hive1.2.1安装

准备：hadoop-2.7.3伪分布式环境

    linux centos6

    hive-1.2.1.tar.gz包

安装：1.解压：tar zxvf apache-hive-1.2.1-bin.tar.gz 解压到当前目录

    2.hive的环境变量etc/profile文件，可配可不配

    3.修改hive根目录下的conf文件夹下的两个模板文件

cp hive-env.sh.template hive-env.sh

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

  hive-env.sh文件中修改的部分如下：

# HADOOP_HOME=${bin}/../../hadoop
HADOOP_HOME=/root/hadoop-2.7.3
# Hive Configuration Directory can be controlled by:
export HIVE_CONF_DIR=/home/root/apache-hive-1.2.1-bin/conf

# Folder containing extra ibraries required for hive compilation/execution can be controlled by:
export HIVE_AUX_JARS_PATH=/home/root/apache-hive-1.2.1-bin/lib

hive-site.xml文件中
修改的部分如下：

    hive.metastore.warehouse.dir
    /home/root/apache-hive-1.2.1-bin/warehouse
    location of default database for the warehouse
  

    hive.exec.scratchdir
    /home/root/apache-hive-1.2.1-bin/tmp
    HDFS root scratch dir for Hive jobs which gets created with write all (733) permission. For each connecting user, an HDFS scratch dir: ${hive.exec.scratchdir}/ is created, with ${hive.scratch.dir.permission}.
  

    hive.querylog.location
    /home/root/apache-hive-1.2.1-bin/log
    Location of Hive run time structured log file
  

当然，这三个文件夹要事先建好。

我把默认的derby数据库改为了本机上已经安装好的mysql数据库：

  javax.jdo.option.ConnectionDriverName
  com.mysql.jdbc.Driver
  Driver class name for a JDBC metastore


  javax.jdo.option.ConnectionURL
  jdbc:mysql://127.0.0.1:3306/hive?createDatabaseIfNotExist=true
  JDBC connect string for a JDBC metastore


   javax.jdo.option.ConnectionUserName
   root
   username to use against metastore database


    javax.jdo.option.ConnectionPassword
    root
    password to use against metastore database

还要记得把 mysql-connector-java-5.1.6.jar 拷贝到hive根目录的lib目录下

此时，进入到hive根目录的bin目录下执行hive 启动。。。

发现出错：说我hadoop version 有问题，找不到main函数的启动类VersionInfo类，那肯定就是环境变量的问题，看了眼环境变量，把多余的失效的hadoop环境变量配置给去掉就ok了。此时，再次启动，发现依然有错误。。错误如下：

Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:522)
	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:677)
	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)
	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.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D
	at org.apache.hadoop.fs.Path.initialize(Path.java:205)
	at org.apache.hadoop.fs.Path.(Path.java:171)
	at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:563)
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:508)
	... 8 more
Caused by: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D
	at java.net.URI.checkPath(URI.java:1823)
	at java.net.URI.(URI.java:745)
	at org.apache.hadoop.fs.Path.initialize(Path.java:202)
	... 11 more

说明hive找不到这个叫 ${system:java.io.tmpdir}的变量，此时我在hive根目录下建立了一个文件夹，名字就叫system:java.io.tmpdir，然后把conf文件夹下面的hive-site.xml中所有${system:java.io.tmpdir}都改为了绝对路径，这样这个问题就解决了，再次启动，然后就没有问题了。。

最后启动web界面的服务：bin/hive --service hwi

发现启动不起来，报错，错误如下：FATAL hwi.HWIServer: HWI WAR file not found at ${env:HWI_WAR_FILE} 在这个环境变量配置下面找不到war包,此时依然去hive-site.xml文件中去找到跟hwi相关的配置，然后找遍整个目录确实没有跟hwi相关的war包，那么只能去官网下载对应版本1.2.1的源码然后自行打包：

tar zxvf apache-hive-1.2.1-src.tar.gz

cd apache-hive-1.2.1-src/hwi

jar cfM hive-hwi-1.2.1.war -C web ./

将打包好的war包拷贝到hive的lib目录下cp hive-hwi-1.2.1.war /home/root/apache-hive-1.2.1-bin/lib/

此时再去hive-site.xml文件中将对应的war包文件的配置路径改为

    hive.hwi.war.file
    /lib/hive-hwi-1.2.1.war
    This sets the path to the HWI war file, relative to ${HIVE_HOME}. 
  

然后再重启。。终于启动成功。。（后台启动hive --service hwi 2>/tmp/hwi2.log &）BUT,访问web页面http://IP:9999/hwi/发现：

HTTP ERROR 500
Problem accessing /hwi/index.jsp. Reason:
    JSP support not configured
Powered by Jetty://

不能解析jsp页面，hive web的启动日志中也发现了： did not find org.apache.jasper.servlet.JspServlet的日志信息输出，那么就去找jasper的相关jar包，最后加了3个jar包才管用：jasper.jar 和 jasper-el.jar 还有tomcat-juli.jar

然后再重启发现终于没有问题了，出现了下面清爽的界面：

一波三折，以后再遇到什么问题后续会再次添加。。。

参考文章：http://blog.csdn.net/gamer_gyt/article/details/47150621

http://www.cnblogs.com/hbwxcw/p/5960551.html

http://blog.csdn.net/ggz631047367/article/details/49979109