Kilo版Openstack刪除一臺計算節點

時間 2019-11-12

標籤 kilo openstack 刪除一臺計算節點简体版

原文原文鏈接

一、移除計算節點上的ceph osd

中止節點上全部的osd服務node

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

在mon節點上移除osd數據庫

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

等待集羣自動恢復便可若是配置文件中有對應osd在某臺節點上的配置，須要刪掉網絡

二、移除計算節點上openstack服務

2.一、計算節點上中止服務

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、移除計算服務

查看計算節點服務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 | -               |
+----+------------------+------+----------+---------+-------+----------------------------+-----------------+

刪除bdc8上的計算服務code

nova service-disable 11
nova service-delete 11

元數據庫中刪除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、移除網絡服務

查看網絡服務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    |
+--------------------------------------+--------------------+------+-------+----------------+---------------------------+

刪除bdc8上的網絡服務it

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

三、元數據查看

nova庫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、刪除其它節點與bdc8連通的隧道網絡

先在元數據庫中刪除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';

各個節點中刪除鏈接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"

全部節點上鍊接bdc8的port同樣，全都須要刪除

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

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