[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.
# -*- coding: utf-8 -*-
# copyright 2013 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr -- mailto:contact@logilab.fr
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
"""cubicweb-forum schema"""
from yams.buildobjs import (String, RichString, EntityType,
RelationDefinition, SubjectRelation)
from yams.reader import context
class Forum(EntityType):
topic = String(maxsize=50, required=True, unique=True)
description = RichString()
class ForumThread(EntityType):
__permissions__ = {
'read': ('managers', 'users'),
'add': ('managers', 'users'),
'update': ('managers', 'owners'),
'delete': ('managers', 'owners')
}
title = String(required=True, fulltextindexed=True, maxsize=256)
content = RichString(required=True, fulltextindexed=True)
in_forum = SubjectRelation('Forum', cardinality='1*', inlined=True,
composite='object')
class interested_in(RelationDefinition):
subject = 'CWUser'
object = ('ForumThread', 'Forum')
class nosy_list(RelationDefinition):
subject = ('Forum', 'ForumThread')
object = 'CWUser'