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From "Chao Sun (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12976) Introduce ObserverReadProxyProvider
Date Mon, 02 Jul 2018 18:22:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16530277#comment-16530277
] 

Chao Sun commented on HDFS-12976:
---------------------------------

[~shv]: thanks for the review. I removed the {{performFailover}} logic from the patch as currently
the observer failover logic is handled inside the {{invoke}} method, while the active failover
is delegated to the {{performFailover}} logic in the parent class. This retry logic is not
complete though - it will be handled in a follow-up JIRA.

Submitted patch v008. Let me know what you think. Thanks.

> 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-HDFS-12943.008.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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