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https://issues.apache.org/jira/browse/HDFS-17306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan resolved HDFS-17306.
-------------------------------
Fix Version/s: 3.4.0
Hadoop Flags: Reviewed
Target Version/s: 3.3.6, 3.4.0
Resolution: Fixed
> RBF:Router should not return nameservices that does not enable observer nodes
> in RpcResponseHeaderProto
> -------------------------------------------------------------------------------------------------------
>
> Key: HDFS-17306
> URL: https://issues.apache.org/jira/browse/HDFS-17306
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: liuguanghua
> Assignee: liuguanghua
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> If a cluster has 3 nameservices: ns1, ns2,ns3, and ns1 has observer
> nodes, and client via DFSRouter comminutes with nns.
> If DFS_ROUTER_OBSERVER_READ_DEFAULT_KEY enable, the client will
> receive all nameservices in RpcResponseHeaderProto.
> We should reduce rpc response size if nameservices don't enable
> observer nodes.
>
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