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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13876) S3Guard: better support for multi-bucket access including read-only
Date Mon, 09 Jan 2017 22:52:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mingliang Liu updated HADOOP-13876:
-----------------------------------
    Attachment: HADOOP-13876-HADOOP-13345.000.patch

For the goals of this JIRA, the v0 patch is to address the failing tests: it skips the test
by not supporting the credentials in the binding URI as it's very unsafe and thus deprecated;
it also skips the test by not guarding the read-only S3 buckets. And it documents in s3guard.md
the limitations of not supporting inline credentials in URI.

Tested in US-West-1 region:
{code}
$ mvn -Dit.test='ITestS3A*' -Dscale -q clean verify

Results :

Tests in error:
  ITestS3AFileSystemContract>FileSystemContractBaseTest.testRenameToDirWithSamePrefixAllowed:669->FileSystemContractBaseTest.rename:525
ยป AWSServiceIO

Tests run: 321, Failures: 0, Errors: 1, Skipped: 8
{code}

> 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
>         Attachments: HADOOP-13876-HADOOP-13345.000.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.
> 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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