HiveServer2的配置使用

HiveServer2的配置和使用

hive-site.xml配置

hiveserver2的配置

<property>

<name>hive.support.concurrency</name>

<description>Enable Hive's TableLock Manager Service</description>

<value>true</value>

</property>

<property>

<name>hive.zookeeper.quorum</name>

<description>

Zookeeper quorum used by Hive's Table Lock Manager

</description>

<value>

e3basestorage1:2181,e3basestorage2:2181,e3basestorage3:2181

</value>

</property>

<property>

<name>hive.server2.thrift.bind.host</name>

<value>172.21.3.170</value>

<description>

Bind host on which to run the HiveServer2 Thrift interface.Can

be overridden by setting $HIVE_SERVER2_THRIFT_BIND_HOST

</description>

</property>

远程访问元数据的配置

<property>

<name>hive.metastore.uris</name>

<value>thrift://172.21.1.56:9083</value>

<description>Thrift uri for the remote metastore. Used by metastoreclient to connect to remote metastore.</description>

</property>

<property>

<name>hive.metastore.local</name>

<value>false</value>

<description>this is local store .</description>

</property>

shell交互

bin/beeline

!connectjdbc:hive2://localhost:10000 e3base
e3base123 org.apache.hive.jdbc.HiveDriver  (红字为当前的用户名和密码

)

Jdbc连接

远程启动元数据服务：

nohup bin/hive --servicemetastore&

启动hiveserver2服务

nohup bin/hive --servicehiveserver2  &  以后台进程的方式启动

Java客户端访问

示例代码：

package com.sitech;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import org.apache.log4j.Logger;

public
class T1 {

private
static Logger log = Logger.getLogger(T1.class);

private
static String driverName =
"org.apache.hive.jdbc.HiveDriver";

public
boolean run() {

try {

Class.forName(driverName);

Connection con = null;

con = DriverManager.getConnection(

"jdbc:hive2://172.21.3.170:10000/hivedb",
"", "");

Statement stmt = con.createStatement();

ResultSet res = null;

String sql = "selectcount(*) from test";

System.out.println("Running:" + sql);

res = stmt.executeQuery(sql);

System.out.println("ok");

while (res.next()) {

System.out.println(res.getString(1));

}

return
true;

} catch (Exception e) {

e.printStackTrace();

log.error("Connection:" + e.getMessage());

System.out.println("error");

return
false;

}

}

public
static void main(String[] args)
throws SQLException {

HiveJdbcClienthiveJdbcClient =
new
HiveJdbcClient();

hiveJdbcClient.run();

}

}