[
https://issues.apache.org/jira/browse/HDFS-879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12798247#action_12798247
]
Hairong Kuang commented on HDFS-879:
------------------------------------
> Data Node heartbeat the size.
You meant heatbeat the size to NN or the client?
Before talking about how we do it, I am not convinced why FileStatus needs to
provide visible length & whether it is "under construction"? Isn't it good
enough that DFSOutputStream provides those information?
> FileStatus should have the visible length of the file
> -----------------------------------------------------
>
> Key: HDFS-879
> URL: https://issues.apache.org/jira/browse/HDFS-879
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Zheng Shao
> Assignee: Zheng Shao
>
> Currently, {{FileStatus}} returned by {{DistributedFileSystem.listStatus()}}
> (which goes through {{DFSClient.listPath()}} then {{NameNode.getListing()}})
> does not have the latest file length, if the file is still open for write.
> We should make changes in {{DFSClient.listPath()}} to override the length of
> the file, if the file is under construction.
> This depends on adding a {{isUnderConstruction}} field in {{FileStatus}}.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
