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From "Aaron Fabbri (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13793) s3guard: add inconsistency injection, integration tests
Date Tue, 06 Dec 2016 02:27:59 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron Fabbri updated HADOOP-13793:
----------------------------------
    Attachment: HADOOP-13793-HADOOP-13345.003.patch

Attaching v3 patch addressing [~liuml07]'s comments.

- Increase inconsistency time period 10 x from 0.5 seconds to 5.0 seconds.
- Don't hard code LocalMetadataStore in ITestS3GuardListInconsistency:  Besides testing s3a
logic is correct, other MetadataStores may wish to integration test with this as well.
- Skip the inconsistency test if NullMetadataStore is enabled (it would fail).
- Clean up duplicate comment and no-op method overrides.

> s3guard: add inconsistency injection, integration tests
> -------------------------------------------------------
>
>                 Key: HADOOP-13793
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13793
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Aaron Fabbri
>            Assignee: Aaron Fabbri
>         Attachments: HADOOP-13793-HADOOP-13345.001.patch, HADOOP-13793-HADOOP-13345.002.patch,
HADOOP-13793-HADOOP-13345.003.patch
>
>
> Many of us share concerns that testing the consistency features of S3Guard will be difficult
if we depend on the rare and unpredictable occurrence of actual inconsistency in S3 to exercise
those code paths.
> I think we should have a mechanism for injecting failure to force exercising of the consistency
codepaths in S3Guard.
> Requirements:
> - Integration tests that cause S3A to see the types of inconsistency we address with
S3Guard.
> - These are deterministic integration tests.
> Unit tests are possible as well, if we were to stub out the S3Client.  That may be less
bang for the buck, though.



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