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https://issues.apache.org/jira/browse/HDFS-12615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16474977#comment-16474977
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Íñigo Goiri commented on HDFS-12615:
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For the three pieces of work I mentioned before (i.e., security, DN vs Router
and Rebalancer), I fully agree, they should be done in a chunk, with its own
design document, etc.
I'll do that (as I did for security) once the effort starts and then we can
start their own branch.
We can start the discussion individually for each of those JIRAs (soon to be
umbrellas).
So I think for that chunk we are on the same page.
Then the question is this JIRA/umbrella and its nature.
To be truthful, when I started this umbrella, I was targeting a few bug fixes
(I reported around 20 of them).
I didn't expect so many tasks; this is something that has been growing over
time.
I went through the patches and the changes are:
* Small bug fixes.
* Performance improvements.
* Adding unit tests
* Interface cleanup.
* Documentation extensions.
* Moving everything into a separate module: HDFS-13215).
* Modular new features (e.g., HDFS-12512)
* Two big features:
** Quotas: HDFS-12934. HDFS-12972, HDFS-12973, HDFS-13253, HDFS-13308,
HDFS-13307, HDFS-13346, HDFS-13380, and HDFS-13528.
** Multi subcluster mount points: HDFS-13224, HDFS-13250, HDFS-13237,
HDFS-13299, and HDFS-13291.
Most of the left items open are minor fixes or new features which I'm not even
sure they will be eventually done.
Given that the controversial/large parts that are left (i.e., Rebalancer and DN
vs Router) will be moved once they get traction, do you still see a need for a
branch for the rest?
> Router-based HDFS federation phase 2
> ------------------------------------
>
> Key: HDFS-12615
> URL: https://issues.apache.org/jira/browse/HDFS-12615
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
> Labels: RBF
>
> This umbrella JIRA tracks set of improvements over the Router-based HDFS
> federation (HDFS-10467).
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