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https://issues.apache.org/jira/browse/HADOOP-14756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123991#comment-16123991
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Aaron Fabbri commented on HADOOP-14756:
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Thanks for filing this. FYI I wrote #3 in the code comments during early
S3Guard development. I don't think we need it anymore since we can set the
isAuthoritative (fully cached directory) bit in the DirListingMetadata instead.
Might tweak the title here a bit to capture my original intent better.
> S3Guard: instrument MetadataStore for asserting & testing
> MetadataStoreTestBase
> -------------------------------------------------------------------------------
>
> Key: HADOOP-14756
> URL: https://issues.apache.org/jira/browse/HADOOP-14756
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: HADOOP-13345
> Reporter: Steve Loughran
> Fix For: HADOOP-13345
>
>
> {{MetadataStoreTestBase.testListChildren}} would be improved with the ability
> to query the features offered by the store, and the outcome of {{put()}}, so
> probe the correctness of the authoritative mode
> # Add predicate to MetadataStore interface
> {{supportsAuthoritativeDirectories()}} or similar
> # If #1 is true, assert that directory is fully cached after changes
> # Add "isNew" flag to MetadataStore.put(DirListingMetadata); use to verify
> when changes are made
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