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https://issues.apache.org/jira/browse/HADOOP-16540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16921436#comment-16921436
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Arun Ravi M V commented on HADOOP-16540:
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{quote}We'll also need some credential factory API to take some (operation,
UGI, source, dest) params and return the creds for that operation. Unless you
really want to give the clients full credentials, you will be needing some
credential factory service over RPC there.{quote}
Yes, I agree with you on this. Operation Context-based credential factory API
is what I should be looking for. I will close this ticket as WONTFIX
> Pluggable Filesystem Caching Support in FileSystem Class
> --------------------------------------------------------
>
> Key: HADOOP-16540
> URL: https://issues.apache.org/jira/browse/HADOOP-16540
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs
> Affects Versions: 3.3.0
> Reporter: Arun Ravi M V
> Priority: Major
>
> Provide an option to use Custom Cache Class in FileSystem Class. Currently,
> the caching is enabled by default and uses the URI schema and authority value
> to determine whether to create a new FS instance for the given URI or to
> fetch an already existing one from the cache.
> In case of AWS S3 FS Impl, for an S3 path, the authority name will be bucket
> name, ie Filesystem object will be cached at the bucket level, but providing
> a custom caching logic can empower the user to cache it at some prefix level
> and provide more flexibility.
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