| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> |
| Cc: | stark(at)mit(dot)edu, aidan(at)highrise(dot)ca, pgsql-hackers(at)postgresql(dot)org, Andres Freund <andres(at)anarazel(dot)de> |
| Subject: | Re: 16-bit page checksums for 9.2 |
| Date: | 2011-12-28 02:54:02 |
| Message-ID: | CA+U5nM+WUMu5FvuyK+hPGoxdgMq4xRqd5tFW-qBaDYNt2b8A=Q@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sun, Dec 25, 2011 at 1:01 PM, Kevin Grittner
<Kevin(dot)Grittner(at)wicourts(dot)gov> wrote:
> This chicken-and-egg
> problem requires the checksum to be implemented first.
v2 of checksum patch, using a conditional copy if checksumming is
enabled, so locking is removed.
Thanks to Andres for thwacking me with the cluestick, though I have
used a simple copy rather than a copy & calc.
Tested using make installcheck with parameter on/off, then restart and
vacuumdb to validate all pages.
Reviews, objections, user interface tweaks all welcome.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
| Attachment | Content-Type | Size |
|---|---|---|
| checksum16.v2.patch | text/x-patch | 25.5 KB |
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