[jira] [Updated] (HADOOP-14476) make InconsistentAmazonS3Client usable in downstream tests

["Aaron Fabbri (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-14476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aaron Fabbri updated HADOOP-14476:
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    Attachment: HADOOP-14476-HADOOP-13345.001.patch

Attaching v1 patch.  Documentation included.  I have not added the test case [~stevel@apache.org] suggested yet about cases of getFileStatus() failing due to eventual consistency, but I can do that in the v2 patch.

Ran all integration tests w/ and w/o s3guard (dynamo) in us-west-2 region.

Also an ITestS3AContractGetFileStatus() with all keys delayed and it failed without S3Guard and succeed with.

> make InconsistentAmazonS3Client usable in downstream tests
> ----------------------------------------------------------
>
>                 Key: HADOOP-14476
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14476
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3, test
>    Affects Versions: HADOOP-13345
>            Reporter: Steve Loughran
>            Assignee: Aaron Fabbri
>         Attachments: HADOOP-14476-HADOOP-13345.001.patch
>
>
> It's important for downstream apps to be able to verify that s3guard works by making the AWS client inconsistent (so demonstrate problems), then turn s3guard on to verify that they go away. 
> This can be done by exposing the {{InconsistentAmazonS3Client}}
> # move the factory to the production source
> # make delay configurable for when you want a really long delay
> # have factory code log @ warn when a non-default factory is used.
> # mention in s3a testing.md
> I think we could look at the name of the option, {{fs.s3a.s3.client.factory.impl}} too. I'd like something which has "internal" in it, and without the duplication of s3a.s3



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