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From "Larry McCay (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10607) Create an API to Separate Credentials/Password Storage from Applications
Date Tue, 22 Jul 2014 18:00:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14070596#comment-14070596
] 

Larry McCay commented on HADOOP-10607:
--------------------------------------

The keystore provider is useful even without a central authenticating server for many usecases.
Ideally and eventually, we will have a kerberos authenticating server to serve such credentials
but in the meantime the keystore is a way to persist the password without being in clear text.
Coupled with file permissions this is stronger protection than file permissions alone. Later
migration to a central credential server will be easily accomplished through the use of the
API. We are taking babysteps to get where we need to be while satisfying user requirements
in a reasonable manner along the way.

> Create an API to Separate Credentials/Password Storage from Applications
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-10607
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10607
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: security
>            Reporter: Larry McCay
>            Assignee: Larry McCay
>             Fix For: 3.0.0, 2.6.0
>
>         Attachments: 10607-10.patch, 10607-11.patch, 10607-12.patch, 10607-2.patch, 10607-3.patch,
10607-4.patch, 10607-5.patch, 10607-6.patch, 10607-7.patch, 10607-8.patch, 10607-9.patch,
10607-branch-2.patch, 10607.patch
>
>
> As with the filesystem API, we need to provide a generic mechanism to support multiple
credential storage mechanisms that are potentially from third parties. 
> We need the ability to eliminate the storage of passwords and secrets in clear text within
configuration files or within code.
> Toward that end, I propose an API that is configured using a list of URLs of CredentialProviders.
The implementation will look for implementations using the ServiceLoader interface and thus
support third party libraries.
> Two providers will be included in this patch. One using the credentials cache in MapReduce
jobs and the other using Java KeyStores from either HDFS or local file system. 
> A CredShell CLI will also be included in this patch which provides the ability to manage
the credentials within the stores.



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