34J-3_4 corosync集群配置精讲

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34J-3_4 corosync集群配置精讲

2024-08-14 11:01:02 221人阅读

配置环境

NFS： 192.168.1.121 CentOS6.7

Node1:192.168.1.131 CentOS7.2

Node2:192.168.1.132 CentOS7.2

Node3:192.168.1.133 CentOS7.2

配置前准备

[root@node1 ~]# cat /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.1.131 node1

192.168.1.132 node2

[root@node1 ~]# ssh-keygen -t rsa -P ‘‘

[root@node1 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub node1

[root@node1 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub node2

[root@node1 ~]# yum -y install ansible

[root@node1 ~]# vim /etc/ansible/hosts

[ha]

192.168.1.131

192.168.1.132

03 corosync集群配置精讲

Node1、Node2和node3

# yum -y install corosync pacemaker

[root@node1 ~]# cd /etc/corosync/

[root@node1 corosync]# cp corosync.conf.example corosync.conf

[root@node1 corosync]# vim corosync.conf

修改

crypto_cipher: none

crypto_hash: none

为

crypto_cipher: aes128

crypto_hash: sha1

setauth: on

修改

bindnetaddr: 192.168.1.0

为

bindnetaddr: 192.168.1.0 #设定本地网络，本示例不需要修改

在logging程序段之前添加

nodelist {

node {

ring0_addr: 192.168.1.131

nodeid: 1

}

node {

ring0_addr: 192.168.1.132

nodeid: 2

}

node {

ring0_addr: 192.168.1.133

nodeid: 3

}

corosync.conf文件

[root@node1 corosync]# grep -v "^[[:space:]]*#" corosync.conf

totem {

version: 2

crypto_cipher: aes128

crypto_hash: sha1

setauth: on

interface {

ringnumber: 0

bindnetaddr: 192.168.1.0

mcastaddr: 239.255.1.1

mcastport: 5405

ttl: 1

}

nodelist {

node {

ring0_addr: 192.168.1.131

nodeid: 1

}

node {

ring0_addr: 192.168.1.132

nodeid: 2

}

node {

ring0_addr: 192.168.1.133

nodeid: 3

}

logging {

fileline: off

to_stderr: no

to_logfile: yes

logfile: /var/log/cluster/corosync.log

to_syslog: no

debug: off

timestamp: on

logger_subsys {

subsys: QUORUM

debug: off

}

quorum {

provider: corosync_votequorum

}

生成认证文件

[root@node1 corosync]# corosync-keygen

认证文件

[root@node1 corosync]# ll

total 20

-r-------- 1 root root 128 Sep 22 13:46 authkey

[root@node1 corosync]# scp -p authkey corosync.conf node2:/etc/corosync/

[root@node1 corosync]# scp -p authkey corosync.conf node3:/etc/corosync/

[root@node1 corosync]# systemctl start corosync.service

[root@node2 corosync]# systemctl start corosync.service

[root@node3 ~]# systemctl start corosync.service

查看日志

[root@node2 corosync]# tail -f /var/log/cluster/corosync.log

Sep 22 16:23:01 [36631] node2 corosync notice [TOTEM ] A new membership (192.168.1.132:4) was formed. Members joined: 2

Sep 22 16:23:01 [36631] node2 corosync notice [QUORUM] Members[1]: 2

Sep 22 16:23:01 [36631] node2 corosync notice [MAIN ] Completed service synchronization, ready to provide service.

Sep 22 16:23:01 [36631] node2 corosync notice [TOTEM ] A new membership (192.168.1.131:8) was formed. Members joined: 1

Sep 22 16:23:01 [36631] node2 corosync notice [QUORUM] This node is within the primary component and will provide service.

Sep 22 16:23:01 [36631] node2 corosync notice [QUORUM] Members[2]: 1 2

Sep 22 16:23:01 [36631] node2 corosync notice [MAIN ] Completed service synchronization, ready to provide service.

Sep 22 16:23:09 [36631] node2 corosync notice [TOTEM ] A new membership (192.168.1.131:12) was formed. Members joined: 3

Sep 22 16:23:09 [36631] node2 corosync notice [QUORUM] Members[3]: 1 2 3

Sep 22 16:23:09 [36631] node2 corosync notice [MAIN ] Completed service synchronization, ready to provide service.

[root@node1 corosync]# vim /etc/sysconfig/pacemaker

去掉

PCMK_logfile=/var/log/pacemaker.log

前面的#号

[root@node1 corosync]# systemctl start pacemaker.service

[root@node2 corosync]# systemctl start pacemaker.service

[root@node3 corosync]# systemctl start pacemaker.service

[root@node2 corosync]# crm_mon

Last updated: Thu Sep 22 16:47:06 2016 Last change: Thu Sep 22 16:43:05 2016 by hacluster via crmd on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 0 resources configured

Online: [ node1 node2 node3 ]

至此集群配置完成，下面开始配置资源

[root@node1 ~]# ls *rpm

crmsh-2.1.4-1.1.x86_64.rpm pssh-2.3.1-4.2.x86_64.rpm python-pssh-2.3.1-4.2.x86_64.rpm

[root@node1 ~]# yum -y install *rpm

[root@node1 ~]# crm

crm(live)#

HA Web Service:

vip: 172.16.1.80, ocf:heartbeat:IPaddr

httpd: systemd

nfs shared storage: ocf:heartbeat:Filesystem

[root@NFS ~]# mkdir /www/htdocs -pv

[root@NFS ~]# echo "<h1>Test Page on NFS Server</h1>" > /www/htdocs/index.html

[root@NFS ~]# vim /etc/exports

/www/htdocs 192.168.1.0/24(rw)

[root@NFS ~]# service nfsd start

Node1、Node2和node3

# yum -y install httpd

# mount -t nfs 192.168.1.121:/www/htdocs /var/www/html/

# systemctl start httpd.service

# systemctl stop httpd.service

# systemctl enable httpd.service

# umount /var/www/html/

错误：

[root@node1 ~]# crm_verify -L -V

error: unpack_resources: Resource start-up disabled since no STONITH resources have been defined

error: unpack_resources: Either configure some or disable STONITH with the stonith-enabled option

error: unpack_resources: NOTE: Clusters with shared data need STONITH to ensure data integrity

Errors found during check: config not valid

解决方法：

[root@node1 ~]# crm

crm(live)# configure property stonith-enabled=false

crm(live)# configure commit

INFO: apparently there is nothing to commit

INFO: try changing something first

crm(live)# configure

crm(live)configure# show

node 1: node1

node 2: node2

node 3: node3

property cib-bootstrap-options: \

have-watchdog=false \

dc-version=1.1.13-10.el7_2.4-44eb2dd \

cluster-infrastructure=corosync \

stonith-watchdog-timeout=false \

stonith-enabled=false

[root@node1 ~]# crm configure

crm(live)configure# primitive webip ocf:heartbeat:IPaddr2 params ip="192.168.1.80" op monitor interval=30s timeout=20s

crm(live)configure# verify

crm(live)configure# show

node 1: node1

node 2: node2

node 3: node3

primitive webip IPaddr2 \

params ip=192.168.1.80 \

op monitor interval=30s timeout=20s

property cib-bootstrap-options: \

have-watchdog=false \

dc-version=1.1.13-10.el7_2.4-44eb2dd \

cluster-infrastructure=corosync \

stonith-watchdog-timeout=false \

stonith-enabled=false

crm(live)configure# delete webip

crm(live)configure# show

node 1: node1

node 2: node2

node 3: node3

property cib-bootstrap-options: \

have-watchdog=false \

dc-version=1.1.13-10.el7_2.4-44eb2dd \

cluster-infrastructure=corosync \

stonith-watchdog-timeout=false \

stonith-enabled=false

crm(live)configure# primitive webip ocf:heartbeat:IPaddr2 params ip="192.168.1.80" op monitor interval=20scrm(live)configure# primitive webip ocf:heartbeat:IPaddr2 params ip="192.168.1.80" op monitor interval=20s timeout=10s

crm(live)configure# verify

WARNING: webip: specified timeout 10s for monitor is smaller than the advised 20s timeout=10s

crm(live)configure# edit

node 1: node1

node 2: node2

node 3: node3

primitive webip IPaddr2 \

params ip=192.168.1.80 \

op monitor interval=20s timeout=20s

property cib-bootstrap-options: \

have-watchdog=false \

dc-version=1.1.13-10.el7_2.4-44eb2dd \

cluster-infrastructure=corosync \

stonith-watchdog-timeout=false \

stonith-enabled=false

# vim: set filetype=pcmk:

crm(live)configure# verify

crm(live)configure# primitive webserver systemd:httpd op monitor interval=20s timeout=20scrm(live)configure# verify

crm(live)configure# primitive webstore ocf:heartbeat:Filesystem params device="192.168.1.121:/www/htdocs" directory="/var/www/html" fstype="nfs" op start timeout=60s op stop timeout=60s op monitor interval=20s timeout=40s

crm(live)configure# verify

crm(live)configure# colocation web_server_with_webstore_and_webip inf: webserver ( webip webstore )

crm(live)configure# verify

crm(live)configure# show

node 1: node1

node 2: node2

node 3: node3

primitive webip IPaddr2 \

params ip=192.168.1.80 \

op monitor interval=20s timeout=20s

primitive webserver systemd:httpd \

op monitor interval=20s timeout=20s

primitive webstore Filesystem \

params device="192.168.1.121:/www/htdocs" directory="/var/www/html" fstype=nfs \

op start timeout=60s interval=0 \

op stop timeout=60s interval=0 \

op monitor interval=20s timeout=40s

colocation web_server_with_webstore_and_webip inf: webserver ( webip webstore )

property cib-bootstrap-options: \

have-watchdog=false \

dc-version=1.1.13-10.el7_2.4-44eb2dd \

cluster-infrastructure=corosync \

stonith-watchdog-timeout=false \

stonith-enabled=false

crm(live)configure# order webstore_after_webip Mandatory: webip webstore

crm(live)configure# order webserver_after_webstore Mandatory: webstore webserver

crm(live)configure# verify

crm(live)configure# commit

crm(live)configure# cd

crm(live)# status

Last updated: Fri Sep 23 09:35:56 2016 Last change: Fri Sep 23 09:35:34 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Online: [ node1 node2 node3 ]

[root@node1 ~]# crm node standby

[root@node1 ~]# crm status

Last updated: Fri Sep 23 09:43:31 2016 Last change: Fri Sep 23 09:42:45 2016 by root via crm_attribute on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Node node1: standby

Online: [ node2 node3 ]

[root@node1 ~]# crm node online

crm(live)configure# location webservice_pref_node1 webip 100: node1

crm(live)configure# verify

crm(live)configure# commit

crm(live)# status

Last updated: Fri Sep 23 09:52:47 2016 Last change: Fri Sep 23 09:51:33 2016 by root via crm_attribute on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Online: [ node1 node2 node3 ]

crm(live)configure# property default-resource-stickiness=50

crm(live)configure# commit

crm(live)configure# cd

crm(live)# node standby

crm(live)# status

Last updated: Fri Sep 23 09:56:48 2016 Last change: Fri Sep 23 09:56:41 2016 by root via crm_attribute on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Node node1: standby

Online: [ node2 node3 ]

crm(live)# node online

crm(live)# status

Last updated: Fri Sep 23 09:57:04 2016 Last change: Fri Sep 23 09:57:02 2016 by root via crm_attribute on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Online: [ node1 node2 node3 ]

04 corosync集群配置-配置示例

清空集群配置

crm(live)configure# edit

删除后的资料如下所示：

node 1: node1 \

attributes standby=off

node 2: node2

node 3: node3

property cib-bootstrap-options: \

have-watchdog=false \

dc-version=1.1.13-10.el7_2.4-44eb2dd \

cluster-infrastructure=corosync \

stonith-watchdog-timeout=false \

stonith-enabled=false \

default-resource-stickiness=50

# vim: set filetype=pcmk:

crm(live)configure# verify

crm(live)configure# commit

crm(live)configure# cd

crm(live)# status

Last updated: Fri Sep 23 11:07:47 2016 Last change: Fri Sep 23 11:07:04 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 0 resources configured

Online: [ node1 node2 node3 ]

Node1、Node2和node3

# yum -y install pcs

# systemctl start pcsd.service

[root@node1 ~]# vim /etc/ansible/hosts

[ha]

192.168.1.131

192.168.1.132

192.168.1.133

[root@node1 ~]# ansible ha -m shell -a ‘echo mageedu | passwd --stdin hacluster‘

[root@node1 ~]# pcs cluster auth node1 node2 node3

Username: hacluster

Password:

node1: Authorized

node3: Authorized

node2: Authorized

[root@node1 ~]# pcs status

Cluster name:

WARNING: corosync and pacemaker node names do not match (IPs used in setup?)

Last updated: Fri Sep 23 12:17:48 2016 Last change: Fri Sep 23 11:07:04 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 0 resources configured

Online: [ node1 node2 node3 ]

Full list of resources:

PCSD Status:

node1 (192.168.1.131): Unable to authenticate

node2 (192.168.1.132): Unable to authenticate

node3 (192.168.1.133): Unable to authenticate

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

# vim /etc/corosync/corosync.conf

修改

setauth: on

为

setauth: off

[root@node1 ~]# ansible ha -m service -a ‘name=corosync state=restarted‘192.168.1.131 | SUCCESS => {

"changed": true,

"name": "corosync",

"state": "started"

}

192.168.1.132 | SUCCESS => {

"changed": true,

"name": "corosync",

"state": "started"

}

192.168.1.133 | SUCCESS => {

"changed": true,

"name": "corosync",

"state": "started"

}

[root@node1 ~]# ansible ha -m service -a ‘name=pacemaker state=stopped‘

[root@node1 ~]# ansible ha -m service -a ‘name=corosync state=stoppedd‘

[root@node1 ~]# pcs cluster setup --name=mycluster node1 node2 node3 --force

[root@node1 ~]# pcs cluster start --all

[root@node1 ~]# corosync-cfgtool -s

Printing ring status.

Local node ID 1

RING ID 0

id = 192.168.1.131

status = ring 0 active with no faults

[root@node1 ~]# pcs resource create webip ocf:heartbeat:IPaddr ip="192.168.1.80" op monitor interval=20s timeout=10s

[root@node1 ~]# pcs status

Cluster name: mycluster

Last updated: Fri Sep 23 12:40:55 2016 Last change: Fri Sep 23 12:40:29 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 1 resource configured

Online: [ node1 ]

OFFLINE: [ node2 node3 ]

Full list of resources:

webip (ocf::heartbeat:IPaddr): Started node1

PCSD Status:

node1: Online

node2: Online

node3: Online

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

[root@node1 ~]# pcs resource delete webip

[root@node1 ~]# pcs status

Cluster name: mycluster

Last updated: Fri Sep 23 12:44:06 2016 Last change: Fri Sep 23 12:43:20 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 0 resources configured

Online: [ node1 ]

OFFLINE: [ node2 node3 ]

Full list of resources:

PCSD Status:

node1: Online

node2: Online

node3: Online

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

[root@node1 ~]# pcs resource create webip ocf:heartbeat:IPaddr ip="192.168.1.80" op monitor interval=20s timeout=10s

[root@node1 ~]# pcs resource create webstore ocf:heartbeat:Filesystem device="192.168.1.121:/www/htdocs" directory="/var/www/html" fstype="nfs" op start timeout=60s op stop timeout=60s op monitor interval=20s timeout=40s

[root@node1 ~]# pcs status

Cluster name: mycluster

Last updated: Fri Sep 23 12:54:11 2016 Last change: Fri Sep 23 12:51:33 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 2 resources configured

Online: [ node1 ]

OFFLINE: [ node2 node3 ]

Full list of resources:

webip (ocf::heartbeat:IPaddr): Started node1

webstore (ocf::heartbeat:Filesystem): Started node1

PCSD Status:

node1: Online

node2: Online

node3: Online

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

[root@node1 ~]# pcs resource create webserver systemd:httpd op monitor interval=30s timeout=20s

[root@node1 ~]# pcs status

Cluster name: mycluster

Last updated: Fri Sep 23 12:55:56 2016 Last change: Fri Sep 23 12:55:36 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Online: [ node1 ]

OFFLINE: [ node2 node3 ]

Full list of resources:

webip (ocf::heartbeat:IPaddr): Started node1

webstore (ocf::heartbeat:Filesystem): Started node1

webserver (systemd:httpd): Started node1

PCSD Status:

node1: Online

node2: Online

node3: Online

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

[root@node1 ~]# pcs resource group add webservice webip webstore webserver

[root@node1 ~]# pcs status

Cluster name: mycluster

Last updated: Fri Sep 23 12:59:38 2016 Last change: Fri Sep 23 12:59:15 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Online: [ node1 ]

OFFLINE: [ node2 node3 ]

Full list of resources:

Resource Group: webservice

webip (ocf::heartbeat:IPaddr): Started node1

webstore (ocf::heartbeat:Filesystem): Started node1

webserver (systemd:httpd): Started node1

PCSD Status:

node1: Online

node2: Online

node3: Online

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

让node1、node2结点下线

[root@node1 ~]# pcs cluster standby node1

[root@node1 ~]# pcs cluster standby node2

让node1、node2结点上线

[root@node1 ~]# pcs cluster unstandby node1

[root@node1 ~]# pcs cluster unstandby node2

添加约束

[root@node1 ~]# pcs constraint location add webservice_pref_node1 webservice node1 100

[root@node1 ~]# pcs status

Cluster name: mycluster

Last updated: Fri Sep 23 13:22:02 2016 Last change: Fri Sep 23 13:21:24 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Online: [ node1 node2 ]

OFFLINE: [ node3 ]

Full list of resources:

Resource Group: webservice

webip (ocf::heartbeat:IPaddr): Started node1

webstore (ocf::heartbeat:Filesystem): Started node1

webserver (systemd:httpd): Started node1

PCSD Status:

node1: Online

node2: Online

node3: Online

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

[root@node1 ~]# pcs constraint location add webservice_pref_node1 webip node1 INFINITY

[root@node1 ~]# pcs status

Cluster name: mycluster

Last updated: Fri Sep 23 13:24:57 2016 Last change: Fri Sep 23 13:24:21 2016 by root via cibadmin on node1

Stack: corosync

Current DC: node1 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum

3 nodes and 3 resources configured

Online: [ node1 node2 ]

OFFLINE: [ node3 ]

Full list of resources:

Resource Group: webservice

webip (ocf::heartbeat:IPaddr): Started node1

webstore (ocf::heartbeat:Filesystem): Started node1

webserver (systemd:httpd): Started node1

PCSD Status:

node1: Online

node2: Online

node3: Online

Daemon Status:

corosync: active/disabled

pacemaker: active/disabled

pcsd: active/disabled

查看全局属性

[root@node1 ~]# pcs property list --all

本文出自 “追梦” 博客，请务必保留此出处http://sihua.blog.51cto.com/377227/1855699

34J-3_4 corosync集群配置精讲

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