HBase概述

HBase 是一种分布式、高可靠性、高性能、面向列、可伸缩的 NoSQL 数据库。Hadoop HDFS为HBase提供了高可靠性的底层存储支持，Hadoop MapReduce为HBase提供了高性能的计算能力，Zookeeper为HBase提供了稳定服务和failover机制。

HBase集群安装

Hadoop安装与配置

创建虚拟机hadoop102，并完成相应配置
安装epel-release
```
yum install -y epel-release
```

关闭防火墙，关闭防火墙开机自启

systemctl stop firewalld
systemctl disable firewalld.service

配置ycx用户具有root权限，方便后期执行root权限的命令
```
vim /etc/sudoers

ycx     ALL=(ALL)     NOPASSWD:ALL
```
在/opt目录下创建software和module文件夹，并修改所属主和所属组

卸载虚拟机自带JDK

rpm -qa | grep -i java | xargs -n1 rpm -e --nodeps

利用hadoop102克隆虚拟机hadoop103和hadoop104
修改三台虚拟机为静态IP，以hadoop102为例
```
vim /etc/sysconfig/network-scripts/ifcfg-ens33
```
?设置VMware的网络虚拟编辑器
修改Windows系统适配器VMware Network Adapter VMnet8的IP地址
修改主机名称，配置Linux克隆机主机名称映射hosts文件，配置windows的主机映射hosts文件
```
192.168.10.102 hadoop102
192.168.10.103 hadoop103
192.168.10.104 hadoop104
```
安装xshell和xftp，并与三台虚拟机建立连接，并将JDK和hadoop所需的压缩包下载拷贝到虚拟机中

为hadoop102安装JDK，并配置环境变量,同时编写xsync分发脚本，将JDK分发至hadoop103和hadoop104

tar -zxvf jdk-8u212-linux-x64.tar.gz -C /opt/module/
sudo vim /etc/profile.d/my_env.sh

#JAVA_HOME
export JAVA_HOME=/opt/module/jdk1.8.0_212
export PATH=$PATH:$JAVA_HOME/bin

source /etc/profile

xsync分发脚本：
#!/bin/bash

if [ $# -lt 1 ]
then
    echo Not Enough Arguement!
    exit;
fi

for host in hadoop102 hadoop103 hadoop104
do
    echo ====================  $host  ====================
    for file in $@
    do
        if [ -e $file ]
            then
                pdir=$(cd -P $(dirname $file); pwd)
                fname=$(basename $file)
                ssh $host "mkdir -p $pdir"
                rsync -av $pdir/$fname $host:$pdir
            else
                echo $file does not exists!
        fi
    done
done

chmod 777 xsync

xsync /opt/module/
sudo ./bin/xsync /etc/profile.d/my_env.sh

?为hadoop102安装hadoop，并配置环境变量,同时分发至hadoop103、hadoop104

tar -zxvf hadoop-3.1.3.tar.gz -C /opt/module/
sudo vim /etc/profile.d/my_env.sh

#HADOOP_HOME
export HADOOP_HOME=/opt/module/hadoop-3.1.3
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin

source /etc/profile

xsync /opt/module/
sudo ./bin/xsync /etc/profile.d/my_env.sh

为hadoop102、hadoop103、hadoop104配置SSH免密登录

hadoop102:
ssh-keygen -t rsa
ssh-copy-id hadoop102
ssh-copy-id hadoop103
ssh-copy-id hadoop104

配置集群

core-site.xml：

    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://hadoop102:8020</value>
    </property>

    <property>
        <name>hadoop.tmp.dir</name>
        <value>/opt/module/hadoop-3.1.3/data</value>
    </property>

    <property>
        <name>hadoop.http.staticuser.user</name>
        <value>ycx</value>
    </property>

hdfs-site.xml:

    <property>
        <name>dfs.namenode.http-address</name>
        <value>hadoop102:9870</value>
    </property>

    <property>
        <name>dfs.namenode.secondary.http-address</name>
        <value>hadoop104:9868</value>
    </property>

yarn-site.xml:

    <property>
        <name>yarn.nodemanager.aux-services</name>
        <value>mapreduce_shuffle</value>
    </property>

    <property>
        <name>yarn.resourcemanager.hostname</name>
        <value>hadoop103</value>
    </property>

    <property>
        <name>yarn.nodemanager.env-whitelist</name>
        <value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAPRED_HOME</value>
    </property>

mapred-site.xml:

    <property>
        <name>mapreduce.framework.name</name>
        <value>yarn</value>
    </property>

workers:

hadoop102
hadoop103
hadoop104


xsync /opt/module/hadoop-3.1.3/etc/hadoop/

?启动集群

hdfs namenode -format
sbin/start-dfs.sh
sbin/start-yarn.sh

ZooKeeper安装与配置

下载ZooKeeper安装包，并利用xftp拷贝至虚拟机中

解压安装包

tar -zxvf apache-zookeeper-3.5.7-bin.tar.gz -C /opt/module/

配置ZooKeeper?

mv zoo_sample.cfg zoo.cfg
mkdir zkData
vim myid

myid文件：
hadoop102为2
hadoop103为3
hadoop104为4

xsync apache-zookeeper-3.5.7-bin/
vim zoo.cfg

将zoo.cfg中的dataDir修改为/opt/module/zkData,并添加
server.2=hadoop102:2888:3888
server.3=hadoop103:2888:3888
server.4=hadoop104:2888:3888

xsync zoo.cfg

启动ZooKeeper
```
bin/zkServer .sh start
bin/zkCli.sh
```

Hbase安装与配置

下载Hbase安装包，并利用xftp拷贝至虚拟机中

解压安装包

tar -zxvf hbase-2.3.6-bin.tar.gz -C /opt/module

配置Hbase

hbase-env.sh:

export JAVA_HOME=/opt/module/jdk1.8.0_212
export HBASE_MANAGES_ZK=false

hbase-site.xml:

<property>
  <name>hbase.cluster.distributed</name>
  <value>true</value>
</property>

<property>
  <name>hbase.master.port</name>
  <value>16000</value>
</property>

<property>
  <name>hbase.wal.provider</name>
  <value>filesystem</value>
</property>

<property>
  <name>hbase.zookeeper.quorum</name>
  <value>hadoop102,hadoop103,hadoop104</value>
</property>

<property>
  <name>hbase.zookeeper.property.dataDir</name>
  <value>/opt/module/zkData</value>
</property>

regionservers:
hadoop102
hadoop103
hadoop104

ln -s /opt/module/hadoop-3.1.3/etc/hadoop/core-site.xml /opt/module/hbase/conf/core- site.xml
ln -s /opt/module/hadoop-3.1.3/etc/hadoop/hdfs-site.xml /opt/module/hbase/conf/hdfs-site.xml

xsync hbase-2.3.6/