test your Hadoop mapping rules

You may hit some impersonation issues because of some wrong auth-to-local rules.

These rules translates your principal to a user short name, and you may want to be sure that – for example – hive/worker01@REALM correctly translates to hive.

to do that :

[root@worker ~]# hadoop org.apache.hadoop.security.HadoopKerberosName \

Name: HTTP/worker01fqdn@REALM to HTTP

So, what do you think ?

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