Steve Loughran created HADOOP-15808:
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Summary: Harden Token service loader use
Key: HADOOP-15808
URL: https://issues.apache.org/jira/browse/HADOOP-15808
Project: Hadoop Common
Issue Type: Improvement
Components: security
Affects Versions: 2.9.1, 3.1.2
Reporter: Steve Loughran
Assignee: Steve Loughran
The Hadoop token service loading (identifiers, renewers...) works provided
there's no problems loading any registered implementation. If there's a
classloading or classcasting problem, the exception raised will stop all token
support working; possibly the application not starting.
This matters for S3A/HADOOP-14556 as things may not load if aws-sdk isn't on
the classpath. It probably lurks in the wasb/abfs support too, but things have
worked there because the installations with DT support there have always had
correctly set up classpaths.
Fix: do what we did for the FS service loader. Catch failures to instantiate a
service provider impl and skip it
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