| 2015-04-04 13:50:46 |
Vikram Hosakote |
description |
When neutron lbaas agent is not running, all the ‘neutron lb*’ commands communicate with the neutron-server unnecessarily and receive an HTTP 404 error (The resource could not be found) as the response. This causes unnecessary/useless HTTP/curl traffic between the neutron client and the neutron-server. Hence, the user thinks that something is wrong with the lbaas agent (when it is not even running!).
Instead, the python-neutronclient must check if the neutron lbaas agent is running or not, and must throw an error like “Neutron Load Balancer Agent not running” when any ‘neutron lb*’ command is run so the user knows that the lbaas agent must be started first.
The ‘ps’ command below shows that the neutron lbaas agent is not running.
$ ps aux | grep lb
$
$ neutron lb-healthmonitor-list
404 Not Found
The resource could not be found.
$ neutron lb-member-list
404 Not Found
The resource could not be found.
$ neutron lb-pool-list
404 Not Found
The resource could not be found.
$ neutron lb-vip-list
404 Not Found
The resource could not be found.
$ neutron lbaas-healthmonitor-list
404 Not Found
The resource could not be found.
$ neutron lbaas-listener-list
404 Not Found
The resource could not be found.
$ neutron lbaas-loadbalancer-list
404 Not Found
The resource could not be found.
$ neutron lbaas-pool-list
404 Not Found
The resource could not be found.
$ neutron --version
2.3.11
=============================
Below are the neutron verbose messages that show the unnecessary HTTP/curl communication with the neutron-server.
$ neutron -v lb-healthmonitor-list
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:5000/v2.0/ -H "Accept: application/json" -H "User-Agent: python-keystoneclient"
DEBUG: keystoneclient.session RESP: [200] content-length: 341 vary: X-Auth-Token keep-alive: timeout=5, max=100 server: Apache/2.4.7 (Ubuntu) connection: Keep-Alive date: Sat, 04 Apr 2015 04:37:54 GMT content-type: application/json x-openstack-request-id: req-95c6d1e1-02a7-4077-8ed2-0cb4f574a397
RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}], "id": "v2.0", "links": [{"href": "http://192.168.122.205:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}
DEBUG: stevedore.extension found extension EntryPoint.parse('table = cliff.formatters.table:TableFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('csv = cliff.formatters.commaseparated:CSVLister')
DEBUG: stevedore.extension found extension EntryPoint.parse('yaml = clifftablib.formatters:YamlFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('json = clifftablib.formatters:JsonFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('html = clifftablib.formatters:HtmlFormatter')
DEBUG: neutronclient.neutron.v2_0.lb.healthmonitor.ListHealthMonitor get_data(Namespace(columns=[], fields=[], formatter='table', max_width=0, page_size=None, quote_mode='nonnumeric', request_format='json', show_details=False, sort_dir=[], sort_key=[]))
DEBUG: keystoneclient.auth.identity.v2 Making authentication request to http://192.168.122.205:5000/v2.0/tokens
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:9696/v2.0/lb/health_monitors.json -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}23f2a54d0348e6bfc5364565ece4baf2e2148fa8"
DEBUG: keystoneclient.session RESP:
DEBUG: neutronclient.v2_0.client Error message: 404 Not Found
The resource could not be found.
ERROR: neutronclient.shell 404 Not Found
The resource could not be found.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 760, in run_subcommand
return run_command(cmd, cmd_parser, sub_argv)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 100, in run_command
return cmd.run(known_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 29, in run
return super(OpenStackCommand, self).run(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/cliff/display.py", line 91, in run
column_names, data = self.take_action(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 35, in take_action
return self.get_data(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 691, in get_data
data = self.retrieve_list(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 654, in retrieve_list
data = self.call_server(neutron_client, search_opts, parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 626, in call_server
data = obj_lister(**search_opts)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 102, in with_params
ret = self.function(instance, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1088, in list_health_monitors
retrieve_all, **_params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 307, in list
for r in self._pagination(collection, path, **params):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 320, in _pagination
res = self.get(path, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 293, in get
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 270, in retry_request
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 211, in do_request
self._handle_fault_response(status_code, replybody)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 185, in _handle_fault_response
exception_handler_v20(status_code, des_error_body)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 83, in exception_handler_v20
message=message)
NeutronClientException: 404 Not Found
The resource could not be found.
=============================
$ neutron -v lb-member-list
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:5000/v2.0/ -H "Accept: application/json" -H "User-Agent: python-keystoneclient"
DEBUG: keystoneclient.session RESP: [200] content-length: 341 vary: X-Auth-Token keep-alive: timeout=5, max=100 server: Apache/2.4.7 (Ubuntu) connection: Keep-Alive date: Sat, 04 Apr 2015 04:39:43 GMT content-type: application/json x-openstack-request-id: req-3b906800-0aae-40a1-aca0-08f220f50878
RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}], "id": "v2.0", "links": [{"href": "http://192.168.122.205:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}
DEBUG: stevedore.extension found extension EntryPoint.parse('table = cliff.formatters.table:TableFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('csv = cliff.formatters.commaseparated:CSVLister')
DEBUG: stevedore.extension found extension EntryPoint.parse('yaml = clifftablib.formatters:YamlFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('json = clifftablib.formatters:JsonFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('html = clifftablib.formatters:HtmlFormatter')
DEBUG: neutronclient.neutron.v2_0.lb.member.ListMember get_data(Namespace(columns=[], fields=[], formatter='table', max_width=0, page_size=None, quote_mode='nonnumeric', request_format='json', show_details=False, sort_dir=[], sort_key=[]))
DEBUG: keystoneclient.auth.identity.v2 Making authentication request to http://192.168.122.205:5000/v2.0/tokens
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:9696/v2.0/lb/members.json -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}480bc62db89194e83942975df576f28c5a463b8d"
DEBUG: keystoneclient.session RESP:
DEBUG: neutronclient.v2_0.client Error message: 404 Not Found
The resource could not be found.
ERROR: neutronclient.shell 404 Not Found
The resource could not be found.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 760, in run_subcommand
return run_command(cmd, cmd_parser, sub_argv)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 100, in run_command
return cmd.run(known_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 29, in run
return super(OpenStackCommand, self).run(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/cliff/display.py", line 91, in run
column_names, data = self.take_action(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 35, in take_action
return self.get_data(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 691, in get_data
data = self.retrieve_list(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 654, in retrieve_list
data = self.call_server(neutron_client, search_opts, parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 626, in call_server
data = obj_lister(**search_opts)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 102, in with_params
ret = self.function(instance, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1061, in list_members
**_params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 307, in list
for r in self._pagination(collection, path, **params):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 320, in _pagination
res = self.get(path, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 293, in get
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 270, in retry_request
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 211, in do_request
self._handle_fault_response(status_code, replybody)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 185, in _handle_fault_response
exception_handler_v20(status_code, des_error_body)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 83, in exception_handler_v20
message=message)
NeutronClientException: 404 Not Found
The resource could not be found. |
When neutron lbaas agent is not running, all the ‘neutron lb*’ commands display "404 Not Found". This makes the user think that something is wrong with the lbaas agent (when it is not even running!).
Instead, when neutron lbaas agent is not running, an error like “Neutron Load Balancer Agent not running” must be displayed so the user knows that the lbaas agent must be started first.
The ‘ps’ command below shows that the neutron lbaas agent is not running.
$ ps aux | grep lb
$
$ neutron lb-healthmonitor-list
404 Not Found
The resource could not be found.
$ neutron lb-member-list
404 Not Found
The resource could not be found.
$ neutron lb-pool-list
404 Not Found
The resource could not be found.
$ neutron lb-vip-list
404 Not Found
The resource could not be found.
$ neutron lbaas-healthmonitor-list
404 Not Found
The resource could not be found.
$ neutron lbaas-listener-list
404 Not Found
The resource could not be found.
$ neutron lbaas-loadbalancer-list
404 Not Found
The resource could not be found.
$ neutron lbaas-pool-list
404 Not Found
The resource could not be found.
$ neutron --version
2.3.11
=============================
Below are the neutron verbose messages that show "404 Not Found".
$ neutron -v lb-healthmonitor-list
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:5000/v2.0/ -H "Accept: application/json" -H "User-Agent: python-keystoneclient"
DEBUG: keystoneclient.session RESP: [200] content-length: 341 vary: X-Auth-Token keep-alive: timeout=5, max=100 server: Apache/2.4.7 (Ubuntu) connection: Keep-Alive date: Sat, 04 Apr 2015 04:37:54 GMT content-type: application/json x-openstack-request-id: req-95c6d1e1-02a7-4077-8ed2-0cb4f574a397
RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}], "id": "v2.0", "links": [{"href": "http://192.168.122.205:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}
DEBUG: stevedore.extension found extension EntryPoint.parse('table = cliff.formatters.table:TableFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('csv = cliff.formatters.commaseparated:CSVLister')
DEBUG: stevedore.extension found extension EntryPoint.parse('yaml = clifftablib.formatters:YamlFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('json = clifftablib.formatters:JsonFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('html = clifftablib.formatters:HtmlFormatter')
DEBUG: neutronclient.neutron.v2_0.lb.healthmonitor.ListHealthMonitor get_data(Namespace(columns=[], fields=[], formatter='table', max_width=0, page_size=None, quote_mode='nonnumeric', request_format='json', show_details=False, sort_dir=[], sort_key=[]))
DEBUG: keystoneclient.auth.identity.v2 Making authentication request to http://192.168.122.205:5000/v2.0/tokens
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:9696/v2.0/lb/health_monitors.json -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}23f2a54d0348e6bfc5364565ece4baf2e2148fa8"
DEBUG: keystoneclient.session RESP:
DEBUG: neutronclient.v2_0.client Error message: 404 Not Found
The resource could not be found.
ERROR: neutronclient.shell 404 Not Found
The resource could not be found.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 760, in run_subcommand
return run_command(cmd, cmd_parser, sub_argv)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 100, in run_command
return cmd.run(known_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 29, in run
return super(OpenStackCommand, self).run(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/cliff/display.py", line 91, in run
column_names, data = self.take_action(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 35, in take_action
return self.get_data(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 691, in get_data
data = self.retrieve_list(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 654, in retrieve_list
data = self.call_server(neutron_client, search_opts, parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 626, in call_server
data = obj_lister(**search_opts)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 102, in with_params
ret = self.function(instance, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1088, in list_health_monitors
retrieve_all, **_params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 307, in list
for r in self._pagination(collection, path, **params):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 320, in _pagination
res = self.get(path, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 293, in get
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 270, in retry_request
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 211, in do_request
self._handle_fault_response(status_code, replybody)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 185, in _handle_fault_response
exception_handler_v20(status_code, des_error_body)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 83, in exception_handler_v20
message=message)
NeutronClientException: 404 Not Found
The resource could not be found.
=============================
$ neutron -v lb-member-list
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:5000/v2.0/ -H "Accept: application/json" -H "User-Agent: python-keystoneclient"
DEBUG: keystoneclient.session RESP: [200] content-length: 341 vary: X-Auth-Token keep-alive: timeout=5, max=100 server: Apache/2.4.7 (Ubuntu) connection: Keep-Alive date: Sat, 04 Apr 2015 04:39:43 GMT content-type: application/json x-openstack-request-id: req-3b906800-0aae-40a1-aca0-08f220f50878
RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}], "id": "v2.0", "links": [{"href": "http://192.168.122.205:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}
DEBUG: stevedore.extension found extension EntryPoint.parse('table = cliff.formatters.table:TableFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('csv = cliff.formatters.commaseparated:CSVLister')
DEBUG: stevedore.extension found extension EntryPoint.parse('yaml = clifftablib.formatters:YamlFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('json = clifftablib.formatters:JsonFormatter')
DEBUG: stevedore.extension found extension EntryPoint.parse('html = clifftablib.formatters:HtmlFormatter')
DEBUG: neutronclient.neutron.v2_0.lb.member.ListMember get_data(Namespace(columns=[], fields=[], formatter='table', max_width=0, page_size=None, quote_mode='nonnumeric', request_format='json', show_details=False, sort_dir=[], sort_key=[]))
DEBUG: keystoneclient.auth.identity.v2 Making authentication request to http://192.168.122.205:5000/v2.0/tokens
DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://192.168.122.205:9696/v2.0/lb/members.json -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}480bc62db89194e83942975df576f28c5a463b8d"
DEBUG: keystoneclient.session RESP:
DEBUG: neutronclient.v2_0.client Error message: 404 Not Found
The resource could not be found.
ERROR: neutronclient.shell 404 Not Found
The resource could not be found.
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 760, in run_subcommand
return run_command(cmd, cmd_parser, sub_argv)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/shell.py", line 100, in run_command
return cmd.run(known_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 29, in run
return super(OpenStackCommand, self).run(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/cliff/display.py", line 91, in run
column_names, data = self.take_action(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/common/command.py", line 35, in take_action
return self.get_data(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 691, in get_data
data = self.retrieve_list(parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 654, in retrieve_list
data = self.call_server(neutron_client, search_opts, parsed_args)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/__init__.py", line 626, in call_server
data = obj_lister(**search_opts)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 102, in with_params
ret = self.function(instance, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 1061, in list_members
**_params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 307, in list
for r in self._pagination(collection, path, **params):
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 320, in _pagination
res = self.get(path, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 293, in get
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 270, in retry_request
headers=headers, params=params)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 211, in do_request
self._handle_fault_response(status_code, replybody)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 185, in _handle_fault_response
exception_handler_v20(status_code, des_error_body)
File "/usr/local/lib/python2.7/dist-packages/neutronclient/v2_0/client.py", line 83, in exception_handler_v20
message=message)
NeutronClientException: 404 Not Found
The resource could not be found. |
|
