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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14090) Allow users to specify region for DynamoDB table instead of endpoint
Date Fri, 17 Feb 2017 13:54:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15871884#comment-15871884
] 

Steve Loughran commented on HADOOP-14090:
-----------------------------------------

Having separate region/endpoint just confuses me. The docs will need a paragraph on it. Key
thing: the endpoint specifies the s3 endpoint for authentication. If I specify DDB region,
what does that mean for the s3a bucket? What if they are different...does that just run DDB
somewhere else?

other than that

* Unix convention is to use -- for long commands, so if an app supports single char options,
you can combine them {{tar \-xvf == tar \-x \-v \-f}}. So use "\-\-" as the prefix here.
* please use shared string constants for "region" and "endpoint" in code & tests.
* -1 to TODOs in code. Better to add a new JIRA item rather than leave comments in the source
with will inevitably get forgotten about. JIRA should be where the entire TODO list should
be documented.

 

> Allow users to specify region for DynamoDB table instead of endpoint
> --------------------------------------------------------------------
>
>                 Key: HADOOP-14090
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14090
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Sean Mackrory
>         Attachments: HADOOP-14090-HADOOP-13345.001.patch
>
>
> Assuming the AWS SDK allows this, I think this would be a better way to configure it
for any usage on AWS itself (with endpoint still being an option for AWS-compatible non-AWS
use cases). Unless users actually care about a specific endpoint, this is easier. Perhaps
less important, HADOOP-14023 shows that inferring the region from the endpoint (which granted,
isn't that necessary) doesn't work very well at all.



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