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https://issues.apache.org/jira/browse/HDFS-16023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18041576#comment-18041576
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ASF GitHub Bot commented on HDFS-16023:
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github-actions[bot] closed pull request #3091: HDFS-16023.Improve
blockReportLeaseId acquisition to avoid repeated FBR.
URL: https://github.com/apache/hadoop/pull/3091
> 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: 0.5h
> 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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