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https://issues.apache.org/jira/browse/HDFS-16023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-16023:
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    Labels: pull-request-available  (was: )

> Improve blockReportLeaseId acquisition to avoid repeated FBR
> ------------------------------------------------------------
>
>                 Key: HDFS-16023
>                 URL: https://issues.apache.org/jira/browse/HDFS-16023
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: JiangHua Zhu
>            Assignee: JiangHua Zhu
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> When the NameNode receives the data (FBR) from the DataNode, it will put the 
> data in the queue (BlockReportProcessingThread#queue), and there will be 
> threads processing them thereafter.
> When the DataNode wants to send data (here, FBR) to the NameNode, it will 
> first obtain a blockReportLeaseId from the NameNode. If the DataNode data 
> already exists in the queue, there is no need to assign a blockReportLeaseId 
> to the DataNode again.



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