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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14135) Remove URI parameter in AWSCredentialProvider constructors
Date Thu, 23 Mar 2017 13:27:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15938287#comment-15938287
] 

Steve Loughran commented on HADOOP-14135:
-----------------------------------------

LGTM
+1

One thing to consider: there may be someone out there who has a custom credential provider
which is going to break. I'm not worried about that as the API to do this doesn't actually
ship until Hadoop 2.8.0; there aren't any longstanding users. If we got this into branch-2.8
& hence hadoop -2.8.1, then we'd have nobody using it in production at all.

> Remove URI parameter in AWSCredentialProvider constructors
> ----------------------------------------------------------
>
>                 Key: HADOOP-14135
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14135
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Mingliang Liu
>            Assignee: Mingliang Liu
>         Attachments: HADOOP-14135.000.patch, HADOOP-14135.001.patch, HADOOP-14135.002.patch,
HADOOP-14135.003.patch
>
>
> This was from comment in [HADOOP-13252].
> It looks like the URI parameter is not needed for our AWSCredentialProvider constructors.
This was useful because we relied on URI parameter for retrieving user:pass. Now in binding
URIs, we have
> {code}
> 279 S3xLoginHelper.Login creds = getAWSAccessKeys(binding, conf);
> 280	      credentials.add(new BasicAWSCredentialsProvider(
> 281	              creds.getUser(), creds.getPassword()));
> {code}
> This way, we only need configuration object (if necessary) for all AWSCredentialProvider
implementations. The benefit is that, if we create AWSCredentialProvider list for DynamoDB,
we don't have to pass down the associated file system URI. This might be useful to S3Guard
tools.



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