http://allthingshadoop.com/2010/04/28/map-reduce-tips-tricks-your-first-real-cluster/ Scalable & Distributed Computing for noobs, nerds and the elite Hadooper and Hadooperette. Sat, 21 May 2011 15:01:17 +0000 hourly 1 http://wordpress.com/ http://allthingshadoop.com/2010/04/28/map-reduce-tips-tricks-your-first-real-cluster/#comment-27 Mon, 03 May 2010 22:28:39 +0000 http://allthingshadoop.com/?p=24#comment-27 Don’t forget to set dfs.hosts.exclude, then when you have a hardware failure, you can add the dead node to the exclude file and run `hadoop dfsadmin -refreshnodes`
If you don’t set dfs.hosts.exclude, you will need to restart the namenode to properly remove the dead node.
See http://wiki.apache.org/hadoop/FAQ#A17

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