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README.md
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README.md
@ -31,7 +31,7 @@ But unfortunately, due to the limitations of Spark's own architecture,to be us
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### Packaging
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Please refer to the [Building Kyuubi](docs/building.md) in the online documentation for an overview on how to build Kyuubi.
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Please refer to the [Building Kyuubi](https://yaooqinn.github.io/kyuubi/docs/building.html) in the online documentation for an overview on how to build Kyuubi.
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### Start Kyuubi
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@ -45,9 +45,10 @@ $ $SPARK_HOME/bin/spark-submit \
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--deploy-mode client \
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--driver-memory 10g \
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--conf spark.kyuubi.frontend.bind.port=10009 \
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$KYUUBI_HOME/target/kyuubi-1.0.0-SNAPSHOT.jar
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$KYUUBI_HOME/target/kyuubi-<version>.jar
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```
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**NOTE:** No multi tenancy guarantee if without [Patch](https://github.com/yaooqinn/kyuubi/tree/master/patches)
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#### 2. As a long running service
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@ -59,8 +60,9 @@ $ nohup $SPARK_HOME/bin/spark-submit \
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--deploy-mode client \
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--driver-memory 10g \
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--conf spark.kyuubi.frontend.bind.port=10009 \
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$KYUUBI_HOME/target/kyuubi-1.0.0-SNAPSHOT.jar &
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$KYUUBI_HOME/target/kyuubi-<version>.jar &
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```
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**NOTE:** No multi tenancy guarantee if without [Patch](https://github.com/yaooqinn/kyuubi/tree/master/patches)
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#### 3. With built-in startup script
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@ -68,7 +70,7 @@ The more recommended way is through the built-in startup script `bin/start-kyuub
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First of all, export `SPARK_HOME` in $KYUUBI_HOME/bin/kyuubi-env.sh`
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```bash
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export SPARK_HOME=/the/path/to/an/runable/spark/binary/dir
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export SPARK_HOME=/the/path/to/a/runable/spark/binary/dir
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```
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And then the last, start Kyuubi with `bin/start-kyuubi.sh`
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@ -79,6 +81,7 @@ $ bin/start-kyuubi.sh \
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--driver-memory 10g \
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--conf spark.kyuubi.frontend.bind.port=10009
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```
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**NOTE:** Full multi tenancy guarantee by default on YARN.
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### Run Spark SQL on Kyuubi
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@ -112,18 +115,18 @@ Suppose that you already have a secured HDFS cluster for deploying Spark, Hive o
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- Configuration of Hive is done by placing your `hive-site.xml`, `core-site.xml` and `hdfs-site.xml` files in `$SPARK_HOME/conf`.
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#### Patch Spark
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#### Patch Spark (Deprecated)
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- Apply a simple patch from [Patches Directory](https://github.com/yaooqinn/kyuubi/tree/master/patches) to specified Spark version
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- [Build Spark](http://spark.apache.org/docs/latest/building-spark.html) of your own.
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## Configuration
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Please refer to the [Configuration Guide](docs/configurations.md) in the online documentation for an overview on how to configure Kyuubi.
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Please refer to the [Configuration Guide](https://yaooqinn.github.io/kyuubi/docs/configurations.html) in the online documentation for an overview on how to configure Kyuubi.
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## Authentication
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Please refer to the [Authentication/Security Guide](docs/authentication.md) in the online documentation for an overview on how to enable security for Kyuubi.
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Please refer to the [Authentication/Security Guide](https://yaooqinn.github.io/kyuubi/docs/authentication.html) in the online documentation for an overview on how to enable security for Kyuubi.
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## Additional Documentation
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[Kyuubi Architecture](./docs/architecture.md)
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[Kyuubi Architecture](https://yaooqinn.github.io/kyuubi/docs/architecture.html)
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@ -38,10 +38,10 @@ is not any active session interacting with a `SparkContext`. And also with the a
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it also allows us to dynamically allocating resources within a `SparkContext` a.k.a a Yarn Application.
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<h4 id="1.2.1">Kyuubi Dynamic Resource Requesting</h4>
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- Session Level Resource Configurations
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- Session Level Resource Configurations
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Kyuubi supports all Spark/Hive/Hadoop configurations, such as `spark.executor.cores/memory`, to be set in the connection
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string which will be used to initialize SparkContext.
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- Example
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string which will be used to initialize SparkContext.
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- Example
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```
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jdbc:hive2://<host>:<port>/;hive.server2.proxy.user=tom#spark.yarn.queue=theque;spark.executor.instances=3;spark.executor.cores=3;spark.executor.memory=10g
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```
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@ -75,7 +75,7 @@ With these features, Kyuubi allows us to use computing resources more efficientl
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<h4 id="1.3.1">Authentication</h4>
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Please refer to the [Authentication/Security Guide](authentication.md) in the online documentation for an overview on how to enable security for Kyuubi.
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Please refer to the [Authentication/Security Guide](https://yaooqinn.github.io/kyuubi/docs/authentication.html) in the online documentation for an overview on how to enable security for Kyuubi.
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<h4 id="1.3.2">Authorization</h4>
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@ -116,3 +116,5 @@ Kyuubi's internal is very simple to understand, which is shown as the picture be
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<div style="text-align: center">
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<img style="zoom: 1.00" src="./imgs/kyuubi_internal.png" />
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</div>
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[Home Page](https://yaooqinn.github.io/kyuubi/)
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@ -45,3 +45,5 @@ $KYUUBI_HOME/bin/start-kyuubi.sh --conf spark.kyuubi.authentication=KERBEROS
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```bash
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$SPARK_HOME/bin/beeline -u "jdbc:hive2://${replace with spark.kyuubi.frontend.bind.host}:10000/;principal=${replace with spark.yarn.principal};hive.server2.proxy.user=hzyaoqin"
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```
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[Home Page](https://yaooqinn.github.io/kyuubi/)
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@ -36,3 +36,5 @@ With Maven, you can use the -DwildcardSuites flag to run individual Scala tests:
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```
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For more information about the ScalaTest Maven Plugin, refer to the [ScalaTest documentation](http://www.scalatest.org/user_guide/using_the_scalatest_maven_plugin).
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[Home Page](https://yaooqinn.github.io/kyuubi/)
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@ -107,3 +107,5 @@ These configurations are used for SparkSessin to talk to Hive MetaStore Server c
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## Hadoop Configurations
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Please refer to the [Apache Hadoop](http://hadoop.apache.org)'s online documentation for an overview on how to configure Hadoop.
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[Home Page](https://yaooqinn.github.io/kyuubi/)
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@ -1,86 +0,0 @@
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# Kyuubi
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**Kyuubi**是[Apache Spark](http://spark.apache.org)原生所提供的[Thrift JDBC/ODBC Server](http://spark.apache.org/docs/latest/sql-programming-guide.html#running-the-thrift-jdbcodbc-server)
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服务的一个增强版本。
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**Thrift JDBC/ODBC Server**作为Spark SQL对标[Apache Hive](https://hive.apache.org) [HiveServer2](https://cwiki.apache.org/confluence/display/Hive/HiveServer2+Overview)
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而存在的服务,通过该服务允许用户使用JDBC/ODBC端口协议来执行Spark SQL查询。通过Thrift JDBC/ODBC Server,业务用户就可以用使用一些支持JDBC/ODBC连接的BI工具,比如[Tableau](https://www.tableau.com/zh-cn),[网易有数](https://youdata.163.com)等,
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来对接基于Spark的海量数据报表制作,并取得比Apache Hive更好的SQL on Hadoop性能。但由于Apache Spark本身架构的限制,要作为一款企业级的产品来使用,其与HiveServer2相比
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还有不少的问题存在,比如多租户隔离、权限控制、高并发、高可用等等。而Apache Spark社区对这块的支持也处于长期停滞的状态。
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**Kyuubi**针对这些存在的问题在某些方面对Thrift JDBC/ODBC Server进行的增强。具体如下表所示,
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|---|**Thrift JDBC/ODBC Server**|**Kyuubi**|备注|
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|:---:|:---:|:---:|---|
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|SparkContext多实例|✘|√|Apache Spark对于单个JVM中实例化多个SparkContext一直有较多的尝试,可以参见[这里](https://www.jianshu.com/p/e1cfcaece8f1);</br> 而其多实例特性可以通过`spark.driver.allowMultipleContexts`开启,也不过是SparkContext被实例化多次,并公用一套调度和执行环境而已,有点像java对象的一次浅拷贝。 </br> Kyuubi附带的Patch提供了一种以用户隔离调度和执行环境的方法。|
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|SparkContext动态实例化|✘|√|Thrift JDBC/ODBC Server在启动时初始化一个SparkContext实例,而Kyuubi则在用户会话创建时去缓存中获取或新建SparkContext|
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|SparkContext动态回收|✘|√|Thrift JDBC/ODBC Server在用户断开会话后会回收SparkSession,而SparkContext则是常驻的变量;</br> Kyuubi对于SparkSession亦如是,不同的是由于SparkContext是动态新增的,从而对应的会有相应的回收机制。|
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|动态Yarn队列|✘|√|Spark on Yarn可以通过spark.yarn.queue指定队列,Thrift JDBC/ODBC Server指定这个队列后并无法修改这个队列,</br> HiveServer2可以`set mapred.job.queue.name=thequeue`来指定执行队列, </br> Kyuubi采取了折中方案,可以将spark.yarn.queue设置连接串中。|
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|动态参数设置|仅支持`spark.sql.`开头的动态参数|√|Kyuubi支持在连接串中指定`spark.executor.cores/memory`等参数动态设置对应SparkContext所能调度的资源|
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|权限控制|✘|✘|Kyuubi后续会增加[Spark Authorizer](https://github.com/yaooqinn/spark-authorizer)的支持。|
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|代理执行|仅支持代理一位用户,server启动时通过--proxy-user指定|支持hive.server2.proxy.user;</br> 支持hive.server2.doAs||
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|多租户|✘|√|基于以上特性,Kyuubi可以在开启LCE的Yarn集群上实现多租户|
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|SQL执行日志|✘|√|HiveServer2通过LogDivertAppender来从定向SQL执行的日志到文件中,Kyuubi基于重写了该Appender得以将执行日志拉去到文件中。|
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|高可用|✘|√|Thrift JDBC/ODBC Server实际是粗糙的改写了HiveServer2的部分代码,连接ZK实现高可用的代码被阉掉了,Kyuubi把他们加回来而已|
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|Cluster模式|✘|✘|Kyuubi后续会加入cluster模式的支持|
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## 快速上手
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#### 编译
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**Kyuubi**基于maven构建
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```sbtshell
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build/mvn clean package
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```
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#### 运行
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**Kyuubi**本质上作为一个Spark Application可以轻松的用spark-submit起来
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```bash
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$ $SPARK_HOME/bin/spark-submit \
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--class yaooqinn.kyuubi.server.KyuubiServer \
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--master yarn \
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--deploy-mode client \
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--driver-memory 10g \
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--conf spark.hadoop.hive.server2.thrift.port=10009 \
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$KYUUBI_HOME/target/kyuubi-1.0.0-SNAPSHOT.jar
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```
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作为一个长服务,当然最好用`nohup`配合`&`来使用。但是更加推荐内置脚本来运行Kyuubi。
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首先,在`$KYUUBI_HOME/bin/kyuubi-env.sh`设置好`SPARK_HOME`
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```bash
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export SPARK_HOME=/the/path/to/an/runable/spark/binary/dir
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```
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其次,通过`bin/start-kyuubi.sh`启动Kyuubi
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```bash
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$ bin/start-kyuubi.sh \
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--master yarn \
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--deploy-mode client \
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--driver-memory 10g \
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--conf spark.hadoop.hive.server2.thrift.port=10009 \
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```
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即可通过[beeline](https://cwiki.apache.org/confluence/display/Hive/HiveServer2+Clients)等Thrift API或者[Tableau](https://www.tableau.com/zh-cn)这种工具来连接了。
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最后,`bin/stop-kyuubi.sh`来停止服务。
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**当然,仅仅如此的话,Kyuubi完全等价于Thrift JDBC/ODBC Server,并不具备多租户的特性。**
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## 多租户
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#### 前置条件
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- [Spark On Yarn](http://spark.apache.org/docs/latest/running-on-yarn.html)
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+ 配置好Spark On Yarn
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+ [LunixExecutorCantainer](https://hadoop.apache.org/docs/r2.7.2/hadoop-yarn/hadoop-yarn-site/SecureContainer.html)
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+ 为不同的用户创建队列(Optional)
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- [Thrift JDBC/ODBC Server相关要求的配置](http://spark.apache.org/docs/latest/sql-programming-guide.html#running-the-thrift-jdbcodbc-server)
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+ 配置好hive-site.xml
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- 为Spark打上对应的Patch
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