Re: WAL Bypass for indexes

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От Christopher Kings-Lynne
Тема Re: WAL Bypass for indexes
Дата
Msg-id 44307DCC.3050508@calorieking.com
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Ответ на Re: WAL Bypass for indexes  (Tom Lane <tgl@sss.pgh.pa.us>)
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> Martin's proposal at least looks sensible; he just hasn't quite made the
> case that it's worth doing.  If you're running a system that hardly ever
> crashes, you might be willing to accept index rebuilds during crash
> recovery, especially for indexes on relatively small, but frequently
> updated, tables (which should have reasonably short rebuild times).
> Obviously this would have to be configurable per-index, or at least
> per-table, and I agree that it likely would never be the default.
> But it could be a good tradeoff for some cases.


My web system hasn't crashed in years, and last time I upgraded the 
index rebuild time was maybe 30 mins?  So, I think a typical web 
application doesn't _really_ have that much data, and would greatly 
benefit from cranking the TPS.

Chris



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