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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2018/10/01 18:15:00 UTC

[jira] [Created] (HADOOP-15808) Harden Token service loader use

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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