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https://issues.apache.org/jira/browse/HDFS-12615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16476340#comment-16476340
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Íñigo Goiri commented on HDFS-12615:
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[~anu], thanks for your thoughts.
I think your concerns were valid from the beginning and I agree that this
umbrella didn't have a consistent story.
My idea was to have a place to track the RBF related modifications.
In retrospective, if I had just used tags for these features (which is the
common approach), this wouldn't have been noticed and this would now just be
hidden under the carpet.
>From this discussion, I think I took the right decision as now we are able to
>set a better standard for RBF.
I'm not sure I 100% agree on your statement about that this would require a
branch long time ago.
I agree that some of the features (~30% of the original JIRAs) should have used
a branch, but there is a lot of small bugfixes which should go to trunk without
a branch.
I hope you agree your concerns were heard.
To summarize, the actions were:
* Take the larger components into their own JIRAs which potentially will become
their own branch:
** Security: Already on that track. As I have 0 confidence in this part, we
were already making noise trying to get others to review.
** Rebalancer: Already on that track.
** DNs vs Router: Already on that track but still in early discussion.
** Quotas: this grew out of hand and hopefully now is on track in its own
umbrella.
* Leave this branch as maintenance bug fixes. If I'm not wrong, all the open
JIRAs now would qualify as "regular maintenance".
The problem is that now we have a few rough edges with some medium features
that are still left here.
I'd like to trim this umbrella further if so.
Any thoughts here? Should we split things further (multi-destination mount
points)?
In general, I would like to highlight that all the work here is self-contained
to RBF and shouldn't have an impact to the rest of HDFS.
(Security is a different beast and we should pay special attention within HDFS
in general.)
If I'm not wrong the changes to the rest of components has been minimal.
> 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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