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https://issues.apache.org/jira/browse/HDFS-13522?focusedWorklogId=782013&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-782013
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ASF GitHub Bot logged work on HDFS-13522:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 16/Jun/22 11:04
Start Date: 16/Jun/22 11:04
Worklog Time Spent: 10m
Work Description: ZanderXu commented on PR #4441:
URL: https://github.com/apache/hadoop/pull/4441#issuecomment-1157530100
As in my draft PR above, RBF always updates lastSeenTxid from Active and
saves. When an NS enable ObserverRead, RBF will set the stored lastSeenTxid of
this NS to the RPC header and bring it to the Observer NameNode; if the NS
disable ObserverRead, RBF will not set the stated id in RPC header, so even if
the request is passed to the Observer, the Observer will also returns
StandbyException.
Issue Time Tracking
-------------------
Worklog Id: (was: 782013)
Time Spent: 13h 20m (was: 13h 10m)
> 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
>
> Time Spent: 13h 20m
> 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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