def _provision_volume(self, context, vol, vsa_id, availability_zone):
if availability_zone is None:
availability_zone = FLAGS.storage_availability_zone
now = utils.utcnow()
options = {
'size': vol['size'],
'user_id': context.user_id,
'project_id': context.project_id,
'snapshot_id': None,
'availability_zone': availability_zone,
'status': "creating",
'attach_status': "detached",
'display_name': vol['name'],
'display_description': vol['description'],
'volume_type_id': vol['volume_type_id'],
'metadata': dict(to_vsa_id=vsa_id),
}
size = vol['size']
host = vol['host']
name = vol['name']
LOG.debug(_("Provision volume %(name)s of size %(size)s GB on "\
"host %(host)s"), locals())
volume_ref = db.volume_create(context.elevated(), options)
driver.cast_to_volume_host(context, vol['host'],
'create_volume', volume_id=volume_ref['id'],
snapshot_id=None)
def _provision_volume(self, context, vol, vsa_id, availability_zone):
if availability_zone is None:
availability_zone = FLAGS.storage_availability_zone
now = utils.utcnow()
options = {
'size': vol['size'],
'user_id': context.user_id,
'project_id': context.project_id,
'snapshot_id': None,
'availability_zone': availability_zone,
'status': "creating",
'attach_status': "detached",
'display_name': vol['name'],
'display_description': vol['description'],
'volume_type_id': vol['volume_type_id'],
'metadata': dict(to_vsa_id=vsa_id),
}
size = vol['size']
host = vol['host']
name = vol['name']
LOG.debug(_("Provision volume %(name)s of size %(size)s GB on "\
"host %(host)s"), locals())
volume_ref = db.volume_create(context.elevated(), options)
driver.cast_to_volume_host(context,
vol['host'],
'create_volume',
volume_id=volume_ref['id'],
snapshot_id=None)
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks a host that is up and has the fewest volumes."""
elevated = context.elevated()
volume_ref = db.volume_get(context, volume_id)
availability_zone = volume_ref.get('availability_zone')
zone, host = None, None
if availability_zone:
zone, _x, host = availability_zone.partition(':')
if host and context.is_admin:
service = db.service_get_by_args(elevated, host, 'engine-volume')
if not self.service_is_up(service):
raise exception.WillNotSchedule(host=host)
driver.cast_to_volume_host(context, host, 'create_volume',
volume_id=volume_id, **_kwargs)
return None
results = db.service_get_all_volume_sorted(elevated)
if zone:
results = [(service, gigs) for (service, gigs) in results
if service['availability_zone'] == zone]
for result in results:
(service, volume_gigabytes) = result
if volume_gigabytes + volume_ref['size'] > FLAGS.max_gigabytes:
msg = _("Not enough allocatable volume gigabytes remaining")
raise exception.NoValidHost(reason=msg)
if self.service_is_up(service):
driver.cast_to_volume_host(context, service['host'],
'create_volume', volume_id=volume_id, **_kwargs)
return None
msg = _("Is the appropriate service running?")
raise exception.NoValidHost(reason=msg)
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks the best host based on requested drive type capability."""
volume_ref = db.volume_get(context, volume_id)
host = self._check_host_enforcement(context,
volume_ref['availability_zone'])
if host:
driver.cast_to_volume_host(context,
host,
'create_volume',
volume_id=volume_id,
**_kwargs)
return None
volume_type_id = volume_ref['volume_type_id']
if volume_type_id:
volume_type = volume_types.get_volume_type(context, volume_type_id)
if volume_type_id is None or\
volume_types.is_vsa_volume(volume_type_id, volume_type):
LOG.debug(_("Non-VSA volume %d"), volume_ref['id'])
return super(VsaScheduler,
self).schedule_create_volume(context, volume_id,
*_args, **_kwargs)
self._print_capabilities_info()
drive_type = {
'name': volume_type['extra_specs'].get('drive_name'),
'type': volume_type['extra_specs'].get('drive_type'),
'size': int(volume_type['extra_specs'].get('drive_size')),
'rpm': volume_type['extra_specs'].get('drive_rpm'),
}
LOG.debug(_("Spawning volume %(volume_id)s with drive type "\
"%(drive_type)s"), locals())
request_spec = {'size': volume_ref['size'], 'drive_type': drive_type}
hosts = self._filter_hosts("volume", request_spec)
try:
(host, qos_cap) = self._select_hosts(request_spec, all_hosts=hosts)
except Exception:
LOG.exception(_("Error creating volume"))
if volume_ref['to_vsa_id']:
db.vsa_update(context, volume_ref['to_vsa_id'],
dict(status=VsaState.FAILED))
raise
if host:
driver.cast_to_volume_host(context,
host,
'create_volume',
volume_id=volume_id,
**_kwargs)
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks the best host based on requested drive type capability."""
volume_ref = db.volume_get(context, volume_id)
host = self._check_host_enforcement(context,
volume_ref['availability_zone'])
if host:
driver.cast_to_volume_host(context, host, 'create_volume',
volume_id=volume_id, **_kwargs)
return None
volume_type_id = volume_ref['volume_type_id']
if volume_type_id:
volume_type = volume_types.get_volume_type(context, volume_type_id)
if volume_type_id is None or\
volume_types.is_vsa_volume(volume_type_id, volume_type):
LOG.debug(_("Non-VSA volume %d"), volume_ref['id'])
return super(VsaScheduler, self).schedule_create_volume(context,
volume_id, *_args, **_kwargs)
self._print_capabilities_info()
drive_type = {
'name': volume_type['extra_specs'].get('drive_name'),
'type': volume_type['extra_specs'].get('drive_type'),
'size': int(volume_type['extra_specs'].get('drive_size')),
'rpm': volume_type['extra_specs'].get('drive_rpm'),
}
LOG.debug(_("Spawning volume %(volume_id)s with drive type "\
"%(drive_type)s"), locals())
request_spec = {'size': volume_ref['size'],
'drive_type': drive_type}
hosts = self._filter_hosts("volume", request_spec)
try:
(host, qos_cap) = self._select_hosts(request_spec, all_hosts=hosts)
except Exception:
LOG.exception(_("Error creating volume"))
if volume_ref['to_vsa_id']:
db.vsa_update(context, volume_ref['to_vsa_id'],
dict(status=VsaState.FAILED))
raise
if host:
driver.cast_to_volume_host(context, host, 'create_volume',
volume_id=volume_id, **_kwargs)
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks a host that is up and has the fewest volumes."""
elevated = context.elevated()
volume_ref = db.volume_get(context, volume_id)
availability_zone = volume_ref.get('availability_zone')
zone, host = None, None
if availability_zone:
zone, _x, host = availability_zone.partition(':')
if host and context.is_admin:
service = db.service_get_by_args(elevated, host, 'engine-volume')
if not self.service_is_up(service):
raise exception.WillNotSchedule(host=host)
driver.cast_to_volume_host(context,
host,
'create_volume',
volume_id=volume_id,
**_kwargs)
return None
results = db.service_get_all_volume_sorted(elevated)
if zone:
results = [(service, gigs) for (service, gigs) in results
if service['availability_zone'] == zone]
for result in results:
(service, volume_gigabytes) = result
if volume_gigabytes + volume_ref['size'] > FLAGS.max_gigabytes:
msg = _("Not enough allocatable volume gigabytes remaining")
raise exception.NoValidHost(reason=msg)
if self.service_is_up(service):
driver.cast_to_volume_host(context,
service['host'],
'create_volume',
volume_id=volume_id,
**_kwargs)
return None
msg = _("Is the appropriate service running?")
raise exception.NoValidHost(reason=msg)
