Re: Block-level CRC checks - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Block-level CRC checks
Date
Msg-id 200912011258.nB1Cw8F02488@momjian.us
Whole thread Raw
In response to Block-level CRC checks  (Alvaro Herrera <alvherre@commandprompt.com>)
Responses Re: Block-level CRC checks  (Simon Riggs <simon@2ndQuadrant.com>)
List pgsql-hackers
bruce wrote:
> What might be interesting is to report CRC mismatches if the database
> was shut down cleanly previously;  I think in those cases we shouldn't
> have torn pages.

Sorry, stupid idea on my part.  We don't WAL log hit bit changes so
there is no guarantee the page is in WAL on recovery.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + If your life is a hard drive, Christ can be your backup. +


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