HOS – Control Plane Service Verification (1 of 4)
2015-11-25
First letβs verify the basic overcloud control plane services:
Check the compute services
nova service-list
[expect Status:enabled and State:up]
+----+------------------+-----------------------------------------------------+----------+---------+-------+----------------------------+-----------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+----+------------------+-----------------------------------------------------+----------+---------+-------+----------------------------+-----------------+
| 3 | nova-conductor | overcloud-ce-controller-controller1-7g6rbkrawrmb| internal | enabled | up | 2015-11-23T09:53:00.000000 | - |
| 6 | nova-cert | overcloud-ce-controller-controller1-7g6rbkrawrmb| internal | enabled | up | 2015-11-23T09:52:59.000000 | - |
| 9 | nova-conductor | overcloud-ce-controller-controller2-wjg7a27togvj| internal | enabled | up | 2015-11-23T09:53:02.000000 | - |
| 15 | nova-scheduler | overcloud-ce-controller-controller1-7g6rbkrawrmb| internal | enabled | up | 2015-11-23T09:53:00.000000 | - |
| 18 | nova-cert | overcloud-ce-controller-controller2-wjg7a27togvj| internal | enabled | up | 2015-11-23T09:53:01.000000 | - |
| 21 | nova-scheduler | overcloud-ce-controller-controller2-wjg7a27togvj| internal | enabled | up | 2015-11-23T09:52:58.000000 | - |
| 24 | nova-conductor | overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up | 2015-11-23T09:53:04.000000 | - |
| 27 | nova-cert | overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up | 2015-11-23T09:53:01.000000 | - |
| 30 | nova-scheduler | overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up | 2015-11-23T09:53:03.000000 | - |
| 33 | nova-consoleauth | overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up | 2015-11-23T09:52:57.000000 | - |
| 36 | nova-compute | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | nova | enabled | up | 2015-11-23T09:53:03.000000 | None |
| 39 | nova-compute | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | nova | enabled | up | 2015-11-23T09:53:04.000000 | None |
+----+------------------+-----------------------------------------------------+----------+---------+-------+----------------------------+-----------------+
Check the networking services
neutron agent-list
[expect alive: π and admin_state_up:true]
+--------------------------------------+--------------------+-----------------------------------------------------+-------+----------------+---------------------------+
| id | agent_type | host | alive | admin_state_up | binary |
+--------------------------------------+--------------------+-----------------------------------------------------+-------+----------------+---------------------------+
| 1867a83d-e4fa-4ee3-9893-1d8b72547ccf | Open vSwitch agent | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | π | True | neutron-openvswitch-agent |
| 193548d7-009a-4432-9533-28d8445ccd6f | Open vSwitch agent | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | π | True | neutron-openvswitch-agent |
| 2ae95bab-0ad4-47d6-a4dc-288f6cac2aff | L3 agent | overcloud-ce-controller-controller1-7g6rbkrawrmb| π | True | neutron-l3-agent |
| 2d174ed9-5076-4d24-83e1-f8e13c01e20c | Metadata agent | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | π | True | neutron-metadata-agent |
| 2dab983c-ecc6-4616-ba66-60aa5de5ca00 | L3 agent | overcloud-ce-controller-controller0-dlmy4f5tbc5d| π | True | neutron-l3-agent |
| 32ea5ae1-035c-45f4-9499-a99e8517d5f9 | Metadata agent | overcloud-ce-controller-controller0-dlmy4f5tbc5d| π | True | neutron-metadata-agent |
| 4283a946-62f4-488d-be5f-c65e95ffcde2 | DHCP agent | overcloud-ce-controller-controller2-wjg7a27togvj| π | True | neutron-dhcp-agent |
| 4801da91-b2a9-4310-b11f-a5cc5e995977 | L3 agent | overcloud-ce-controller-controller2-wjg7a27togvj| π | True | neutron-l3-agent |
| 4e75a59e-002b-4e6a-9cdf-1a18d690f729 | L3 agent | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | π | True | neutron-l3-agent |
| 61546593-86fb-4954-8cc5-56f7592ecfe3 | Open vSwitch agent | overcloud-ce-controller-controller2-wjg7a27togvj| π | True | neutron-openvswitch-agent |
| 65894379-60d3-4ba9-8c83-154903a1b1c4 | DHCP agent | overcloud-ce-controller-controller0-dlmy4f5tbc5d| π | True | neutron-dhcp-agent |
| 78d8c1e9-e594-4436-b361-8ae8c5e93eca | DHCP agent | overcloud-ce-controller-controller1-7g6rbkrawrmb| π | True | neutron-dhcp-agent |
| 818cd044-ac99-41a8-b265-5e5bcc588ebe | L3 agent | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | π | True | neutron-l3-agent |
| 86335e06-ca66-49e3-9284-08e19fba202d | Metadata agent | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | π | True | neutron-metadata-agent |
| b6c3c769-8093-4e7b-8210-4875dc12f034 | Open vSwitch agent | overcloud-ce-controller-controller0-dlmy4f5tbc5d| π | True | neutron-openvswitch-agent |
| b91d9eb2-a7ac-439b-8f8b-e5ad13f00bb1 | Metadata agent | overcloud-ce-controller-controller2-wjg7a27togvj| π | True | neutron-metadata-agent |
| e2f34b55-b759-4b6a-accb-543d576851a0 | Open vSwitch agent | overcloud-ce-controller-controller1-7g6rbkrawrmb| π | True | neutron-openvswitch-agent |
| eddf55c5-ae7b-402a-991a-7d2f401d7c59 | Metadata agent | overcloud-ce-controller-controller1-7g6rbkrawrmb| π | True | neutron-metadata-agent |
+--------------------------------------+--------------------+-----------------------------------------------------+-------+----------------+---------------------------+
Check the galera mysql cluster
mysql -e βshow status like βwsrep_%'β
[expect wsrep_replicated:2, wsrep_incoming_addresses:[,,] or [3 ip addresses], wsrep_local_state_comment:Synced]
+----------------------------+--------------------------------------+
| Variable_name | Value |
+----------------------------+--------------------------------------+
| wsrep_local_state_uuid | bc0491b1-77fc-11e5-8494-dabc449af6f2 |
| wsrep_protocol_version | 4 |
| wsrep_last_committed | 5986661 |
| wsrep_replicated | 5986657 |
| wsrep_replicated_bytes | 4137351580 |
| wsrep_received | 13627 |
| wsrep_received_bytes | 110649 |
| wsrep_local_commits | 5985563 |
| wsrep_local_cert_failures | 1 |
| wsrep_local_replays | 0 |
| wsrep_local_send_queue | 0 |
| wsrep_local_send_queue_avg | 0.000000 |
| wsrep_local_recv_queue | 0 |
| wsrep_local_recv_queue_avg | 0.000000 |
| wsrep_flow_control_paused | 0.000000 |
| wsrep_flow_control_sent | 0 |
| wsrep_flow_control_recv | 0 |
| wsrep_cert_deps_distance | 19.111524 |
| wsrep_apply_oooe | 0.000000 |
| wsrep_apply_oool | 0.000000 |
| wsrep_apply_window | 1.000000 |
| wsrep_commit_oooe | 0.000000 |
| wsrep_commit_oool | 0.000000 |
| wsrep_commit_window | 1.000000 |
| wsrep_local_state | 4 |
| wsrep_local_state_comment | Synced |
| wsrep_cert_index_size | 68 |
| wsrep_causal_reads | 0 |
| wsrep_incoming_addresses | ,, |
| wsrep_cluster_conf_id | 4 |
| wsrep_cluster_size | 3 |
| wsrep_cluster_state_uuid | bc0491b1-77fc-11e5-8494-dabc449af6f2 |
| wsrep_cluster_status | Primary |
| wsrep_connected | ON |
| wsrep_local_bf_aborts | 0 |
| wsrep_local_index | 2 |
| wsrep_provider_name | Galera |
| wsrep_provider_vendor | Codership Oy <info@codership.com> |
| wsrep_provider_version | 2.10(r175) |
| wsrep_ready | ON |
+----------------------------+--------------------------------------+
Check the message queue is running
rabbitmqctl cluster_status
root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# rabbitmqctl cluster_status
Cluster status of node 'rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d' ...
[{nodes,[{disc,['rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d',
'rabbit@overcloud-ce-controller-controller1-7g6rbkrawrmb',
'rabbit@overcloud-ce-controller-controller2-wjg7a27togvj']}]},
{running_nodes,['rabbit@overcloud-ce-controller-controller1-7g6rbkrawrmb',
'rabbit@overcloud-ce-controller-controller2-wjg7a27togvj',
'rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d']},
{cluster_name,<< "rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d.novalocal" >>},
{partitions,[]}]
Gather the controller configurations
Controller 0
Get the Openvswitch configuration
ovs-vsctl show
root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# ovs-vsctl show
4a0f6c38-215d-498f-a5ac-0d0804d21665
Bridge br-ex
Port br-ex
Interface br-ex
type: internal
Port "qg-5b6914d7-f7"
Interface "qg-5b6914d7-f7"
type: internal
Port "vlan1274"
Interface "vlan1274"
Port "qg-1d075498-b3"
Interface "qg-1d075498-b3"
type: internal
Bridge br-int
fail_mode: secure
Port "qr-0703300d-84"
tag: 1
Interface "qr-0703300d-84"
type: internal
Port "tap9065ae01-64"
tag: 6
Interface "tap9065ae01-64"
type: internal
Port "qr-0b36af9c-8c"
Interface "qr-0b36af9c-8c"
type: internal
Port "sg-f4b08ba6-10"
Interface "sg-f4b08ba6-10"
type: internal
Port "sg-161f8764-8f"
tag: 1
Interface "sg-161f8764-8f"
type: internal
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port "sg-8b3ee21d-13"
tag: 3
Interface "sg-8b3ee21d-13"
type: internal
Port br-int
Interface br-int
type: internal
Port "tapc8e92a29-75"
tag: 1
Interface "tapc8e92a29-75"
type: internal
Port int-br-svc
Interface int-br-svc
type: patch
options: {peer=phy-br-svc}
Port "sg-00f5256d-4f"
tag: 1
Interface "sg-00f5256d-4f"
type: internal
Port "tapd4181845-fb"
tag: 2
Interface "tapd4181845-fb"
type: internal
Port "qr-c73759bd-9d"
tag: 3
Interface "qr-c73759bd-9d"
type: internal
Port "qr-accfb1df-cc"
tag: 1
Interface "qr-accfb1df-cc"
type: internal
Port "tapfc6ec33e-66"
tag: 3
Interface "tapfc6ec33e-66"
type: internal
Bridge br-tun
fail_mode: secure
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port "vxlan-0afe1927"
Interface "vxlan-0afe1927"
type: vxlan
options: {df_default="false", in_key=flow, local_ip="10.254.25.41", out_key=flow, remote_ip="10.254.25.39"}
Port "vxlan-0afe192b"
Interface "vxlan-0afe192b"
type: vxlan
options: {df_default="false", in_key=flow, local_ip="10.254.25.41", out_key=flow, remote_ip="10.254.25.43"}
Port "vxlan-0afe192c"
Interface "vxlan-0afe192c"
type: vxlan
options: {df_default="false", in_key=flow, local_ip="10.254.25.41", out_key=flow, remote_ip="10.254.25.44"}
Port br-tun
Interface br-tun
type: internal
Bridge br-svc
Port phy-br-svc
Interface phy-br-svc
type: patch
options: {peer=int-br-svc}
Port br-svc
Interface br-svc
type: internal
Port "vlan1273"
Interface "vlan1273"
ovs_version: "2.3.0"
Gather the firewall configuration
iptables -L
root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
neutron-openvswi-INPUT all -- anywhere anywhere
nova-api-INPUT all -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere tcp dpt:1993
ACCEPT tcp -- anywhere anywhere tcp dpt:21131
ACCEPT tcp -- anywhere anywhere tcp dpt:6080
ACCEPT tcp -- anywhere anywhere tcp dpt:8775
ACCEPT tcp -- anywhere anywhere tcp dpt:8774
ACCEPT tcp -- anywhere anywhere tcp dpt:8000
ACCEPT tcp -- anywhere anywhere tcp dpt:8003
ACCEPT tcp -- anywhere anywhere tcp dpt:8004
ACCEPT tcp -- anywhere anywhere tcp dpt:https
ACCEPT tcp -- anywhere anywhere tcp dpt:5000
ACCEPT tcp -- anywhere anywhere tcp dpt:35357
ACCEPT tcp -- anywhere anywhere tcp dpt:14000
ACCEPT tcp -- anywhere anywhere multiport dports epmd,61000
ACCEPT tcp -- anywhere anywhere multiport dports 5900:5999
ACCEPT tcp -- anywhere anywhere multiport dports 6080
ACCEPT tcp -- anywhere anywhere tcp dpt:amqps
ACCEPT tcp -- anywhere anywhere tcp dpt:rmqchk
ACCEPT tcp -- anywhere anywhere tcp dpt:amqp
ACCEPT tcp -- anywhere anywhere multiport dports 8774,8775
ACCEPT tcp -- anywhere anywhere tcp dpt:9501
ACCEPT tcp -- anywhere anywhere tcp dpt:mysqlchk
ACCEPT tcp -- anywhere anywhere tcp dpt:mysql
ACCEPT tcp -- anywhere anywhere tcp dpt:4444
ACCEPT tcp -- anywhere anywhere tcp dpt:4568
ACCEPT tcp -- anywhere anywhere tcp dpt:4567
ACCEPT tcp -- anywhere anywhere multiport dports 5000,35357
ACCEPT tcp -- anywhere anywhere multiport dports http,https
ACCEPT tcp -- anywhere anywhere multiport dports 8000,8003,8004
ACCEPT tcp -- anywhere anywhere tcp dpt:9191
ACCEPT tcp -- anywhere anywhere tcp dpt:9292
ACCEPT udp -- anywhere anywhere udp dpt:tftp
ACCEPT tcp -- anywhere anywhere tcp dpt:9696
ACCEPT tcp -- anywhere anywhere tcp dpt:8777
ACCEPT tcp -- anywhere anywhere tcp dpt:iscsi-target
ACCEPT tcp -- anywhere anywhere tcp dpt:8776
ACCEPT tcp -- anywhere anywhere tcp dpt:6556
ACCEPT tcp -- anywhere anywhere tcp dpt:http-alt
ACCEPT all -- anywhere anywhere PKTTYPE = multicast
ACCEPT udp -- anywhere anywhere udp dpt:4789
ACCEPT all -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere tcp dpt:ssh
ACCEPT udp -- anywhere anywhere udp dpt:ntp
ACCEPT tcp -- anywhere anywhere tcp dpt:sunrpc
ACCEPT udp -- anywhere anywhere udp dpt:sunrpc
ACCEPT tcp -- anywhere anywhere multiport dports domain,953
ACCEPT udp -- anywhere anywhere multiport dports domain,953
ACCEPT tcp -- anywhere anywhere tcp dpt:nfs
ACCEPT udp -- anywhere anywhere udp dpt:nfs
ACCEPT udp -- anywhere anywhere udp dpt:bootpc
ACCEPT udp -- anywhere anywhere udp dpt:bootps
ACCEPT tcp -- anywhere anywhere tcp dpt:27410
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT icmp -- anywhere anywhere icmp echo-request state NEW,RELATED,ESTABLISHED
DROP all -- anywhere anywhere
Chain FORWARD (policy ACCEPT)
target prot opt source destination
neutron-filter-top all -- anywhere anywhere
neutron-openvswi-FORWARD all -- anywhere anywhere
nova-filter-top all -- anywhere anywhere
nova-api-FORWARD all -- anywhere anywhere
ACCEPT all -- anywhere 192.168.122.0/24
ACCEPT all -- anywhere 192.0.2.0/24
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
neutron-filter-top all -- anywhere anywhere
neutron-openvswi-OUTPUT all -- anywhere anywhere
nova-filter-top all -- anywhere anywhere
nova-api-OUTPUT all -- anywhere anywhere
ACCEPT icmp -- anywhere anywhere icmp echo-reply state RELATED,ESTABLISHED
Chain neutron-filter-top (2 references)
target prot opt source destination
neutron-openvswi-local all -- anywhere anywhere
Chain neutron-openvswi-FORWARD (1 references)
target prot opt source destination
Chain neutron-openvswi-INPUT (1 references)
target prot opt source destination
Chain neutron-openvswi-OUTPUT (1 references)
target prot opt source destination
Chain neutron-openvswi-local (1 references)
target prot opt source destination
Chain neutron-openvswi-sg-chain (0 references)
target prot opt source destination
Chain neutron-openvswi-sg-fallback (0 references)
target prot opt source destination
DROP all -- anywhere anywhere
Chain nova-api-FORWARD (1 references)
target prot opt source destination
Chain nova-api-INPUT (1 references)
target prot opt source destination
ACCEPT tcp -- anywhere overcloud-ce-controller-controller0-dlmy4f5tbc5d tcp dpt:8775
Chain nova-api-OUTPUT (1 references)
target prot opt source destination
Chain nova-api-local (1 references)
target prot opt source destination
Chain nova-filter-top (2 references)
target prot opt source destination
nova-api-local all -- anywhere anywhere
Check the network interfaces
ifconfig
root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# ifconfig
br-svc Link encap:Ethernet HWaddr 00:17:a4:77:c4:4c
inet6 addr: fe80::217:a4ff:fe77:c44c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2772493 errors:0 dropped:0 overruns:0 frame:0
TX packets:46102 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:290319675 (276.8 MiB) TX bytes:16179642 (15.4 MiB)
eth0 Link encap:Ethernet HWaddr 00:17:a4:77:c4:4c
inet addr:10.254.25.41 Bcast:10.254.25.255 Mask:255.255.255.0
inet6 addr: fe80::217:a4ff:fe77:c44c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1523742964 errors:0 dropped:0 overruns:0 frame:0
TX packets:1790497085 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:726306267812 (676.4 GiB) TX bytes:1050402770254 (978.2 GiB)
eth1 Link encap:Ethernet HWaddr 00:17:a4:77:c4:4e
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
eth2 Link encap:Ethernet HWaddr a0:48:1c:e3:76:d8
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
eth3 Link encap:Ethernet HWaddr a0:48:1c:e3:76:dc
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1945047763 errors:0 dropped:0 overruns:0 frame:0
TX packets:1945047763 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:602522625790 (561.1 GiB) TX bytes:602522625790 (561.1 GiB)
vlan1273 Link encap:Ethernet HWaddr 00:17:a4:77:c4:4c
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4256076 errors:0 dropped:0 overruns:0 frame:0
TX packets:49957 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:328535584 (313.3 MiB) TX bytes:16677363 (15.9 MiB)
vlan1274 Link encap:Ethernet HWaddr 00:17:a4:77:c4:4c
inet6 addr: fe80::217:a4ff:fe77:c44c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4177709 errors:0 dropped:0 overruns:0 frame:0
TX packets:112156 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:581570315 (554.6 MiB) TX bytes:7187715 (6.8 MiB)
Check the routing configuration
route -n
root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.254.25.1 0.0.0.0 UG 0 0 0 eth0
10.254.25.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.169.254 10.254.25.14 255.255.255.255 UGH 0 0 0 eth0
Sometimes itβs useful to get the arp table too
arp -an
root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# arp -an
? (10.254.25.1) at 00:00:0c:9f:f4:f8 [ether] on eth0
? (10.254.25.43) at 00:17:a4:77:c4:58 [ether] on eth0
? (10.254.25.12) at 00:17:a4:77:c4:3c [ether] on eth0
? (10.254.25.35) at 00:17:a4:77:c4:48 [ether] on eth0
? (10.254.25.42) at 00:17:a4:77:c4:50 [ether] on eth0
? (10.254.25.39) at 00:17:a4:77:c4:40 [ether] on eth0
? (10.254.25.38) at 00:17:a4:77:c4:48 [ether] on eth0
? (10.254.25.3) at 00:2a:6a:8b:88:43 [ether] on eth0
? (10.254.25.14) at 00:17:a4:77:c4:44 [ether] on eth0
? (10.254.25.40) at 00:17:a4:77:c4:54 [ether] on eth0
? (10.254.25.2) at 00:2a:6a:8b:8a:43 [ether] on eth0
? (10.254.25.44) at 00:17:a4:77:c4:f2 [ether] on eth0
? (10.254.25.250) at 2c:59:e5:95:0d:ae [ether] on eth0
? (10.254.25.13) at 00:56:31:33:8d:a1 [ether] on eth0
Check what network namespaces are configured
ip netns
root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# ip netns
qrouter-6903d563-80f4-40b0-ba77-8774a915a323
qdhcp-e99f2cdd-eb42-4466-9b17-7cb85636c013
qdhcp-73ff3b91-77ad-4ef4-aa67-a99a5ef57650
snat-8497d1cb-c2fa-46a5-9e42-1bfceb810204
qrouter-8497d1cb-c2fa-46a5-9e42-1bfceb810204
qdhcp-e70da3b0-ad8d-4ec0-9dd7-40ba563d2416
qdhcp-4259ab26-a1c4-427e-a7e0-b941368c4e23
snat-64b856f2-00a7-4e2f-8abd-aa34ab454c34
qrouter-64b856f2-00a7-4e2f-8abd-aa34ab454c34
Sometimes itβs useful to get the arp table too
If youβre trying to debug an OpenStack issue then gather the same details above for all controller and compute nodes.
The next post will cover North-South Fixed IP Traffic Flow
Originally published on allthingscloud.eu (2015-11-25).