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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14158) Possible for modified configuration to leak into metadatastore in S3GuardTool
Date Fri, 01 Sep 2017 14:15:01 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Steve Loughran updated HADOOP-14158:
    Affects Version/s: 3.0.0-beta1
             Priority: Minor  (was: Major)

> Possible for modified configuration to leak into metadatastore in S3GuardTool
> -----------------------------------------------------------------------------
>                 Key: HADOOP-14158
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14158
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.0.0-beta1
>            Reporter: Sean Mackrory
>            Priority: Minor
> It doesn't appear to do it when run from the command-line, but when running the S3GuardTool.run
(i.e. the parent function of most of the functions used in the unit tests) from a unit test,
you end up with a NullMetadataStore, regardless of what else was configured.
> We create an instance of S3AFileSystem with the metadata store implementation overridden
to NullMetadataStore so that we have distinct interfaces to S3 and the metadata store. S3Guard
can later be called using this filesystem, causing it to pick up the filesystem's configuration,
which instructs it to use the NullMetadataStore implementation. This shouldn't be possible.
> It is unknown if this happens in any real-world scenario - I've been unable to reproduce
the problem from the command-line. But it definitely happens in a test, it shouldn't, and
fixing this will at least allow HADOOP-14145 to have an automated test.

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