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Posted to hdfs-issues@hadoop.apache.org by "Takanobu Asanuma (Jira)" <ji...@apache.org> on 2023/01/05 02:28:00 UTC
[jira] [Updated] (HDFS-13522) HDFS-13522: Add federated nameservices states to client protocol and propagate it between routers and clients.
[ https://issues.apache.org/jira/browse/HDFS-13522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Takanobu Asanuma updated HDFS-13522:
------------------------------------
Fix Version/s: (was: 3.3.5)
> HDFS-13522: Add federated nameservices states to client protocol and propagate it between routers and clients.
> --------------------------------------------------------------------------------------------------------------
>
> 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
> Fix For: 3.4.0
>
> 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{}}}.
> This patch captures the state of all namespaces in the routers and propagates it to clients. A follow up patch will change router behavior to direct requests to the observer.
>
>
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