一：sqoop
二：安装测试
三：测试用例
四：同步策略
五：数据导入
六：sqoop mysql导入hive
- 1：sqoop默认将mysql tinyint修改为hive boolean

一：sqoop

Sqoop(发音：skup)是一款开源的工具，主要用于在Hadoop(Hive)与传统的数据库(mysql、postgresql…)间进行数据的传递，可以将一个关系型数据库（例如： MySQL ,Oracle ,Postgres等）中的数据导进到Hadoop的HDFS中，也可以将HDFS的数据导进到关系型数据库中。

解决近实时业务数据的导入和导出

二：安装测试

1：下载地址

http://mirrors.hust.edu.cn/apache/sqoop/1.4.6/

2：上传安装包sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz到hadoop102的/opt/software路径中
3：解压sqoop安装包到指定目录

tar -zxf sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz -C /opt/module/

4：解压sqoop安装包到指定目录

mv sqoop-1.4.6.bin__hadoop-2.0.4-alpha/ sqoop

5：修改配置文件

1）：进入到/opt/module/sqoop/conf目录，重命名配置文件

cd /opt/module/sqoop/conf
mv sqoop-env-template.sh sqoop-env.sh

2）：修改配置文件

vim sqoop-env.sh 
#增加如下内容
export HADOOP_COMMON_HOME=/opt/module/hadoop-3.1.3
export HADOOP_MAPRED_HOME=/opt/module/hadoop-3.1.3
export HIVE_HOME=/opt/module/hive
export ZOOKEEPER_HOME=/opt/module/zookeeper-3.5.7
export ZOOCFGDIR=/opt/module/zookeeper-3.5.7/conf

3）：拷贝JDBC驱动

I：将mysql-connector-java-5.1.48.jar 上传到/opt/software路径

II：进入到/opt/software/路径，拷贝jdbc驱动到sqoop的lib目录下。

cp mysql-connector-java-5.1.48.jar /opt/module/sqoop/lib/

6：验证Sqoop

bin/sqoop help

出现一些Warning警告（警告信息已省略），并伴随着帮助命令的输出：
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

7：测试Sqoop是否能够成功连接数据库

bin/sqoop list-databases --connect jdbc:mysql://hadoop102:3306/ --username root --password 123456 
#出现如下输出：
information_schema
metastore
mysql
oozie
performance_schema

三：测试用例

1：将user_info 表中的 id, login_name, nick_name 字段的值导入到HDFS中，要求只导入id 大于等于100 小于等于200的数据

sqoop import \
--connect jdbc:mysql://hadoop102:3306/gmall \
--username root \
--password 123456 \
--table user_info \
--columns id,login_name,nick_name \
--where "id >=100 and id <=200" \
--target-dir /testsqoop \
--delete-target-dir \
--num-mappers 2 \
--fields-terminated-by "\t" 
#或者
sqoop import \
--connect jdbc:mysql://hadoop102:3306/gmall \
--username root \
--password 123456 \
--query "select id,login_name,nick_name from user_info where id >=100 and id <=200 and \$CONDITIONS " \
--target-dir /testsqoop \
--delete-target-dir \
--num-mappers 2 \
--split-by id \
--fields-terminated-by "\t" 
#select id,login_name,nick_name from user_info where id >=100 and id <=200  and id <=149
#select id,login_name,nick_name from user_info where id >=100 and id <=200  and id >=150
#select id,login_name,nick_name from user_info where id >=100 and id <=200 and \$CONDITIONS
#select id,login_name,nick_name from user_info where 1=1 and  \$CONDITIONS

四：同步策略

数据同步策略的类型包括：全量同步、增量同步、新增及变化同步、特殊情况
全量表：存储完整的数据。
增量表：存储新增加的数据。
新增及变化表：存储新增加的数据和变化的数据。
特殊表：只需要存储一次。

1：全量同步策略

2：:增量同步策略

3：新增及变化策略

4：特殊策略

某些特殊的表，可不必遵循上述同步策略。
例如没变化的客观世界的数据（比如性别，地区，民族，政治成分，鞋子尺码）可以只存一份。

五：数据导入

1：业务数据导入HDFS

1）：分析表同步策略

在生产环境，个别小公司，为了简单处理，所有表全量导入。
中大型公司，由于数据量比较大，还是严格按照同步策略导入数据。

2：hdfs lzo压缩解压缩配置

cd /opt/module/hadoop-3.1.3/share/hadoop/common
mv hadoop-lzo-0.4.20.jar

修改core-site.xml

cd /opt/module/hadoop-3.1.3/etc/hadoop
vim core-site.xml
#增加内容

<property>
        <name>io.compression.codecs</name>
    <value>
        org.apache.hadoop.io.compress.GzipCodec,
        org.apache.hadoop.io.compress.DefaultCodec,
        org.apache.hadoop.io.compress.BZip2Codec,
        org.apache.hadoop.io.compress.SnappyCodec,
        com.hadoop.compression.lzo.LzoCodec,
        com.hadoop.compression.lzo.LzopCodec
    </value>
</property>
<property>
    <name>io.compression.codec.lzo.class</name>
    <value>com.hadoop.compression.lzo.LzoCodec</value>
</property>

3：业务数据首日同步脚本

1）：脚本编写

cd /home/atguigu/bin
vim mysql_to_hdfs_init.sh 
#内容如下

#! /bin/bash

APP=gmall
#sqoop命令
sqoop=/opt/module/sqoop/bin/sqoop

# 如果是输入的日期按照取输入日期；如果没输入日期取当前时间的前一天
if [ -n "$2" ] ;then
   do_date=$2
else 
   echo "请传入日期参数"
   exit
fi 

import_data(){
$sqoop import \
--connect jdbc:mysql://hadoop102:3306/$APP \
--username root \
--password 123456 \
--target-dir /origin_data/$APP/db/$1/$do_date \
--delete-target-dir \
--query "$2 where \$CONDITIONS" \
--num-mappers 1 \
--fields-terminated-by '\t' \
--compress \
--compression-codec lzop \
--null-string '\\N' \
--null-non-string '\\N'

hadoop jar /opt/module/hadoop-3.1.3/share/hadoop/common/hadoop-lzo-0.4.20.jar com.hadoop.compression.lzo.DistributedLzoIndexer /origin_data/$APP/db/$1/$do_date
}

import_order_info(){
  import_data order_info "select
                            id, 
                            total_amount, 
                            order_status, 
                            user_id, 
                            payment_way,
                            delivery_address,
                            out_trade_no, 
                            create_time, 
                            operate_time,
                            expire_time,
                            tracking_no,
                            province_id,
                            activity_reduce_amount,
                            coupon_reduce_amount,                            
                            original_total_amount,
                            feight_fee,
                            feight_fee_reduce      
                        from order_info"
}

import_coupon_use(){
  import_data coupon_use "select
                          id,
                          coupon_id,
                          user_id,
                          order_id,
                          coupon_status,
                          get_time,
                          using_time,
                          used_time,
                          expire_time
                        from coupon_use"
}

import_order_status_log(){
  import_data order_status_log "select
                                  id,
                                  order_id,
                                  order_status,
                                  operate_time
                                from order_status_log"
}

import_user_info(){
  import_data "user_info" "select 
                            id,
                            login_name,
                            nick_name,
                            name,
                            phone_num,
                            email,
                            user_level, 
                            birthday,
                            gender,
                            create_time,
                            operate_time
                          from user_info"
}

import_order_detail(){
  import_data order_detail "select 
                              id,
                              order_id, 
                              sku_id,
                              sku_name,
                              order_price,
                              sku_num, 
                              create_time,
                              source_type,
                              source_id,
                              split_total_amount,
                              split_activity_amount,
                              split_coupon_amount
                            from order_detail"
}

import_payment_info(){
  import_data "payment_info"  "select 
                                id,  
                                out_trade_no, 
                                order_id, 
                                user_id, 
                                payment_type, 
                                trade_no, 
                                total_amount,  
                                subject, 
                                payment_status,
                                create_time,
                                callback_time 
                              from payment_info"
}

import_comment_info(){
  import_data comment_info "select
                              id,
                              user_id,
                              sku_id,
                              spu_id,
                              order_id,
                              appraise,
                              create_time
                            from comment_info"
}

import_order_refund_info(){
  import_data order_refund_info "select
                                id,
                                user_id,
                                order_id,
                                sku_id,
                                refund_type,
                                refund_num,
                                refund_amount,
                                refund_reason_type,
                                refund_status,
                                create_time
                              from order_refund_info"
}

import_sku_info(){
  import_data sku_info "select 
                          id,
                          spu_id,
                          price,
                          sku_name,
                          sku_desc,
                          weight,
                          tm_id,
                          category3_id,
                          is_sale,
                          create_time
                        from sku_info"
}

import_base_category1(){
  import_data "base_category1" "select 
                                  id,
                                  name 
                                from base_category1"
}

import_base_category2(){
  import_data "base_category2" "select
                                  id,
                                  name,
                                  category1_id 
                                from base_category2"
}

import_base_category3(){
  import_data "base_category3" "select
                                  id,
                                  name,
                                  category2_id
                                from base_category3"
}

import_base_province(){
  import_data base_province "select
                              id,
                              name,
                              region_id,
                              area_code,
                              iso_code,
                              iso_3166_2
                            from base_province"
}

import_base_region(){
  import_data base_region "select
                              id,
                              region_name
                            from base_region"
}

import_base_trademark(){
  import_data base_trademark "select
                                id,
                                tm_name
                              from base_trademark"
}

import_spu_info(){
  import_data spu_info "select
                            id,
                            spu_name,
                            category3_id,
                            tm_id
                          from spu_info"
}

import_favor_info(){
  import_data favor_info "select
                          id,
                          user_id,
                          sku_id,
                          spu_id,
                          is_cancel,
                          create_time,
                          cancel_time
                        from favor_info"
}

import_cart_info(){
  import_data cart_info "select
                        id,
                        user_id,
                        sku_id,
                        cart_price,
                        sku_num,
                        sku_name,
                        create_time,
                        operate_time,
                        is_ordered,
                        order_time,
                        source_type,
                        source_id
                      from cart_info"
}

import_coupon_info(){
  import_data coupon_info "select
                          id,
                          coupon_name,
                          coupon_type,
                          condition_amount,
                          condition_num,
                          activity_id,
                          benefit_amount,
                          benefit_discount,
                          create_time,
                          range_type,
                          limit_num,
                          taken_count,
                          start_time,
                          end_time,
                          operate_time,
                          expire_time
                        from coupon_info"
}

import_activity_info(){
  import_data activity_info "select
                              id,
                              activity_name,
                              activity_type,
                              start_time,
                              end_time,
                              create_time
                            from activity_info"
}

import_activity_rule(){
    import_data activity_rule "select
                                    id,
                                    activity_id,
                                    activity_type,
                                    condition_amount,
                                    condition_num,
                                    benefit_amount,
                                    benefit_discount,
                                    benefit_level
                                from activity_rule"
}

import_base_dic(){
    import_data base_dic "select
                            dic_code,
                            dic_name,
                            parent_code,
                            create_time,
                            operate_time
                          from base_dic"
}


import_order_detail_activity(){
    import_data order_detail_activity "select
                                                                id,
                                                                order_id,
                                                                order_detail_id,
                                                                activity_id,
                                                                activity_rule_id,
                                                                sku_id,
                                                                create_time
                                                            from order_detail_activity"
}


import_order_detail_coupon(){
    import_data order_detail_coupon "select
                                                                id,
                                                                                order_id,
                                                                order_detail_id,
                                                                coupon_id,
                                                                coupon_use_id,
                                                                sku_id,
                                                                create_time
                                                            from order_detail_coupon"
}


import_refund_payment(){
    import_data refund_payment "select
                                                        id,
                                                        out_trade_no,
                                                        order_id,
                                                        sku_id,
                                                        payment_type,
                                                        trade_no,
                                                        total_amount,
                                                        subject,
                                                        refund_status,
                                                        create_time,
                                                        callback_time
                                                    from refund_payment"                                                    

}

import_sku_attr_value(){
    import_data sku_attr_value "select
                                                    id,
                                                    attr_id,
                                                    value_id,
                                                    sku_id,
                                                    attr_name,
                                                    value_name
                                                from sku_attr_value"
}


import_sku_sale_attr_value(){
    import_data sku_sale_attr_value "select
                                                            id,
                                                            sku_id,
                                                            spu_id,
                                                            sale_attr_value_id,
                                                            sale_attr_id,
                                                            sale_attr_name,
                                                            sale_attr_value_name
                                                        from sku_sale_attr_value"
}

case $1 in
  "order_info")
     import_order_info
;;
  "base_category1")
     import_base_category1
;;
  "base_category2")
     import_base_category2
;;
  "base_category3")
     import_base_category3
;;
  "order_detail")
     import_order_detail
;;
  "sku_info")
     import_sku_info
;;
  "user_info")
     import_user_info
;;
  "payment_info")
     import_payment_info
;;
  "base_province")
     import_base_province
;;
  "base_region")
     import_base_region
;;
  "base_trademark")
     import_base_trademark
;;
  "activity_info")
      import_activity_info
;;
  "cart_info")
      import_cart_info
;;
  "comment_info")
      import_comment_info
;;
  "coupon_info")
      import_coupon_info
;;
  "coupon_use")
      import_coupon_use
;;
  "favor_info")
      import_favor_info
;;
  "order_refund_info")
      import_order_refund_info
;;
  "order_status_log")
      import_order_status_log
;;
  "spu_info")
      import_spu_info
;;
  "activity_rule")
      import_activity_rule
;;
  "base_dic")
      import_base_dic
;;
  "order_detail_activity")
      import_order_detail_activity
;;
  "order_detail_coupon")
      import_order_detail_coupon
;;
  "refund_payment")
      import_refund_payment
;;
  "sku_attr_value")
      import_sku_attr_value
;;
  "sku_sale_attr_value")
      import_sku_sale_attr_value
;;
  "all")
   import_base_category1
   import_base_category2
   import_base_category3
   import_order_info
   import_order_detail
   import_sku_info
   import_user_info
   import_payment_info
   import_base_region
   import_base_province
   import_base_trademark
   import_activity_info
   import_cart_info
   import_comment_info
   import_coupon_use
   import_coupon_info
   import_favor_info
   import_order_refund_info
   import_order_status_log
   import_spu_info
   import_activity_rule
   import_base_dic
   import_order_detail_activity
   import_order_detail_coupon
   import_refund_payment
   import_sku_attr_value
   import_sku_sale_attr_value
;;
esac

说明1： [ -n 变量值 ] 判断变量的值，是否为空 — 变量的值，非空，返回true — 变量的值，为空，返回false 说明2：查看date命令的使用，[atguigu@hadoop102 ~]$ date —help

2）：增加脚本执行权限

chmod 777 mysql_to_hdfs_init.sh

3）：脚本使用

mysql_to_hdfs_init.sh all 2020-06-14

4：业务数据每日同步脚本

1）：脚本编写

cd /home/atguigu/bin
vim mysql_to_hdfs.sh
#内容如下

#! /bin/bash

APP=gmall
sqoop=/opt/module/sqoop/bin/sqoop

if [ -n "$2" ] ;then
    do_date=$2
else
    do_date=`date -d '-1 day' +%F`
fi

import_data(){
$sqoop import \
--connect jdbc:mysql://hadoop102:3306/$APP \
--username root \
--password 123456 \
--target-dir /origin_data/$APP/db/$1/$do_date \
--delete-target-dir \
--query "$2 and  \$CONDITIONS" \
--num-mappers 1 \
--fields-terminated-by '\t' \
--compress \
--compression-codec lzop \
--null-string '\\N' \
--null-non-string '\\N'

hadoop jar /opt/module/hadoop-3.1.3/share/hadoop/common/hadoop-lzo-0.4.20.jar com.hadoop.compression.lzo.DistributedLzoIndexer /origin_data/$APP/db/$1/$do_date
}

import_order_info(){
  import_data order_info "select
                            id, 
                            total_amount, 
                            order_status, 
                            user_id, 
                            payment_way,
                            delivery_address,
                            out_trade_no, 
                            create_time, 
                            operate_time,
                            expire_time,
                            tracking_no,
                            province_id,
                            activity_reduce_amount,
                            coupon_reduce_amount,                            
                            original_total_amount,
                            feight_fee,
                            feight_fee_reduce      
                        from order_info
                        where (date_format(create_time,'%Y-%m-%d')='$do_date' 
                        or date_format(operate_time,'%Y-%m-%d')='$do_date')"
}

import_coupon_use(){
  import_data coupon_use "select
                          id,
                          coupon_id,
                          user_id,
                          order_id,
                          coupon_status,
                          get_time,
                          using_time,
                          used_time,
                          expire_time
                        from coupon_use
                        where (date_format(get_time,'%Y-%m-%d')='$do_date'
                        or date_format(using_time,'%Y-%m-%d')='$do_date'
                        or date_format(used_time,'%Y-%m-%d')='$do_date'
                        or date_format(expire_time,'%Y-%m-%d')='$do_date')"
}

import_order_status_log(){
  import_data order_status_log "select
                                  id,
                                  order_id,
                                  order_status,
                                  operate_time
                                from order_status_log
                                where date_format(operate_time,'%Y-%m-%d')='$do_date'"
}

import_user_info(){
  import_data "user_info" "select 
                            id,
                            login_name,
                            nick_name,
                            name,
                            phone_num,
                            email,
                            user_level, 
                            birthday,
                            gender,
                            create_time,
                            operate_time
                          from user_info 
                          where (DATE_FORMAT(create_time,'%Y-%m-%d')='$do_date' 
                          or DATE_FORMAT(operate_time,'%Y-%m-%d')='$do_date')"
}

import_order_detail(){
  import_data order_detail "select 
                              id,
                              order_id, 
                              sku_id,
                              sku_name,
                              order_price,
                              sku_num, 
                              create_time,
                              source_type,
                              source_id,
                              split_total_amount,
                              split_activity_amount,
                              split_coupon_amount
                            from order_detail 
                            where DATE_FORMAT(create_time,'%Y-%m-%d')='$do_date'"
}

import_payment_info(){
  import_data "payment_info"  "select 
                                id,  
                                out_trade_no, 
                                order_id, 
                                user_id, 
                                payment_type, 
                                trade_no, 
                                total_amount,  
                                subject, 
                                payment_status,
                                create_time,
                                callback_time 
                              from payment_info 
                              where (DATE_FORMAT(create_time,'%Y-%m-%d')='$do_date' 
                              or DATE_FORMAT(callback_time,'%Y-%m-%d')='$do_date')"
}

import_comment_info(){
  import_data comment_info "select
                              id,
                              user_id,
                              sku_id,
                              spu_id,
                              order_id,
                              appraise,
                              create_time
                            from comment_info
                            where date_format(create_time,'%Y-%m-%d')='$do_date'"
}

import_order_refund_info(){
  import_data order_refund_info "select
                                id,
                                user_id,
                                order_id,
                                sku_id,
                                refund_type,
                                refund_num,
                                refund_amount,
                                refund_reason_type,
                                refund_status,
                                create_time
                              from order_refund_info
                              where date_format(create_time,'%Y-%m-%d')='$do_date'"
}

import_sku_info(){
  import_data sku_info "select 
                          id,
                          spu_id,
                          price,
                          sku_name,
                          sku_desc,
                          weight,
                          tm_id,
                          category3_id,
                          is_sale,
                          create_time
                        from sku_info where 1=1"
}

import_base_category1(){
  import_data "base_category1" "select 
                                  id,
                                  name 
                                from base_category1 where 1=1"
}

import_base_category2(){
  import_data "base_category2" "select
                                  id,
                                  name,
                                  category1_id 
                                from base_category2 where 1=1"
}

import_base_category3(){
  import_data "base_category3" "select
                                  id,
                                  name,
                                  category2_id
                                from base_category3 where 1=1"
}

import_base_province(){
  import_data base_province "select
                              id,
                              name,
                              region_id,
                              area_code,
                              iso_code,
                              iso_3166_2
                            from base_province
                            where 1=1"
}

import_base_region(){
  import_data base_region "select
                              id,
                              region_name
                            from base_region
                            where 1=1"
}

import_base_trademark(){
  import_data base_trademark "select
                                id,
                                tm_name
                              from base_trademark
                              where 1=1"
}

import_spu_info(){
  import_data spu_info "select
                            id,
                            spu_name,
                            category3_id,
                            tm_id
                          from spu_info
                          where 1=1"
}

import_favor_info(){
  import_data favor_info "select
                          id,
                          user_id,
                          sku_id,
                          spu_id,
                          is_cancel,
                          create_time,
                          cancel_time
                        from favor_info
                        where 1=1"
}

import_cart_info(){
  import_data cart_info "select
                        id,
                        user_id,
                        sku_id,
                        cart_price,
                        sku_num,
                        sku_name,
                        create_time,
                        operate_time,
                        is_ordered,
                        order_time,
                        source_type,
                        source_id
                      from cart_info
                      where 1=1"
}

import_coupon_info(){
  import_data coupon_info "select
                          id,
                          coupon_name,
                          coupon_type,
                          condition_amount,
                          condition_num,
                          activity_id,
                          benefit_amount,
                          benefit_discount,
                          create_time,
                          range_type,
                          limit_num,
                          taken_count,
                          start_time,
                          end_time,
                          operate_time,
                          expire_time
                        from coupon_info
                        where 1=1"
}

import_activity_info(){
  import_data activity_info "select
                              id,
                              activity_name,
                              activity_type,
                              start_time,
                              end_time,
                              create_time
                            from activity_info
                            where 1=1"
}

import_activity_rule(){
    import_data activity_rule "select
                                    id,
                                    activity_id,
                                    activity_type,
                                    condition_amount,
                                    condition_num,
                                    benefit_amount,
                                    benefit_discount,
                                    benefit_level
                                from activity_rule
                                where 1=1"
}

import_base_dic(){
    import_data base_dic "select
                            dic_code,
                            dic_name,
                            parent_code,
                            create_time,
                            operate_time
                          from base_dic
                          where 1=1"
}


import_order_detail_activity(){
    import_data order_detail_activity "select
                                                                id,
                                                                order_id,
                                                                order_detail_id,
                                                                activity_id,
                                                                activity_rule_id,
                                                                sku_id,
                                                                create_time
                                                            from order_detail_activity
                                                            where date_format(create_time,'%Y-%m-%d')='$do_date'"
}


import_order_detail_coupon(){
    import_data order_detail_coupon "select
                                                                id,
                                                                                order_id,
                                                                order_detail_id,
                                                                coupon_id,
                                                                coupon_use_id,
                                                                sku_id,
                                                                create_time
                                                            from order_detail_coupon
                                                            where date_format(create_time,'%Y-%m-%d')='$do_date'"
}


import_refund_payment(){
    import_data refund_payment "select
                                                        id,
                                                        out_trade_no,
                                                        order_id,
                                                        sku_id,
                                                        payment_type,
                                                        trade_no,
                                                        total_amount,
                                                        subject,
                                                        refund_status,
                                                        create_time,
                                                        callback_time
                                                    from refund_payment
                                                    where (DATE_FORMAT(create_time,'%Y-%m-%d')='$do_date' 
                                                    or DATE_FORMAT(callback_time,'%Y-%m-%d')='$do_date')"                                                    

}

import_sku_attr_value(){
    import_data sku_attr_value "select
                                                    id,
                                                    attr_id,
                                                    value_id,
                                                    sku_id,
                                                    attr_name,
                                                    value_name
                                                from sku_attr_value
                                                where 1=1"
}


import_sku_sale_attr_value(){
    import_data sku_sale_attr_value "select
                                                            id,
                                                            sku_id,
                                                            spu_id,
                                                            sale_attr_value_id,
                                                            sale_attr_id,
                                                            sale_attr_name,
                                                            sale_attr_value_name
                                                        from sku_sale_attr_value
                                                        where 1=1"
}

case $1 in
  "order_info")
     import_order_info
;;
  "base_category1")
     import_base_category1
;;
  "base_category2")
     import_base_category2
;;
  "base_category3")
     import_base_category3
;;
  "order_detail")
     import_order_detail
;;
  "sku_info")
     import_sku_info
;;
  "user_info")
     import_user_info
;;
  "payment_info")
     import_payment_info
;;
  "base_province")
     import_base_province
;;
  "activity_info")
      import_activity_info
;;
  "cart_info")
      import_cart_info
;;
  "comment_info")
      import_comment_info
;;
  "coupon_info")
      import_coupon_info
;;
  "coupon_use")
      import_coupon_use
;;
  "favor_info")
      import_favor_info
;;
  "order_refund_info")
      import_order_refund_info
;;
  "order_status_log")
      import_order_status_log
;;
  "spu_info")
      import_spu_info
;;
  "activity_rule")
      import_activity_rule
;;
  "base_dic")
      import_base_dic
;;
  "order_detail_activity")
      import_order_detail_activity
;;
  "order_detail_coupon")
      import_order_detail_coupon
;;
  "refund_payment")
      import_refund_payment
;;
  "sku_attr_value")
      import_sku_attr_value
;;
  "sku_sale_attr_value")
      import_sku_sale_attr_value
;;
"all")
   import_base_category1
   import_base_category2
   import_base_category3
   import_order_info
   import_order_detail
   import_sku_info
   import_user_info
   import_payment_info
   import_base_trademark
   import_activity_info
   import_cart_info
   import_comment_info
   import_coupon_use
   import_coupon_info
   import_favor_info
   import_order_refund_info
   import_order_status_log
   import_spu_info
   import_activity_rule
   import_base_dic
   import_order_detail_activity
   import_order_detail_coupon
   import_refund_payment
   import_sku_attr_value
   import_sku_sale_attr_value
;;
esac

2）：增加脚本执行权限

chmod 777 mysql_to_hdfs.sh

3）：脚本使用

mysql_to_hdfs.sh all 2020-06-15

4）：注意

Hive中的Null在底层是以“\N”来存储，而MySQL中的Null在底层就是Null，为了保证数据两端的一致性。在导出数据时采用—input-null-string和—input-null-non-string两个参数。导入数据时采用—null-string和—null-non-string。

5）：hdfs lzo压缩解压缩配置

hadoop jar /opt/module/hadoop-3.1.3/share/hadoop/common/hadoop-lzo-0.4.20.jar com.hadoop.compression.lzo.DistributedLzoIndexer /origin_data/$APP/db/$1/$do_date

六：sqoop mysql导入hive

FAQ：

1：sqoop默认将mysql tinyint修改为hive boolean

解决：mysql数据连接新增参数&tinyInt1isBit=false 注意shell 脚本需要将&转意\&

hadoop3.X

十二：sqoop

一：sqoop

二：安装测试

1：下载地址

2：上传安装包sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz到hadoop102的/opt/software路径中
3：解压sqoop安装包到指定目录

4：解压sqoop安装包到指定目录

5：修改配置文件

1）：进入到/opt/module/sqoop/conf目录，重命名配置文件

2）：修改配置文件

3）：拷贝JDBC驱动

I：将mysql-connector-java-5.1.48.jar 上传到/opt/software路径

II：进入到/opt/software/路径，拷贝jdbc驱动到sqoop的lib目录下。

6：验证Sqoop

7：测试Sqoop是否能够成功连接数据库

三：测试用例

四：同步策略

1：全量同步策略

2：:增量同步策略

3：新增及变化策略

4：特殊策略

五：数据导入

1：业务数据导入HDFS

1）：分析表同步策略

2：hdfs lzo压缩解压缩配置

修改core-site.xml

3：业务数据首日同步脚本

1）：脚本编写

2）：增加脚本执行权限

3）：脚本使用

4：业务数据每日同步脚本

1）：脚本编写

2）：增加脚本执行权限

3）：脚本使用

4）：注意

5）：hdfs lzo压缩解压缩配置

六：sqoop mysql导入hive

1：sqoop默认将mysql tinyint修改为hive boolean

十二：sqoop

一：sqoop

二：安装测试

1：下载地址

2：上传安装包sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz到hadoop102的/opt/software路径中3：解压sqoop安装包到指定目录

4：解压sqoop安装包到指定目录

5：修改配置文件

1）：进入到/opt/module/sqoop/conf目录，重命名配置文件

2）：修改配置文件

3）： 拷贝JDBC驱动

I：将mysql-connector-java-5.1.48.jar 上传到/opt/software路径

II：进入到/opt/software/路径，拷贝jdbc驱动到sqoop的lib目录下。

6：验证Sqoop

7：测试Sqoop是否能够成功连接数据库

三：测试用例

四：同步策略

1：全量同步策略

2：:增量同步策略

3：新增及变化策略

4：特殊策略

五：数据导入

1：业务数据导入HDFS

1）：分析表同步策略

2：hdfs lzo压缩解压缩配置

修改core-site.xml

3：业务数据首日同步脚本

1）：脚本编写

2）：增加脚本执行权限

3）：脚本使用

4：业务数据每日同步脚本

1）：脚本编写

2）：增加脚本执行权限

3）：脚本使用

4）：注意

5）：hdfs lzo压缩解压缩配置

六：sqoop mysql导入hive

1：sqoop默认将mysql tinyint修改为hive boolean

2：上传安装包sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz到hadoop102的/opt/software路径中
3：解压sqoop安装包到指定目录

3）：拷贝JDBC驱动