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https://issues.apache.org/jira/browse/HDFS-13522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17601957#comment-17601957
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ASF GitHub Bot commented on HDFS-13522:
---------------------------------------
simbadzina commented on code in PR #4311:
URL: https://github.com/apache/hadoop/pull/4311#discussion_r966302346
##########
hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml:
##########
@@ -6446,4 +6446,11 @@
frequently than this time, the client will give up waiting.
</description>
</property>
+ <property>
+ <name>dfs.observer.read.enable</name>
+ <value>true</value>
+ <description>
+ Enable observer read for client with router
Review Comment:
I no longer have this setting in the client. We may add it back in a future
PR.
> RBF: Support observer node from Router-Based Federation
> -------------------------------------------------------
>
> Key: HDFS-13522
> URL: https://issues.apache.org/jira/browse/HDFS-13522
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: federation, namenode
> Reporter: Erik Krogen
> Assignee: Simbarashe Dzinamarira
> Priority: Major
> Labels: pull-request-available
> Attachments: HDFS-13522.001.patch, HDFS-13522.002.patch,
> HDFS-13522_WIP.patch, RBF_ Observer support.pdf, Router+Observer RPC
> clogging.png, ShortTerm-Routers+Observer.png,
> observer_reads_in_rbf_proposal_simbadzina_v1.pdf,
> observer_reads_in_rbf_proposal_simbadzina_v2.pdf
>
> Time Spent: 20h 50m
> Remaining Estimate: 0h
>
> Changes will need to occur to the router to support the new observer node.
> One such change will be to make the router understand the observer state,
> e.g. {{FederationNamenodeServiceState}}.
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