[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, SubjectRelation, RelationType
class Tag(EntityType):
"""tags are used by users to mark entities.
When you include the Tag entity, all application specific entities
may then be tagged using the "tags" relation.
"""
name = String(required=True, fulltextindexed=True, unique=True,
maxsize=128)
# when using this component, add the Tag tag X relation for each type that
# should be taggeable
tags = SubjectRelation('Tag', description="tagged objects")
class tags(RelationType):
"""indicates that an entity is classified by a given tag"""