Matthew Paduano created HADOOP-13123:
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Summary: Permit the default hadoop delegation token file format to
be configurable
Key: HADOOP-13123
URL: https://issues.apache.org/jira/browse/HADOOP-13123
Project: Hadoop Common
Issue Type: Improvement
Reporter: Matthew Paduano
Assignee: Matthew Paduano
If one environment updates to using the new dtutil code and accompanying
Credentials code, there is a backward compatibility issue with the default file
format being JAVA. Older clients need to be updated to ask for a file in the
legacy format (FORMAT_JAVA).
As an aid to users in this trap, we can add a configuration property to set the
default file format. When set to FORMAT_JAVA, the new server code will serve
up legacy files without being asked. The default value for this property will
remain FORMAT_PB. But affected users can add this config option to the
services using the newer code.
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