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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HADOOP-17023) Tune listStatus() api of s3a.
Date Tue, 08 Sep 2020 12:09:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-17023?focusedWorklogId=480084&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-480084

ASF GitHub Bot logged work on HADOOP-17023:

                Author: ASF GitHub Bot
            Created on: 08/Sep/20 12:08
            Start Date: 08/Sep/20 12:08
    Worklog Time Spent: 10m 
      Work Description: mukund-thakur commented on pull request #2257:
URL: https://github.com/apache/hadoop/pull/2257#issuecomment-688823862

   > checkstyle complaining with fixable issues
   > ```
   > ./hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Listing.java:370:
   Listing.FileStatusListingIterator filesItr = createFileStatusListingIterator(: Line is
longer than 80 characters (found 81). [LineLength]
   > ./hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java:34:import
java.util.Arrays;:8: Unused import - java.util.Arrays. [UnusedImports]
   > ./hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java:2672:
 private RemoteIterator<S3AFileStatus> innerListStatus(Path f) throws FileNotFoundException,:
Line is longer than 80 characters (found 93). [LineLength]
   > ./hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java:2686:
   }:5: '}' at column 5 should be on the same line as the next part of a multi-block statement
(one that directly contains multiple blocks: if/else-if/else, do/while or try/catch/finally).
   > ./hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/S3ATestUtils.java:45:import
org.apache.hadoop.fs.s3a.impl.TestPartialDeleteFailures;:8: Unused import - org.apache.hadoop.fs.s3a.impl.TestPartialDeleteFailures.
   > ./hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/s3guard/TestS3Guard.java:138:
   S3AFileStatus[] result = S3AUtils.iteratorToStatuses(resultItr, new HashSet<>());:
Line is longer than 80 characters (found 85). [LineLength]
   > ./hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/s3guard/TestS3Guard.java:205:
   S3AFileStatus[] result = S3AUtils.iteratorToStatuses(resultItr, new HashSet<>());:
Line is longer than 80 characters (found 85). [LineLength]
   > ```
   Yes I am going to fix the checkstyle. How is the rest of code? 

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Issue Time Tracking

    Worklog Id:     (was: 480084)
    Time Spent: 1h 50m  (was: 1h 40m)

> Tune listStatus() api of s3a.
> -----------------------------
>                 Key: HADOOP-17023
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17023
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.2.1
>            Reporter: Mukund Thakur
>            Assignee: Mukund Thakur
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
> Similar optimisation which was done for listLocatedSttaus() https://issues.apache.org/jira/browse/HADOOP-16465 
can done for listStatus() api as well. 
> This is going to reduce the number of remote calls in case of directory listing.
> CC [~stevel@apache.org] [~shwethags]

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