hive 環境搭建

前提 hadoop 集羣已經啓動並搭建完畢，mysq已經安裝完畢
1.解壓hive

    tar -zvxf apache-hive-0.14.0-bin.tar.gz -C /usr/local/
    mv apache-hive-0.14.0-bin/  hive 

2備份配置文件

    cp hive-env.sh.template hive-env.sh
     cp hive-default.xml.template hive-site.xml

3修改hive-env.sh

export      JAVA_HOME=/usr/local/jdk
export      HADOOP_HOME=/usr/local/hadoop
export      HIVE_HOME=/usr/local/hive

4.修改hive-site.xml

<property>
                <name>javax.jdo.option.ConnectionURL</name>
                    <value>jdbc:mysql://hadoop0:3306/hive?createDatabaseIfNotExist=true</value>
                </property>
                <property>
                    <name>javax.jdo.option.ConnectionDriverName</name>
                    <value>com.mysql.jdbc.Driver</value>
                </property>
                <property>
                    <name>javax.jdo.option.ConnectionUserName</name>
                    <value>root</value>
                </property>
                <property>
                    <name>javax.jdo.option.ConnectionPassword</name>
                    <value>root</value>
                </property>
                <property>
                    <name>hive.querylog.location</name>
                    <value>/usr/local/hive/tmp</value>
                </property>
                <property>
                    <name>hive.exec.local.scratchdir</name>
                    <value>/usr/local/hive/tmp</value>
                </property>
                <property>
                    <name>hive.downloaded.resources.dir</name>
                    <value>/usr/local/hive-0.14.0/tmp</value>
                </property>

若元數據庫不存在 自動創建

<!--auto create-->
<property>
        <name>datanucleus.readOnlyDatastore</name>
        <value>false</value>
    </property>
    <property> 
        <name>datanucleus.fixedDatastore</name>
        <value>false</value> 
    </property>

        <property> 
        <name>datanucleus.autoCreateSchema</name> 
        <value>true</value> 
    </property>

<property>
        <name>datanucleus.autoCreateTables</name>
        <value>true</value>
    </property>

 <property>
        <name>datanucleus.autoCreateColumns</name>
        <value>true</value>
    </property>

5、拷貝mysql驅動到$HIVE_HOME/lib目錄下

 cp mysql-connector-java-5.1.17.jar $HIVE_HOME/lib/    

6、啓動Hive進入hive cli終端

[root@hadoop0 bin]cd  $HIVE_HOME/bin
[root@hadoop0 bin]./hive或者
[root@hadoop0 bin]./hive --service cli

7.hive對外提供 metastore服務
修改 hive-site.xml 添加如下屬性

<property>  
  <name>hive.metastore.uris</name>
  <value>thrift://hadoop:9083</value>
  <description>Thrift URI for the remote metastore. ...</description>
</property>

啓動 metastore服務
hive –service metastore &

啓動 server服務
hive –service hiveserver2 &