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https://issues.apache.org/jira/browse/HDFS-14739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16949057#comment-16949057
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Jinglun commented on HDFS-14739:
--------------------------------
{quote}I guess we are even changing the exception to DestinationNullException
in RPC server and this will be propagated to back to the client too, I am not
pretty sure regarding whether this is required, since such a exception won't be
thrown when interacting directly with NN, Just to ignore exception at one place
do we need this?
{quote}
Hi [~elgoiri] [~ayushtkn], I thought a new RouterIOException extended from
IOException would be nice. I notice [~ayushtkn] had some concern about the new
Exception because it wouldn't be thrown when interacting directly with NN. In
this jira we can make sure the RouterIOException would never be thrown to
client. May be add some annotation like 'Should not be thrown to client ' to
RouterIOException ? So other people won't throw it to client.
> RBF: LS command for mount point shows wrong owner and permission information.
> -----------------------------------------------------------------------------
>
> Key: HDFS-14739
> URL: https://issues.apache.org/jira/browse/HDFS-14739
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: xuzq
> Assignee: Jinglun
> Priority: Major
> Attachments: HDFS-14739-trunk-001.patch, HDFS-14739-trunk-002.patch,
> HDFS-14739-trunk-003.patch, HDFS-14739-trunk-004.patch,
> HDFS-14739-trunk-005.patch, HDFS-14739-trunk-006.patch,
> image-2019-08-16-17-15-50-614.png, image-2019-08-16-17-16-00-863.png,
> image-2019-08-16-17-16-34-325.png
>
>
> ||source||target namespace||destination||owner||group||permission||
> |/mnt|ns0|/mnt|mnt|mnt_group|755|
> |/mnt/test1|ns1|/mnt/test1|mnt_test1|mnt_test1_group|755|
> |/test1|ns1|/test1|test1|test1_group|755|
> When do getListing("/mnt"), the owner of */mnt/test1* should be *mnt_test1*
> instead of *test1* in result.
>
> And if the mount table as blew, we should support getListing("/mnt") instead
> of throw IOException when dfs.federation.router.default.nameservice.enable is
> false.
> ||source||target namespace||destination||owner||group||permission||
> |/mnt/test1|ns0|/mnt/test1|test1|test1|755|
> |/mnt/test2|ns1|/mnt/test2|test2|test2|755|
>
>
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