搭建3个节点的hadoop集群（完全分布式部署）--3 zookeeper与hbase安装

zookeeper安装比较顺利，hbase安装好后总是运行不了，HMaster起来马上又掉了，折腾了两天终于搞定，下面详细介绍下这两个组件的安装。
1.zookeeper
在apache官网下载zookeeper组件，我下载的版本是：zookeeper-3.4.10.tar.gz
scp上传到elephant节点的opt目录下面。
解压缩 tar -zxvf zookeeper-3.4.10.tar.gz
mv zookeeper-3.4.10 /opt/zookeeper
最终zookeeper的安装目录在/opt/zookeeper#cp zoo_sample.cfg zoo.cfg

#vim zoo.cfg

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/opt/zookeeper/data   #与hbase中配置文件hbase-site.xml参数hbase.zookeeper.property.dataDir一致，
# the port at which the clients will connect
clientPort=2181

server.1=elephant:2888:3888
server.2=monkey:2888:3888
server.3=tiger:2888:3888

# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance #
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

复制zookeeper文件到另外两个节点scp /opt/zookeeper root@monkey:/opt/
scp /opt/zookeeper root@tiger:/opt/启动zookeeper并查看状态#./zkServer.sh start
#./zkServer.sh status到此，zookeeper安装完成。
2.安装hbase
下载hbase安装文件，我下载的版本是hbase-1.2.6-bin.tar.gz
文件传到elephant节点的/opt目录
mv hbase-1.2.6-bin /opt/hbase
hbasede 安装目录为/opt/hbase
修改配置文件hbase-env.sh，设置hbase的运行环境# vim hbase-env.sh

export JAVA_HOME=/opt/jdk1.8.0_121
export HBASE_PID_DIR=/opt/hbase/pids
export HBASE_CLASSPATH=/opt/hadoop-2.7.5/etc/hadoop
# Tell HBase whether it should manage it's own instance of Zookeeper or not.
export HBASE_MANAGES_ZK=false

设置hbase-site.xml

#vim hbase-site.xml

<configuration>
　<property>
　<name>hbase.rootdir</name> <!-- hbase存放数据目录 -->
　<value>hdfs://192.168.205.136:9000/hbase</value>
　<!-- 端口要和Hadoop的fs.defaultFS端口一致-->
　</property>
　<property>
　　<name>hbase.cluster.distributed</name> <!-- 是否分布式部署 -->
　　<value>true</value>
　</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2181</value>
<description>Property from ZooKeeper's config zoo.cfg.
The port at which the clients will connect.
</description>
</property>
<property>
　　<name>hbase.master</name> <!-- 是否分布式部署 -->
　　<value>hdfs://elephant:60000</value>
　</property>
　<property>
　　<name>hbase.zookeeper.quorum</name> <!-- list of  zookooper -->
　　<value>elephant,monkey,tiger</value>
　</property> 　　　
　<property><!--zookooper配置、日志等的存储位置 -->
　　<name>hbase.zookeeper.property.dataDir</name>
　　<value>/opt/zookeeper/data</value>
　　</property>
<property><!--zookooper配置、日志等的存储位置 -->
　　<name>hbase.tmp.dir</name>
　　<value>/opt/hbase/tmpdata</value>
　　</property>

</configuration>

设置regionservers

#vim regionservers

monkey
tiger

修改环境变量

#vim /etc/profile

export JAVA_HOME=/opt/jdk1.8.0_121
export JRE_HOME=/opt/jdk1.8.0_121/jre
export HADOOP_HOME=/opt/hadoop-2.7.5
export HBASE_HOME=/opt/hbase
export ZOOKEEPER_HOME=/opt/zookeeper
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$ZOOKEEPER_HOME/bin:$HBASE_HOME/bin:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$HADOOP_HOME/bin:$PATH

#source etc/profile

jar包替换，为了避免版本兼容问题，我们需要把hadoop文件中所有hadoop*.jar替换hbase文件中lib目录下的相应hadoop*.jar包。

我们先cd 到 hadoop安装目录的jar包相关目录： rm -rf hadoop*.jar删掉所有的hadoop相关的jar包，然后运行：find /home/hadoop/hadoop-2.2.0/share/hadoop -name "hadoop*jar" | xargs -i cp {} /home/hadoop/hbase-0.96.0-hadoop2/lib/  拷贝所有hadoop2.2.0下的jar包hbase下进行hadoop版本的统一
然后把配置好的、opt/hbase文件夹scp到另外两个节点#scp /opt/hbase root@monkey:/opt/
#scp /opt/hbase root@tiger:/opt/到此，hbase安装完成。
启动hbase
#cd /opt/hbase
#bin/start-hbase.sh