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https://issues.apache.org/jira/browse/HDFS-5312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13839542#comment-13839542
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Haohui Mai commented on HDFS-5312:
----------------------------------
Sorry for the previous post.
There are a couple use cases that this patch affects:
# NN / DN / JN should listen on the ports with the right protocols.
# Secondary NN / Standby NN should be able to retrieve the FSImage. It will
retrieve the FSImage over HTTPS if the policy is set to HTTPS_ONLY.
# Standby NN / JN should be able to get the journals. It will retrieve the
journals through HTTPS if the policy is set to HTTPS_ONLY.
Here is the current status of the patch:
||Use case||HTTP_ONLY||HTTP_AND_HTTPS||HTTPS_ONLY||
|1|✓|✓|✓|
|2|✓|✓|✓|
|3|✓|✓|-|
The third case is broken right now when the policy is set to HTTPS_ONLY. Notice
that this is a new feature since JN does not support HTTPS right now. This is
going to be fixed in HDFS-5629.
> Refactor DFSUtil#getInfoServer to return an URI
> -----------------------------------------------
>
> Key: HDFS-5312
> URL: https://issues.apache.org/jira/browse/HDFS-5312
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Attachments: HDFS-5312.000.patch, HDFS-5312.001.patch,
> HDFS-5312.002.patch, HDFS-5312.003.patch, HDFS-5312.004.patch
>
>
> DFSUtil#getInfoServer() returns only the authority (i.e., host+port) when
> searching for the http / https server. This is insufficient because HDFS-5536
> and related jiras allows NN / DN / JN to open HTTPS only using the HTTPS_ONLY
> policy.
> This JIRA addresses two issues. First, DFSUtil#getInfoServer() should return
> an URI instead of a string, so that the scheme is an inherent parts of the
> return value, which eliminates the task of figuring out the scheme by design.
> Second, it introduces a new function to choose whether http or https should
> be used to connect to the remote server based of dfs.http.policy.
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