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https://issues.apache.org/jira/browse/HDFS-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141709#comment-13141709
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Tsz Wo (Nicholas), SZE commented on HDFS-2316:
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@Alejandro,
> GET GETHOMEDIRECTORY operation is missing.
Do we really need it? DistributedFileSystem implements it by simple creating a
path locally
> The GETFILEBLOCKLOCATIONS, GETDELEGATIONTOKEN, RENEWDELEGATIONTOKEN,
> CANCELDELEGATIONTOKEN operations seem to be the ones that don't make sense
> (at the moment) in a proxy scenario. We should make those operations as
> optional.
I agree that GETFILEBLOCKLOCATIONS should be a private API. Let's rename it to
GET_BLOCK_LOCATIONS.
For the delegation token ops, they seems making sense in proxy scenario. E.g.
Oozie needs it with proxy.
> The 'doas' query parameter is missing, this is required to enable proxyuser
> functionality.
In RPC, we use "realUser" for the user submitting the call and "user" for the
effective user, e.g. If Oozie performs an opertions as "nicholas", then
realUser is "oozie" and user is "nicholas". How about we have something
similar, say real.user and user.name?
> The 'user.name' query parameter is optional as this is used only in the case
> of pseudo authentication, in the case of other authentication mechanism the
> username will be taken for the authentication credentials.
Agree.
> webhdfs: a complete FileSystem implementation for accessing HDFS over HTTP
> --------------------------------------------------------------------------
>
> Key: HDFS-2316
> URL: https://issues.apache.org/jira/browse/HDFS-2316
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: WebHdfsAPI20111020.pdf
>
>
> We current have hftp for accessing HDFS over HTTP. However, hftp is a
> read-only FileSystem and does not provide "write" accesses.
> In HDFS-2284, we propose to have webhdfs for providing a complete FileSystem
> implementation for accessing HDFS over HTTP. The is the umbrella JIRA for
> the tasks.
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