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https://issues.apache.org/jira/browse/HADOOP-11742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Takenori Sato reopened HADOOP-11742:
------------------------------------
I confirmed mkdir fails on an empty bucket for AWS as follows:
1. make sure the bucket is empty, but get an exception
{code}
# hadoop-2.7.0-SNAPSHOT/bin/hdfs dfs -Dfs.s3a.access.key=ACCESS_KEY
-Dfs.s3a.secret.key=SECRET_KEY -ls s3a://s3atest/
15/04/02 01:49:09 DEBUG http.wire: >> "HEAD / HTTP/1.1[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Host: s3atest.s3.amazonaws.com[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Authorization: AWS XXX=[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Date: Thu, 02 Apr 2015 01:49:08
GMT[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "User-Agent: aws-sdk-java/1.7.4
Linux/3.10.0-123.8.1.el7.centos.plus.x86_64
Java_HotSpot(TM)_64-Bit_Server_VM/24.75-b04/1.7.0_75[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Content-Type:
application/x-www-form-urlencoded; charset=utf-8[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Connection: Keep-Alive[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "HTTP/1.1 200 OK[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "x-amz-id-2: XXX[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "x-amz-request-id: XXX[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Date: Thu, 02 Apr 2015 01:49:10
GMT[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Content-Type: application/xml[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Transfer-Encoding: chunked[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Server: AmazonS3[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:09 DEBUG s3a.S3AFileSystem: Getting path status for
s3a://s3atest/ ()
15/04/02 01:49:09 DEBUG http.wire: >> "GET /?delimiter=%2F&max-keys=1&prefix=
HTTP/1.1[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Host: s3atest.s3.amazonaws.com[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Authorization: AWS XXX=[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Date: Thu, 02 Apr 2015 01:49:09
GMT[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "User-Agent: aws-sdk-java/1.7.4
Linux/3.10.0-123.8.1.el7.centos.plus.x86_64
Java_HotSpot(TM)_64-Bit_Server_VM/24.75-b04/1.7.0_75[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Content-Type:
application/x-www-form-urlencoded; charset=utf-8[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "Connection: Keep-Alive[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: >> "[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "HTTP/1.1 200 OK[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "x-amz-id-2: XXX[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "x-amz-request-id: XXX[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Date: Thu, 02 Apr 2015 01:49:10
GMT[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Content-Type: application/xml[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Transfer-Encoding: chunked[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "Server: AmazonS3[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "fe[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "<?xml version="1.0"
encoding="UTF-8"?>[\n]"
15/04/02 01:49:09 DEBUG http.wire: << "<ListBucketResult
xmlns="http://s3.amazonaws.com/doc/2006-03-01/";><Name>s3atest</Name><Prefix></Prefix><Marker></Marker><MaxKeys>1</MaxKeys><Delimiter>/</Delimiter><IsTruncated>false</IsTruncated></ListBucketResult>"
15/04/02 01:49:09 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "0[\r][\n]"
15/04/02 01:49:09 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:09 DEBUG s3a.S3AFileSystem: Not Found: s3a://s3atest/
ls: `s3a://s3atest/': No such file or directory
{code}
2. create a directory, but get an exception
{code}
# hadoop-2.7.0-SNAPSHOT/bin/hdfs dfs -Dfs.s3a.access.key=ACCESS_KEY
-Dfs.s3a.secret.key=SECRET_KEY -mkdir s3a://s3atest/root
15/04/02 01:49:41 DEBUG http.wire: >> "HEAD / HTTP/1.1[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Host: s3atest.s3.amazonaws.com[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Authorization: AWS XXX=[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Date: Thu, 02 Apr 2015 01:49:41
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "User-Agent: aws-sdk-java/1.7.4
Linux/3.10.0-123.8.1.el7.centos.plus.x86_64
Java_HotSpot(TM)_64-Bit_Server_VM/24.75-b04/1.7.0_75[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Content-Type:
application/x-www-form-urlencoded; charset=utf-8[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Connection: Keep-Alive[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "HTTP/1.1 200 OK[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-id-2: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-request-id: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Date: Thu, 02 Apr 2015 01:49:42
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Content-Type: application/xml[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Transfer-Encoding: chunked[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Server: AmazonS3[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG s3a.S3AFileSystem: Getting path status for
s3a://s3atest/root (root)
15/04/02 01:49:41 DEBUG http.wire: >> "HEAD /root HTTP/1.1[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Host: s3atest.s3.amazonaws.com[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Authorization: AWS XXX=[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Date: Thu, 02 Apr 2015 01:49:41
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "User-Agent: aws-sdk-java/1.7.4
Linux/3.10.0-123.8.1.el7.centos.plus.x86_64
Java_HotSpot(TM)_64-Bit_Server_VM/24.75-b04/1.7.0_75[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Content-Type:
application/x-www-form-urlencoded; charset=utf-8[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Connection: Keep-Alive[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "HTTP/1.1 404 Not Found[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-request-id: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-id-2: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Content-Type: application/xml[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Transfer-Encoding: chunked[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Date: Thu, 02 Apr 2015 01:49:41
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Server: AmazonS3[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "HEAD /root/ HTTP/1.1[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Host: s3atest.s3.amazonaws.com[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Authorization: AWS XXX=[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Date: Thu, 02 Apr 2015 01:49:41
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "User-Agent: aws-sdk-java/1.7.4
Linux/3.10.0-123.8.1.el7.centos.plus.x86_64
Java_HotSpot(TM)_64-Bit_Server_VM/24.75-b04/1.7.0_75[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Content-Type:
application/x-www-form-urlencoded; charset=utf-8[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Connection: Keep-Alive[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "HTTP/1.1 404 Not Found[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-request-id: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-id-2: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Content-Type: application/xml[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Transfer-Encoding: chunked[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Date: Thu, 02 Apr 2015 01:49:41
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Server: AmazonS3[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "GET
/?delimiter=%2F&max-keys=1&prefix=root%2F HTTP/1.1[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Host: s3atest.s3.amazonaws.com[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Authorization: AWS XXX=[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Date: Thu, 02 Apr 2015 01:49:41
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "User-Agent: aws-sdk-java/1.7.4
Linux/3.10.0-123.8.1.el7.centos.plus.x86_64
Java_HotSpot(TM)_64-Bit_Server_VM/24.75-b04/1.7.0_75[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Content-Type:
application/x-www-form-urlencoded; charset=utf-8[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Connection: Keep-Alive[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "HTTP/1.1 200 OK[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-id-2: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-request-id: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Date: Thu, 02 Apr 2015 01:49:42
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Content-Type: application/xml[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Transfer-Encoding: chunked[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Server: AmazonS3[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "103[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "<?xml version="1.0"
encoding="UTF-8"?>[\n]"
15/04/02 01:49:41 DEBUG http.wire: << "<ListBucketResult
xmlns="http://s3.amazonaws.com/doc/2006-03-01/";><Name>s3atest</Name><Prefix>root/</Prefix><Marker></Marker><MaxKeys>1</MaxKeys><Delimiter>/</Delimiter><IsTruncated>false</IsTruncated></ListBucketResult>"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "0[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG s3a.S3AFileSystem: Not Found: s3a://s3atest/root
15/04/02 01:49:41 DEBUG s3a.S3AFileSystem: Getting path status for
s3a://s3atest/ ()
15/04/02 01:49:41 DEBUG http.wire: >> "GET /?delimiter=%2F&max-keys=1&prefix=
HTTP/1.1[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Host: s3atest.s3.amazonaws.com[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Authorization: AWS XXX=[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Date: Thu, 02 Apr 2015 01:49:41
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "User-Agent: aws-sdk-java/1.7.4
Linux/3.10.0-123.8.1.el7.centos.plus.x86_64
Java_HotSpot(TM)_64-Bit_Server_VM/24.75-b04/1.7.0_75[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Content-Type:
application/x-www-form-urlencoded; charset=utf-8[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "Connection: Keep-Alive[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: >> "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "HTTP/1.1 200 OK[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-id-2: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "x-amz-request-id: XXX[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Date: Thu, 02 Apr 2015 01:49:42
GMT[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Content-Type: application/xml[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Transfer-Encoding: chunked[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "Server: AmazonS3[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "fe[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "<?xml version="1.0"
encoding="UTF-8"?>[\n]"
15/04/02 01:49:41 DEBUG http.wire: << "<ListBucketResult
xmlns="http://s3.amazonaws.com/doc/2006-03-01/";><Name>s3atest</Name><Prefix></Prefix><Marker></Marker><MaxKeys>1</MaxKeys><Delimiter>/</Delimiter><IsTruncated>false</IsTruncated></ListBucketResult>"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "0[\r][\n]"
15/04/02 01:49:41 DEBUG http.wire: << "[\r][\n]"
15/04/02 01:49:41 DEBUG s3a.S3AFileSystem: Not Found: s3a://s3atest/
mkdir: `s3a://s3atest/root': No such file or directory
{code}
The fix for the unit test was wrong, but the fix for this problem in
_S3AFileSystem#getFileStatus_ is still valid.
> 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
> Affects Versions: 2.7.0
> Environment: CentOS 7
> Reporter: Takenori Sato
> Assignee: Takenori Sato
> Priority: Minor
> Attachments: HADOOP-11742-branch-2.7.001.patch,
> HADOOP-11742-branch-2.7.002.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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