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https://issues.apache.org/jira/browse/HDFS-11546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17217606#comment-17217606
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Xiaoqiao He commented on HDFS-11546:
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[~elgoiri] Hi elgoiri, when trace RouterRpcClient source code, I found that we
offered three types to invoke proxy call as
invokeSingle/invokeSequential/invokeConcurrent in this task. For invokeSingle
and invokeConcurrent, it is easy to understand and it makes sense. But I am
confused what {{invokeSequential}} method is used for and why involve this
method here, IMO any sequential invoke could be replaced by invokeSingle or
invokeConcurrent or combination. Sorry I do not dig the original design
document about this invoke method. Thanks.
> Federation Router RPC server
> ----------------------------
>
> Key: HDFS-11546
> URL: https://issues.apache.org/jira/browse/HDFS-11546
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Affects Versions: HDFS-10467
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
> Fix For: 2.9.0, 3.0.0
>
> Attachments: HDFS-11546-HDFS-10467-000.patch,
> HDFS-11546-HDFS-10467-001.patch, HDFS-11546-HDFS-10467-002.patch,
> HDFS-11546-HDFS-10467-003.patch, HDFS-11546-HDFS-10467-004.patch,
> HDFS-11546-HDFS-10467-005.patch, HDFS-11546-HDFS-10467-007.patch,
> HDFS-11546-HDFS-10467-008.patch, HDFS-11546-HDFS-10467-009.patch,
> HDFS-11546-HDFS-10467-010.patch, HDFS-11546-HDFS-10467-011.patch
>
>
> RPC server side of the Federation Router implements ClientProtocol.
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