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Date: Tue, 1 Dec 2009 23:31:20 +0000 (UTC)
From: "Tsz Wo (Nicholas), SZE (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-6307) Support reading on un-closed
 SequenceFile
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     [ https://issues.apache.org/jira/browse/HADOOP-6307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE updated HADOOP-6307:
-------------------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I have committed this to 0.21 and above.

> Support reading on un-closed SequenceFile
> -----------------------------------------
>
>                 Key: HADOOP-6307
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6307
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 0.21.0, 0.22.0
>
>         Attachments: c6307_20091124.patch, c6307_20091130.patch, c6307_20091201.patch
>
>
> When a SequenceFile.Reader is constructed, it calls fs.getFileStatus(file).getLen().  However, fs.getFileStatus(file).getLen() does not return the hflushed length for un-closed file since the Namenode does not know the hflushed length.  DFSClient have to ask a datanode for the length last block which is being written; see also HDFS-570.

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