平台搭建

1. put: File /usr/xhj/电话调查.zip._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 0 datanode(s) running and no node(s) are excluded in this operation. 关掉防火墙：sudo ufw disable scp hadoop fs -put 电话调查.zip /usr/xhj/ /usr/hadoop/hadoop-2.7.3/sbin ./stop- 2 /usr/hadoop/hadoop-2.7.3/bin 压缩包建立 hndx@server235:/usr/hadoop/hadoop-2.7.3/etc$ tar -cvf -hadoop | gzip > temp.tar.gz 比如生成的文件是file.tar.gz 你要打包的文件夹是/home/test/下的所有文件，命令如下（最后的星号不要忘记哦）。 tar -cvzf file.tar.gz /home/test/*

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配置 3 问题error 处理DataNode节点为0，使得live node变为3 http://blog.csdn.net/Meoop/article/details/50806724 jdk，jps 4清空 $ sudo rm -f * $ sudo rm -rf *

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解压hndx@server235:/usr/wenjian$ ls 电话调查.tar.gz hndx@server235:/usr/wenjian$ sudo tar zxvf 电话调查.tar.gz 移除集群文件 hndx@server235:/usr/wenjian$ hadoop fs -rm -r /usr 17/01/18 09:36:39 INFO fs.TrashPolicyDefault: Namenode trash configuration: Deletion interval = 0 minutes, Emptier interval = 0 minutes. 启动安全 /hadoop dfsadmin -safemode leave 点击打开链接 配置文件： hndx@server235:/usr/hadoop/hadoop-2.7.3/etc$ cd hadoop/ hndx@server235:/usr/hadoop/hadoop-2.7.3/etc/hadoop$ ls hndx@server235:/usr/hadoop/hadoop-2.7.3/etc/hadoop$ cat hdfs-site.xml hndx@server235:/usr/hadoop/hadoop-2.7.3/etc/hadoop$ cat slaves hndx@server235:/usr/hadoop/hadoop-2.7.3/etc/hadoop$ cat mapred-site.xml.template 2017年1月15日 #数据库配置 #数据库配置javax.jdo.option.ConnectionURL   jdbc:mysql://134.160.xxx.xxx:3306/hive?characterEncoding=UTF8&useSSL=false&createDatabaseIFNotExist=true scratch配置 <name>hive.exec.scratchdir</name>     <value>/home/hive/apache-hive-2.1.1-bin/scratchdir/tmp</value>   元数据 <value>/home/hive/apache-hive-2.1.1-bin/warehouse/home</value>