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From "maobaolong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-13219) RBF: Cluster information on Router is not correct when the Federation shares datanodes
Date Thu, 15 Mar 2018 01:32:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16399738#comment-16399738
] 

maobaolong commented on HDFS-13219:
-----------------------------------

Maybe we can see something wrong from the following wrong:

 

- ns1-nn1-datanode

!screenshot-4.png!

ns10-nn20-datanode

!screenshot-5.png!

 

- ns-fed-r1-overview

!screenshot-3.png!

- ns-fed-r1-subcluster
 !screenshot-2.png!

- ns-fed-r1-datanode

!screenshot-1.png!

We can see something wrong:
 * Router overview page should not display the live datanode to 8, because we have 4 datanode
in all.
 * Router datanode page should not display the ns1's datanode information, because we have
2 ns (ns1 and ns10).

[~linyiqun] [~elgoiri], Please take a look at this issue, maybe we should discuss for it.

 

> RBF: Cluster information on Router is not correct when the Federation shares datanodes
> --------------------------------------------------------------------------------------
>
>                 Key: HDFS-13219
>                 URL: https://issues.apache.org/jira/browse/HDFS-13219
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 2.9.0
>            Reporter: Tao Jie
>            Priority: Major
>         Attachments: screenshot-1.png, screenshot-2.png, screenshot-3.png, screenshot-4.png,
screenshot-5.png
>
>
> Now summary information on Router website aggregates summary of each nameservice. However
in a typical federation cluster deployment, datanodes are shared among nameservices. Consider
we have 2 namespaces and 100 datanodes in one cluster. 100 datanodes are available for each
namespace, but we see 200 datanodes on the router website. So does other information such
as {{Total capacity}}, {{Remaining capacity}}.



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