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Date: Wed, 1 Mar 2017 00:22:45 +0000 (UTC)
From: "Aaron Fabbri (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <JIRA.13046868.1488259741000.24586.1488327765648@Atlassian.JIRA>
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Subject: [jira] [Commented] (HADOOP-14130) Simplify DynamoDBClientFactory
 for creating Amazon DynamoDB clients
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archived-at: Wed, 01 Mar 2017 00:22:51 -0000


    [ https://issues.apache.org/jira/browse/HADOOP-14130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15889189#comment-15889189 ] 

Aaron Fabbri commented on HADOOP-14130:
---------------------------------------

Thanks for the explanation [~liuml07].  If I understand correctly, the new API requires region as well, when you specify endpoint?

I wanted to remove endpoint before but didn't want to break the DDBLocal tests.  Are we going to abandon the DDBLocal tests and just use ITests against real DDB?

If that is the case, I'll +1 this.  I preferred to keep region but won't block this if you guys want it.  Thanks for clarifying.

> Simplify DynamoDBClientFactory for creating Amazon DynamoDB clients
> -------------------------------------------------------------------
>
>                 Key: HADOOP-14130
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14130
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Mingliang Liu
>            Assignee: Mingliang Liu
>         Attachments: HADOOP-14130-HADOOP-13345.000.patch, HADOOP-14130-HADOOP-13345.001.patch
>
>
> So, we are using deprecated {{AmazonDynamoDBClient}} class to create a DynamoDB client instead of the recommended builder. We had discussion in [HADOOP-14090] for preferring region to endpoints for user to specify the DynamoDB region (if associated S3 region is unknown or different). We have reported inconsistent behavior if endpoint and S3 region are different in [HADOOP-14027]. We also noticed that {{DynamoDBMetadataStore}} may sometimes logs nonsense region. And in [HADOOP-13252], we also have feelings that file system URI is not needed to create a {{AWSCredentialProvider}}. Resultantly we don't need to pass down file system URI for creating a DynamoDB client.
> So this JIRA is to change this, best effort.


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