hbase与hive集成：hive读取hbase中数据

1、创建hbase jar包到hive lib目录软连接

hive需要jar包：
hive-hbase-handler-0.13.1-cdh5.3.6.jar
zookeeper-3.4.5-cdh5.3.6.jar
guava-12.0.1.jar                  --删除hive下低版本jar包，cp hbase中的到hive/lib/下（即需要注意jar包版本）

ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/hbase-server-0.98.6-cdh5.3.6.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/hbase-server-0.98.6-cdh5.3.6.jar
ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/hbase-client-0.98.6-cdh5.3.6.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/hbase-client-0.98.6-cdh5.3.6.jar
ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/hbase-protocol-0.98.6-cdh5.3.6.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/hbase-protocol-0.98.6-cdh5.3.6.jar
ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/hbase-it-0.98.6-cdh5.3.6.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/hbase-it-0.98.6-cdh5.3.6.jar
ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/htrace-core-2.04.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/htrace-core-2.04.jar
ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/hbase-hadoop2-compat-0.98.6-cdh5.3.6.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/hbase-hadoop2-compat-0.98.6-cdh5.3.6.jar
ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/hbase-hadoop-compat-0.98.6-cdh5.3.6.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/hbase-hadoop-compat-0.98.6-cdh5.3.6.jar
ln -s /opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6/lib/high-scale-lib-1.1.1.jar /opt/cdh-5.3.6/hive-0.13.1-cdh5.3.6/lib/high-scale-lib-1.1.1.jar

2、配置hive-site.xml文件，加入zookeeper属性：

hbase.zookeeper.quorum

3、配置环境变量：

export HBASE_HOME=/opt/cdh-5.3.6/hbase-0.98.6-cdh5.3.6
export HADOOP_HOME=/opt/cdh-5.3.6/hadoop-2.5.0-cdh5.3.6
HADOOP_CLASSPATH=`${HBASE_HOME}/bin/hbase mapredcp`:${HBASE_HOME}/conf

4、hive集成hbase中dept表（外部表：hbase中已经存在的表，想要在hive中使用sql进行分析在hive应该创建外部表）：

CREATE EXTERNAL TABLE hbase_dept(
deptno string,
dname string,
loc string)
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,info:dname,info:loc")
TBLPROPERTIES ("hbase.table.name" = "dept");