最近要开始找工作,就在原来搭建好的hadoop1.2.1的伪分布式跑跑mapreduce 很久没用,就想着格式化一下namode,结果: Format aborted in /uar/local/hadoop/tmp/dfs/name 进入tmp查看 以前格式化过了,如果多少次格式化就需要将tmp目录下的文件统统删除 再次格式化就没有问题了 官方文档说,这是hadoop自带的一个集群的保护措施!
192.168.11.12:8485: Call From hu-hadoop1/192.168.11.11 to hu-hadoop2:8485 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at org.apache.hadoop.hdfs.
格式化namenode时报错警告:WARN common.Util: Path /data/dfs/name should be specified as a URI in configuration 一.问题分析 在执行hadoop namenode格式化命令:bin/hadoop namenode -format时出现警告: WARN common.Util: Path /data/dfs/name should be specified as a URI in configuration
#bin/hadoop namenode -format DEPRECATED: Use of this script to execute hdfs command is deprecated. Instead use the hdfs command for it. 13/09/04 13:24:48 INFO namenode.NameNode: STARTUP_MSG: /**********************************************************
报错内容 ERROR util.Shell: Failed to locate the winutils binary in the hadoop binary path java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries. 解决方法 1. 下载windows编译版的Hadoop 2. 新增系统环境变量%HADOOP_HOME% 3. 配置系统变量PATH 4.
1.问题目录表: Error代码 failed on connection exception: java.net.ConnectException: Connection refused 3. : no further information 错误提示"Bad connection to FS. command aborted. exception: Call tolocalhost/127.0.0.1:88 88failed on connection excepti