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https://issues.apache.org/jira/browse/HADOOP-16505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Saurav Verma updated HADOOP-16505:
----------------------------------
    Description: 
Currently, the AWS SignerFactory restricts the class of Signer algorithms that 
can be used. 
We require an ability to register a custom Signer. The SignerFactory supports 
this functionality through its {{registerSigner}} method. 

By providing a fully qualified classname to the existing parameter 
{{fs.s3a.signing-algorithm}}, the custom signer can be registered.

  was:
Currently, value of {{fs.s3a.signing-algorithm}} must be from the predefined 
list of signer class in AWS SignerFactory.
This would enable users to register and use custom `Signature algorithm` for 
aws s3a filesystem, passing it as value for {{fs.s3a.signing-algorithm}} in 
configuration.


> Use custom signature algorithm for `fs.s3a.signing-algorithm`
> -------------------------------------------------------------
>
>                 Key: HADOOP-16505
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16505
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/s3, hadoop-aws
>    Affects Versions: 3.3.0
>            Reporter: Saurav Verma
>            Priority: Major
>
> Currently, the AWS SignerFactory restricts the class of Signer algorithms 
> that can be used. 
> We require an ability to register a custom Signer. The SignerFactory supports 
> this functionality through its {{registerSigner}} method. 
> By providing a fully qualified classname to the existing parameter 
> {{fs.s3a.signing-algorithm}}, the custom signer can be registered.



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