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Date: Tue, 16 Aug 2016 04:59:22 +0000 (UTC)
From: "Chris Nauroth (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <JIRA.12982607.1466757175000.312748.1471323562157@Atlassian.JIRA>
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Subject: [jira] [Updated] (HADOOP-13319) S3A to list
 InstanceProfileCredentialsProvider after
 EnvironmentVariableCredentialsProvider
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archived-at: Tue, 16 Aug 2016 04:59:24 -0000


     [ https://issues.apache.org/jira/browse/HADOOP-13319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Nauroth updated HADOOP-13319:
-----------------------------------
    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I'm resolving this as a duplicate of HADOOP-13252.  I think that one will be ready to commit soon.

> S3A to list InstanceProfileCredentialsProvider after EnvironmentVariableCredentialsProvider
> -------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-13319
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13319
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.8.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>         Attachments: HADOOP-13252-branch-2-001.patch
>
>
> S3A now has a default list of credential providers to pick up AWS credentials from
> The environment variable provider added in HADOOP-12807 should go before the {{InstanceProfileCredentialsProvider}} one in the list, as it does a simple env var checkup. In contrast  {{InstanceProfileCredentialsProvider}} does an HTTP request *even when not running on EC2*. It may block for up to 2s to await a timeout, and network problems could take longer.
> Checking env vars is a low cost operation that shouldn't have to wait for a network timeout before being picked up.


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