Alexey Serbin created KUDU-1895:
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Summary: Document effects of non-renewable authn tokens
Key: KUDU-1895
URL: https://issues.apache.org/jira/browse/KUDU-1895
Project: Kudu
Issue Type: Task
Components: documentation
Affects Versions: 1.3.0
Reporter: Alexey Serbin
In Kudu an authn token, once issued, cannot be re-newed. It might have some
implications for end-users, since the token validity interval defines the
longest possible lifetime of an external job/task (Spark, etc.) running against
Kudu cluster if the job uses authn token for authentication.
Basically, it's necessary to document that the default authn token validity
interval is set to 7 days (60 * 60 * 24 * 7 seconds) and if they expect to have
longer jobs running with authn tokens, they should use
{{--authn_token_validity_seconds}} command-line flag for Kudu master to set
that validity interval accordingly. Otherwise, a token can expire and the
job/task would not be able to make any RPC calls to the Kudu cluster.
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