en,thanks for you advice , i didn't pay much attention to this .it is so important ,I think i should be careful about it.
2010/11/25 Harsh J <qwertyman...@gmail.com> > Hello, > > 2010/11/25 祝美祺 <henhaozhume...@gmail.com>: > > <property> > > <name>dfs.name.dir</name> > > <value>/home/hadoop/tmp</value> > > </property> > > (Nitpicking) > > Why set it to a directory named "tmp"? The dfs.name.dir is where the > NameNode stores all its meta data related to the data across the > DataNodes. I'd give it a good name than tmp, which gives a sense that > it isn't important; while it is VERY important for this directory to > exist in a usable cluster. > > -- > Harsh J > www.harshj.com > -- 祝美祺 电话：010-62789307 清华大学计算机科学与技术系 清华大学伟清楼709 北京，100084 Zhu Mei qi Tel.: +86-10-62789307 Room 709, WeiQing Building Tsinghua University, Beijing 100084, China
