[jira] [Created] (HDFS-15436) Default mount table name used by ViewFileSystem should be configurable

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

Virajith Jalaparti created HDFS-15436:
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             Summary: Default mount table name used by ViewFileSystem should be configurable
                 Key: HDFS-15436
                 URL: https://issues.apache.org/jira/browse/HDFS-15436
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Virajith Jalaparti
            Assignee: Virajith Jalaparti


Currently, if no authority is provided and the scheme of the Path is doesn't match the scheme of the {{fs.defaultFS}} , the mount table used by ViewFileSystem to resolve this path is {{default}}. 

This breaks accesses to path like {{hdfs:///foo/bar}} (without any authority) when the following configurations are used:
(1) {{fs.defaultFS}} = {{viewfs://clustername/}} 
(2) {{fs.hdfs.impl = org.apache.hadoop.fs.viewfs.ViewFileSystemOverloadScheme}}

This JIRA proposes to add a new configuration {{fs.viewfs.mounttable.default.name.key}} which is used to get the name of the cluster/mount table when the authority is missing in cases like the above. If not set, the string {{default}} will be used as today.







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