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https://issues.apache.org/jira/browse/HADOOP-13728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15583761#comment-15583761
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Chris Nauroth commented on HADOOP-13728:
----------------------------------------
|| Alias || Class ||
| anonymous | org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider |
| env | com.amazonaws.auth.EnvironmentVariableCredentialsProvider |
| instance-profile |
org.apache.hadoop.fs.s3a.SharedInstanceProfileCredentialsProvider |
| simple | org.apache.hadoop.fs.s3a.SimpleAWSCredentialsProvider |
| temporary | org.apache.hadoop.fs.s3a.TemporaryAWSCredentialsProvider |
Therefore, the typical default provider chain could be expressed as:
{code}
<property>
<name>fs.s3a.aws.credentials.provider</name>
<value>simple,env,instance-profile</value>
</property>
{code}
For any configuration value not listed as an alias above, assume it's a full
class name, and fall back to the current logic. This also means the change
would be fully backward-compatible with existing configuration files that
already use the full class names, or highly customized deployments that used
their own subclass implementations of {{AWSCredentialsProvider}}.
> S3A can support short user-friendly aliases for configuration of credential
> providers.
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-13728
> URL: https://issues.apache.org/jira/browse/HADOOP-13728
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Chris Nauroth
> Priority: Minor
>
> This issue proposes to support configuration of the S3A credential provider
> chain using short aliases to refer to the common credential providers in
> addition to allowing full class names. Supporting short aliases would
> provide a simpler operations experience for the most common cases.
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