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Posted to common-issues@hadoop.apache.org by "Takenori Sato (JIRA)" <ji...@apache.org> on 2015/03/25 07:39:53 UTC
[jira] [Commented] (HADOOP-11742) mkdir by file system shell fails
on an empty bucket
[ https://issues.apache.org/jira/browse/HADOOP-11742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14379380#comment-14379380 ]
Takenori Sato commented on HADOOP-11742:
----------------------------------------
I checked how this is covered in test cases. _NativeS3FileSystemContractBaseTest#testListStatusForRoot_ looks like a relevant test for s3n. But something similar is not found for s3a.
But _TestS3AContractRootDir_ is supposed to test this scenario, correct?
> mkdir by file system shell fails on an empty bucket
> ---------------------------------------------------
>
> Key: HADOOP-11742
> URL: https://issues.apache.org/jira/browse/HADOOP-11742
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/s3
> Environment: CentOS 7
> Reporter: Takenori Sato
> Attachments: HADOOP-11742-branch-2.7.001.patch
>
>
> I have built the latest 2.7, and tried S3AFileSystem.
> Then found that _mkdir_ fails on an empty bucket, named *s3a* here, as follows:
> {code}
> # hadoop-2.7.0-SNAPSHOT/bin/hdfs dfs -mkdir s3a://s3a/foo
> 15/03/24 03:49:35 DEBUG s3a.S3AFileSystem: Getting path status for s3a://s3a/foo (foo)
> 15/03/24 03:49:36 DEBUG s3a.S3AFileSystem: Not Found: s3a://s3a/foo
> 15/03/24 03:49:36 DEBUG s3a.S3AFileSystem: Getting path status for s3a://s3a/ ()
> 15/03/24 03:49:36 DEBUG s3a.S3AFileSystem: Not Found: s3a://s3a/
> mkdir: `s3a://s3a/foo': No such file or directory
> {code}
> So does _ls_.
> {code}
> # hadoop-2.7.0-SNAPSHOT/bin/hdfs dfs -ls s3a://s3a/
> 15/03/24 03:47:48 DEBUG s3a.S3AFileSystem: Getting path status for s3a://s3a/ ()
> 15/03/24 03:47:48 DEBUG s3a.S3AFileSystem: Not Found: s3a://s3a/
> ls: `s3a://s3a/': No such file or directory
> {code}
> This is how it works via s3n.
> {code}
> # hadoop-2.7.0-SNAPSHOT/bin/hdfs dfs -ls s3n://s3n/
> # hadoop-2.7.0-SNAPSHOT/bin/hdfs dfs -mkdir s3n://s3n/foo
> # hadoop-2.7.0-SNAPSHOT/bin/hdfs dfs -ls s3n://s3n/
> Found 1 items
> drwxrwxrwx - 0 1970-01-01 00:00 s3n://s3n/foo
> {code}
> The snapshot is the following:
> {quote}
> \# git branch
> \* branch-2.7
> trunk
> \# git log
> commit 929b04ce3a4fe419dece49ed68d4f6228be214c1
> Author: Harsh J <ha...@cloudera.com>
> Date: Sun Mar 22 10:18:32 2015 +0530
> {quote}
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