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Neutron: router-gateway-set auf externes Netzwerk schlägt fehl

2015-11-24

Neutron: router-gateway-set auf externes Netzwerk schlägt fehl

Machine-translated — the English original is authoritative.

Heute wurde ich gebeten, ein „fehlgeschlagenes OpenStack-Netzwerk“ zu untersuchen, bei dem ein Kunde das Produkt im vergangenen Monat evaluiert hatte. Wie immer wurde nichts geändert, es funktionierte einfach nicht mehr 😉

Eine weitere Herausforderung bei diesem Engagement bestand darin, dass ich keinen direkten Zugriff auf das System hatte – ich befand mich in einem anderen Land und erhielt keinen Remote-Zugriff. Daher erstellte ich ein Google-Dokument mit einer detaillierten Liste von Befehlen und teilte dieses mit dem OpenStack-Betreiber. Wir nutzten dies als Grundlage für unsere Zusammenarbeit und Untersuchung. Die nächsten beiden Blogbeiträge sind im Grunde das finale Dokument, das erstellt wurde.

Die ursprüngliche Beschwerde lautete, dass das externe Netzwerk nicht funktionierte.

So sah der Fehler aus:

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron router-gateway-set 8c8a0159-2b37-4fae-93e9-b302a9d59573 35510045-decf-491e-9990-87a3f77f0284

Request Failed: internal server error while processing your request.

Vergessen Sie nicht, dass Sie den Schalter „–debug“ hinzufügen können, um eine ausführlichere Ausgabe zu erhalten..

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron --debug router-gateway-set 8c8a0159-2b37-4fae-93e9-b302a9d59573 35510045-decf-491e-9990-87a3f77f0284

DEBUG: keystoneclient.session REQ: curl -i -X GET https://10.254.25.35:5000/v2.0 -H "Accept: application/json" -H "User-Agent: python-keystoneclient"

DEBUG: keystoneclient.session RESP: [200] content-length: 423 vary: X-Auth-Token keep-alive: timeout=5, max=100 server: Apache/2.4.10 (Debian) connection: Keep-Alive date: Fri, 20 Nov 2015 16:27:30 GMT content-type: application/json

RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}, {"base": "application/xml", "type": "application/vnd.openstack.identity-v2.0+xml"}], "id": "v2.0", "links": [{"href": "https://10.254.25.35:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}

DEBUG: neutronclient.neutron.v2_0.router.SetGatewayRouter run(Namespace(disable_snat=False, external_network_id=u'35510045-decf-491e-9990-87a3f77f0284', request_format='json', router_id=u'8c8a0159-2b37-4fae-93e9-b302a9d59573'))

DEBUG: keystoneclient.auth.identity.v2 Making authentication request to https://10.254.25.35:5000/v2.0/tokens

DEBUG: keystoneclient.session REQ: curl -i -X GET https://10.254.25.35:9696/v2.0/routers.json?fields=id&id=8c8a0159-2b37-4fae-93e9-b302a9d59573 -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}04e2fb3010f4069945373862d00e12d9e34c488a"

DEBUG: keystoneclient.session RESP: [200] date: Fri, 20 Nov 2015 16:27:31 GMT connection: keep-alive content-type: application/json; charset=UTF-8 content-length: 61 x-openstack-request-id: req-b6469ccc-b81e-4ae1-82ea-e0413bd46f3d

RESP BODY: {"routers": [{"id": "8c8a0159-2b37-4fae-93e9-b302a9d59573"}]}

DEBUG: keystoneclient.session REQ: curl -i -X GET https://10.254.25.35:9696/v2.0/networks.json?fields=id&id=35510045-decf-491e-9990-87a3f77f0284 -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}04e2fb3010f4069945373862d00e12d9e34c488a"

DEBUG: keystoneclient.session RESP: [200] date: Fri, 20 Nov 2015 16:27:31 GMT connection: keep-alive content-type: application/json; charset=UTF-8 content-length: 62 x-openstack-request-id: req-e39fba85-c775-4296-a52f-a83731a5b5f2

RESP BODY: {"networks": [{"id": "35510045-decf-491e-9990-87a3f77f0284"}]}

DEBUG: keystoneclient.session REQ: curl -i -X PUT https://10.254.25.35:9696/v2.0/routers/8c8a0159-2b37-4fae-93e9-b302a9d59573.json -H "User-Agent: python-neutronclient" -H "Content-Type: application/json" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}04e2fb3010f4069945373862d00e12d9e34c488a" -d '{"router": {"external_gateway_info": {"network_id": "35510045-decf-491e-9990-87a3f77f0284"}}}'

DEBUG: keystoneclient.session RESP:

DEBUG: neutronclient.v2_0.client Error message: {"NeutronError": {"message": "Request Failed: internal server error while processing your request.", "type": "HTTPInternalServerError", "detail": ""}}

ERROR: neutronclient.shell Request Failed: internal server error while processing your request.

Traceback (most recent call last):

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/shell.py", line 701, in run_subcommand

   return run_command(cmd, cmd_parser, sub_argv)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/shell.py", line 92, in run_command

   return cmd.run(known_args)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/neutron/v2_0/router.py", line 205, in run

   neutron_client.add_gateway_router(_router_id, router_dict)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 98, in with_params

   ret = self.function(instance, *args, **kwargs)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 432, in add_gateway_router

   body={'router': {'external_gateway_info': body}})

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1322, in put

   headers=headers, params=params)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1290, in retry_request

   headers=headers, params=params)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1244, in do_request

   self._handle_fault_response(status_code, replybody)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1218, in _handle_fault_response

   exception_handler_v20(status_code, des_error_body)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 66, in exception_handler_v20

   status_code=status_code)

InternalServerError: Request Failed: internal server error while processing your request.

Überprüfen Sie die Protokolldateien für den erstellten Router wie folgt:

grep 8c8a0159-2b37-4fae-93e9-b302a9d59573 -l -R /var/log/*

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# grep 8c8a0159-2b37-4fae-93e9-b302a9d59573 -l -R /var/log/*

/var/log/horizon/horizon-json.log

/var/log/horizon/horizon_error.log

/var/log/neutron/neutron-json.log

/var/log/neutron/neutron.log

Die Untersuchung der neutron.log-Datei zeigt die Ursache des Problems –

„TooManyExternalNetworks: More than one external network exists“

neutron.log

Ein kurzer Check mit neutron zeigt die Existenz von zwei externen Netzwerken auf – dies wird von dieser Version von OpenStack nicht unterstützt.

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-external-list

+--------------------------------------+---------+-----------------------------------------------------+

| id                                    | name  | subnets                                               |

+--------------------------------------+---------+-----------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24 |

| f917a3eb-957a-4c0a-baa8-8b20607440a0 | direct  |                                                       |

+--------------------------------------+---------+-----------------------------------------------------+

Die Lösung ist einfach – entfernen Sie das zweite externe Netzwerk.

Entfernen Sie das neue externe Netzwerk namens direct.

Listen Sie alle aktuellen Netzwerke auf

neutron net-list

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-list

+--------------------------------------+-------------+-------------------------------------------------------+

| id                                    | name  | subnets                                                    |

+--------------------------------------+-------------+-------------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24   |

| 4259ab26-a1c4-427e-a7e0-b941368c4e23 | default-net | d20f33e0-82f1-4ce1-80cf-17a27c86d11c 172.0.100.0/24   |

| 73ff3b91-77ad-4ef4-aa67-a99a5ef57650 | demo_net1   | 4a20b788-da40-48a0-b459-5034d2831adf 192.168.111.0/24 |

| a493f23f-3646-49c5-a342-82c0ac7601f6 | lab2-net| 75542425-b437-4433-a9d8-3009527e1435 192.168.1.0/24   |

| d2ad4daa-d004-40bd-afa8-b7e19b8dde67 | HPinternal  | 28d80588-9bf1-415e-a1f3-b08d95d5bf14 10.0.0.0/24  |

| e70da3b0-ad8d-4ec0-9dd7-40ba563d2416 | SVC    | 57929850-9c6a-4917-a8a4-61c033d72705 10.254.26.0/24   |

| e99f2cdd-eb42-4466-9b17-7cb85636c013 | lab1-net1   | 60b9efc0-081f-45fd-b06c-0ce88fc04d50 192.168.113.0/24 |

| f917a3eb-957a-4c0a-baa8-8b20607440a0 | direct  |   |

+--------------------------------------+-------------+-------------------------------------------------------+

Identifizieren Sie die externen Netzwerke

neutron net-external-list

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-external-list

+--------------------------------------+---------+-----------------------------------------------------+

| id                                    | name      | subnets |

+--------------------------------------+---------+-----------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24 |

| f917a3eb-957a-4c0a-baa8-8b20607440a0 | direct  |                                                      |

+--------------------------------------+---------+-----------------------------------------------------+

Löschen Sie das zusätzliche externe Netzwerk

neutron net-delete direct

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-delete direct

Deleted network: direct

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-list

+--------------------------------------+-------------+-------------------------------------------------------+

| id                                    | name          | subnets   |

+--------------------------------------+-------------+-------------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net    | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24   |

| 4259ab26-a1c4-427e-a7e0-b941368c4e23 | default-net | d20f33e0-82f1-4ce1-80cf-17a27c86d11c 172.0.100.0/24   |

| 73ff3b91-77ad-4ef4-aa67-a99a5ef57650 | demo_net1   | 4a20b788-da40-48a0-b459-5034d2831adf 192.168.111.0/24 |

| a493f23f-3646-49c5-a342-82c0ac7601f6 | lab2-net   | 75542425-b437-4433-a9d8-3009527e1435 192.168.1.0/24   |

| d2ad4daa-d004-40bd-afa8-b7e19b8dde67 | HPinternal  | 28d80588-9bf1-415e-a1f3-b08d95d5bf14 10.0.0.0/24  |

| e70da3b0-ad8d-4ec0-9dd7-40ba563d2416 | SVC        | 57929850-9c6a-4917-a8a4-61c033d72705 10.254.26.0/24   |

| e99f2cdd-eb42-4466-9b17-7cb85636c013 | lab1-net1   | 60b9efc0-081f-45fd-b06c-0ce88fc04d50 192.168.113.0/24 |

+--------------------------------------+-------------+-------------------------------------------------------+

Der nächste Blogbeitrag wird die Gesundheit sowohl der grundlegenden Helion OpenStack-Dienste als auch des Neutron-Netzwerks überprüfen.

Originally published on allthingscloud.eu (2015-11-24).

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