HBase+Zookeeper运行在单机环境下的配置

HBase+Zookeeper运行在单机环境下的配置

1.hbase-site.xml的配置

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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<configuration>
    <property>
        <name>hbase.rootdir</name>
        <value>file:///usr/local/hbase-1.4.0/data-tmp</value>
    </property>
    <property>
        <name>hbase.zookeeper.quorum</name>  
        <value>localhost</value>  
    </property>

    <property>
        <name>hbase.zookeeper.property.clientPort</name>
        <value>2181</value>
    </property>

    <property>
        <name>hbase.zookeeper.property.dataDir</name>  
        <value>/tmp/zookeeper</value>  
    </property>

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

    <property>
        <name>zookeeper.znode.parent</name>
        <value>/hbase</value>
    </property>
</configuration>

注意的环节：

• 1.其一，一定要加上“伪分布：hbase.cluster.distributed”的这个<property>标签，否则即使是单机的分布【虽然是单机，但是并没有使用HBase自带的zookeeper】，所以理论上还是应该使用伪分布式的搭配。
• 2.其二，hbase.rootdir这个属性的值在笔者的环境下是file:///usr/local/hbase-1.4.0/data-tmp，并没有使用到hdfs来存储。也就意味着不需要事先启动hdfs。但是如果将这个目录改为hdfs的对应目录，则是需要地洞hdfs。
• 其三，hbase.zookeeper.quorum指的是zookeeper服务器的地址，因为这里是单机版，所以直接填写localhost即可。
• 其四，hbase.zookeeper.property.clientPort指的是zookeeper的端口号，如果没有修改的话，默认的则是2181。
• 其五，zookeeper.znode.parent 01.ZooKeeper中的Hbase的根ZNode。所有的Hbase的ZooKeeper会用这个目录的值来配置相对路径。【znode存放root region的地址】默认情况下，所有的Hbase的ZooKeeper文件路径是用相对路径，所以他们会都去这个目录下面。默认: /hbase