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https://issues.apache.org/jira/browse/HDFS-14016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chen Liang updated HDFS-14016:
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Status: Patch Available (was: Open)
> ObserverReadProxyProvider should enable observer read by default
> ----------------------------------------------------------------
>
> Key: HDFS-14016
> URL: https://issues.apache.org/jira/browse/HDFS-14016
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Chen Liang
> Assignee: Chen Liang
> Priority: Major
> Attachments: HDFS-14016-HDFS-12943.001.patch
>
>
> Currently in {{ObserverReadProxyProvider#invoke}}, only when
> {{observerReadEnabled && isRead(method)}} is true, the code will check
> whether to talk to Observer. Otherwise always talk to active. The issue here
> is that currently it can only be set through {{setObserverReadEnabled}},
> which is used by tests only. So observer read is always disabled in
> deployment and no way to enable it. We may want to either expose a
> configuration key, or hard code it to true so it can only be changed for
> testing purpose, or simply remove this variable. This is closely related to
> HDFS-13923.
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