Hi Team,

any pointers? thx

REgards
Prabhakar

On Thu, Oct 10, 2024 at 6:41 PM Prabhakar Bhosale <bhosale....@gmail.com>
wrote:

> I have configured a drill on hadoop cluster with 3 datanodes and 1
> drillbit on each node and kerberos authentication. While starting the drill
> it gives the following error in the drillbit.out file. Any help on the root
> cause of the error and possible solution would be highly appreciated. thx
>
> *Error Message*
> *"Authentication is enabled for webserver but none of the security
> mechanism was configured Properly. Please verify the configuration and
> try again"*
>
> I am using drill 1.21.1.
>
> Below is the content of drill-override.conf
>
> drill.exec :{
>              cluster-id:"my-cluster",
>              zk.connect:"server1.org.com:2181",
>             impersonation:{
>                       enabled:true,
>                       max_chained_user_hops:3
>                  },
>          security.auth:{
>                  mechanisms:["KERBEROS"],
>                  principal:"drill/_HOST@STACLUSTER.LOCAL",
>                  keytab:"/home/hadoop/keytabs/dn_srv3.keytab"
>                },
>           security.user:{
>                auth.enabled:true
>             }
> }
>
> *Troubleshooting Steps Taken*
>
> 1. Ensured drill cluster is working correctly without security configured
> at both hadoop and drill end
> 2. Ensured All hadoop and kerberos services are working correctly
> 3. Ensured all drill services are working correctly
> 4. Ensured kerberos is authenticating the given principal with given
> keytab file with KINIT command
> 5. Tried with impersonation with value true and false
>
> REgards
> Prabhakar
>
>
>
>

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