| From: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Florian Pflug <fgp(at)phlo(dot)org>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: bug of recovery? |
| Date: | 2011-10-03 05:23:25 |
| Message-ID: | CAHGQGwGBMUoZ30x80HaROaMuKMSHBA1J4ccYm47+ehhK-u50Rg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Sep 30, 2011 at 3:57 PM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> I think we should issue PANIC if the source is a critical rmgr, or
> just WARNING if from a non-critical rmgr, such as indexes.
>
> Ideally, I think we should have a mechanism to allow indexes to be
> marked corrupt. For example, a file that if present shows that the
> index is corrupt and would be marked not valid. We can then create the
> file and send a sinval message to force the index relcache to be
> rebuilt showing valid set to false.
This seems not to be specific to the invalid-page table problem.
All error cases from a non-critical rmgr should be treated not-PANIC.
So I think that the idea should be implemented separately from
the patch I've posted.
Anyway what if read-only query accesses the index marked invalid?
Just emit ERROR?
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center
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