def _resolve_host(self, req_func, allow_redirect, path, operation,
**kwargs):
"""
internal function used to resolve federation and HA and
return response of resolved host.
"""
uri_without_host = self._create_uri(path, operation, **kwargs)
hosts = self._resolve_federation(path)
for host in hosts:
hostport = host.split(':')
uri = uri_without_host.format(
host=hostport[0],
port=int(hostport[1]) if len(hostport) > 1 else self.port)
try:
response = req_func(uri,
allow_redirects=allow_redirect,
timeout=self.timeout,
**self.request_extra_opts)
if not _is_standby_exception(response):
_move_active_host_to_head(hosts, host)
return response
except requests.exceptions.RequestException as e:
traceback.print_exc()
print("Error connecting to host {}".format(host))
continue
raise errors.ActiveHostNotFound(msg="Could not find active host")
def _resolve_host(self, req_func, allow_redirect, path, operation,
**kwargs):
"""
This is where the magic happens, and where omniduct handles redirects
during federation and HA.
"""
import requests
uri_without_host = self._create_uri(path, operation, **kwargs)
hosts = self._resolve_federation(path)
for host in hosts:
uri = uri_without_host.format(host=host)
try:
while True:
response = req_func(uri,
allow_redirects=False,
timeout=self.timeout,
**self.request_extra_opts)
if allow_redirect and response.status_code == http_client.TEMPORARY_REDIRECT:
uri = self._make_uri_local(
response.headers['location'])
else:
break
if not allow_redirect and response.status_code == http_client.TEMPORARY_REDIRECT:
response.headers['location'] = self._make_uri_local(
response.headers['location'])
if not _is_standby_exception(response):
_move_active_host_to_head(hosts, host)
return response
except requests.exceptions.RequestException:
pass
raise errors.ActiveHostNotFound(msg="Could not find active host")
def _resolve_host(self, req_func, allow_redirect,
path, operation, **kwargs):
"""
internal function used to resolve federation and HA and
return response of resolved host.
"""
uri_without_host = self._create_uri(path, operation, **kwargs)
hosts = self._resolve_federation(path)
for host in hosts:
uri = uri_without_host.format(host=host)
response = req_func(uri, allow_redirects=allow_redirect,
timeout=self.timeout)
if not _is_standby_exception(response):
_move_active_host_to_head(hosts, host)
return response
raise errors.ActiveHostNotFound(msg="Could not find active host")