Hive的连接方式：
1.cli方式
在bin目录下执行hive，相当于执行的hive --service cli
2.通过客户端beeline访问hive
3.还有一种是通过web ui访问
这里记录的是通过beeline客户端访问
1.修改hadoop配置文件hdfs-site.xml，表示启用webhdfs
<property>
<name>dfs.webhdfs.enabled</name>
<value>true</value>
</property>
2.修改hadoop配置文件core-site.xml,表示设置可访问的用户及用户组
<property>
<name>hadoop.proxyuser.root.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.root.groups</name>
<value>*</value>
</property>
将配置文件同步到其他节点
scp -r hdfs-site.xml node1:$PWD
scp -r hdfs-site.xml node2:$PWD
scp -r core-site.xml node1:$PWD
scp -r core-site.xml node2:$PWD
3.修改hive的配置文档hive-site.xml
<property>
<name>hive.server2.thrift.bind.host</name>
<value>node1</value>
<description>Bind host on which to run the HiveServer2 Thrift service.</description>
</property>
<property>
<name>hive.server2.thrift.port</name>
<value>11000</value>
<description>Port number of HiveServer2 Thrift interface when hive.server2.transport.mode is 'binary'.</description>
</property>
4.重启hadoop
stop-all.sh
start-all.sh
5.启动hiveserver2
[root@node1 conf]# hiveserver2
which: no hbase in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:JAVA_HOME/bin:/home/hadoop-3.2.0/bin:/home/hadoop-3.2.0/sbin:/usr/local/hive-3.1.1/bin:/usr/local/mysql-5.7.26/bin:/root/bin)
2019-05-24 03:36:40: Starting HiveServer2
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/local/hive-3.1.1/lib/log4j-slf4j-impl-2.10.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/hadoop-3.2.0/share/hadoop/common/lib/slf4j-log4j12-1.7.25.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]
Hive Session ID = d64c0a40-4e99-4764-85ef-a1073e143249
6.在客户端使用beeline访问hive
[root@node1 conf]# beeline
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/local/hive-3.1.1/lib/log4j-slf4j-impl-2.10.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/hadoop-3.2.0/share/hadoop/common/lib/slf4j-log4j12-1.7.25.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]
Beeline version 3.1.1 by Apache Hive
beeline> !connect jdbc:hive2://node1:11000/testdb
Connecting to jdbc:hive2://node1:11000/testdb
Enter username for jdbc:hive2://node1:11000/testdb: root
Enter password for jdbc:hive2://node1:11000/testdb: ********
Connected to: Apache Hive (version 3.1.1)
Driver: Hive JDBC (version 3.1.1)
Transaction isolation: TRANSACTION_REPEATABLE_READ
0: jdbc:hive2://node1:11000/testdb>
查看端口(执行hiveserver2后可能需要等两分钟端口才能查看得到)
ss -anop|grep 11000
show tables;
使用hive sql