zoukankan      html  css  js  c++  java
  • mySQL and sqoop for ubuntu

    数据的导入导出

    ——MySQL & sqoop in Ubuntu

    1.完成搭建hadoop集群

    2.安装MySQL

    sudo apt-get install mysql-server mysql-client

    sudo  apt-get  update   //可能要这一句?

    my.cnf -> #bind-address =127.0.0.1

    3.安装Sqoop

    1.解压

    2.profile $SQOOP

    3.conf

    export hadoop balabala home *2

    4.把MySQL启动拷入sqoop/lib

    4.使用命令进行导入

    (文档:sqoop1 、sqoop2使用示例)

    sqoop list-databases --connect --username --password

    sqoop import --target-dir  -m 1

    hdfs<->mysql

    MySQL 安装

    安装

    sudo apt-get install mysql-server mysql-client

    配置cnf

    sudo gedit /etc/mysql/my.cnf    //路径存疑

    //找到如下内容,并注释

    bind-address = 127.0.0.1

    Sqoop 安装

    1.解压

    tar xvf sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz

    2.改profile

    sudo gedit /etc/profile

    加入以下内容

    export SQOOP_HOME=/home/yuqiao/sqoop-1.4.6.bin__hadoop-2.0.4-alpha

    export PATH=$PATH:$SQOOP_HOME/bin

    source /etc/profile

    3. 改sqoop-env.sh

    sudo gedit SQOOP_HOME/conf/sqoop-env.sh

    (如果没有就复制粘贴template)

    加入以下内容:

    #Set path to where bin/hadoop is available

    export HADOOP_COMMON_HOME=/home/hadoop/hadoop-2.7.1

    #Set path to where hadoop-*-core.jar is available

    export HADOOP_MAPRED_HOME=/home/hadoop/hadoop-2.7.1

    4.放入mysql驱动

    把mysql-connector-java-5.1.35.jar放入sqoop的lib文件夹

    4.安装完成后简单验证(显示所有数据库)

                        sqoop list-databases --connect jdbc:mysql://master:3306/ --username root --password 1234

    (password是自己的,其余内容不改)

    如果报错说ERROR 1130: Host master is not allowed to connect to this MySQL server

    就按顺序原封不动(与机子无关)运行下列语句:

    mysql -u root -p

    mysql>use mysql;

    mysql>update user set host = '%'  where user ='root';

    mysql>flush privileges;

    mysql>select 'host','user' from user where user='root';
     GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' with grant option;

    方法来自博客:

    http://www.blogjava.net/brock/archive/2009/04/13/265323.html

    关掉该终端之后,重开,运行之前那句显示所有数据库,即可成功

  • 相关阅读:
    H5实现的时钟
    Hystrix 熔断机制原理
    Redis模块化基本介绍
    Redis Pipeline原理分析
    Redis事务原理分析
    Java NIO原理分析
    Java Reference 源码分析
    JDK AtomicInteger 源码分析
    Java 包装类笔记
    Spring Cache 笔记
  • 原文地址:https://www.cnblogs.com/YuQiao0303/p/9229173.html
Copyright © 2011-2022 走看看