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Instalação e configuração do pacemaker
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O Pacemaker é um software gerenciador de recursos de alta disponibilidade de código aberto usado em clusters de computadores desde 2004.
Passo a passo:
* Configurar o arquivo hosts (/etc/hosts)
192.168.0.108 pacemaker01
192.168.0.109 pacemaker02
Instale o Epel Repository
* yum -y install epel-release
Instalar e configurar o Pacemaker, Corosync e Pcsd
* yum -y install corosync pacemaker pcs
* systemctl enable pcsd
* systemctl enable corosync
* systemctl enable pacemaker
* systemctl start pcsd
* passwd hacluster
Criar e configurar o cluster
* pcs cluster auth pacemaker01 pacemaker02
* pcs cluster setup --name teste_cluster pacemaker01 pacemaker02
* pcs cluster start --all
* pcs cluster enable --all
* pcs status cluster
Desative STONITH e ignore a política de quorum
* pcs property set stonith-enabled=false
* pcs property set no-quorum-policy=ignore
* pcs property list
Adicione o IP flutuante e recursos
* pcs resource create virtual_ip ocf:heartbeat:IPaddr2 ip=192.168.0.110 cidr_netmask=32 op monitor interval=30s
* pcs status resources
* pcs cluster stop --all
* pcs cluster start --all
* pcs status resources
* pcs status nodes
Passo a passo:
* Configurar o arquivo hosts (/etc/hosts)
192.168.0.108 pacemaker01
192.168.0.109 pacemaker02
Instale o Epel Repository
* yum -y install epel-release
Instalar e configurar o Pacemaker, Corosync e Pcsd
* yum -y install corosync pacemaker pcs
* systemctl enable pcsd
* systemctl enable corosync
* systemctl enable pacemaker
* systemctl start pcsd
* passwd hacluster
Criar e configurar o cluster
* pcs cluster auth pacemaker01 pacemaker02
* pcs cluster setup --name teste_cluster pacemaker01 pacemaker02
* pcs cluster start --all
* pcs cluster enable --all
* pcs status cluster
Desative STONITH e ignore a política de quorum
* pcs property set stonith-enabled=false
* pcs property set no-quorum-policy=ignore
* pcs property list
Adicione o IP flutuante e recursos
* pcs resource create virtual_ip ocf:heartbeat:IPaddr2 ip=192.168.0.110 cidr_netmask=32 op monitor interval=30s
* pcs status resources
* pcs cluster stop --all
* pcs cluster start --all
* pcs status resources
* pcs status nodes
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