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https://issues.apache.org/jira/browse/HDFS-12976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16527146#comment-16527146
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Chao Sun commented on HDFS-12976:
---------------------------------
My bad [~shv]: when merging your change to my local branch I forgot to remove
my existing changes on {{ConfiguredFailoverProxyProvider}}.
Agree with both you and [~xkrogen] that a separate method in {{ClientProtocol}}
may be needed and it should be safe to do so, which I think can be tackled in a
separate JIRA?
Attaching a clean patch. One question though: why we need to add {{isObserver}}
check in the {{StandbyState}} - seems {{context.allowStaleReads}} is enough
(all tests passed w/o the {{isObserver}} check).
> 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-HDFS-12943.004.patch,
> HDFS-12976-HDFS-12943.005.patch, HDFS-12976-HDFS-12943.006.patch,
> HDFS-12976-HDFS-12943.007.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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