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https://issues.apache.org/jira/browse/HADOOP-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12713263#action_12713263
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Doug Cutting commented on HADOOP-5892:
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This isn't really implementing seek(), but rather skip(), since it only goes
forward. Even then, it will be prohibitively slow for large files.
It would be better to implement a real seek. This can be done by having the
seek method close the existing connection and open a new connection specifying
a start position as a url parameter. Then change FileDataServlet to pass this
parameter along, and StreamFile to perform a seek before reading data.
> Implement seek for HftpFileSystem
> ---------------------------------
>
> Key: HADOOP-5892
> URL: https://issues.apache.org/jira/browse/HADOOP-5892
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: hftpSeek.txt
>
>
> Support seek in the HftpFileSystem. This is useful for a host of applications
> that need to access data from a hadoop cluster running a different version of
> hadoop.
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