本文介紹了使用Sqoop導入MYSQL數據到Hive&Hbase之中。

主要內容：

• 1.下載

1.下載

下載地址

sqoop版本下載

2.安裝

2.1.解壓

tar -zxvf sqoop-1.4.7.bin__hadoop-2.6.0.tar.gz -C /opt/soft

2.2.設置環境變量

cd conf/
mv sqoop-env-template.sh sqoop-env.sh
vi sqoop-env.sh

加入如下配置

#Set path to where bin/hadoop is available
export HADOOP_COMMON_HOME=/opt/soft/hadoop-2.7.3

#Set path to where hadoop-*-core.jar is available
export HADOOP_MAPRED_HOME=/opt/soft/hadoop-2.7.3

#set the path to where bin/hbase is available
export HBASE_HOME=/opt/soft/hbase-1.2.6

#Set the path to where bin/hive is available
export HIVE_HOME=/opt/soft/apache-hive-1.2.2-bin

#Set the path for where zookeper config dir is
export ZOOCFGDIR=/opt/soft/zookeeper-3.4.10

2.3.復制MySQL驅動

cp /opt/soft-install/mysql-connector-java-5.1.32.jar /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0/lib/

2.4.復制Hive的jar

cp /opt/soft/apache-hive-1.2.2-bin/lib/hive-shims-0.23-1.2.2.jar /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0/lib/
cp /opt/soft/apache-hive-1.2.2-bin/lib/hive-common-1.2.2.jar /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0/lib/
cp /opt/soft/apache-hive-1.2.2-bin/lib/hive-shims-common-1.2.2.jar /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0/lib/

3.常用命令

3.1.查看命令

[hadoop@hadoop1 sqoop-1.4.7.bin__hadoop-2.6.0]$ ./bin/sqoop help
Warning: /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0//../hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
Warning: /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0//../accumulo does not exist! Accumulo imports will fail.
Please set $ACCUMULO_HOME to the root of your Accumulo installation.
19/02/14 17:46:41 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7
usage: sqoop COMMAND [ARGS]

Available commands:
  codegen            Generate code to interact with database records
  create-hive-table  Import a table definition into Hive
  eval               Evaluate a SQL statement and display the results
  export             Export an HDFS directory to a database table
  help               List available commands
  import             Import a table from a database to HDFS
  import-all-tables  Import tables from a database to HDFS
  import-mainframe   Import datasets from a mainframe server to HDFS
  job                Work with saved jobs
  list-databases     List available databases on a server
  list-tables        List available tables in a database
  merge              Merge results of incremental imports
  metastore          Run a standalone Sqoop metastore
  version            Display version information

See 'sqoop help COMMAND' for information on a specific command.

3.2.查看版本

[hadoop@hadoop1 sqoop-1.4.7.bin__hadoop-2.6.0]$ ./bin/sqoop version
Warning: /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0//../hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
Warning: /opt/soft/sqoop-1.4.7.bin__hadoop-2.6.0//../accumulo does not exist! Accumulo imports will fail.
Please set $ACCUMULO_HOME to the root of your Accumulo installation.
19/02/14 17:46:51 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7
Sqoop 1.4.7
git commit id 2328971411f57f0cb683dfb79d19d4d19d185dd8
Compiled by maugli on Thu Dec 21 15:59:58 STD 2017

3.3.導入MySQL數據到HDFS

sqoop import   \
--connect jdbc:mysql://hadoop1:3306/mysql  \
--username root  \
--password root   \
--target-dir /data/input/SysCodeType.txt  \
--query 'select id,code_type_num,code_type_name from sys_code_type where $CONDITIONS and is_deleted=0'  \
--split-by  id  \
--fields-terminated-by '\t'  \
-m 1

3.4.導入MySQL數據到Hive

指定行分隔符和列分隔符，指定hive-import，指定覆蓋導入，指定自動創建hive表，指定表名，指定刪除中間結果數據目錄

sqoop import  \
--connect jdbc:mysql://hadoop1:3306/mysql  \
--username root  \
--password root  \
--table sys_code_type  \
--fields-terminated-by "\t"  \
--lines-terminated-by "\n"  \
--hive-import  \
--hive-overwrite  \
--create-hive-table  \
--delete-target-dir \
--hive-database  test \
--hive-table sys_code_type

進入Hive查看結果：

hive> use test;
OK
Time taken: 1.599 seconds
hive> show tables;
OK
person
student
sys_code_type
Time taken: 1.212 seconds, Fetched: 3 row(s)
hive> select * from sys_code_type;
OK
1029197104365404162     XXBXLXB schoolRunType   學校辦學類型表  學校辦學類型表  0       null    null    1027740701250162689     2019-01-21 11:29:06.0   4 null     null

可以看到數據已經導入Hive表了。

3.5導入MySQL數據到Hbase

先在Hbase里創建表

create 'sys_code_type ','f1'

將數據導入到Hbase

sqoop import \
--connect jdbc:mysql://hadoop1:3306/auto_study \
--username root \
--password root \
--table sys_code_type \
--hbase-table sys_code_type \
--column-family f1\
--hbase-row-key id

參考：

• Sqoop學習之路