Re: Freezing without write I/O

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От
Josh Berkus
Тема
Re: Freezing without write I/O
Дата
в 17:26:31
Msg-id
51A78BBD.9090103@agliodbs.com
Список
Дерево обсуждения
Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Bruce Momjian <bruce@momjian.us>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Bruce Momjian <bruce@momjian.us>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Greg Stark <stark@mit.edu>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Greg Stark <stark@mit.edu>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Hannu Krosing <hannu@2ndQuadrant.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Hannu Krosing <hannu@2ndQuadrant.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Avoiding bloat in the presence of a long-running transaction (Re: Freezing without write I/O) Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Jeff Davis <pgsql@j-davis.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Alvaro Herrera <alvherre@2ndquadrant.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Jeff Davis <pgsql@j-davis.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Peter Eisentraut <peter_e@gmx.net>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Alvaro Herrera <alvherre@2ndquadrant.com>
Re: Freezing without write I/O Ants Aasma <ants@cybertec.at>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O didier <did447@gmail.com>
Re: Freezing without write I/O didier <did447@gmail.com>
Re: Freezing without write I/O Ants Aasma <ants@cybertec.at>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Ants Aasma <ants@cybertec.at>
Re: Freezing without write I/O Peter Eisentraut <peter_e@gmx.net>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Jeff Janes <jeff.janes@gmail.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Peter Geoghegan <pg@heroku.com>
Re: Freezing without write I/O Andres Freund <andres@2ndquadrant.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Jeff Janes <jeff.janes@gmail.com>
Re: Freezing without write I/O David Fetter <david@fetter.org>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Freezing without write I/O Jeff Janes <jeff.janes@gmail.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Robert Haas <robertmhaas@gmail.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Re: Freezing without write I/O Merlin Moncure <mmoncure@gmail.com>
Re: Freezing without write I/O Heikki Linnakangas <hlinnakangas@vmware.com>
Re: Freezing without write I/O Simon Riggs <simon@2ndQuadrant.com>
Heikki,

This sounds a lot like my idea for 9.3, which didn't go anywhere.
You've worked out the issues I couldn't, I think.

> Another method is
> to store the 32-bit xid values in tuple headers as offsets from the
> per-page 64-bit value, but then you'd always need to have the 64-bit
> value at hand when interpreting the XIDs, even if they're all recent.

Yeah, -1 on the latter, not least because it would require a 100%
rewrite of the tables in order to upgrade.

-- 
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com


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