当客户端连接clickhouse-server出现异常：ClickHouse exception, code: 516 ，
经过分析错误码：

ClickHouse exception, code: 516, host: 192.168.0.108, port: 8888; Code: 516, e.displayText() = DB::Exception: default: Authentication failed: password is incorrect or there is no user with such name (version 20.9.2.20 (official build))

发现是clickhouse授权问题，需修改clickhouse 配置文件：
1.config.xml中listen_host为：：

2.修改users.xml中

<!-- Users and ACL. -->

<users>

<!-- If user name was not specified, 'default' user is used. -->

<default>

<password>123123</password>

<networks incl="networks" replace="replace">

<ip>::/0</ip>

</networks>

<!-- Settings profile for user. -->

<profile>default</profile>

<!-- Quota for user. -->

<quota>default</quota>

<!-- User can create other users and grant rights to them. -->

<access_management>0</access_management>

</default>

</users>