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https://issues.apache.org/jira/browse/HDFS-13522?focusedWorklogId=787047&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-787047
 ]

ASF GitHub Bot logged work on HDFS-13522:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 01/Jul/22 11:10
            Start Date: 01/Jul/22 11:10
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on PR #4127:
URL: https://github.com/apache/hadoop/pull/4127#issuecomment-1172231611

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 48s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  |  No case conflicting files 
found.  |
   | +0 :ok: |  codespell  |   0m  1s |  |  codespell was not available.  |
   | +0 :ok: |  detsecrets  |   0m  1s |  |  detect-secrets was not available.  
|
   | +0 :ok: |  xmllint  |   0m  1s |  |  xmllint was not available.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 12 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |  31m 14s |  |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  30m  1s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  24m 58s |  |  trunk passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  compile  |  21m 35s |  |  trunk passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  checkstyle  |   4m 37s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   6m 42s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   5m 25s |  |  trunk passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javadoc  |   5m 44s |  |  trunk passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |  11m 47s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  24m 50s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 27s |  |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   4m  8s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  24m 13s |  |  the patch passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javac  |  24m 13s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  21m 35s |  |  the patch passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  javac  |  21m 35s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | -0 :warning: |  checkstyle  |   4m 25s | 
[/results-checkstyle-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4127/18/artifact/out/results-checkstyle-root.txt)
 |  root: The patch generated 2 new + 339 unchanged - 1 fixed = 341 total (was 
340)  |
   | +1 :green_heart: |  mvnsite  |   6m 40s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   5m 17s |  |  the patch passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javadoc  |   5m 45s |  |  the patch passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |  12m 24s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  24m 52s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  18m 29s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  unit  |   2m 54s |  |  hadoop-hdfs-client in the patch 
passed.  |
   | +1 :green_heart: |  unit  | 343m 21s |  |  hadoop-hdfs in the patch 
passed.  |
   | +1 :green_heart: |  unit  |  37m  2s |  |  hadoop-hdfs-rbf in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   1m 57s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 685m 13s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4127/18/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/4127 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint |
   | uname | Linux aa43dfbdfa16 4.15.0-175-generic #184-Ubuntu SMP Thu Mar 24 
17:48:36 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 68d1ee56866a1979db5d667bf21f724352513ad3 |
   | Default Java | Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
   | Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Private 
Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4127/18/testReport/ |
   | Max. process+thread count | 2923 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs 
hadoop-hdfs-project/hadoop-hdfs-rbf U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4127/18/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   




Issue Time Tracking
-------------------

    Worklog Id:     (was: 787047)
    Time Spent: 16h  (was: 15h 50m)

> 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: 16h
>  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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