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https://issues.apache.org/jira/browse/HDFS-9394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mingliang Liu updated HDFS-9394:
--------------------------------
    Attachment: HDFS-9394.000.branch-2.patch

Thank you [~cnauroth] for reporting this. As [~wheat9] said, when we separated 
the classes to {{hadoop-hdfs-client}}, we tried to address this in [HDFS-9166]. 
I think the original patch should work just fine, but it was probably not fully 
committed.

Hopefully the fix is simple. Let's see if the v0 patch works.

> branch-2 hadoop-hdfs-client fails during FileSystem ServiceLoader 
> initialization, because HftpFileSystem is missing.
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-9394
>                 URL: https://issues.apache.org/jira/browse/HDFS-9394
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>            Reporter: Chris Nauroth
>            Assignee: Mingliang Liu
>            Priority: Critical
>         Attachments: HDFS-9394.000.branch-2.patch
>
>
> On branch-2, hadoop-hdfs-client contains a {{FileSystem}} service descriptor 
> that lists {{HftpFileSystem}} and {{HsftpFileSystem}}.  These classes do not 
> reside in hadoop-hdfs-client.  Instead, they reside in hadoop-hdfs.  If the 
> application has hadoop-hdfs-client.jar on the classpath, but not 
> hadoop-hdfs.jar, then this can cause a {{ServiceConfigurationError}}.



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