hadoop2安装笔记

rted with a utility script. Р[hdfs]$ $HADOOP_PREFIX/sbin/start-dfs.shР登录Web控制台，查看HDFS集群状态Рhttp://192.168.150.30:50070Р二、启动HDFS集群可能遇到的问题Р1、启动日志中提示 "unable to load native-library"Рhadoop默认编译的native-library是32bit，我们的RedHat 6.6是64系统需要重新编译类库，或从网路上找一个64位下载即可Рhttp://dl.download.csdn.net/down10/20150323/537fec32064614e002edf5b9ceb4f3e5.rar?response-content-disposition=attachment%3Bfilename%3D%22native-x64.rar%22&OSSAccessKeyId=9q6nvzoJGowBj4q1&Expires=1470307292&Signature=hhB7yb0AsKxFJI%2BsYc2DTATIE%2Fo%3DРР2、多次格式化造成datanade进程无法拉起且master的日志无输出Р${HADOOP_PREFIX}/bin/hdfs namenode -format 多次执行会造成nameNode 的 clusterID与dataNode不一致Р[hadoop@master ~]$ head /hadoop2/tmp/dfs/namesecondary/current/VERSION Р#Thu Aug 04 18:39:53 PDT 2016РnamespaceID=1226758419РclusterID=CID-48e0bfd8-5722-4b9d-9da2-79bc13fd8388