7b5f6fd6ae
This adds the use of eventlet's db_pool module so that we can make mysql calls without blocking the whole process. New config options are introduced: sql_dbpool_enable -- Enables the use of eventlet's db_pool sql_min_pool_size -- Set the minimum number of SQL connections sql_max_pool_size -- Set the maximum number of SQL connections sql_idle_timeout -- Timeout before idle sql connections are reaped The default for sql_dbpool_enable is False for now, so there is no forced behavior changes for those using mysql. sql_min_pool_size is defaulted to 1 to match behavior if not using db_pool. Fixes bug 1086173 Change-Id: Ied0aae33211585743fe955028a75c4e192a15d2f
127 lines
3.8 KiB
Python
127 lines
3.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2012 NEC Corporation. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# @author: Ryota MIBU
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import sqlalchemy as sa
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from quantum.db import api as db
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from quantum.db import model_base
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from quantum.openstack.common import log as logging
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from quantum.plugins.nec.common import config
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from quantum.plugins.nec.common import exceptions as nexc
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from quantum.plugins.nec.db import models as nmodels
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LOG = logging.getLogger(__name__)
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OFP_VLAN_NONE = 0xffff
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def initialize():
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options = {"sql_connection": "%s" % config.DATABASE.sql_connection,
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"sql_max_retries": config.DATABASE.sql_max_retries,
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"reconnect_interval": config.DATABASE.reconnect_interval,
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"base": model_base.BASEV2,
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"sql_min_pool_size": config.CONF.DATABASE.sql_min_pool_size,
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"sql_max_pool_size": config.CONF.DATABASE.sql_max_pool_size,
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"sql_idle_timeout": config.CONF.DATABASE.sql_idle_timeout,
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"sql_dbpool_enable": config.CONF.DATABASE.sql_dbpool_enable}
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db.configure_db(options)
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def clear_db(base=model_base.BASEV2):
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db.clear_db(base)
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def get_ofc_item(model, id):
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session = db.get_session()
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try:
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return (session.query(model).
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filter_by(id=id).
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one())
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except sa.orm.exc.NoResultFound:
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return None
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def find_ofc_item(model, quantum_id):
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session = db.get_session()
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try:
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return (session.query(model).
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filter_by(quantum_id=quantum_id).
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one())
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except sa.orm.exc.NoResultFound:
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return None
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def add_ofc_item(model, id, quantum_id):
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session = db.get_session()
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try:
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item = model(id=id, quantum_id=quantum_id)
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session.add(item)
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session.flush()
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except Exception as exc:
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LOG.exception(exc)
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raise nexc.NECDBException
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return item
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def del_ofc_item(model, id):
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session = db.get_session()
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try:
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item = (session.query(model).
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filter_by(id=id).
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one())
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session.delete(item)
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session.flush()
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except sa.orm.exc.NoResultFound:
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LOG.warning("_del_ofc_item(): NotFound item "
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"(model=%s, id=%s) " % (model, id))
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def get_portinfo(id):
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session = db.get_session()
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try:
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return (session.query(nmodels.PortInfo).
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filter_by(id=id).
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one())
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except sa.orm.exc.NoResultFound:
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return None
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def add_portinfo(id, datapath_id='', port_no=0, vlan_id=OFP_VLAN_NONE, mac=''):
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session = db.get_session()
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try:
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portinfo = nmodels.PortInfo(id=id, datapath_id=datapath_id,
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port_no=port_no, vlan_id=vlan_id, mac=mac)
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session.add(portinfo)
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session.flush()
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except Exception as exc:
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LOG.exception(exc)
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raise nexc.NECDBException
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return portinfo
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def del_portinfo(id):
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session = db.get_session()
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try:
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portinfo = (session.query(nmodels.PortInfo).
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filter_by(id=id).
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one())
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session.delete(portinfo)
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session.flush()
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except sa.orm.exc.NoResultFound:
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LOG.warning("del_portinfo(): NotFound portinfo for "
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"port_id: %s" % id)
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