On 3/28/16 11:03 AM, Magnus Hagander wrote:

That should work yeah. And given that we already use that check in other
places, it seems it should be perfectly safe. And as long as we only do
a WARNING and not abort if the fsync fails, we should be OK if people
intentionally store their backups on an fs that doesn't speak fsync (if
that exists), in which case I don't really think we even need a switch
to turn it off.

I'd even go so far as spitting out a warning any time we can't fsync (maybe that's what you're suggesting?)
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com

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