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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-814) Add an api to get the visible length of a DFSDataInputStream.
Date Wed, 23 Dec 2009 19:16:29 GMT

    [ https://issues.apache.org/jira/browse/HDFS-814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12794166#action_12794166

Tsz Wo (Nicholas), SZE commented on HDFS-814:

I forgot to say that the failure of TestFiDataTransferProtocol2 is not related to this.  See

> Add an api to get the visible length of a DFSDataInputStream.
> -------------------------------------------------------------
>                 Key: HDFS-814
>                 URL: https://issues.apache.org/jira/browse/HDFS-814
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: hdfs client
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 0.21.0, 0.22.0
>         Attachments: h814_20091221.patch, h814_20091221_0.21.patch
> Hflush guarantees that the bytes written before are visible to the new readers.  However,
there is no way to get the length of the visible bytes.  The visible length is useful in some
applications like SequenceFile.

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