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https://issues.apache.org/jira/browse/HDFS-12976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16522689#comment-16522689
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Chao Sun edited comment on HDFS-12976 at 6/25/18 7:03 PM:
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Another idea I'm thinking is to add a flag in {{RpcRequestHeaderProto}} and
then check this flag on the NameNode server side, using {{AlignmentContext}}.
With this approach, no change on {{ConfiguredFailoverProxyProvider}} will be
required. Let me know your opinion on this.
was (Author: csun):
Another thought I'm thinking is to add a flag in {{RpcRequestHeaderProto}} and
then check this flag on the NameNode server side, using {{AlignmentContext}}.
With this approach, no change on {{ConfiguredFailoverProxyProvider}} will be
required. Let me know your opinion on this.
> Introduce ObserverReadProxyProvider
> -----------------------------------
>
> Key: HDFS-12976
> URL: https://issues.apache.org/jira/browse/HDFS-12976
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: Konstantin Shvachko
> Assignee: Chao Sun
> Priority: Major
> Attachments: HDFS-12976-HDFS-12943.000.patch,
> HDFS-12976-HDFS-12943.001.patch, HDFS-12976-HDFS-12943.002.patch,
> HDFS-12976-HDFS-12943.003.patch, HDFS-12976.WIP.patch
>
>
> {{StandbyReadProxyProvider}} should implement {{FailoverProxyProvider}}
> interface and be able to submit read requests to ANN and SBN(s).
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