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From "Aaron Fabbri (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13876) S3Guard: better support for multi-bucket access including read-only
Date Fri, 09 Dec 2016 00:12:59 GMT
Aaron Fabbri created HADOOP-13876:
-------------------------------------

             Summary: S3Guard: better support for multi-bucket access including read-only
                 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


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.

One of the issues is with accessing read-only buckets.  If a user accesses a read-only bucket
with credentials that do not have DynamoDB write permissions, they will get errors when trying
to access the read-only bucket.  This manifests causes test failures for {{ITestS3AAWSCredentialsProvider}}.

Goals for this JIRA:
- Fix {{ITestS3AAWSCredentialsProvider}} in a way that makes sense for the real use-case.
- Allow for a "one DynamoDB table per cluster" configuration with a way to chose which credentials
are used for DynamoDB.
- Document limitations etc. in the s3guard.md site doc.





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