Kyuubi

Use Kyuubi with Doris

Introduction

Apache Kyuubi is a distributed and multi-tenant gateway to provide serverless SQL on Data Warehouses and Lakehouses. Apache Kyuubi is providing varied protocols like Thrift, Trino, MySQL etc., to the engines including Spark, Flink, Hive, JDBC, etc. Doris could be connected as JDBC data source with Doris dialect supported in Apache Kyuubi. Apache Kyuubi also provides a series of useful features including HA, service discovery, unified authentication, engine lifecycle management, etc.

Usage

Download Apache Kyuubi

Download Apache Kyuubi from https://kyuubi.apache.org/zh/releases.html

Get Apache Kyuubi 1.6.0 or above and extract it to folder.

Config Doris as Kyuubi data source

• Update Kyuubi configurations in $KYUUBI_HOME/conf/kyuubi-defaults.conf

kyuubi.engine.type=jdbc
kyuubi.engine.jdbc.type=doris
kyuubi.engine.jdbc.driver.class=com.mysql.cj.jdbc.Driver
kyuubi.engine.jdbc.connection.url=jdbc:mysql://xxx:xxx
kyuubi.engine.jdbc.connection.user=***
kyuubi.engine.jdbc.connection.password=***

Configuration	Description
kyuubi.engine.type	Engine Type, specify to jdbc
kyuubi.engine.jdbc.type	JDBC service type, specify to doris
kyuubi.engine.jdbc.driver.class	JDBC driver class name, specify to com.mysql.cj.jdbc.Driver
kyuubi.engine.jdbc.connection.url	JDBC url to Doris FE
kyuubi.engine.jdbc.connection.user	JDBC username
kyuubi.engine.jdbc.connection.password	JDBC password

• For other configuration in Apache Kyuubi, please refer to Apache Kyuubi Configuration Docs .

Add MySQL JDBC Driver

Copy the Mysql JDBC Driver mysql-connector-j-8.X.X.jar to $KYUUBI_HOME/externals/engines/jdbc.

Start Kyuubi Server

Run $KYUUBI_HOME/bin/kyuubi start. After started, port 10009 by default is listened by Kyuubi Server with Thrift protocol.

Example

The following example shows basic example of querying Doris with Kyuubi with beeline CLI in Thrift protocol.

Connect to Kyuubi with Beeline

$ $KYUUBI_HOME/bin/beeline -u "jdbc:hive2://xxxx:10009/"

Execute Query to Kyuubi

Execute query statement select * from demo.expamle_tbl; with query results returned.

0: jdbc:hive2://xxxx:10009/> select * from demo.example_tbl;

2023-03-07 09:29:14.771 INFO org.apache.kyuubi.operation.ExecuteStatement: Processing anonymous's query[bdc59dd0-ceea-4c02-8c3a-23424323f5db]: PENDING_STATE -> RUNNING_STATE, statement:
select * from demo.example_tbl
2023-03-07 09:29:14.786 INFO org.apache.kyuubi.operation.ExecuteStatement: Query[bdc59dd0-ceea-4c02-8c3a-23424323f5db] in FINISHED_STATE
2023-03-07 09:29:14.787 INFO org.apache.kyuubi.operation.ExecuteStatement: Processing anonymous's query[bdc59dd0-ceea-4c02-8c3a-23424323f5db]: RUNNING_STATE -> FINISHED_STATE, time taken: 0.015 seconds
+----------+-------------+-------+------+------+------------------------+-------+-----------------+-----------------+
| user_id  |    date     | city  | age  | sex  |    last_visit_date     | cost  | max_dwell_time  | min_dwell_time  |
+----------+-------------+-------+------+------+------------------------+-------+-----------------+-----------------+
| 10000    | 2017-10-01  | 北京   | 20   | 0    | 2017-10-01 07:00:00.0  | 70    | 10              | 2               |
| 10001    | 2017-10-01  | 北京   | 30   | 1    | 2017-10-01 17:05:45.0  | 4     | 22              | 22              |
| 10002    | 2017-10-02  | 上海   | 20   | 1    | 2017-10-02 12:59:12.0  | 400   | 5               | 5               |
| 10003    | 2017-10-02  | 广州   | 32   | 0    | 2017-10-02 11:20:00.0  | 60    | 11              | 11              |
| 10004    | 2017-10-01  | 深圳   | 35   | 0    | 2017-10-01 10:00:15.0  | 200   | 3               | 3               |
| 10004    | 2017-10-03  | 深圳   | 35   | 0    | 2017-10-03 10:20:22.0  | 22    | 6               | 6               |
+----------+-------------+-------+------+------+------------------------+-------+-----------------+-----------------+
6 rows selected (0.068 seconds)