[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.
from yams.buildobjs import EntityType, String, RichString, SubjectRelation
from cubicweb.schema import WorkflowableEntityType, ERQLExpression
class Blog(EntityType):
title = String(maxsize=50, required=True)
description = RichString()
rss_url = String(maxsize=128, description=(
'blog\'s rss url (useful for when using external site such as feedburner)'))
class BlogEntry(WorkflowableEntityType):
__permissions__ = {
'read': ('managers', 'users', ERQLExpression('X in_state S, S name "published"'),),
'add': ('managers', 'users'),
'update': ('managers', 'owners'),
'delete': ('managers', 'owners')
}
title = String(required=True, fulltextindexed=True, maxsize=256)
content = RichString(required=True, fulltextindexed=True)
entry_of = SubjectRelation('Blog')
same_as = SubjectRelation('ExternalUri')