Hive集群搭建

不念不忘少年蓝@ 2022-05-26 13:52 364阅读 0赞

前面一路从hadoop、spark、zookeeper、kafka等集群搭建而来，大数据生态环境已经初步形成，下面要继续来搭建大数据生态中很重要的Hive集群。  
一、Hive简介  
Hive 是基于 Hadoop 的一个数据仓库工具，可以将结构化的数据文件映射为一张数据库表，并提供完整的 SQL 查询功能，将类 SQL 语句转换为 MapReduce 任务执行。  
二、环境准备  
hadoop-2.7.2  
zookeeper-3.4.6  
三台机器：  
master 、worker1、worker2  
三、开始搭建  
1.下载Hive2.1.1安装包  
wget [http://www.apache.org/dyn/closer.cgi/hive/][http_www.apache.org_dyn_closer.cgi_hive]  
或者直接去国内的清华大学 网易等镜像网站下载  
解压至 /app/hive/目录下，这样管理目录更清晰。  
2.配置环境变量  
注意，Hive只需在一个节点上安装即可,即在master节点安装即可

[hadoop@master zookeeper]$ vim ~/.bash_profile

.bash\_profile内容：

# User specific environment and startup programs
    export JAVA_HOME=/app/java/jdk1.8.0_141
    export HADOOP_HOME=/app/hadoop/hadoop-2.7.3
    export SCALA_HOME=/app/scala/scala-2.11.8
    export SPARK_HOME=/app/spark/spark-2.1.1
    export ZOOKEEPER_HOME=/app/zookeeper/zookeeper-3.4.6
    export KAFKA_HOME=/app/kafka/kafka_2.10-0.9.0.0
    export HIVE_HOME=/app/hive/apache-hive-2.1.1-bin
    PATH=$PATH:$HOME/bin:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$SCALA_HOME/bin:$SPARK_HOME/bin:$SPARK_HOME/sbin:$ZOOKEEPER_HOME/bin:$KAFKA_HOME/bin:$HIVE_HOME/bin
    export PATH

3.安装配置mysql,检查并卸载掉centos自带的mysql

[hadoop@master app]$ rpm -qa |grep mysql
    mysql-libs-5.1.71-1.el6.x86_64
    [hadoop@master app]$ rpm -e mysql-libs-5.1.71-1.el6.x86_64 --nodeps

重新安装mysql，需要以管理员身份，此处使用sudo

[hadoop@master app]$ sudo rpm -e mysql-libs-5.1.71-1.el6.x86_64 --nodeps
    [hadoop@master app]$ rpm -qa |grep mysql
    [hadoop@master app]$ sudo yum -y install mysql-server
    Loaded plugins: fastestmirror, refresh-packagekit, security
    Installed:
      mysql-server.x86_64 0:5.1.73-8.el6_8                                                                                                                                     
    
    Dependency Installed:
      mysql.x86_64 0:5.1.73-8.el6_8          mysql-libs.x86_64 0:5.1.73-8.el6_8          perl-DBD-MySQL.x86_64 0:4.013-3.el6          perl-DBI.x86_64 0:1.609-4.el6         
    
    Complete!
    [hadoop@master app]$ rpm -qa |grep mysql
    mysql-5.1.73-8.el6_8.x86_64
    mysql-libs-5.1.73-8.el6_8.x86_64
    mysql-server-5.1.73-8.el6_8.x86_64

安装成功！  
4.初始化配置mysql  
(1)修改mysql的密码(root权限执行)

[hadoop@master usr]$ cd /usr/bin
    [hadoop@master bin]$ sudo ./mysql_secure_installation

(2)输入当前MySQL数据库的密码, 初始root无密码, 直接回车

Enter current password for root (enter for none):

(3)设置MySQL中root用户的密码(应与下面Hive配置一致,此处设置为123)

Set root password? [Y/n] Y
    New password: 
    Re-enter new password: 
    Password updated successfully!
    Reloading privilege tables..
    ... Success!

(4)删除匿名用户

Remove anonymous users? [Y/n] Y
    ... Success!

(5)是否不允许用户远程连接,选择N

Disallow root login remotely? [Y/n] N
    ... Success!

(6)删除test数据库

Remove test database and access to it? [Y/n] Y
     Dropping test database...
    ... Success!
     Removing privileges on test database...
    ... Success!

(7)重装

Reload privilege tables now? [Y/n] Y
    ... Success!

(8)完成

All done!  If you've completed all of the above steps, your MySQL
    installation should now be secure.
    Thanks for using MySQL!

(9)登陆mysql

mysql -uroot -p
    //查看用户 select user from user； //（无需）创建用户create user 'hive' @' %' identified by '123' //删除用户 drop user 'hive' @' %';
    flush privileges;
    GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123' WITH GRANT OPTION;
    FLUSH PRIVILEGES;
    exit;

至此mysql配置完成。  
5.配置Hive  
（1）编辑hive-env.xml文件

[hadoop@master conf]$ cp hive-env.sh.template  hive-env.sh
    [hadoop@master conf]$ vim hive-env.sh

JAVA_HOME=/app/java/jdk1.8.0_141
    HADOOP_HOME=/app/hadoop/hadoop-2.7.3
    HIVE_HOME=/app/hive/apache-hive-2.1.1-bin
    export HIVE_CONF_DIR=$HIVE_HOME/conf
    #export HIVE_AUX_JARS_PATH=$SPARK_HOME/lib/spark-assembly-1.6.0-hadoop2.6.0.jar
    export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$HADOOP_HOME/lib:$HIVE_HOME/lib
    #export HADOOP_OPTS="-Dorg.xerial.snappy.tempdir=/tmp -Dorg.xerial.snappy.lib.name=libsnappyjava.jnilib $HADOOP_OPTS"

(2)编辑hive-site.xml

[hadoop@master conf]$ cp hive-default.xml.template hive-site.xml
    [hadoop@master conf]$ vim hive-site.xml

里面配置项非常多，清掉configuration里的所有属性。  
可参照如下的配置：

<configuration>
     <property>
        <name>javax.jdo.option.ConnectionURL</name>
        <value>jdbc:mysql://master:3306/hive?createDatabaseIfNotExist=true</value>
        <description>JDBC connect string for a JDBC metastore</description>
    </property>
    <property>
        <name>javax.jdo.option.ConnectionDriverName</name>
        <value>com.mysql.jdbc.Driver</value>
        <description>Driver class name for a JDBC metastore</description>
    </property>
    <property>
        <name>javax.jdo.option.ConnectionUserName</name>
        <value>root</value>
        <description>username to use against metastore database</description>
    </property>
    <property>
        <name>javax.jdo.option.ConnectionPassword</name>
        <value>123</value>
        <description>password to use against metastore database</description>
    </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>
    
    <property>
        <name>hive.metastore.warehouse.dir</name>
        <value>/hive</value>
        <description>location of default database for the warehouse</description>
    </property>
    
    <property>
        <name>hive.downloaded.resources.dir</name>
        <value>/app/hive/apache-hive-2.1.1-bin/tmp/resources</value>
        <description>Temporary local directory for added resources in the remote file system.</description>
     </property>
     
    <property>
        <name>hive.exec.dynamic.partition</name>
        <value>true</value>
     </property>
    <property>
        <name>hive.exec.dynamic.partition.mode</name>
        <value>nonstrict</value>
     </property>
    
    <property>
        <name>hive.exec.local.scratchdir</name>
        <value>/app/hive/apache-hive-2.1.1-bin/tmp/HiveJobsLog</value>
        <description>Local scratch space for Hive jobs</description>
    </property>
    <property>
        <name>hive.downloaded.resources.dir</name>
        <value>/app/hive/apache-hive-2.1.1-bin/tmp/ResourcesLog</value>
        <description>Temporary local directory for added resources in the remote file system.</description>
    </property>
    <property>
        <name>hive.querylog.location</name>
        <value>/app/hive/apache-hive-2.1.1-bin/tmp/HiveRunLog</value>
        <description>Location of Hive run time structured log file</description>
    </property>
    <property>
        <name>hive.server2.logging.operation.log.location</name>
        <value>/app/hive/apache-hive-2.1.1-bin/tmp/OpertitionLog</value>
        <description>Top level directory where operation tmp are stored if logging functionality is enabled</description>
    </property>
    
    <property>  
        <name>hive.hwi.war.file</name>  
        <value>/app/bin/apache-hive-2.2.1-bin/lib/hive-hwi-2.1.1.jar</value>  
        <description>This sets the path to the HWI war file, relative to ${HIVE_HOME}. </description>  
    </property>  
    <property>  
        <name>hive.hwi.listen.host</name>  
        <value>master</value>  
        <description>This is the host address the Hive Web Interface will listen on</description>  
    </property>  
    <property>  
        <name>hive.hwi.listen.port</name>  
        <value>9999</value>  
        <description>This is the port the Hive Web Interface will listen on</description>  
    </property>
    
     
    <property>
        <name>hive.server2.thrift.bind.host</name>
        <value>master</value>
    </property>
    <property>
        <name>hive.server2.thrift.port</name>
        <value>10000</value>
    </property>
    <property>
        <name>hive.server2.thrift.http.port</name>
        <value>10001</value>
    </property>
    <property>
        <name>hive.server2.thrift.http.path</name>
        <value>cliservice</value>
    </property>
    
    <property>
        <name>hive.server2.webui.host</name>
        <value>master</value>
    </property>
    <property>
        <name>hive.server2.webui.port</name>
        <value>10002</value>
    </property>
    <property>
        <name>hive.scratch.dir.permission</name>
        <value>755</value>
    </property>
    
    <property>
        <name>hive.server2.enable.doAs</name>
        <value>false</value>
    </property>   
    
    <property>
        <name>hive.auto.convert.join</name>
        <value>false</value>
    </property>
    <property>
        <name>spark.dynamicAllocation.enabled</name>
        <value>true</value>
        <description>动态分配资源</description>  
    </property>
    
    <property>
        <name>spark.driver.extraJavaOptions</name>
        <value>-XX:PermSize=128M -XX:MaxPermSize=512M</value>
    </property>
    </configuration>

（3）配置日志地址, 修改hive-log4j.properties文件

[hadoop@master conf]$ cp hive-log4j2.properties.template hive-log4j.properties
    [hadoop@master conf]$ vim hive-log4j.properties

将hive.log日志的位置改为$\{HIVE\_HOME\}/tmp目录

#将hive.log日志的位置改为${HIVE_HOME}/tmp目录
    hive.log.dir=/app/hive/apache-hive-2.1.1-bin/tmp

创建tmp目录

[hadoop@master conf]$ mkdir ${ HIVE_HOME}/tmp

（4）配置hive-config.sh文件

## 增加以下三行
    export JAVA_HOME=/app/java/jdk1.8.0_141
    export HIVE_HOME=/app/hive/apache-hive-2.1.1-bin
    export HADOOP_HOME=/app/hadoop/hadoop-2.7.3
    ## 修改下列该行
    HIVE_CONF_DIR=$HIVE_HOME/conf

（5）拷贝JDBC包  
将JDBC的jar包放入$HIVE\_HOME/lib目录下

[hadoop@master tgz]$ cp mysql-connector-java-5.1.19-bin.jar /app/hive/apache-hive-2.1.1-bin/lib/

（6）拷贝jline扩展包  
将HIVE\_HOME/lib目录下的jline-2.12.jar包  
拷贝到HADOOP\_HOME/share/hadoop/yarn/lib目录下,  
并删除HADOOP\_HOME/share/hadoop/yarn/lib目录下旧版本的jline包

[hadoop@master lib]$ cp jline-2.12.jar /app/hadoop/hadoop-2.7.3/share/hadoop/yarn/lib/

( 7 ) 拷贝tools.jar包  
复制JAVA\_HOME目录下的tools.jar到HIVE\_HOME/lib下

[hadoop@master tgz]$ cp  $JAVA_HOME/lib/tools.jar  ${ HIVE_HOME}/lib

（8）执行初始化Hive操作  
选用MySQLysql和Derby二者之一为元数据库  
注意:先查看MySQL中是否有残留的Hive元数据,若有,需先删除

在hive/bin目录下运行schematool -dbType mysql -initSchema \#\# MySQL作为元数据库

[hadoop@master bin]$ schematool -dbType mysql -initSchema
    which: no hbase in (/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/hadoop/bin:/app/java/jdk1.8.0_141/bin:/app/hadoop/hadoop-2.7.3/bin:/app/hadoop/hadoop-2.7.3/sbin:/app/scala/scala-2.11.8/bin:/app/spark/spark-2.1.1/bin:/app/spark/spark-2.1.1/sbin:/app/zookeeper/zookeeper-3.4.6/bin:/app/kafka/kafka_2.10-0.9.0.0/bin:/app/hive/apache-hive-2.1.1-bin/bin)
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/app/hive/apache-hive-2.1.1-bin/lib/log4j-slf4j-impl-2.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/app/hadoop/hadoop-2.7.3/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
    Metastore connection URL:    jdbc:mysql://master:3306/hive?createDatabaseIfNotExist=true
    Metastore Connection Driver :    com.mysql.jdbc.Driver
    Metastore connection User:   root
    Starting metastore schema initialization to 2.1.0
    Initialization script hive-schema-2.1.0.mysql.sql
    Initialization script completed
    schemaTool completed
    [hadoop@master bin]$

其中mysql表示用mysql做为存储hive元数据的数据库, 若不用mysql做为元数据库, 则执行  
schematool -dbType derby -initSchema \#\# Derby作为元数据库  
本文使用的是mysql作为元数据库  
脚本hive-schema-1.2.1.mysql.sql会在配置的Hive元数据库中初始化创建表

（9）启动Metastore服务  
执行Hive前, 须先启动metastore服务, 否则会报错  
执行./hive –service metastore

[hadoop@master bin]$ ./hive --service metastore
    which: no hbase in (/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/hadoop/bin:/app/java/jdk1.8.0_141/bin:/app/hadoop/hadoop-2.7.3/bin:/app/hadoop/hadoop-2.7.3/sbin:/app/scala/scala-2.11.8/bin:/app/spark/spark-2.1.1/bin:/app/spark/spark-2.1.1/sbin:/app/zookeeper/zookeeper-3.4.6/bin:/app/kafka/kafka_2.10-0.9.0.0/bin:/app/hive/apache-hive-2.1.1-bin/bin)
    Starting Hive Metastore Server
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/app/hive/apache-hive-2.1.1-bin/lib/log4j-slf4j-impl-2.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/app/hadoop/hadoop-2.7.3/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]

（10）启动hadoop集群，因为hive是依赖于hdfs的，不启动hadoop会报如下错误

[hadoop@master bin]$ start-all.sh 
    This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
    Starting namenodes on [master]
    master: starting namenode, logging to /app/hadoop/hadoop-2.7.3/logs/hadoop-hadoop-namenode-master.out
    master: starting datanode, logging to /app/hadoop/hadoop-2.7.3/logs/hadoop-hadoop-datanode-master.out
    worker2: starting datanode, logging to /app/hadoop/hadoop-2.7.3/logs/hadoop-hadoop-datanode-worker2.out
    worker1: starting datanode, logging to /app/hadoop/hadoop-2.7.3/logs/hadoop-hadoop-datanode-worker1.out
    Starting secondary namenodes [0.0.0.0]
    0.0.0.0: starting secondarynamenode, logging to /app/hadoop/hadoop-2.7.3/logs/hadoop-hadoop-secondarynamenode-master.out
    starting yarn daemons
    starting resourcemanager, logging to /app/hadoop/hadoop-2.7.3/logs/yarn-hadoop-resourcemanager-master.out
    master: starting nodemanager, logging to /app/hadoop/hadoop-2.7.3/logs/yarn-hadoop-nodemanager-master.out
    worker1: starting nodemanager, logging to /app/hadoop/hadoop-2.7.3/logs/yarn-hadoop-nodemanager-worker1.out
    worker2: starting nodemanager, logging to /app/hadoop/hadoop-2.7.3/logs/yarn-hadoop-nodemanager-worker2.out
    [hadoop@master bin]$ jps
    7220 ResourceManager
    6869 DataNode
    7323 NodeManager
    7053 SecondaryNameNode
    6765 NameNode
    7358 Jps

打开另一个终端窗口,启动Hive进程

[hadoop@master bin]$ hive
    which: no hbase in (/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/hadoop/bin:/app/java/jdk1.8.0_141/bin:/app/hadoop/hadoop-2.7.3/bin:/app/hadoop/hadoop-2.7.3/sbin:/app/scala/scala-2.11.8/bin:/app/spark/spark-2.1.1/bin:/app/spark/spark-2.1.1/sbin:/app/zookeeper/zookeeper-3.4.6/bin:/app/kafka/kafka_2.10-0.9.0.0/bin:/app/hive/apache-hive-2.1.1-bin/bin)
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/app/hive/apache-hive-2.1.1-bin/lib/log4j-slf4j-impl-2.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/app/hadoop/hadoop-2.7.3/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
    
    Logging initialized using configuration in jar:file:/app/hive/apache-hive-2.1.1-bin/lib/hive-common-2.1.1.jar!/hive-log4j2.properties Async: true
    Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
    hive>

不启动hadoop集群会报如下错误：

[hadoop@master bin]$ ./hive
    which: no hbase in (/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/hadoop/bin:/app/java/jdk1.8.0_141/bin:/app/hadoop/hadoop-2.7.3/bin:/app/hadoop/hadoop-2.7.3/sbin:/app/scala/scala-2.11.8/bin:/app/spark/spark-2.1.1/bin:/app/spark/spark-2.1.1/sbin:/app/zookeeper/zookeeper-3.4.6/bin:/app/kafka/kafka_2.10-0.9.0.0/bin:/app/hive/apache-hive-2.1.1-bin/bin)
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/app/hive/apache-hive-2.1.1-bin/lib/log4j-slf4j-impl-2.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/app/hadoop/hadoop-2.7.3/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
    
    Logging initialized using configuration in jar:file:/app/hive/apache-hive-2.1.1-bin/lib/hive-common-2.1.1.jar!/hive-log4j2.properties Async: true
    Exception in thread "main" java.lang.RuntimeException: java.net.ConnectException: Call From master/192.168.163.145 to master:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:591)
        at org.apache.hadoop.hive.ql.session.SessionState.beginStart(SessionState.java:531)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:705)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:641)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
    Caused by: java.net.ConnectException: Call From master/192.168.163.145 to master:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792)
        at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732)
        at org.apache.hadoop.ipc.Client.call(Client.java:1479)
        at org.apache.hadoop.ipc.Client.call(Client.java:1412)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
        at com.sun.proxy.$Proxy31.getFileInfo(Unknown Source)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:771)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
        at com.sun.proxy.$Proxy32.getFileInfo(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2108)
        at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1305)
        at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1301)
        at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
        at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1301)
        at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1426)
        at org.apache.hadoop.hive.ql.session.SessionState.createRootHDFSDir(SessionState.java:689)
        at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:635)
        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:563)
        ... 9 more
    Caused by: java.net.ConnectException: Connection refused
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
        at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495)
        at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:614)
        at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:712)
        at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:375)
        at org.apache.hadoop.ipc.Client.getConnection(Client.java:1528)
        at org.apache.hadoop.ipc.Client.call(Client.java:1451)
        ... 29 more

四、测试

hive> show databases;
    OK
    default
    Time taken: 2.529 seconds, Fetched: 1 row(s)
    hive> show tables;
    OK
    Time taken: 0.225 seconds
    hive> create table employee (id bigint,name string) row format delimited fields terminated by '\t';
    OK
    Time taken: 2.264 seconds
    hive> select * from employee;
    OK
    Time taken: 3.812 seconds

至此hive搭建完成。

[http_www.apache.org_dyn_closer.cgi_hive]: http://www.apache.org/dyn/closer.cgi/hive/