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Posted to hdfs-issues@hadoop.apache.org by "Íñigo Goiri (Jira)" <ji...@apache.org> on 2022/01/13 16:36:00 UTC
[jira] [Updated] (HDFS-16421) RBF: Remove RouterRpcFairnessPolicyController ConcurrentNS to avoid renewLease being unavailable
[ https://issues.apache.org/jira/browse/HDFS-16421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Íñigo Goiri updated HDFS-16421:
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Summary: RBF: Remove RouterRpcFairnessPolicyController ConcurrentNS to avoid renewLease being unavailable (was: Remove RouterRpcFairnessPolicyController ConcurrentNS to avoid renewLease being unavailable)
> RBF: Remove RouterRpcFairnessPolicyController ConcurrentNS to avoid renewLease being unavailable
> ------------------------------------------------------------------------------------------------
>
> Key: HDFS-16421
> URL: https://issues.apache.org/jira/browse/HDFS-16421
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: rbf
> Affects Versions: 3.4.0
> Reporter: Xiangyi Zhu
> Assignee: Xiangyi Zhu
> Priority: Major
>
> When using the RouterRpcFairnessConstants strategy, if the NamNode rpc is slow or does not respond, it is easy to use up the concurrent available handlers, and the client will not be able to renewLease normally.
> I think CONCURRENT_NS can be removed. When there is an rpc of CONCURRENT, we traverse each NS to apply for the corresponding Handler, instead of just applying for one Handler like CONCURRENT.
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