[server] Make connection pooler configurable and set better default values
Drop the configuration connections-pool-size and add new configurations options:
* connections-pool-min-size. Set to 0 by default so we open connections only
when needed. This avoid opening min-size*processes connections at startup,
which is, it think, a good default.
* connections-pool-max-size. Set to 0 (unlimited) by default, so we move the
bottleneck to postgresql.
* connections-idle-timeout. Set to 10 minutes. I don't have arguments about
this except that this is the default in pgbouncer.
# copyright 2017 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# copyright 2014-2016 UNLISH S.A.S. (Montpellier, FRANCE), all rights reserved.
#
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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# This file is part of CubicWeb.
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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""" Defaults for a classical CubicWeb instance. """
def includeme(config):
""" Enable the defaults that make the application behave like a classical
CubicWeb instance.
The following modules get included:
- :func:`cubicweb.pyramid.session <cubicweb.pyramid.session.includeme>`
- :func:`cubicweb.pyramid.auth <cubicweb.pyramid.auth.includeme>`
- :func:`cubicweb.pyramid.login <cubicweb.pyramid.login.includeme>`
It is automatically included by the configuration system, unless the
following entry is added to the :ref:`pyramid_settings`:
.. code-block:: ini
cubicweb.defaults = no
"""
config.include('cubicweb.pyramid.session')
config.include('cubicweb.pyramid.auth')
config.include('cubicweb.pyramid.login')