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https://issues.apache.org/jira/browse/HDFS-12615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16477862#comment-16477862
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Arpit Agarwal commented on HDFS-12615:
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Hi [~elgoiri], some tasks that fall into the _small bugfixes_ bucket look
non-trivial at a glance.
# HDFS-13364 - Support NamenodeProtocol in the Router
# HDFS-13484 - Disable Nameservices from the federation
# HDFS-13224 - support mount points across multiple subclusters
# HDFS-13044 - this introduces a safe-mode concept.
# HDFS-13347 - this introduces caching for DN reports. The caching behavior is
not clear from the short jira description.
It will benefit the RBF feature as well as future maintainers to have a design
notes or a detailed change description beyond a 1-line summary because most are
large patches (40-70KB+). Perhaps we didn't pay much attention to these jiras
because we saw them as sub-tasks and assumed the development was being done in
a branch. A feature branch feels like a better vehicle for multiple changes of
this magnitude.
> 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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