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https://issues.apache.org/jira/browse/HDFS-13522?focusedWorklogId=755313&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-755313
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ASF GitHub Bot logged work on HDFS-13522:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 11/Apr/22 16:52
Start Date: 11/Apr/22 16:52
Worklog Time Spent: 10m
Work Description: simbadzina commented on code in PR #4127:
URL: https://github.com/apache/hadoop/pull/4127#discussion_r847541480
##########
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/client/HdfsClientConfigKeys.java:
##########
@@ -79,6 +79,8 @@
String DFS_NAMENODE_HTTPS_ADDRESS_KEY = "dfs.namenode.https-address";
String DFS_HA_NAMENODES_KEY_PREFIX = "dfs.ha.namenodes";
int DFS_NAMENODE_RPC_PORT_DEFAULT = 8020;
+ String DFS_OBSERVER_READ_ENABLE = "dfs.observer.read.enable";
+ boolean DFS_OBSERVER_READ_ENABLE_DEFAULT = true;
Review Comment:
A default of false preserves client behavior of sending the actual state ID.
When this is true the client sends "-1" as its last seen state ID.
Issue Time Tracking
-------------------
Worklog Id: (was: 755313)
Time Spent: 5h 20m (was: 5h 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: 5h 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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