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https://issues.apache.org/jira/browse/HDFS-14082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17597712#comment-17597712
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Chengwei Wang commented on HDFS-14082:
--------------------------------------

Hi [~elgoiri] ,  as the default value of 
_*dfs.federation.router.client.allow-partial-listing*_ is {*}_true_{*},  the 
hdfs client will got _*partial result*_ when one or more of the subclusters are 
unavailable, but {_}*user would not be awareness of it*{_}.

I think  it's better to set the default vale as false or throw a 
_*PartialResultExeption*_ to hdfs client and let the client decide if partial 
result is allowed. What do you think? 

> RBF: Add option to fail operations when a subcluster is unavailable
> -------------------------------------------------------------------
>
>                 Key: HDFS-14082
>                 URL: https://issues.apache.org/jira/browse/HDFS-14082
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Íñigo Goiri
>            Assignee: Íñigo Goiri
>            Priority: Major
>             Fix For: HDFS-13891
>
>         Attachments: HDFS-14082-HDFS-13891.002.patch, 
> HDFS-14082-HDFS-13891.003.patch, HDFS-14082.000.patch, HDFS-14082.001.patch
>
>
> When a subcluster is unavailable, we succeed operations like 
> {{getListing()}}. We should add an option to fail the operation if one of the 
> subclusters is unavailable.



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