kyuubi/docs/client/hive_jdbc.md
Cheng Pan 19150ca292
[KYUUBI #951] [LICENSE] Add license header on all docs
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Closes #951 from pan3793/license.

Closes #951

4629eecd [Cheng Pan] Fix
c45a0784 [Cheng Pan] nit
b9a46b42 [Cheng Pan] pin license header at first line
80d1a71b [Cheng Pan] nit
b2a46e4c [Cheng Pan] Update
f6acaaf8 [Cheng Pan] minor
ef99183f [Cheng Pan] Add license header on all docs

Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>
(cherry picked from commit a76c344042)
Signed-off-by: Cheng Pan <chengpan@apache.org>
2021-08-19 09:54:01 +08:00

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<div align=center>
![](../imgs/kyuubi_logo.png)
</div>
# Access Kyuubi with Hive JDBC and ODBC Drivers
## Instructions
Kyuubi does not provide its own JDBC Driver so far,
as it is fully compatible with Hive JDBC and ODBC drivers that let you connect to popular Business Intelligence (BI) tools to query,
analyze and visualize data though Spark SQL engines.
## Install Hive JDBC
For programing, the easiest way to get `hive-jdbc` is from [the maven central](https://mvnrepository.com/artifact/org.apache.hive/hive-jdbc). For example,
- **maven**
```xml
<dependency>
<groupId>org.apache.hive</groupId>
<artifactId>hive-jdbc</artifactId>
<version>2.3.8</version>
</dependency>
```
- **sbt**
```scala
libraryDependencies += "org.apache.hive" % "hive-jdbc" % "2.3.8"
```
- **gradle**
```gradle
implementation group: 'org.apache.hive', name: 'hive-jdbc', version: '2.3.8'
```
For BI tools, please refer to [Quick Start](../quick_start/index.html) to check the guide for the BI tool used.
If you find there is no specific document for the BI tool that you are using, don't worry, the configuration part for all BI tools are basically same.
Also, we will appreciate if you can help us to improve the document.
## JDBC URL
JDBC URLs have the following format:
```
jdbc:hive2://<host>:<port>/<dbName>;<sessionConfs>?<sparkConfs>#<[spark|hive]Vars>
```
JDBC Parameter | Description
---------------| -----------
host | The cluster node hosting Kyuubi Server.
port | The port number to which is Kyuubi Server listening.
dbName | Optional database name to set the current database to run the query against, use `default` if absent.
sessionConfs | Optional `Semicolon(;)` separated `key=value` parameters for the JDBC/ODBC driver. All of these will be set to the engine by `SparkSession.conf` which only accepts [Runtime SQL Configurations](http://spark.apache.org/docs/latest/configuration.html#runtime-sql-configuration);
sparkConfs | Optional `Semicolon(;)` separated `key=value` parameters for Kyuubi server to create the corresponding engine, dismissed if engine exists.
[spark&#124;hive]Vars | Optional `Semicolon(;)` separated `key=value` parameters for Spark/Hive variables used for variable substitution.
## Example
```
jdbc:hive2://localhost:10009/default;spark.sql.adaptive.enabled=true?spark.ui.enabled=false#var_x=y
```
## Unsupported Hive Features
- Connect to HiveServer2 using HTTP transport. ```transportMode=http```