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https://issues.apache.org/jira/browse/HDFS-13687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao Sun updated HDFS-13687:
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Status: Patch Available (was: Open)
> ConfiguredFailoverProxyProvider could direct requests to SBN
> ------------------------------------------------------------
>
> Key: HDFS-13687
> URL: https://issues.apache.org/jira/browse/HDFS-13687
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Chao Sun
> Assignee: Chao Sun
> Priority: Minor
> Attachments: HDFS-13687.000.patch
>
>
> In case there are multiple SBNs, and {{dfs.ha.allow.stale.reads}} is set to
> true, failover could go to a SBN which then may serve read requests from
> client. This may not be the expected behavior. This issue arises when we are
> working on HDFS-12943 and HDFS-12976.
> A better approach for this could be to check {{HAServiceState}} and find out
> the active NN when performing failover. This also can reduce the # of
> failovers the client has to do in case of multiple SBNs.
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