hbase，
环境：
操作系统Centos 5.5 64-bit
三台节点
ip 主机名
172.16.48.201 sg201
172.16.48.202 sg202
172.16.48.203 sg203
三点节点上已经布署好hadoop集群并正常启动
1.下载并解压hbase-0.94.0.tar.gz到/opt下
2.修改 hbase-env.sh ，hbase-site.xml，regionservers 这三个配置文件如下：
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- #hbase-env.sh
- export HBASE_OPTS="-XX:+UseConcMarkSweepGC"
- export JAVA_HOME=/usr/java/jdk1.7.0_05
- export HBASE_HOME=/opt/hbase-0.94.0
- export HADOOP_HOME=/opt/hadoop-1.0.3
- export PATH=$PATH:/opt/hbase-0.94.0/bin
- export HBASE_MANAGES_ZK=true
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- #hbase-site.xml
- <configuration>
- <property>
- <name>hbase.rootdir</name>r
- <value>hdfs://sg201:9000/hbase</value> //必须与你的hadoop主机名，端口号一致；Hbase该项并不识别机器IP，只能使用机器hostname才行
- </property>
- <property>
- <name>hbase.cluster.distributed</name>
- <value>true</value>
- </property>
- <property>
- <name>hbase.zookeeper.quorum</name>
- <value>sg201,sg202,sg203</value> //hbase.zookeeper.quorum 的个数必须是奇数
- </property>
- <property>
- <name>hbase.master</name>
- <value>192.16.48.201:60000</value>
- </property>
- <property>
- <name>zookeeper.session.timeout</name>
- <value>60000</value>
- </property>
- <property>
- <name>hbase.zookeeper.property.clientPort</name>
- <value>2222</value> //必须与zookeeper的配置文件zoo.cfg里的配置项clientport一致
- </property>
- </configuration>
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- #regionservers
- sg202
- sg203
在HMaster即Namenode （sg201）启动HBase数据库（Hadoop集群必须已经启动）。 启动命令：
bin/start-hbase.sh
启动信息如下图
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- [root@sg201 hbase-0.94.0]# bin/start-hbase.sh
- root@sg201's password: sg203: starting zookeeper, logging to /opt/hbase-0.94.0/logs/hbase-root-zookeeper-sg203.out
- sg202: starting zookeeper, logging to /opt/hbase-0.94.0/logs/hbase-root-zookeeper-sg202.out
- sg201: Permission denied, please try again.
- root@sg201's password:
- sg201: starting zookeeper, logging to /opt/hbase-0.94.0/logs/hbase-root-zookeeper-sg201.out
- starting master, logging to /opt/hbase-0.94.0/logs/hbase-root-master-sg201.out
- sg202: starting regionserver, logging to /opt/hbase-0.94.0/logs/hbase-root-regionserver-sg202.out
- sg203: starting regionserver, logging to /opt/hbase-0.94.0/logs/hbase-root-regionserver-sg203.out
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- [root@sg201 conf]# jps
- 12560 NameNode
- 30611 Jps
- 12861 JobTracker
- 26302 HQuorumPeer
- 28715 HMaster
- 12755 SecondaryNameNode
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- [root@sg202 logs]# jps
- 8194 Jps
- 1020 DataNode
- 1147 TaskTracker
- 7376 HQuorumPeer
- 7583 HRegionServer
然后输入如下命令进入hbase的命令行管理界面：?
| 1 | bin/hbase shell |
在hbase shell下 输入list，如下所示，列举你当前数据库的名称，如下图所示。如果你的Hbase没配置成功会抛出java错误。
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- [root@sg201 hbase-0.94.0]# bin/hbase shell
- HBase Shell; enter 'help<RETURN>' for list of supported commands.
- Type "exit<RETURN>" to leave the HBase Shell
- Version 0.94.0, r1332822, Tue May 1 21:43:54 UTC 2012
- hbase(main):001:0> list
- TABLE
- member
- people
- 2 row(s) in 0.3980 seconds
我们也可以通过WEB页面来管理查看HBase数据库。
HMaster：http://172.16.48.201:60010/master.jsp
4.安装过程中碰到的问题及解决方法
问题1： 启动hbase时报错
[plain] view plaincopy- [root@sg201 hbase-0.94.0]# bin/start-hbase.sh
- root@sg201's password: sg203: starting zookeeper, logging to /opt/hbase-0.94.0/logs/hbase-root-zookeeper-sg203.out
- sg202: starting zookeeper, logging to /opt/hbase-0.94.0/logs/hbase-root-zookeeper-sg202.out
- sg203: SLF4J: Class path contains multiple SLF4J bindings.
- sg203: SLF4J: Found binding in [jar:file:/opt/hbase-0.94.0/lib/slf4j-log4j12-
- 1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]
- sg203: SLF4J: Found binding in [jar:file:/opt/hadoop-1.0.3/lib/slf4j-log4j12-
- 1.4.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
- sg203: SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
- sg202: SLF4J: Class path contains multiple SLF4J bindings.
- sg202: SLF4J: Found binding in [jar:file:/opt/hbase-0.94.0/lib/slf4j-log4j12-
- 1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]
- sg202: SLF4J: Found binding in [jar:file:/opt/hadoop-1.0.3/lib/slf4j-log4j12-
- 1.4.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
- sg202: SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
解决方法：移除三台节点/opt/hbase-0.94.0/lib目录下的slf4j-log4j12-1.5.8.jar文件 参考：http://blog.csdn.net/yangxiaofei616/article/details/7381921
问题2： sg202的HRegionServer启动失败
解决方法：是由于这三点节点的系统时间不一致相差超过集群的检查时间30s
参考：http://blog.csdn.net/dajuezhao/article/details/6881631
一、环境
Hbase 0.90.6 （集成了zookeeper，可匹配Hadoop0.20.2）
hadoop0.20.2 ubuntu-1 192.168.1.10 （HMaster) ubuntu-2 192.168.1.11 (Slave) ubuntu-3 192.168.1.12 (Slave)
将/hadoop0.20.2/lib/hadoop-core-0.20.0-append-l056497.jar覆盖到/hbase-0.90.6/lib/下面
之前Hadoop等环境已经有了，所以想了解Hadoop的安装可以google一下
最主要的就是系统环境参数都配好，比如
HADOOP_HOME
ZOOKEEPER_HOME
HBASE_HOME
在HBASE_HOME/conf/hbase-site.xml中加入配置hadoop namenode的参数
<property>
<name>hbase.rootdir</name>
<value>hdfs://localhost:9000/hbase</value>
<description>The directory shared by RegionServers.</description>
</property>
hdfs://localhost:9000是namenode的地址和端口
/hbase是hdfs上的一个文件夹，注意不要自己建，hbase会帮你建的，你只要提供一个文件名就可以了
然后其他的都不用配置，运行HBASE_HOME/bin/start-hbase.sh
顺利启动，用命令行试一下，运行一下建表
create 'table_name', 'cf'
结果报错：ERROR: org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException: org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException: Timed out (10000ms)
google搜了一下，有好几个都说修改/etc/hosts文件，把原来127.0.0.1的修改成内网地址
想了半天127.0.0.1和内网地址好像没啥区别啊，最后找到了参考资料上的这段话：
Loopback IP
HBase expects the loopback IP address to be 127.0.0.1. Ubuntu and some other distributions, for example, will
default to 127.0.1.1 and this will cause problems for you.
/etc/hosts should look something like this:
127.0.0.1 localhost
127.0.0.1 ubuntu.ubuntu-domain ubuntu
关键在于第二句，原来ubuntu的hosts文件默认把机器名对应的ip设为了127.0.1.1，把这个改为127.0.0.1然后再试试
运行stop-hbase.sh结果等了半天还是没关闭stopping hbase...................................................................................................
肯定是什么地方出错了，直接kill掉进程，重启hbase，然后再创建表，这下对了
再找stop-hbase的问题吧，结果关闭也对了
原来stop出错也是因为这个hosts不对的关系