On Thu, Aug 25, 2016 at 3:21 PM, Alvaro Herrera
<alvhe...@2ndquadrant.com> wrote:
> Yeah, and it's also related to the point Josh Berkus was making about
> clusters with little activity.


> Does it work to set the minimum to one WAL segment, i.e. 64MB?  guc.c
> has a hardcoded minimum of 2, but I couldn't find an explanation for it.

Well, I think that when you overrun the end of one segment, you're
never going to be able to wrap around to the start of the same
segment; you're going to get sucked into needing another file.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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