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Saturday, June 30, 2012

Hadoop best practice !

  • Check if your dfs.name.dir has one local value and another directory like NFS.
  • No swap allowed !
  • Enough memory !!
  • The Secondary Name Node is not on the same machine as the NameNode.
  • Time is sync !
  • Fast network !
  • ulimit is set
Labels: Hadoop, Hbase, Useful
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