hive集群安装，连接mysql
1.linux安装mysql，并且生成hive用户，密码为Abc!123D，权限为所有权限，请看（这点很重要）http://blog.csdn.net/qq_21383435/article/details/76573955
2。我的hadoop是2。7，hive下载的是2.2，下载解压hive到/opt/moudles/apache-hive-2.2.0-bin这个目录
3。配置hive环境变量
export HIVE_HOME=/opt/moudles/apache-hive-2.2.0-bin
export PATH=$PATH:$HIVE_HOME/bin
"/etc/profile" 109L, 2732C 4。配置hive的环境
vim hive-env.sh
HADOOP_HOME=/opt/moudles/hadoop-2.7.3
export HIVE_CONF_DIR=/opt/moudles/apache-hive-2.2.0-bin/conf5.配置vim conf/hive-site.xml
<configuration>
<property>
<name>hive.metastore.localname>
<value>falsevalue>
property>
<property>
<name>hive.metastore.warehouse.dirname>
<value>hdfs://mycluster/hive/warehousevalue>
property>
<property>
<name>javax.jdo.option.ConnectionURLname>
<value>jdbc:mysql://biluos.com:3306/hive_db?createDatabaseIfNotExist=truevalue>
<description>JDBC connect string for a JDBC metastoredescription>
property>
<property>
<name>javax.jdo.option.ConnectionDriverNamename>
<value>com.mysql.jdbc.Drivervalue>
<description>Driver class name for a JDBC metastoredescription>
property>
<property>
<name>javax.jdo.option.ConnectionUserNamename>
<value>hivevalue>
<description>username to use against metastore databasedescription>
property>
<property>
<name>javax.jdo.option.ConnectionPasswordname>
<value>Abc!123Dvalue>
<description>password to use against metastore databasedescription>
property>
<property>
<name>hive.metastore.urisname>
<value>thrift://biluos.com:9083value>
<description>Thrift URI for the remote metastore. ...description>
property>
<property>
<name>hive.metastore.schema.verificationname>
<value>falsevalue>
property>
<property>
<name>hive.cli.print.current.dbname>
<value>truevalue>
property>
<property>
<name>hive.cli.print.headername>
<value>truevalue>
property>
configuration>
6。把MySql驱动放到Hive的lib目录下
上面这个带bin的不知道是不是windows使用的，反正没测试，因为报错太多，用空测试吧
7。初始化hive
[root@biluos apache-hive-2.2.0-bin]# schematool -initSchema -dbType mysql --verbose–verbose可要可不要，要的话会显示详细信息，我在这里卡了很久。但是不知怎么就解决了。主要是出问题
这里重点检查配置文件和hive用户的权限，主要是连接的URL配置。
成功后mysql中可以看到
8。启动Hive
实际使用时，一般通过后台启动metastore和hiveserver实现服务，命令如下：
hive –service metastore &
hive –service hiveserver &
我现在是测试
然后启动hive命令行
这一点如果先执行这个命令会报错如下，需要先执行hive –service metastore
Exception in thread "main" java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
Caused by: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
Caused by: java.lang.reflect.InvocationTargetException
Caused by: MetaException(message:Could not connect to meta store using any of the URIs provided. Most recent failure: org.apache.thrift.transport.TTransportException: java.net.ConnectException: Connection refused (Connection refused)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
9。hive中建立一个数据库，然后建立一个表create table test(id int,name string); 可以看到网页上可以看到
10。好了，安装完成
11，下面是集群的另外一种配置，其他不变只需要修改hive-site.xml就好了
<property>
<name>hive.metastore.warehouse.dirname>
<value>hdfs://mycluster/hive/warehousevalue>
property>
<property>
<name>javax.jdo.option.ConnectionURLname>
<value>jdbc:mysql://biluos.com:3306/hive_db?createDatabaseIfNotExist=truevalue>
<description>JDBC connect string for a JDBC metastoredescription>
property>
<property>
<name>javax.jdo.option.ConnectionDriverNamename>
<value>com.mysql.jdbc.Drivervalue>
<description>Driver class name for a JDBC metastoredescription>
property>
<property>
<name>javax.jdo.option.ConnectionUserNamename>
<value>hivevalue>
<description>username to use against metastore databasedescription>
property>
<property>
<name>javax.jdo.option.ConnectionPasswordname>
<value>Abc!123Dvalue>
<description>password to use against metastore databasedescription>
property>
<property>
<name>hive.metastore.urisname>
<value>thrift://biluos.com:9083value>
<description>Thrift URI for the remote metastore. ...description>
property>
<property>
<name>hbase.zookeeper.quorumname>
<value>biluos.com,biluos1.com,biluos2.comvalue>
property>