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Re: silent data loss with ext4 / all current versions - Mailing list pgsql-hackers

From Tomas Vondra
Subject Re: silent data loss with ext4 / all current versions
Date
Msg-id 565E19C0.8040306@2ndquadrant.com
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In response to Re: silent data loss with ext4 / all current versions  (Michael Paquier <michael.paquier@gmail.com>)
Responses Re: silent data loss with ext4 / all current versions  (Michael Paquier <michael.paquier@gmail.com>)
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Attached is v2 of the patch, that

(a) adds explicit fsync on the parent directory after all the rename()
     calls in timeline.c, xlog.c, xlogarchive.c and pgarch.c

(b) adds START/END_CRIT_SECTION around the new fsync_fname calls
     (except for those in timeline.c, as the START/END_CRIT_SECTION is
     not available there)

The patch is fairly trivial and I've done some rudimentary testing, but
I'm sure I haven't exercised all the modified paths.

regards
Tomas

--
Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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