[jira] [Created] (HDFS-16724) RBF should support get the information about ancestor mount points

["ZanderXu (Jira)" <ji...@apache.org>]

ZanderXu created HDFS-16724:
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             Summary: RBF should support get the information about ancestor mount points
                 Key: HDFS-16724
                 URL: https://issues.apache.org/jira/browse/HDFS-16724
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: ZanderXu
            Assignee: ZanderXu


Suppose RBF cluster have 2 nameservices and to mount point as below:
 * /user/ns1 -> ns1 -> /user/ns1
 * /usre/ns2 -> ns2 -> /user/ns2

Suppose we disable default nameservice of the RBF cluster and try to getFileInfo of the path /user, RBF will throw one IOException to client due to can not find locations for path /user. 

But as this case, RBF should should return one valid response to client, because /user has two sub mount point ns1 and ns2.



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