[
https://issues.apache.org/jira/browse/HADOOP-6307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tsz Wo (Nicholas), SZE updated HADOOP-6307:
-------------------------------------------
Attachment: c6307_20091130.patch
c6307_20091130.patch: adds a new constructor with FSDataInputStream and length
so that if the file is already opened, it won't be opened again inside the
SequenceFile.Reader constructor.
> 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
> Attachments: c6307_20091124.patch, c6307_20091130.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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
