[jira] [Commented] (ARROW-13957) [C++] Make Windows S3FileSystem/Minio tests more reliable

["Antoine Pitrou (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-13957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17412547#comment-17412547 ] 

Antoine Pitrou commented on ARROW-13957:
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One possibility would be to generate a different bucket name for each test, to make them more independent of each other.

> [C++] Make Windows S3FileSystem/Minio tests more reliable
> ---------------------------------------------------------
>
>                 Key: ARROW-13957
>                 URL: https://issues.apache.org/jira/browse/ARROW-13957
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: David Li
>            Priority: Major
>
> [Example log|https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/builds/40696885/job/5t25hl7biwxdipe9]
> {noformat}
> [ RUN      ] TestS3FS.FileSystemFromUri
> WARNING: maximum file descriptor limit 0 is too low for production servers. At least 4096 is recommended. Fix with "ulimit -n 4096"
> C:/projects/arrow/cpp/src/arrow/filesystem/s3fs_test.cc(387): error: Failed
> 'OutcomeToStatus(client_->CreateBucket(req))' failed with IOError: AWS Error [code 130]: Your previous request to create the named bucket succeeded and you already own it.
> C:/projects/arrow/cpp/src/arrow/util/io_util.cc:1523: When trying to delete temporary directory: IOError: Cannot delete directory entry 'C:/Users/appveyor/AppData/Local/Temp/1/s3fs-test-s6295hb6/.minio.sys/tmp/3cb9aaa7-6716-4c53-a30e-c2348f122148': . Detail: [Windows error 145] The directory is not empty.
> [  FAILED  ] TestS3FS.FileSystemFromUri (7172 ms)
> [ RUN      ] TestS3FS.CustomRetryStrategy
> WARNING: maximum file descriptor limit 0 is too low for production servers. At least 4096 is recommended. Fix with "ulimit -n 4096"
> C:/projects/arrow/cpp/src/arrow/util/io_util.cc:1523: When trying to delete temporary directory: IOError: Cannot delete directory entry 'C:/Users/appveyor/AppData/Local/Temp/1/s3fs-test-wm32qa0y/.minio.sys': . Detail: [Windows error 145] The directory is not empty.
> [       OK ] TestS3FS.CustomRetryStrategy (814 ms)
> [----------] 23 tests from TestS3FS (51710 ms total) {noformat}
> The tests are quite slow, and it seems in part because the bucket is being recreated/deleted on every test; also because some things seem to be eventually consistent(?) so we aren't cleaning files up properly.
> It would also be nice here if the error from CreateBucket contained the bucket name.



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