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https://issues.apache.org/jira/browse/HDFS-15079?focusedWorklogId=788330&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-788330
 ]

ASF GitHub Bot logged work on HDFS-15079:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Jul/22 16:41
            Start Date: 06/Jul/22 16:41
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on PR #4530:
URL: https://github.com/apache/hadoop/pull/4530#issuecomment-1176442344

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   1m  4s |  |  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.  
|
   | +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 3 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |  14m 58s |  |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  28m 21s |  |  trunk passed  |
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Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
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Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
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   | +1 :green_heart: |  mvnsite  |   5m 13s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   4m 16s |  |  trunk passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javadoc  |   4m 33s |  |  trunk passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
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   | +1 :green_heart: |  shadedclient  |  24m 46s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 32s |  |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   3m 20s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  24m 57s |  |  the patch passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javac  |  24m 57s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  21m 59s |  |  the patch passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  javac  |  21m 59s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | +1 :green_heart: |  checkstyle  |   4m 24s |  |  root: The patch generated 
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   | +1 :green_heart: |  mvnsite  |   5m 14s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   4m  9s |  |  the patch passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javadoc  |   4m 36s |  |  the patch passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |   9m  8s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  24m 36s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  18m 13s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  unit  | 379m 26s |  |  hadoop-hdfs in the patch 
passed.  |
   | +1 :green_heart: |  unit  |  34m 32s |  |  hadoop-hdfs-rbf in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   1m 40s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 684m 39s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4530/3/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/4530 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
   | uname | Linux 1b0a6da5dc5f 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 / a29bedfeb1fb2f3fd22a525632e03ebd1d357c0d |
   | Default Java | Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
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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-4530/3/testReport/ |
   | Max. process+thread count | 2329 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs hadoop-hdfs-project/hadoop-hdfs-rbf U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4530/3/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: 788330)
    Time Spent: 1h  (was: 50m)

> RBF: Client maybe get an unexpected result with network anomaly 
> ----------------------------------------------------------------
>
>                 Key: HDFS-15079
>                 URL: https://issues.apache.org/jira/browse/HDFS-15079
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: rbf
>    Affects Versions: 3.3.0
>            Reporter: Hui Fei
>            Priority: Critical
>              Labels: pull-request-available
>         Attachments: HDFS-15079.001.patch, HDFS-15079.002.patch, 
> UnexpectedOverWriteUT.patch
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
>  I find there is a critical problem on RBF, HDFS-15078 can resolve it on some 
> Scenarios, but i have no idea about the overall resolution.
> The problem is that
> Client with RBF(r0, r1) create a file HDFS file via r0, it gets Exception and 
> failovers to r1
> r0 has been send create rpc to namenode(1st create)
> Client create a HDFS file via r1(2nd create)
> Client writes the HDFS file and close it finally(3rd close)
> Maybe namenode receiving the rpc in order as follow
> 2nd create
> 3rd close
> 1st create
> And overwrite is true by default, this would make the file had been written 
> an empty file. This is an critical problem 
> We had encountered this problem. There are many hive and spark jobs running 
> on our cluster,   sometimes it occurs



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