[ 
https://issues.apache.org/jira/browse/HDFS-15554?focusedWorklogId=481758&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-481758
 ]

ASF GitHub Bot logged work on HDFS-15554:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 10/Sep/20 22:32
            Start Date: 10/Sep/20 22:32
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2266:
URL: https://github.com/apache/hadoop/pull/2266#issuecomment-690766821


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | +0 :ok: |  reexec  |  33m 24s |  Docker mode activated.  |
   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files 
found.  |
   | +0 :ok: |  markdownlint  |   0m  1s |  markdownlint 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 
4 new or modified test files.  |
   ||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  29m 21s |  trunk passed  |
   | +1 :green_heart: |  compile  |   0m 40s |  trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  compile  |   0m 36s |  trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  checkstyle  |   0m 27s |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   0m 40s |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  15m 26s |  branch has no errors when 
building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   0m 40s |  trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   0m 54s |  trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +0 :ok: |  spotbugs  |   1m 13s |  Used deprecated FindBugs config; 
considering switching to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   1m 10s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 31s |  the patch passed  |
   | +1 :green_heart: |  compile  |   0m 32s |  the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javac  |   0m 32s |  
hadoop-hdfs-project_hadoop-hdfs-rbf-jdkUbuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
 with JDK Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 generated 0 new + 30 
unchanged - 2 fixed = 30 total (was 32)  |
   | +1 :green_heart: |  compile  |   0m 28s |  the patch passed with JDK 
Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  javac  |   0m 28s |  
hadoop-hdfs-project_hadoop-hdfs-rbf-jdkPrivateBuild-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01
 with JDK Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 generated 0 new 
+ 30 unchanged - 2 fixed = 30 total (was 32)  |
   | +1 :green_heart: |  checkstyle  |   0m 17s |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   0m 30s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace 
issues.  |
   | +1 :green_heart: |  xml  |   0m  2s |  The patch has no ill-formed XML 
file.  |
   | +1 :green_heart: |  shadedclient  |  13m 56s |  patch has no errors when 
building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   0m 33s |  the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   0m 50s |  the patch passed with JDK 
Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  findbugs  |   1m 14s |  the patch passed  |
   ||| _ Other Tests _ |
   | -1 :x: |  unit  |   8m 39s |  hadoop-hdfs-rbf in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   0m 33s |  The patch does not generate 
ASF License warnings.  |
   |  |   | 114m 33s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | 
hadoop.hdfs.server.federation.router.TestRouterRpcMultiDestination |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2266/6/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2266 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient findbugs checkstyle xml markdownlint |
   | uname | Linux 490356438ed4 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 9960c01a25c |
   | Default Java | Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
   | unit | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2266/6/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs-rbf.txt
 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2266/6/testReport/ |
   | Max. process+thread count | 2936 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: 
hadoop-hdfs-project/hadoop-hdfs-rbf |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2266/6/console |
   | versions | git=2.17.1 maven=3.6.0 findbugs=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: 481758)
    Time Spent: 3h 10m  (was: 3h)

> RBF: force router check file existence in destinations before adding/updating 
> mount points
> ------------------------------------------------------------------------------------------
>
>                 Key: HDFS-15554
>                 URL: https://issues.apache.org/jira/browse/HDFS-15554
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Fengnan Li
>            Assignee: Fengnan Li
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 3h 10m
>  Remaining Estimate: 0h
>
> Adding/Updating mount points right now is only a router action without 
> validation in the downstream namenodes for the destination files/directories.
> In practice we have set up the dangling mount points and when clients call 
> listStatus they would get the file returned, but then if they try to access 
> the file FileNotFoundException would be thrown out.



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