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Date: Mon, 2 Oct 2017 21:33:01 +0000 (UTC)
From: =?utf-8?Q?=C3=8D=C3=B1igo_Goiri_=28JIRA=29?= <jira@apache.org>
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Subject: [jira] [Commented] (HDFS-12577) Rename Router tooling
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archived-at: Mon, 02 Oct 2017 21:33:07 -0000


    [ https://issues.apache.org/jira/browse/HDFS-12577?page=3Dcom.atlassian=
.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D1618=
8880#comment-16188880 ]=20

=C3=8D=C3=B1igo Goiri commented on HDFS-12577:
------------------------------------

For the last few months, we've been getting feedback about the naming issue=
s. I'd like to use this JIRA to cover these.
I'd like to summarize the different comments:
* [~zhz] and [~shv] were concerned about distinguishing it from regular HDF=
S federation.
* [~manojg] similarly thought the command line to manage the mount table co=
uld get confusing as it currently used {{hdfs federation}}..
* [~aw] brought up the confusion of having two daemons (in YARN and HDFS) c=
alled {{Router}}.

From this feedback, I propose the following:
* Referring to this effort as "Router-Based Federation" or RBF.
* Create a class called {{HdfsRouter}} to start the Router, so the current =
main from Router would move here. The command would still be {{hdfs router}=
} but it would start {{HdfsRouter}} and avoid conflicts when calling {{jps}=
} etc.
* Rename the command I added for HDFS-10467 from {{hdfs federation}} to {{h=
dfs routeradmin}}. Alternatively, I could merge both the Router start and t=
he admin into {{hdfs router}} and call {{HdfsRouter}} and {{RouterAdmin}} i=
nternally.

Thoughts?


> Rename Router tooling
> ---------------------
>
>                 Key: HDFS-12577
>                 URL: https://issues.apache.org/jira/browse/HDFS-12577
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: fs
>            Reporter: =C3=8D=C3=B1igo Goiri
>             Fix For: HDFS-10467
>
>
> Currently the naming for Router Based Federation has a couple conflicts:
> * Both YARN and HDFS have a Router component which may cause issues for t=
he PID file and JPS.
> * The tool to manage the mount table is called using {{hdfs federation}}.=
 This may cause confusion with the regular HDFS federation.


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