def call(self, context, method, *args, **kwargs):
"""Call a glance client method.
If we get a connection error,
retry the request according to CONF.glance_num_retries.
"""
retry_excs = (glanceclient.exc.ServiceUnavailable,
glanceclient.exc.InvalidEndpoint,
glanceclient.exc.CommunicationError)
num_attempts = 1 + CONF.glance_num_retries
glance_controller = kwargs.pop('controller', 'images')
store_id = kwargs.pop('store_id', None)
base_image_ref = kwargs.pop('base_image_ref', None)
for attempt in range(1, num_attempts + 1):
client = self.client or self._create_onetime_client(context)
keys = (
'x-image-meta-store',
'x-openstack-base-image-ref',
)
values = (
store_id,
base_image_ref,
)
headers = {k: v for (k, v) in zip(keys, values) if v is not None}
if headers:
client.http_client.additional_headers = headers
try:
controller = getattr(client, glance_controller)
return getattr(controller, method)(*args, **kwargs)
except retry_excs as e:
netloc = self.netloc
extra = "retrying"
error_msg = _("Error contacting glance server "
"'%(netloc)s' for '%(method)s', "
"%(extra)s.")
if attempt == num_attempts:
extra = 'done trying'
LOG.exception(error_msg, {
'netloc': netloc,
'method': method,
'extra': extra
})
raise exception.GlanceConnectionFailed(reason=e)
LOG.exception(error_msg, {
'netloc': netloc,
'method': method,
'extra': extra
})
time.sleep(1)
except glanceclient.exc.HTTPOverLimit as e:
raise exception.ImageLimitExceeded(e)
def call(self, context, method, *args, **kwargs):
"""Call a glance client method.
If we get a connection error,
retry the request according to CONF.glance_num_retries.
"""
version = kwargs.pop('version', self.version)
retry_excs = (glanceclient.exc.ServiceUnavailable,
glanceclient.exc.InvalidEndpoint,
glanceclient.exc.CommunicationError)
num_attempts = 1 + CONF.glance_num_retries
for attempt in range(1, num_attempts + 1):
client = self.client or self._create_onetime_client(
context, version)
try:
controller = getattr(client,
kwargs.pop('controller', 'images'))
return getattr(controller, method)(*args, **kwargs)
except retry_excs as e:
netloc = self.netloc
extra = "retrying"
error_msg = _("Error contacting glance server "
"'%(netloc)s' for '%(method)s', "
"%(extra)s.")
if attempt == num_attempts:
extra = 'done trying'
LOG.exception(error_msg, {
'netloc': netloc,
'method': method,
'extra': extra
})
raise exception.GlanceConnectionFailed(reason=e)
LOG.exception(error_msg, {
'netloc': netloc,
'method': method,
'extra': extra
})
time.sleep(1)
except glanceclient.exc.HTTPOverLimit as e:
raise exception.ImageLimitExceeded(e)
