openstack/neutron-lbaas
Code Issues Proposed changes

Merge "Remove SELECT FOR UPDATE use in ML2 type driver release_segment"

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This commit is contained in:
Jenkins 2014-07-03 08:28:25 +00:00 committed by Gerrit Code Review
commit 74daab5de3
4 changed files with 64 additions and 69 deletions
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20
neutron/plugins/ml2/drivers/type_flat.py
View File

@ -119,14 +119,12 @@ class FlatTypeDriver(api.TypeDriver):
def release_segment(self, session, segment):
physical_network = segment[api.PHYSICAL_NETWORK]
with session.begin(subtransactions=True):
try:
alloc = (session.query(FlatAllocation).
filter_by(physical_network=physical_network).
with_lockmode('update').
one())
session.delete(alloc)
LOG.debug(_("Releasing flat network on physical "
"network %s"), physical_network)
except sa.orm.exc.NoResultFound:
LOG.warning(_("No flat network found on physical network %s"),
physical_network)
count = (session.query(FlatAllocation).
filter_by(physical_network=physical_network).
delete())
if count:
LOG.debug("Releasing flat network on physical network %s",
physical_network)
else:
LOG.warning(_("No flat network found on physical network %s"),
physical_network)

32
neutron/plugins/ml2/drivers/type_gre.py
View File

@ -108,24 +108,22 @@ class GreTypeDriver(type_tunnel.TunnelTypeDriver):
def release_segment(self, session, segment):
gre_id = segment[api.SEGMENTATION_ID]
inside = any(lo <= gre_id <= hi for lo, hi in self.gre_id_ranges)
with session.begin(subtransactions=True):
try:
alloc = (session.query(GreAllocation).
filter_by(gre_id=gre_id).
with_lockmode('update').
one())
alloc.allocated = False
for lo, hi in self.gre_id_ranges:
if lo <= gre_id <= hi:
LOG.debug(_("Releasing gre tunnel %s to pool"),
gre_id)
break
else:
session.delete(alloc)
LOG.debug(_("Releasing gre tunnel %s outside pool"),
gre_id)
except sa_exc.NoResultFound:
LOG.warning(_("gre_id %s not found"), gre_id)
query = session.query(GreAllocation).filter_by(gre_id=gre_id)
if inside:
count = query.update({"allocated": False})
if count:
LOG.debug("Releasing gre tunnel %s to pool", gre_id)
else:
count = query.delete()
if count:
LOG.debug("Releasing gre tunnel %s outside pool", gre_id)
if not count:
LOG.warning(_("gre_id %s not found"), gre_id)
def _sync_gre_allocations(self):
"""Synchronize gre_allocations table with configured tunnel ranges."""

48
neutron/plugins/ml2/drivers/type_vlan.py
View File

@ -235,33 +235,31 @@ class VlanTypeDriver(api.TypeDriver):
def release_segment(self, session, segment):
physical_network = segment[api.PHYSICAL_NETWORK]
vlan_id = segment[api.SEGMENTATION_ID]
ranges = self.network_vlan_ranges.get(physical_network, [])
inside = any(lo <= vlan_id <= hi for lo, hi in ranges)
with session.begin(subtransactions=True):
try:
alloc = (session.query(VlanAllocation).
filter_by(physical_network=physical_network,
vlan_id=vlan_id).
with_lockmode('update').
one())
alloc.allocated = False
inside = False
for vlan_min, vlan_max in self.network_vlan_ranges.get(
physical_network, []):
if vlan_min <= vlan_id <= vlan_max:
inside = True
break
if not inside:
session.delete(alloc)
LOG.debug(_("Releasing vlan %(vlan_id)s on physical "
"network %(physical_network)s outside pool"),
query = (session.query(VlanAllocation).
filter_by(physical_network=physical_network,
vlan_id=vlan_id))
if inside:
count = query.update({"allocated": False})
if count:
LOG.debug("Releasing vlan %(vlan_id)s on physical "
"network %(physical_network)s to pool",
{'vlan_id': vlan_id,
'physical_network': physical_network})
else:
LOG.debug(_("Releasing vlan %(vlan_id)s on physical "
"network %(physical_network)s to pool"),
else:
count = query.delete()
if count:
LOG.debug("Releasing vlan %(vlan_id)s on physical "
"network %(physical_network)s outside pool",
{'vlan_id': vlan_id,
'physical_network': physical_network})
except sa.orm.exc.NoResultFound:
LOG.warning(_("No vlan_id %(vlan_id)s found on physical "
"network %(physical_network)s"),
{'vlan_id': vlan_id,
'physical_network': physical_network})
if not count:
LOG.warning(_("No vlan_id %(vlan_id)s found on physical "
"network %(physical_network)s"),
{'vlan_id': vlan_id,
'physical_network': physical_network})

33
neutron/plugins/ml2/drivers/type_vxlan.py
View File

@ -116,24 +116,25 @@ class VxlanTypeDriver(type_tunnel.TunnelTypeDriver):
def release_segment(self, session, segment):
vxlan_vni = segment[api.SEGMENTATION_ID]
inside = any(lo <= vxlan_vni <= hi for lo, hi in self.vxlan_vni_ranges)
with session.begin(subtransactions=True):
try:
alloc = (session.query(VxlanAllocation).
filter_by(vxlan_vni=vxlan_vni).
with_lockmode('update').
one())
alloc.allocated = False
for low, high in self.vxlan_vni_ranges:
if low <= vxlan_vni <= high:
LOG.debug(_("Releasing vxlan tunnel %s to pool"),
vxlan_vni)
break
else:
session.delete(alloc)
LOG.debug(_("Releasing vxlan tunnel %s outside pool"),
query = (session.query(VxlanAllocation).
filter_by(vxlan_vni=vxlan_vni))
if inside:
count = query.update({"allocated": False})
if count:
LOG.debug("Releasing vxlan tunnel %s to pool",
vxlan_vni)
except sa_exc.NoResultFound:
LOG.warning(_("vxlan_vni %s not found"), vxlan_vni)
else:
count = query.delete()
if count:
LOG.debug("Releasing vxlan tunnel %s outside pool",
vxlan_vni)
if not count:
LOG.warning(_("vxlan_vni %s not found"), vxlan_vni)
def _sync_vxlan_allocations(self):
"""