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https://issues.apache.org/jira/browse/HDFS-537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750139#action_12750139
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Hairong Kuang commented on HDFS-537:
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For comment 2, I created HDFS-583 to record this comment. So the comment is
going to be removed from the code.
For comment 1, I thought about it too. But sometimes we need setters that sets
the value unconditionally. That's why this patch ended up checking the value in
BlockReceiver.
> DataNode uses ReplicaBeingWritten to support dfs writes/hflush
> --------------------------------------------------------------
>
> Key: HDFS-537
> URL: https://issues.apache.org/jira/browse/HDFS-537
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: data-node
> Affects Versions: Append Branch
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: Append Branch
>
> Attachments: exposeReplicaInfo.patch
>
>
> This jira adds subdirectory "rbw" to data directory to support replicas
> created on dfs writes/hflush, uses ReplicaBeingWritten to represent replicas
> created on dfs writes/hflush, and some changes to make code more readable.
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