Thomas Kellerer schrieb am 19.01.2018 um 17:48:
> I wonder what performance implications that has on a server with
> around 50-100 active connections (through pgBouncer).
> My understanding of the documentation is, that Postgres will work
> just fine if we lower the limit, it simply releases the cached file
> handles if the limit is reached. But I have no idea how expensive
> opening a file handle is in Linux.
> So assuming the sessions (and thus the queries) actually do need that
> many file handles, what kind of performance impact (if any) is to be
> expected by lowering that value for Postgres to e.g. 500?

I would be really interested in an answer. 

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