On 27 November 2015 at 19:17, Tomas Vondra <tomas.von...@2ndquadrant.com>
wrote:


> It's also possible to mitigate this by setting wal_sync_method=fsync


Are you sure?

https://lwn.net/Articles/322823/ tends to suggest that fsync() on the file
is insufficient to ensure rename() is persistent, though it's somewhat old.

-- 
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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