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  • 在CentOS上部署多节点Citus集群

    1 在所有节点执行以下步骤

    Step 01 添加Citus Repostory

    # Add Citus repository for package manager
    curl https://install.citusdata.com/community/rpm.sh | sudo bash

    Step 02 安装Citus并且初始化DB

    # install PostgreSQL with Citus extension
    sudo yum install -y citus72_10
    # initialize system database (using RHEL 6 vs 7 method as necessary)
    sudo service postgresql-10 initdb || sudo /usr/pgsql-10/bin/postgresql-10-setup initdb
    # preload citus extension
    echo "shared_preload_libraries = 'citus'" | sudo tee -a /var/lib/pgsql/10/data/postgresql.conf

    Step 03 配置postgresql.conf

    sudo vi /var/lib/pgsql/10/data/postgresql.conf
    # Uncomment listen_addresses for the changes to take effect
    listen_addresses = '*'

    Step 04 配置pg_hba.conf

    sudo vi /var/lib/pgsql/10/data/pg_hba.conf
    local   all             all                                          peer      
    local replication all peer
    host all all
    192.168.99.1/24 trust
    host all all 0.0.0.0/0 md5

    Step 05 配置防火墙

      查看

    firewall-cmd --zone=public --query-port=5432/tcp

      添加5432端口(--permanent永久生效,没有此参数重启后失效)

    firewall-cmd --zone=public --add-port=5432/tcp --permanent

      重新载入

    firewall-cmd --reload

    Step 06 启动服务

    # start the db server
    sudo service postgresql-10 restart
    # and make it start automatically when computer does
    sudo chkconfig postgresql-10 on

    Step 07 给需要的数据库安装Citus扩展

    sudo -i -u postgres psql -c "CREATE EXTENSION citus;"

    Step 08 设置密码

    postgres=# password postgres          #给postgres用户设置密码
    Enter new password: 
    Enter it again: 

    2 在coordinator节点额外执行以下步骤

    Step 01 添加worker节点信息

      添加worker节点的IP地址(或者DNS名称)和端口号到pg_dist_node表。

    sudo -i -u postgres psql -c "SELECT * from master_add_node('192.168.99.101', 5432);"
    sudo -i -u postgres psql -c "SELECT * from master_add_node('192.168.99.102', 5432);"

    Step 02 验证安装是否成功

    sudo -i -u postgres psql -c "SELECT * FROM master_get_active_worker_nodes();"

    Step 03 开始使用

    sudo -i -u postgres psql

     参考资料:

      https://docs.citusdata.com/en/v7.2/installation/production_rhel.html

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  • 原文地址:https://www.cnblogs.com/MeteorSeed/p/8465536.html
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