diff --git a/content/chinese/news/images/news-post-24-2.png b/content/chinese/news/images/news-post-24-2.png new file mode 100644 index 0000000..9b22463 Binary files /dev/null and b/content/chinese/news/images/news-post-24-2.png differ diff --git a/content/chinese/news/news-post-24.md b/content/chinese/news/news-post-24.md index bf52912..172900f 100644 --- a/content/chinese/news/news-post-24.md +++ b/content/chinese/news/news-post-24.md @@ -35,6 +35,7 @@ Running: datanode master dn002 集群信息如下： +
三、添加DN节点 -------------- @@ -47,48 +48,118 @@ Running: datanode master dn002 * 在新的 DN 节点上，创建必要的目录结构并设置权限： - # 创建数据目录mkdir -p /data/opentenbase/data/dn003 mkdir -p /data/opentenbase/installchown -R opentenbase:opentenbase /data/opentenbase # 创建 opentenbase 用户useradd -d /data/opentenbase -s /bin/bash -m opentenbase # 设置密码passwd opentenbase + ``` + # 创建数据目录 + mkdir -p /data/opentenbase/data/dn003 + mkdir -p /data/opentenbase/install + chown -R opentenbase:opentenbase/data/opentenbase + + + # 创建 opentenbase 用户 + useradd -d /data/opentenbase -s /bin/bash -m opentenbase + + # 设置密码 + passwd opentenbase + ``` ### 3.2. 配置opentenbase环境变量 -[opentenbase]$ vim ~/.bashrcexport OPENTENBASE_HOME=/data/opentenbase/install/opentenbase_bin_v2.6export PATH=$OPENTENBASE_HOME/bin:$PATHexport LD_LIBRARY_PATH=$OPENTENBASE_HOME/lib:${LD_LIBRARY_PATH}export LC_ALL=C +``` +[opentenbase] +$ vim ~/.bashrc +export OPENTENBASE_HOME=/data/opentenbase/install/opentenbase_bin_v2.6 +export PATH=$OPENTENBASE_HOME/bin:OPENTENBASEHOME/bin:$PATH +export LD_LIBRARY_PATH=$OPENTENBASE_HOME/lib:OPENTENBASEHOME/lib:${LD_LIBRARY_PATH} +export LC_ALL=C +``` + ### 3.3. 分发二进制文件 将 OpenTenBase 的二进制文件分发到新的 DN 节点。 * 管控节点192.168.2.136分发软件包 - [opentenbase]pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf deploy 192.168.2.138 +``` +[opentenbase] +pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf +deploy 192.168.2.138 +``` ### 3.4. 配置 SSH 互信 确保现有的集群节点可以无密码访问新的 DN 节点： -# 生成 SSH 密钥对（如果还没有）ssh-keygen -t rsa # 将公钥复制到新的 DN 节点ssh-copy-id -i ~/.ssh/id_rsa.pub opentenbase@192.168.2.138 +``` +# 生成 SSH 密钥对（如果还没有） +ssh-keygen -t rsa + +# 将公钥复制到新的 DN 节点 +ssh-copy-id -i ~/.ssh/id_rsa.pub opentenbase@192.168.2.138 +``` + ### 3.5 添加dn003节点 -pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf PGXCadd datanode master dn003 192.168.2.138 40004 20012 /data/opentenbase/data/dn003 none none none none +``` +pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf +PGXC +add datanode master dn003 192.168.2.138 40004 20012 /data/opentenbase/data/dn003 none none none none +``` + ### 3.6 节点操作补充(不用执行) 1）初始化新的 DN 节点 -[opentenbase]pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf PGXCinit datanode dn003 +``` +[opentenbase] +pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf +PGXC +init datanode dn003 +``` + 2）启动新的 DN 节点 使用 pgxc_ctl 工具启动新的 DN 节点： -[opentenbase]pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf PGXCstart datanode dn003 +``` +[opentenbase] +pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf +PGXC +start datanode dn003 +``` + 3）移除DN节点 使用 pgxc_ctl 工具移除新的 DN 节点： -[opentenbase]pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf PGXCremove datanode master dn003 clean +``` +[opentenbase] +pgxc_ctl -c /data/opentenbase/pgxc_ctl/pgxc_ctl.conf +PGXC +remove datanode master dn003 clean +``` + 四. 验证 -------- 新增的 DN 节点连接到任意一个协调节点（CN），验证新的 DN 节点是否已经成功加入集群： -[opentenbase@db1 ~]$ psql -h 192.168.2.136 -p 30004 -d postgres -U opentenbasepsql (PostgreSQL 10.0 OpenTenBase V2)Type "help" for help.postgres=# select * from pgxc_node; node_name | node_type | node_port | node_host | nodeis_primary | nodeis_preferred | node_id | node_cluster_name -----------+-----------+-----------+---------------+----------------+------------------+-------------+--------------------- gtm | G | 50001 | 192.168.2.136 | t | f | 428125959 | opentenbase_cluster cn001 | C | 30004 | 192.168.2.136 | f | f | -264077367 | opentenbase_cluster cn002 | C | 30004 | 192.168.2.137 | f | f | -674870440 | opentenbase_cluster dn001 | D | 40004 | 192.168.2.136 | t | t | 2142761564 | opentenbase_cluster dn002 | D | 40004 | 192.168.2.137 | f | f | -17499968 | opentenbase_cluster dn003 | D | 40004 | 192.168.2.138 | f | f | -1956435056 | opentenbase_cluster(6 rows) +``` +[opentenbase@db1 ~]$ psql -h 192.168.2.136 -p 30004 -d postgres -U opentenbase +psql (PostgreSQL 10.0 OpenTenBase V2) +Type "help" for help. +postgres=# select * from pgxc_node; +node_name | node_type | node_port | node_host | nodeis_primary | nodeis_preferred | node_id | node_cluster_name +-----------+-----------+-----------+---------------+----------------+------------------+-------------+--------------------- +gtm | G | 50001 | 192.168.2.136 | t | f | 428125959 | opentenbase_cluster +cn001 | C | 30004 | 192.168.2.136 | f | f | -264077367 | opentenbase_cluster +cn002 | C | 30004 | 192.168.2.137 | f | f | -674870440 | opentenbase_cluster +dn001 | D | 40004 | 192.168.2.136 | t | t | 2142761564 | opentenbase_cluster +dn002 | D | 40004 | 192.168.2.137 | f | f | -17499968 | opentenbase_cluster +dn003 | D | 40004 | 192.168.2.138 | f | f | -1956435056 | opentenbase_cluster +(6 rows) +``` + + 五、总结 --------