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HBase,

HBase,


HBase安装配置
①下载压缩包(选择与自己安装的Hadoop版本的兼容版本,见后面附录)
官网下载地址:https://mirrors.tuna.tsinghua.edu.cn/apache/hbase/stable/
选择稳定版hbase-1.4.9-bin.tar.gz,在Windows里面下载。

②将压缩包从Windows传输到Linux当前目录下
SecureCRT 【File】→【Connect SFTP Session】开启sftp操作

③安装
解压安装到指定目录下/opt/module(/opt是系统自带目录,之下的/module是自己创建的)

④配置环境变量
在/etc/profile文件里添加HBase安装路径的配置信息,之后用source命令使配置生效。

测试HBase安装成功

HBase配置(伪分布式模式)
配置文件位于HBase安装路径的conf目录(/opt/module/hbase/conf)下面

①配置hbase-env.sh
设置Java安装路径

设置HBase的配置文件路径(/opt/module/hbase/conf)

采用HBase自带Zookeeper,设置参数true

②配置hbase-site.xml

hbase.rootdir hdfs://bigdata128:9000/hbase hbase.cluster.distributed true hbase.zookeeper.quorum localhost 11

③启动并运行HBase(之前启动Hadoop)
启动HBase,并jps查看

用完停止HBase运行(之后停止Hadoop)

进入HBase数据库
进入HBase的shell命令行模式


了解命令使用方法,如创建表,输入help ‘create’

①创建表

②添加数据

③查看数据

④删除数据
删除一个单元格

删除一行

⑤删除表

HBase架构原理
https://www.cnblogs.com/steven-note/p/7209398.html

Hbase Java API
https://www.cnblogs.com/liuwei6/p/6842536.html
https://www.cnblogs.com/tiantianbyconan/p/3557571.html
参考资料:
Linux下配置环境变量最常用的两种方法—— .bashrc 和 /etc/profile

https://blog.csdn.net/sun8112133/article/details/79901527

学习 HBase,应该选择哪个版本?
https://blog.csdn.net/tzhuwb/article/details/81153323

https://www.csdn.net/gather_2a/MtTaEgzsODU5Mi1ibG9n.html

WARN [main] zookeeper.ZooKeeperNodeTracker: Can’t get or delete the master znode
Will not attempt to authenticate using SASL (unknown error)
建表之后查看logs报错
ERROR [main] client.ConnectionManagerHConnectionImplementation:CantgetconnectiontoZooKeeper:KeeperErrorCode=ConnectionLossfor/hbaseCantgetconnectiontoZooKeeper:KeeperErrorCode=ConnectionLossfor/hbaseHBASElogs2019040410:41:52,238INFO[M:0;bigdata128:35321SendThread(localhost:2181)]zookeeper.ClientCnxn:Openingsocketconnectiontoserverlocalhost/127.0.0.1:2181.WillnotattempttoauthenticateusingSASL(unknownerror)Hbaseshellstatus2019040410:49:55,710ERROR[main]client.ConnectionManagerHConnectionImplementation: Can't get connection to ZooKeeper: KeeperErrorCode = ConnectionLoss for /hbase 建表时报错 Can't get connection to ZooKeeper: KeeperErrorCode = ConnectionLoss for /hbase 重新停止、启动HBASE,查看logs,报错2019-04-04 10:41:52,238 INFO [M:0;bigdata128:35321-SendThread(localhost:2181)] zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error) Hbase shell 运行status 报错2019-04-04 10:49:55,710 ERROR [main] client.ConnectionManagerHConnectionImplementation: Can’t get connection to ZooKeeper: KeeperErrorCode = ConnectionLoss for /hbase

启动hbase,报错:
ERROR [main] server.ZooKeeperServer: ZKShutdownHandler is not registered
ERROR [main] master.HMasterCommandLine: Master exiting
java.io.IOException: Could not start ZK at requested port of 2181. ZK was started at port: 2182. Aborting as clients (e.g. shell) will not be able to find this ZK quorum.

关闭防火墙service iptables stop

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