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https://issues.apache.org/jira/browse/HDFS-13843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16714538#comment-16714538
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Soumyapn commented on HDFS-13843:
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Thanx [~zvenczel] for taking this up.
bq. BTW, the JIRA title and description doesn't match the patch much.
Sure.It doesn't . It was related to showing up the info in UI when two
destinations are mounted to one NS.NS1-->tmp1 and NS1-->tmp2 then in the UI it
was not showing order.
bq. Do you want to make it: RBF: show the order when listing mount points?
There is already one JIRA addressing it.
Moreover regarding the change.It is presently changing the CLI output which
according to the compact guidelines is an Incompatible change.
>From compact guidelines:
bq. Note also that for CLI output, all changes SHALL be considered incompatible
changes.
There already has been quite a lot discussion about it.Pls Check here at
HDFS-13998.
> RBF: show the order when listing mount points
> -
>
> Key: HDFS-13843
> URL: https://issues.apache.org/jira/browse/HDFS-13843
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: federation
>Reporter: Soumyapn
>Assignee: Zsolt Venczel
>Priority: Major
> Labels: RBF
> Attachments: HDFS-13843.01.patch, HDFS-13843.02.patch
>
>
> *Scenario:*
> Execute the below add/update command for single mount entry for single
> nameservice pointing to multiple destinations.
> # hdfs dfsrouteradmin -add /apps1 hacluster /tmp1
> # hdfs dfsrouteradmin -add /apps1 hacluster /tmp1,/tmp2,/tmp3
> # hdfs dfsrouteradmin -update /apps1 hacluster /tmp1,/tmp2,/tmp3 -order
> RANDOM
> *Actual*. With the above commands, mount entry is successfully updated.
> But order information like HASH, RANDOM is not displayed in mount entries and
> also not displayed in federation router UI. However order information is
> updated properly when there are multiple nameservices. This issue is with
> single nameservice having multiple destinations.
> *Expected:*
> *Order information should be updated in mount entries so that the user will
> come to know which order has been set.*
>
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