Как подключить к clickhouse внешний словарь mysql?

Question

Артём Александров @kradwhite

https://github.com/kradwhite

Как подключить к clickhouse внешний словарь mysql?

Добавил в файл /etc/clickhouse-server/config.xml

<dictionaries_config>/etc/clickhouse-server/mysql-dictionary.xml</dictionaries_config>
    <dictionaries_lazy_load>false</dictionaries_lazy_load>

Создал файл с настройками словаря /etc/clickhouse-server/mysql-dictionary.xml

<dictionary>
        <name>mysql_user_actions</name> 
        <source>
                <mysql>
                        <port>3306</port>
                        <user>admin</user>
                        <password>passwd</password>
                        <replica>
                                <host>localhost></host>
                                <priority>1</priority>
                        </replica>
                        <db>log</db>
                        <table>user_action</table>
                        <where></where>
                        <invalidate_query>SQL_QUERY</invalidate_query>
                </mysql>
        </source>
        <layout>
                <flat />
        </layout>
        <structure>
                <id>
                        <name>id</name>
                </id>
                <attribute>
                        <name>action_name</name>
                        <type>string</type>
                        <null_value>Неизвестно</null_value>
                </attribute>
        </structure>
        <lifetime>846500</lifetime>
</dictionary>

При попытке использовать словарь в запросе выбрасывается исключение:

:) select datetime, session_id, dictGetString('mysql_user_actions', 'action_name', action_id) as action from user_action group by datetime, session_id, action;

SELECT 
    datetime, 
    session_id, 
    dictGetString('mysql_user_actions', 'action_name', action_id) AS action
FROM user_action 
GROUP BY 
    datetime, 
    session_id, 
    action

Received exception from server (version 18.12.17):
Code: 36. DB::Exception: Received from localhost:9000, 127.0.0.1. DB::Exception: No such external dictionary: mysql_user_actions

Я так понимаю, что он ищет словарь по порту 9000. Т.е. конфиг у меня не правильный. Я брал пример конфига с официальной документации.
В логах сервера есть варнинги по подключению данного словаря как я понимаю.

2018.10.11 10:10:16.266257 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'name', expected 'dictionary'
2018.10.11 10:10:16.266305 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'source', expected 'dictionary'
2018.10.11 10:10:16.266323 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'layout', expected 'dictionary'
2018.10.11 10:10:16.266340 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'structure', expected 'dictionary'
2018.10.11 10:10:16.266357 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'lifetime', expected 'dictionary'
2018.10.11 10:20:16.340788 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'source', expected 'dictionary'
2018.10.11 10:20:16.340831 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'layout', expected 'dictionary'
2018.10.11 10:20:16.340849 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'structure', expected 'dictionary'
2018.10.11 10:20:16.340866 [ 31 ] <Warning> ExternalDictionaries: /etc/clickhouse-server/mysql-dictionary.xml: unknown node in file: 'lifetime', expected 'dictionary'

Как правильно подружить clickhouse и mysql?