[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 2015-2016 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-geonames schema
See geonames readme.txt for more details.
"""
from yams.buildobjs import (EntityType, SubjectRelation,
String, Int, BigInt, Float)
class Location(EntityType):
"""
Entity type for location of Geonames.
See cities1000.zip, cities5000.zip, cities15000.zip and allCountries.txt
"""
name = String(maxsize=1024, indexed=True, fulltextindexed=True)
geonameid = Int(indexed=True)
asciiname = String(maxsize=200, fulltextindexed=True)
alternatenames = String(fulltextindexed=True)
latitude = Float(indexed=True)
longitude = Float(indexed=True)
feature_class = String(maxsize=1, indexed=True)
alternate_country_code = String(maxsize=60)
admin_code_3 = String(maxsize=20)
admin_code_4 = String(maxsize=20)
population = BigInt(indexed=True)
elevation = Int(indexed=True)
gtopo30 = Int(indexed=True)
timezone = SubjectRelation('TimeZone', cardinality='?*', inlined=True)
class TimeZone(EntityType):
"""
Entity type for timezone of geonames.
See timeZones.txt
"""
code = String(maxsize=1024, indexed=True, required=True)
gmt = Float()
dst = Float()
raw_offset = Float()