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Posted to common-user@hadoop.apache.org by "kojie.fu" <ko...@gmail.com> on 2012/07/12 06:10:40 UTC

hadoop's security

hi all,

    i want to control the hdfs's security,what should i do,i know the kerberos is supported by hadoop 1.0.0
in our's hadoop ,we have 8 user group ,and more than 40 user.every user has their hdfs file authority and mapreduce conf. 
Is there any third part jars ,can easily change user's authority.do i need to develop this applications？

thanks
jeff