Description of configuration options for db

Configuration option=Default value	Description
sql_connection=sqlite:///glance.sqlite	(StrOpt) A valid SQLAlchemy connection string for the registry database. Default: %(default)s
sql_idle_timeout=3600	(IntOpt) Period in seconds after which SQLAlchemy should reestablish its connection to the database.
sql_max_retries=60	(IntOpt) The number of times to retry a connection to the SQLserver.
sql_retry_interval=1	(IntOpt) The amount of time to wait (in seconds) before attempting to retry the SQL connection.
sqlalchemy_debug=False	(BoolOpt) Enable debug logging in sqlalchemy which prints every query and result