I am trying to run jobs from different hadoop services like hive , spark , falcon but I am getting hdfs delegation token can not be found in cache ?
# su - hive
Check whether you have a valid kerberos ticket
Ans share the output else grab a ticket and retry.
You need to have a valid kerberos ticket before running any commands in a kerberized cluster - To get valid ticket you issue
or if you like to use a SPN keytab
kinit -kt keytab principal@REALM
Having that said I recommend you go over this great post that explains the delegation tokens in detail:
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