Tao Jie updated HDFS-13219:
    Issue Type: Sub-task  (was: Bug)
        Parent: HDFS-12615

> 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
> 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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