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https://issues.apache.org/jira/browse/HADOOP-15325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16416122#comment-16416122
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Konstantin Shvachko commented on HADOOP-15325:
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??I think that you are viewing the use of getPassword as a mechanism only to be
used for old passwords that used to be stored in configuration and that any new
ones should use the credential provider API directly instead.??
Hi [~lmccay], you are exactly right. And even though {{getPassowrd()}} is nice
and convenient, we need some way to introduce new practice, which avoids adding
passwords into configs. So {{public getPasswordFromCredentialsProvider()}} as
you and [~jojochuang] suggested should serve this purpose well.
I am not in favor of adding the extra FALLBACK parameter because it is quite
confusing / complicates configuration. I mean you really have to look in the
code to understand what it means. And potentially read this discussion to
understand the background.
I also think we should deprecate all existing password fields in current
configuration and backport it into downstream versions, so that we could remove
them some time in the future.
> Add an option to make Configuration.getPassword() not to fallback to read
> passwords from configuration.
> -------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-15325
> URL: https://issues.apache.org/jira/browse/HADOOP-15325
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Affects Versions: 2.6.0
> Reporter: Wei-Chiu Chuang
> Assignee: Zsolt Venczel
> Priority: Major
>
> HADOOP-10607 added a public API Configuration.getPassword() which reads
> passwords from credential provider and then falls back to reading from
> configuration if one is not available.
> This API has been used throughout Hadoop codebase and downstream
> applications. It is understandable for old password configuration keys to
> fallback to configuration to maintain backward compatibility. But for new
> configuration passwords that don't have legacy, there should be an option to
> _not_ fallback, because storing passwords in configuration is considered a
> bad security practice.
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