I’m currently configuring hadoop on a server running CentOs. When I run start-dfs.sh or stop-dfs.sh, I get the following error: WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform… using builtin-java classes where applicable I’m running Hadoop 2.2.0. Doing a search online brought up this link: http://balanceandbreath.blogspot.ca/2013/01/utilnativecodeloader-unable-to-load.html However, the contents of /native/ directory on hadoop 2.x appear to be