hbase单机版安装

CentOS 7镜像准备一台，安装java环境

hbase默认是强依赖zookeeper的，但是在部署单机版hbase的时候，不需要额外独立部署zookeeper，

他会自己在一台机器上启动hbase和zookeeper的，此时不需要hdfs，hbase自动把数据写入本地磁盘里

在服务器上启动一个单机版本的hbase，说白了就是启动一个hbase的jvm进程

1.从网上下载最新版本的包，上传虚拟机

 进入

解压

2.配置java_home 环境变量

 修改conf/hbase-site.sh 这是核心配置文件

找到java安装路径：

[root@MiWiFi-R4CM-srv java]# find / -name "java"

/etc/pki/ca-trust/extracted/java

/etc/pki/java

/etc/java

/etc/alternatives/java

/var/lib/alternatives/java

/usr/bin/java

/usr/lib/java

/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-1.el7_9.x86_64/jre/bin/java

我用echo $JAVA_HOME  都没输出出来东西。

​​yum安装jdk找不到安装目录问题||没有java环境变量 -​​

hbase-site.xml 文件修改

这里主要是基于你的机器情况，设置一下hbase和zookeeper基于的数据目录，告诉他们数据写入到哪个目录里去，下面就是一份最小化配置示例

<configuration>
  <property>
  <!--文件存在哪里-->
    <name>hbase.rootdir</name>
    <value>file:///usr/local/data/hbase</value>
  </property>
  <property>
  <!--单机版zookeeper-->
    <name>hbase.zookeeper.property.dataDir</name>
    <value>/usr/local/data/zookeeper</value>
  </property>
  <property>
   <!--配置本地磁盘配置-->
    <name>hbase.unsafe.stream.capability.enforce</name>
    <value>false</value>
    <description>
      Controls whether HBase will check for stream capabilities (hflush/hsync).

      Disable this if you intend to run on LocalFileSystem, denoted by a rootdir
      with the 'file://' scheme, but be mindful of the NOTE below.

      WARNING: Setting this to false blinds you to potential data loss and
      inconsistent system state in the event of process and/or node failures. If
      HBase is complaining of an inability to use hsync or hflush it's most
      likely not a false positive.
    </description>
  </property>
</configuration>

调用start-hbase.sh

penJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N 
running master, logging to /root/hbase/bin/../logs/hbase-root-master-MiWiFi-R4CM-srv.out 
OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N

提示jvm有些需要调整不影响启动

访问启动的服务的ip+16010端口

http://192.168.31.117:16010/master-status

​​

  ./hbase shell 

进入命令行进行操作

作者：三号小玩家