[ 
https://issues.apache.org/jira/browse/HADOOP-17271?focusedWorklogId=525614&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-525614
 ]

ASF GitHub Bot logged work on HADOOP-17271:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 17/Dec/20 15:46
            Start Date: 17/Dec/20 15:46
    Worklog Time Spent: 10m 
      Work Description: steveloughran commented on pull request #2553:
URL: https://github.com/apache/hadoop/pull/2553#issuecomment-747521734


   Mock test failure. As usual, as likely as a mock-related change as a 
functional code change. But as the committer has been instrumented with stats 
collection, I'm going to suspect the production code first
   
   ```
   java.lang.AssertionError: [Committed objects compared to deleted paths 
org.apache.hadoop.fs.s3a.commit.staging.StagingTestBase$ClientResults@49d4e478{ 
requests=12, uploads=12, parts=12, tagsByUpload=12, commits=5, aborts=7, 
deletes=0}] 
   Expecting:
     
<["s3a://bucket-name/output/path/r_1_1_a8d9a7c6-060d-4e05-8225-96b2c412bb6f-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_1_1_b54314cb-8266-4beb-8ecc-61e0663b3022-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_0_0_65638697-4b34-4320-ad61-817a1ef996ca-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_0_0_d34de224-e5dd-4cd7-93ba-45072d14b534-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_0_0_1fcd9943-5a6e-448b-a887-452393227473-ed6e0eb6-81de-4ffd-abfb-337f78e5c312"]>
   to contain exactly in any order:
     <[]>
   but the following elements were unexpected:
     
<["s3a://bucket-name/output/path/r_1_1_a8d9a7c6-060d-4e05-8225-96b2c412bb6f-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_1_1_b54314cb-8266-4beb-8ecc-61e0663b3022-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_0_0_65638697-4b34-4320-ad61-817a1ef996ca-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_0_0_d34de224-e5dd-4cd7-93ba-45072d14b534-ed6e0eb6-81de-4ffd-abfb-337f78e5c312",
       
"s3a://bucket-name/output/path/r_0_0_1fcd9943-5a6e-448b-a887-452393227473-ed6e0eb6-81de-4ffd-abfb-337f78e5c312"]>
   ```


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

    Worklog Id:     (was: 525614)
    Time Spent: 8h 50m  (was: 8h 40m)

> S3A statistics to support IOStatistics
> --------------------------------------
>
>                 Key: HADOOP-17271
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17271
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.3.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 8h 50m
>  Remaining Estimate: 0h
>
> S3A to rework statistics with
> * API + Implementation split of the interfaces used by subcomponents when 
> reporting stats
> * S3A Instrumentation to implement all the interfaces
> * streams, etc to all implement IOStatisticsSources and serve to callers
> * Add some tracking of durations of remote requests



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