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https://issues.apache.org/jira/browse/HADOOP-13704?focusedWorklogId=745834&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-745834
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ASF GitHub Bot logged work on HADOOP-13704:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 22/Mar/22 13:47
            Start Date: 22/Mar/22 13:47
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus removed a comment on pull request #3978:
URL: https://github.com/apache/hadoop/pull/3978#issuecomment-1046907425


   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
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   |||| _ Prechecks _ |
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   | +0 :ok: |  markdownlint  |   0m  0s |  |  markdownlint was not available.  
|
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   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
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   |||| _ trunk Compile Tests _ |
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Ubuntu-11.0.13+8-Ubuntu-0ubuntu1.20.04  |
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Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
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   | +1 :green_heart: |  shadedclient  |  21m 10s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 28s |  |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   1m 35s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  21m 53s |  |  the patch passed with JDK 
Ubuntu-11.0.13+8-Ubuntu-0ubuntu1.20.04  |
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Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
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Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
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   | +1 :green_heart: |  shadedclient  |  21m 22s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  32m  7s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  unit  |   2m 46s |  |  hadoop-aws in the patch passed. 
 |
   | +1 :green_heart: |  asflicense  |   0m 59s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 233m 23s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3978/5/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/3978 |
   | Optional Tests | dupname asflicense mvnsite codespell markdownlint compile 
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   | uname | Linux a16af9ec9b1c 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
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   | Build tool | maven |
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   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3978/5/testReport/ |
   | Max. process+thread count | 1664 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-tools/hadoop-aws 
U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3978/5/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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

    Worklog Id:     (was: 745834)
    Time Spent: 3h  (was: 2h 50m)

> S3A getContentSummary() to move to listFiles(recursive) to count children; 
> instrument use
> -----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-13704
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13704
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.8.0
>            Reporter: Steve Loughran
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 3h
>  Remaining Estimate: 0h
>
> Hive and a bit of Spark use {{getContentSummary()}} to get some summary stats 
> of a filesystem. This is very expensive on S3A (and any other object store), 
> especially as the base implementation does the recursive tree walk.
> Because of HADOOP-13208, we have a full enumeration of files under a path 
> without directory costs...S3A can/should switch to this to speed up those 
> places where the operation is called.
> Also
> * API call needs FS spec and contract tests
> * S3A could instrument invocation, so as to enable real-world popularity to 
> be measured



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