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https://issues.apache.org/jira/browse/HDFS-9394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14995337#comment-14995337
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Mingliang Liu commented on HDFS-9394:
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Thanks for reporting this jira, reviewing and committing the patch, [~cnauroth].
> 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
> Fix For: 2.8.0
>
> 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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