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[Doc] Update add fe node description (#3100)

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2020-03-13 18:05:09 +08:00
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docs/documentation/cn/installing/install-deploy.md
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@ -254,6 +254,8 @@ FE 分为 Leader，Follower 和 Observer 三种角色。 默认一个集群，
`./bin/start_fe.sh --helper host:port --daemon`
其中 host 为 Leader 所在节点 ip, port 为 Leader 的配置文件 fe.conf 中的 edit_log_port。--helper 参数仅在 follower 和 observer 第一次启动时才需要。
查看 Follower 或 Observer 运行状态。使用 mysql-client 连接到任一已启动的 FE，并执行：SHOW PROC '/frontends'; 可以查看当前已加入集群的 FE 及其对应角色。
> FE 扩容注意事项：

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docs/documentation/en/installing/install-deploy_EN.md
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@ -258,6 +258,8 @@ Configure and start Follower or Observer. Follower and Observer are configured w
`./bin/start_fe.sh --helper host:port --daemon`
The host is the node IP of Leader, and the port is edit\_log\_port in Lead's configuration file fe.conf. The --helper is only required when follower/observer is first startup.
View the status of Follower or Observer. Connect to any booted FE using mysql-client and execute: SHOW PROC'/frontends'; you can view the FE currently joined the cluster and its corresponding roles.
> Notes for FE expansion: