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https://issues.apache.org/jira/browse/HDFS-14769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16914771#comment-16914771
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Lisheng Sun commented on HDFS-14769:
------------------------------------
Thank [~elgoiri] for your good suggestion.I must pay attention to this problem
in the future.
> Add throttler for DataNode#DataTransfer
> ---------------------------------------
>
> Key: HDFS-14769
> URL: https://issues.apache.org/jira/browse/HDFS-14769
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Lisheng Sun
> Assignee: Lisheng Sun
> Priority: Major
> Attachments: HDFS-14769.001.patch, HDFS-14769.002.patch
>
>
> When a amount of block replicas are moving, the bandwidth will be full
> without throtter in DataNode#DataTransfer.
> This will affect normal reading and writing.
> {code:java}
> /**
> * Do the deed, write the bytes
> */
> @Override
> public void run() {
> // send data & checksum
> blockSender.sendBlock(out, unbufOut, null);
> }{code}
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