Kilo版Openstack删除一台计算节点

时间 2019-11-12

标签 kilo openstack 删除一台计算节点繁體版

原文原文链接

一、移除计算节点上的ceph osd

中止节点上全部的osd服务node

systemctl stop ceph-osd@20
systemctl stop ceph-osd@21
systemctl stop ceph-osd@22
systemctl stop ceph-osd@23

在mon节点上移除osd数据库

ceph osd out 23
ceph osd out 22
ceph osd out 21
ceph osd out 20
ceph osd crush remove osd.23
ceph osd crush remove osd.22
ceph osd crush remove osd.21
ceph osd crush remove osd.20
ceph auth del osd.23
ceph auth del osd.22
ceph auth del osd.21
ceph auth del osd.20
ceph osd rm 23
ceph osd rm 22
ceph osd rm 21
ceph osd rm 20
ceph osd crush remove bdc8

等待集群自动恢复便可若是配置文件中有对应osd在某台节点上的配置，须要删掉网络

二、移除计算节点上openstack服务

2.一、计算节点上中止服务

systemctl stop neutron-openvswitch-agent.service
systemctl stop openstack-nova-compute.service 
systemctl disable neutron-openvswitch-agent.service
systemctl disable openstack-nova-compute.service

2.二、移除计算服务

查看计算节点服务3d

. admin-openrc.sh 
nova service-list
+----+------------------+------+----------+---------+-------+----------------------------+-----------------+
| Id | Binary           | Host | Zone     | Status  | State | Updated_at                 | Disabled Reason |
+----+------------------+------+----------+---------+-------+----------------------------+-----------------+
| 1  | nova-cert        | bdc2 | internal | enabled | up    | 2018-03-22T02:54:42.000000 | -               |
| 2  | nova-conductor   | bdc2 | internal | enabled | up    | 2018-03-22T02:54:43.000000 | -               |
| 3  | nova-consoleauth | bdc2 | internal | enabled | up    | 2018-03-22T02:54:42.000000 | -               |
| 4  | nova-scheduler   | bdc2 | internal | enabled | up    | 2018-03-22T02:54:40.000000 | -               |
| 5  | nova-compute     | bdc3 | nova     | enabled | up    | 2018-03-22T02:54:41.000000 | -               |
| 6  | nova-compute     | bdc2 | nova     | enabled | up    | 2018-03-22T02:54:45.000000 | -               |
| 7  | nova-compute     | bdc4 | nova     | enabled | up    | 2018-03-22T02:54:42.000000 | -               |
| 8  | nova-compute     | bdc5 | nova     | enabled | up    | 2018-03-22T02:54:44.000000 | -               |
| 9  | nova-compute     | bdc6 | nova     | enabled | up    | 2018-03-22T02:54:44.000000 | -               |
| 10 | nova-compute     | bdc7 | nova     | enabled | up    | 2018-03-22T02:54:46.000000 | -               |
| 11 | nova-compute     | bdc8 | nova     | enabled | up    | 2018-03-22T02:54:39.000000 | -               |
+----+------------------+------+----------+---------+-------+----------------------------+-----------------+

删除bdc8上的计算服务code

nova service-disable 11
nova service-delete 11

元数据库中删除ip

use nova;
select *  from compute_nodes where host='bdc2'\G
delete from compute_nodes where host='bdc2';
select * from services where host='bdc2'\G   
delete from services where host='bdc2';

2.三、移除网络服务

查看网络服务rem

# neutron agent-list

+--------------------------------------+--------------------+------+-------+----------------+---------------------------+
| id                                   | agent_type         | host | alive | admin_state_up | binary                    |
+--------------------------------------+--------------------+------+-------+----------------+---------------------------+
| 08bc9d33-3e67-4a06-9223-74be1c969b8a | Open vSwitch agent | bdc2 | :-)   | True           | neutron-openvswitch-agent |
| 19a31ea2-280b-42b4-9f08-c1f99182e826 | Open vSwitch agent | bdc5 | :-)   | True           | neutron-openvswitch-agent |
| 286336ae-22fd-4391-8470-aae559ee5ccb | DHCP agent         | bdc3 | :-)   | True           | neutron-dhcp-agent        |
| 42ab605e-3d66-402f-b86a-4ef246df2ecf | Open vSwitch agent | bdc8 | :-)   | True           | neutron-openvswitch-agent |
| 4791844d-07f7-43be-8b27-bcfe8d8a7791 | Open vSwitch agent | bdc6 | :-)   | True           | neutron-openvswitch-agent |
| 63c99510-205a-4f94-ac18-61082c6edb44 | L3 agent           | bdc3 | :-)   | True           | neutron-l3-agent          |
| 830a75fb-c516-4f6f-ae74-e09bfd558291 | Open vSwitch agent | bdc7 | :-)   | True           | neutron-openvswitch-agent |
| 91df9210-0a27-4933-9f03-3ccce6192011 | Open vSwitch agent | bdc4 | :-)   | True           | neutron-openvswitch-agent |
| a9f7bc30-beda-437d-92a8-be64296c57d0 | Open vSwitch agent | bdc3 | :-)   | True           | neutron-openvswitch-agent |
| cf6443f7-ef8e-4738-bfc5-e491e4f89aeb | Metadata agent     | bdc3 | :-)   | True           | neutron-metadata-agent    |
+--------------------------------------+--------------------+------+-------+----------------+---------------------------+

删除bdc8上的网络服务it

# neutron agent-delete 42ab605e-3d66-402f-b86a-4ef246df2ecf
Deleted agent: 42ab605e-3d66-402f-b86a-4ef246df2ecf

三、元数据查看

nova库io

MariaDB [nova]> select hypervisor_hostname,deleted_at,deleted from compute_nodes;
+---------------------+---------------------+---------+
| hypervisor_hostname | deleted_at          | deleted |
+---------------------+---------------------+---------+
| bdc3                | NULL                |       0 |
| bdc2                | NULL                |       0 |
| bdc4                | NULL                |       0 |
| bdc5                | NULL                |       0 |
| bdc6                | NULL                |       0 |
| bdc7                | NULL                |       0 |
| bdc8                | 2018-03-22 02:58:53 |       7 |
+---------------------+---------------------+---------+
MariaDB [nova]> select * from services where host = 'bdc8';
+---------------------+---------------------+---------------------+----+------+--------------+---------+--------------+----------+---------+-----------------+
| created_at          | updated_at          | deleted_at          | id | host | binary       | topic   | report_count | disabled | deleted | disabled_reason |
+---------------------+---------------------+---------------------+----+------+--------------+---------+--------------+----------+---------+-----------------+
| 2016-10-13 09:20:41 | 2018-03-22 02:58:49 | 2018-03-22 02:58:53 | 11 | bdc8 | nova-compute | compute |      4442289 |        0 |      11 | NULL            |
+---------------------+---------------------+---------------------+----+------+--------------+---------+--------------+----------+---------+-----------------+

四、删除其它节点与bdc8连通的隧道网络

先在元数据库中删除bdc8的gre信息console

MariaDB [neutron]> select * from ml2_gre_endpoints;   
+-------------+------+
| ip_address  | host |
+-------------+------+
| 172.16.13.2 | bdc2 |
| 172.16.13.3 | bdc3 |
| 172.16.13.4 | bdc4 |
| 172.16.13.5 | bdc5 |
| 172.16.13.6 | bdc6 |
| 172.16.13.7 | bdc7 |
| 172.16.13.8 | bdc8 |
+-------------+------+
MariaDB [neutron]> delete from ml2_gre_endpoints where ip_address='172.16.13.8';

各个节点中删除链接bdc8的gre隧道

# ovs-vsctl show
8d6ea1e1-9b90-4e6b-94ae-d5a04601daf9
    Bridge br-tun
        fail_mode: secure
        Port "gre-ac100d03"
            Interface "gre-ac100d03"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="172.16.13.2", out_key=flow, remote_ip="172.16.13.3"}
        Port "gre-ac100d07"
            Interface "gre-ac100d07"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="172.16.13.2", out_key=flow, remote_ip="172.16.13.7"}
        Port "gre-ac100d08"
            Interface "gre-ac100d08"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="172.16.13.2", out_key=flow, remote_ip="172.16.13.8"}
        Port "gre-ac100d05"
            Interface "gre-ac100d05"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="172.16.13.2", out_key=flow, remote_ip="172.16.13.5"}
        Port "gre-ac100d06"
            Interface "gre-ac100d06"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="172.16.13.2", out_key=flow, remote_ip="172.16.13.6"}
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-ac100d04"
            Interface "gre-ac100d04"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="172.16.13.2", out_key=flow, remote_ip="172.16.13.4"}
        Port br-tun
            Interface br-tun
                type: internal
    Bridge br-int
        fail_mode: secure
        Port "qvo86bf0e09-3f"
            tag: 2
            Interface "qvo86bf0e09-3f"
        Port "qvo73d3f4d9-72"
            tag: 2
            Interface "qvo73d3f4d9-72"
        Port br-int
            Interface br-int
                type: internal
        Port "qvo7c5fbeca-ab"
            tag: 2
            Interface "qvo7c5fbeca-ab"
        Port "qvo2364aa3b-98"
            tag: 4
            Interface "qvo2364aa3b-98"
        Port "qvo0194c615-74"
            tag: 5
            Interface "qvo0194c615-74"
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "qvo4a30d4d8-e3"
            tag: 3
            Interface "qvo4a30d4d8-e3"
        Port "qvo1d912409-ed"
            tag: 2
            Interface "qvo1d912409-ed"
        Port "qvoe79c563d-50"
            tag: 1
            Interface "qvoe79c563d-50"
        Port "qvo4b146bb0-52"
            tag: 3
            Interface "qvo4b146bb0-52"
    ovs_version: "2.5.0"

全部节点上链接bdc8的port同样，全都须要删除

# ovs-vsctl del-port br-tun gre-ac100d08