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page is uninitialized --- fixing - Mailing list pgsql-general

From Brad Nicholson
Subject page is uninitialized --- fixing
Date
Msg-id 1206559194.26138.33.camel@bnicholson-desktop
Whole thread Raw
Responses Re: page is uninitialized --- fixing  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: page is uninitialized --- fixing  (Alvaro Herrera <alvherre@commandprompt.com>)
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We just took a test database down (PG 8.1.11) fairly hard (pulled a SAN
switch out while it was under load), which caused the DB to crash.  It
started up fine, when I vacuumed the DB, I saw the following messages.

WARNING:  relation "my_table" page 652139 is uninitialized --- fixing
WARNING:  relation "my_table" page 652140 is uninitialized --- fixing
WARNING:  relation "my_table" page 652940 is uninitialized --- fixing
WARNING:  relation "my_table" page 652941 is uninitialized --- fixing

That sort of looks like it could be data loss, can someone explain what
happened?

Brad.

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