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https://issues.apache.org/jira/browse/HDFS-13852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16669012#comment-16669012
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Íñigo Goiri commented on HDFS-13852:
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[~hfyang20071] can you provide a patch for HDFS-13891?
> RBF: The DN_REPORT_TIME_OUT and DN_REPORT_CACHE_EXPIRE should be configured
> in RBFConfigKeys.
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-13852
> URL: https://issues.apache.org/jira/browse/HDFS-13852
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: federation, hdfs
> Affects Versions: 3.1.0, 2.9.1, 3.0.1
> Reporter: yanghuafeng
> Assignee: yanghuafeng
> Priority: Major
> Attachments: HDFS-13852.001.patch, HDFS-13852.002.patch,
> HDFS-13852.003.patch, HDFS-13852.004.patch
>
>
> In the NamenodeBeanMetrics the router will invokes 'getDataNodeReport'
> periodically. And we can set the dfs.federation.router.dn-report.time-out and
> dfs.federation.router.dn-report.cache-expire to avoid time out. But when we
> start the router, the FederationMetrics will also invoke the method to get
> node usage. If time out error happened, we cannot adjust the parameter
> time_out. And the time_out in the FederationMetrics and NamenodeBeanMetrics
> should be the same.
>
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