On 12/05/2014 02:41 PM, Jim Nasby wrote:
> Perhaps we should also officially recommend production servers be setup
> to create core files. AFAIK the only downside is the time it would take
> to write a core that's huge because of shared buffers, but perhaps
> there's some way to avoid writing those? (That means the core won't help
> if the bug is due to something in a buffer, but that seems unlikely
> enough that the tradeoff is worth it...)

Not practical in a lot of cases.  For example, this user was unwilling
to enable core dumps on the production replicas because writing out the
16GB of shared buffers they had took over 10 minutes in a test.

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


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