关于大数据:HadoopHbase伪集群安装步骤

Hbase 和 Hadoop 和 jdk 版本肯定要对应, 不然很容易出错

Hbase 和 jdk 版本对应关系

Hbase 和 Hadoop 版本对应关系

Hase 下载地址: https://hbase.apache.org/down…
Hadoop 下载地址: https://hadoop.apache.org/rel…
jdk 版本 1.8

hadoop-3.2.1.tar.gz
hbase-2.3.1-bin.tar.gz

1. 装置 hadoop

> tar -xzvf hadoop-3.2.1.tar.gz
// 批改配置文件
> cd hadoop-3.2.1/etc/hadoop

// 创立 /usr/local/hadoop 目录

> mkdir /usr/local/hadoop

> vim hadoop-env.sh
// 增加 JAVA_HOME
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.252.b09-2.el7_8.x86_64

> vim hdsf-site.xml
<configuration>
    <property>
        <name>dfs.replication</name>
        <value>1</value>
    </property>
    <property>
        <name>dfs.namenode.name.dir</name>
        <value>file:/usr/local/hadoop/tmp/dfs/name</value>
    </property>
    <property>
        <name>dfs.datanode.data.dir</name>
        <value>file:/usr/local/hadoop/tmp/dfs/data</value>
    </property>
</configuration>

> vim core-site.xml

<configuration>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>file:/usr/local/hadoop/tmp</value>
        <description>Abase for other temporary directories.</description>
    </property>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://localhost:9000</value>
    </property>
</configuration>

1. 执行 NameNode 的格式化

> /root/hadoop/hadoop-3.2.1/bin/hdfs namenode -format

1. 启动 hdfs

> /root/hadoop/hadoop-3.2.1/sbin/start-dfs.sh

谬误一:

WARNING: HADOOP_SECURE_DN_USER has been replaced by HDFS_DATANODE_SECURE_USER. Using value of HADOOP_SECURE_DN_USER.
hadoop1: ssh: Could not resolve hostname 

> hostname
hadoop1
vim /etc/hosts
127.0.0.1 hadoop1 // 增加


谬误二:
localhost: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).

> ssh localhost
// 首次登陆须要输出 yes
// 输出明码

1. 设置无明码登陆
// 退出方才的登陆, 留神此时还在服务器上, 并没有退回到本地
> exit
> cd ~/.ssh
> ssh-keygen -t rsa
> cat ./id_rsa.pub >> ./authorized_keys
> chmod 700 ~/.ssh
> chmod 644 ~/.ssh/authorized_keys

// .ssh 须要是 700 权限
// authorized_keys 须要是 644 权限


谬误三:
ERROR: Attempting to operate on hdfs namenode as root
> vim /root/hadoop/hadoop-3.2.1/etc/hadoop/hadoop-env.sh
// 头部增加
export HDFS_DATANODE_USER=root
export HADOOP_SECURE_DN_USER=hdfs
export HDFS_NAMENODE_USER=root
export HDFS_SECONDARYNAMENODE_USER=root
export YARN_RESOURCEMANAGER_USER=root


而后重新启动

1. 进入 Hadoop 创立一个文件

> /root/hadoop/hadoop-3.2.1/bin/hdfs dfs -mkdir /test
// 查看
>  /root/hadoop/hadoop-3.2.1/bin/hdfs dfs -ls  /

1. 装置 Hbase

> tar -xzvf hbase-2.3.1-bin.tar.gz
> cd hbase-2.3.1/conf
// 拷贝 Hadoop 中 hdfs-site.xml 和 core-site.xml 到当前目录
> cp ../../hadoop-3.2.1/etc/hadoop/hdfs-site.xml  .
> cp ../../hadoop-3.2.1/etc/hadoop/core-site.xml  .
> vim hbase-env.sh
// 增加 jdk 环境变量
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.252.b09-2.el7_8.x86_64

> vim hbase-size.xml

<configuration>
        <property>
                <name>hbase.rootdir</name>
                <value>hdfs://127.0.0.1:9000/hbase</value>
        </property>
        <property>
                <name>hbase.zookeeper.property.dataDir</name>
                <value>/usr/local/hadoop/zookeeper</value>
        </property>
        <property>
                <name>hbase.cluster.distributed</name>
                <value>true</value>
        </property>
</configuration>

> mkdir /usr/local/hadoop/zookeeper

1. 拜访 Hbase

>/root/hadoop/hbase-2.3.1/bin/hbase shell

1. 网页拜访地址

Hbase: http://xxx:16010/master-status

// 开启 Hadoop 网页拜访
> /root/hadoop/hadoop-3.2.1/sbin/start-yarn.sh

Hadoop: http://xxx:8088/cluster

1. Hadoop 端口大全

// 批改默认端口
> vim /root/hadoop/hadoop-3.2.1/etc/hadoop/yarn-site.xml
// name 能够参照下面的表
<configuration>
  <property>
    <name>yarn.resourcemanager.webapp.address</name>
    <value>xxx:8088</value>
  </property>
</configuration>

// 而后启动或者重启 yarn(资源管理零碎)

> /root/hadoop/hadoop-3.2.1/sbin/start-yarn.sh