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https://issues.apache.org/jira/browse/HADOOP-3241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12588791#action_12588791
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dhruba borthakur commented on HADOOP-3241:
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If my memory serves me right, the "append" design says that if a Reader
retrieves a list of blocks from the namenode and the inode is marked
"underConstruction", then the Reader can do something more intelligent then
returning failure when the application tries to read from beyond the last known
file size. This is more of an optimization and is not really required.
> DFSFileInfo should also have field to say if the file is underconstrction
> -------------------------------------------------------------------------
>
> Key: HADOOP-3241
> URL: https://issues.apache.org/jira/browse/HADOOP-3241
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.18.0
> Reporter: lohit vijayarenu
> Attachments: HADOOP-3241-1.patch, HADOOP-3241-2.patch
>
>
> It would be good to have a flag which says if the DFSFileInfo object
> corresponds to a file under construction or not.
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