages; we trust that their
> contents won't matter because they'll be truncated again later in the
> replay sequence. This seems pretty messy though, especially for
> indexes. The major objection to it is that it gives up error detection
> in real filesystem-corruption cases: we'll just silently build an
> invalid index and then try to run with it. (Still, that might be better
> than refusing to start; at least you can REINDEX afterwards.)
You could at least log some sort of warning during the PITR process.
Anyone running a PITR not paying attention to their logs is in trouble
anyway...
Chris
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