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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8402) HadoopS3FileSystemITCase.testDirectoryListing fails on Travis
Date Fri, 02 Mar 2018 17:10:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16383822#comment-16383822
] 

ASF GitHub Bot commented on FLINK-8402:
---------------------------------------

GitHub user NicoK opened a pull request:

    https://github.com/apache/flink/pull/5624

    [FLINK-8402][s3][tests] fix hadoop/presto S3 IT cases for eventually-consistent operations

    ## What is the purpose of the change
    
    `HadoopS3FileSystemITCase` and `PrestoS3FileSystemITCase` rely on consistent read-after-write
and delete operations which S3 does not offer and which the `FileSystem` wrappers not always
circumvent. Also see
    https://docs.aws.amazon.com/AmazonS3/latest/dev/Introduction.html#ConsistencyModel
    
    Please merge into `master` and `release-1.5` after accepting.
    
    ## Brief change log
    
    - harden `HadoopS3FileSystemITCase` with respect to eventual-consistent operations by
adding retries of existence checks with an overall deadline of 30s
    - harden `PrestoS3FileSystemITCase` with respect to eventual-consistent operations by
adding retries of existence checks with an overall deadline of 30s
    
    ## Verifying this change
    
    This change is already covered by existing tests, such as `HadoopS3FileSystemITCase` and
`PrestoS3FileSystemITCase` which occasionally failed.
    
    ## Does this pull request potentially affect one of the following parts:
    
      - Dependencies (does it add or upgrade a dependency): **no**
      - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: **no**
      - The serializers: **no**
      - The runtime per-record code paths (performance sensitive): **no**
      - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing,
Yarn/Mesos, ZooKeeper: **no**
      - The S3 file system connector: **yes**
    
    ## Documentation
    
      - Does this pull request introduce a new feature? **no**
      - If yes, how is the feature documented? **not applicable**


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/NicoK/flink flink-8402

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/5624.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #5624
    
----
commit f916ca6d445b5c47903d03440fdb2dabcf504090
Author: Nico Kruber <nico@...>
Date:   2018-03-02T16:26:48Z

    [FLINK-8402][s3][tests] fix hadoop/presto S3 IT cases for eventually-consistent operations
    
    Also see
    https://docs.aws.amazon.com/AmazonS3/latest/dev/Introduction.html#ConsistencyModel

----


> HadoopS3FileSystemITCase.testDirectoryListing fails on Travis
> -------------------------------------------------------------
>
>                 Key: FLINK-8402
>                 URL: https://issues.apache.org/jira/browse/FLINK-8402
>             Project: Flink
>          Issue Type: Bug
>          Components: FileSystem, Tests
>    Affects Versions: 1.5.0
>            Reporter: Till Rohrmann
>            Assignee: Nico Kruber
>            Priority: Blocker
>              Labels: test-stability
>             Fix For: 1.5.0, 1.4.3
>
>
> The test {{HadoopS3FileSystemITCase.testDirectoryListing}} fails on Travis.
> https://travis-ci.org/tillrohrmann/flink/jobs/327021175



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