[ 
https://issues.apache.org/jira/browse/HDFS-15785?focusedWorklogId=554070&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-554070
 ]

ASF GitHub Bot logged work on HDFS-15785:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 18/Feb/21 05:14
            Start Date: 18/Feb/21 05:14
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2639:
URL: https://github.com/apache/hadoop/pull/2639#issuecomment-781060345


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 37s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  1s |  |  No case conflicting files 
found.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | +1 :green_heart: |   |   0m  0s | [test4tests](test4tests) |  The patch 
appears to include 1 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |  13m 56s |  |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  22m 14s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  22m 44s |  |  trunk passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  compile  |  19m 39s |  |  trunk passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  checkstyle  |   3m 59s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   4m 13s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  22m  1s |  |  branch has no errors 
when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   3m 12s |  |  trunk passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   4m 11s |  |  trunk passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +0 :ok: |  spotbugs  |  37m 32s |  |  Both FindBugs and SpotBugs are 
enabled, using SpotBugs.  |
   | +1 :green_heart: |  spotbugs  |   8m  9s |  |  trunk passed  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 51s |  |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   2m 50s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  19m 58s |  |  the patch passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javac  |  19m 58s |  |  
root-jdkUbuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 generated 0 new + 1957 unchanged - 2 
fixed = 1957 total (was 1959)  |
   | +1 :green_heart: |  compile  |  17m 56s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  javac  |  17m 56s |  |  
root-jdkPrivateBuild-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 with JDK Private 
Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 generated 0 new + 1852 unchanged - 
2 fixed = 1852 total (was 1854)  |
   | +1 :green_heart: |  checkstyle  |   3m 56s |  |  root: The patch generated 
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   | +1 :green_heart: |  mvnsite  |   4m 11s |  |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  |  The patch has no 
whitespace issues.  |
   | +1 :green_heart: |  xml  |   0m  1s |  |  The patch has no ill-formed XML 
file.  |
   | +1 :green_heart: |  shadedclient  |  13m 19s |  |  patch has no errors 
when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   3m  1s |  |  the patch passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   4m  5s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | -1 :x: |  spotbugs  |   2m 21s | 
[/patch-spotbugs-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2639/5/artifact/out/patch-spotbugs-hadoop-common-project_hadoop-common.txt)
 |  hadoop-common-project/hadoop-common cannot run computeBugHistory from 
spotbugs  |
   | -1 :x: |  spotbugs  |   2m 37s | 
[/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs-client.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2639/5/artifact/out/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs-client.txt)
 |  hadoop-hdfs-project/hadoop-hdfs-client cannot run computeBugHistory from 
spotbugs  |
   | -1 :x: |  spotbugs  |   3m 17s | 
[/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2639/5/artifact/out/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt)
 |  hadoop-hdfs-project/hadoop-hdfs cannot run computeBugHistory from spotbugs  
|
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  17m 13s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  unit  |   2m 37s |  |  hadoop-hdfs-client in the patch 
passed.  |
   | -1 :x: |  unit  | 191m 16s | 
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2639/5/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
 |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   1m  7s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 413m 13s |  |  |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | hadoop.hdfs.TestViewDistributedFileSystem |
   |   | hadoop.hdfs.server.namenode.TestFsck |
   |   | hadoop.hdfs.server.datanode.TestBPOfferService |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2639/5/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2639 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle xml |
   | uname | Linux ec505872b4e5 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 
16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / e391844e8e4 |
   | Default Java | Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2639/5/testReport/ |
   | Max. process+thread count | 3413 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2639/5/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.0.6 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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

    Worklog Id:     (was: 554070)
    Time Spent: 1h 40m  (was: 1.5h)

> Datanode to support using DNS to resolve nameservices to IP addresses to get 
> list of namenodes
> ----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-15785
>                 URL: https://issues.apache.org/jira/browse/HDFS-15785
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Leon Gao
>            Assignee: Leon Gao
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> Currently as HDFS supports observers, multiple-standby and router, the 
> namenode hosts are changing frequently in large deployment, we can consider 
> supporting https://issues.apache.org/jira/browse/HDFS-14118 on datanode to 
> reduce the need to update config frequently on all datanodes. In that case, 
> datanode and clients can use the same set of config as well.
> Basically we can resolve the DNS and generate namenode for each IP behind it.



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