No credentials cache found while validating credentials

Mini DFSCluster.(Mini DFSCluster.java:203) at org.apache. Mini Hadoop Cluster Manager.start(Mini Hadoop Cluster Manager.java:152) at org.apache.

Mini DFSCluster.start Data Nodes(Mini DFSCluster.java:418) at org.apache.

COM: $ klist Ticket cache: FILE:/tmp/krb5cc_1000 Default principal: [email protected]

Sasl Exception: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] Bad connection to FS. exception: Call to nn-host/10.0.0.20 failed on local exception: Sasl Exception: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] $ kinit Password for [email protected]

Typically, if there are problems with security, Hadoop will display generic messages about the cause of the problem. Native Method Accessor Impl.invoke0(Native Method) at sun.reflect.

This topic contains some sample Kerberos configuration files for your reference. Native Method Accessor Impl.invoke(Native Method Accessor Impl.java:39) at sun.reflect.

COM dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 24h renew_lifetime = 7d forwardable = true # udp_preference_limit = 1 # set udp_preference_limit = 1 when TCP only should be # used. Native Method Accessor Impl.invoke0(Native Method) at sun.reflect. Mini Hadoop Cluster Manager.main(Mini Hadoop Cluster Manager.java:308) at sun.reflect. Mini Hadoop Cluster Manager.run(Mini Hadoop Cluster Manager.java:129) at org.apache. You can also login to Active Directory as the Cloudera Manager user to check that it can create other accounts in your Organizational Unit. Client: Exception encountered while connecting to the server : javax. When configuring Kerberos, if CDH services do not start, and on the Cloudera Manager Home page you see a validation error, Use the Delegate Control wizard to grant permission to the Cloudera Manager account to create other accounts.

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