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https://issues.apache.org/jira/browse/HADOOP-13449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15669011#comment-15669011
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Aaron Fabbri commented on HADOOP-13449:
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Sorry, I was a little hasty to comment without the details of your DynamoDB
schema.
Since you use the parent dir as the key for each entry, listChildren(/a/b) can
just return all items with key=/a/b, right?
You shouldn't have to create any separate entry for parent (unless client
specifically does {{put(PathMetadata(/a/b))}})
Still curious if you can use {{begins_with}} query to implement recursive
delete. If so, that could be a future optimization.
Next time you run the existing test code, and you have a failure related to
this, feel free to email/JIRA mention me and I'll work with you on it. I'll
take another look at the MetadataStoreTestBase now.
> S3Guard: Implement DynamoDBMetadataStore.
> -----------------------------------------
>
> Key: HADOOP-13449
> URL: https://issues.apache.org/jira/browse/HADOOP-13449
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Chris Nauroth
> Assignee: Mingliang Liu
> Attachments: HADOOP-13449-HADOOP-13345.000.patch,
> HADOOP-13449-HADOOP-13345.001.patch, HADOOP-13449-HADOOP-13345.002.patch,
> HADOOP-13449-HADOOP-13345.003.patch, HADOOP-13449-HADOOP-13345.004.patch
>
>
> Provide an implementation of the metadata store backed by DynamoDB.
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