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https://issues.apache.org/jira/browse/HADOOP-13876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron Fabbri updated HADOOP-13876:
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Attachment: HADOOP-13876-HADOOP-13345.005.patch
Attaching v5 to get a jenkins run.
Only change is the two replacements with StringUtils.isEmpty().
> S3Guard: better support for multi-bucket access
> -----------------------------------------------
>
> Key: HADOOP-13876
> URL: https://issues.apache.org/jira/browse/HADOOP-13876
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: HADOOP-13345
> Reporter: Aaron Fabbri
> Assignee: Aaron Fabbri
> Attachments: HADOOP-13876-HADOOP-13345.000.patch,
> HADOOP-13876-HADOOP-13345.001.patch, HADOOP-13876-HADOOP-13345.002.patch,
> HADOOP-13876-HADOOP-13345.003.patch, HADOOP-13876-HADOOP-13345.004.patch,
> HADOOP-13876-HADOOP-13345.005.patch
>
>
> HADOOP-13449 adds support for DynamoDBMetadataStore.
> The code currently supports two options for choosing DynamoDB table names:
> 1. Use name of each s3 bucket and auto-create a DynamoDB table for each.
> 2. Configure a table name in the {{fs.s3a.s3guard.ddb.table}} parameter.
> However, if a user sets {{fs.s3a.s3guard.ddb.table}} and accesses multiple
> buckets, DynamoDBMetadataStore does not properly differentiate between paths
> belonging to different buckets. For example, it would treat
> s3a://bucket-a/path1 as the same as s3a://bucket-b/path1.
> Goals for this JIRA:
> - Allow for a "one DynamoDB table per cluster" configuration. If a user
> accesess multiple buckets with that single table, it should work correctly.
> - Explain which credentials are used for DynamoDB. Currently each
> S3AFileSystem has its own DynamoDBMetadataStore, which uses the credentials
> from the S3A fs. We at least need to document this behavior.
> - Document any other limitations etc. in the s3guard.md site doc.
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