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https://issues.apache.org/jira/browse/HDFS-13522?focusedWorklogId=786881&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-786881
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ASF GitHub Bot logged work on HDFS-13522:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Jun/22 23:51
Start Date: 30/Jun/22 23:51
Worklog Time Spent: 10m
Work Description: simbadzina opened a new pull request, #4523:
URL: https://github.com/apache/hadoop/pull/4523
### Description of PR
Allow routers to use observer namenode without an msync on even read.
Is layered on top of the following two
- https://github.com/apache/hadoop/pull/4311
- https://github.com/apache/hadoop/pull/4127 and
I'm still working on cleaning up this PR to add documentation, pick better
variable names and remove unneeded features like "disabling observer read from
the client side". I will also move IPC related changes to the first PR in the
series (https://github.com/apache/hadoop/pull/4311)
### How was this patch tested?
New unit tests.
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
Issue Time Tracking
-------------------
Worklog Id: (was: 786881)
Time Spent: 15.5h (was: 15h 20m)
> 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: 15.5h
> 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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