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https://issues.apache.org/jira/browse/HADOOP-8545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13573274#comment-13573274
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Dmitry Mezhensky commented on HADOOP-8545:
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|1. Can you instantiate a swift fs with Path#getFileSystem(conf)? This is how a
fs should work since it means that existing code will work just by changing the
scheme or defaultFS to swift.
It instantiates correctly if required configuration present
| 2. You probably don't want to store the full uri since when a filesystem is
obtained for a Path, it's going to be a full URI of the Path. Should probably
do this: this.uri = URI.create(uri.getScheme()+"://"+uri.getAuthority());
I need full url for different containers and swift installations support, for
example different containers: swift://data.rackspace/var/runs and
swift://result.rackspace/home/hadoop (data and result are different containers
in Swift)
| 3. I don't understand the contortions to set the initial working directory.
Maybe this.workingDir = getHomeDirectory() like DFS since I think it's doing
what you want in a cleaner way.
I'll try to simplify it
| 4. The custom isDirectory behavior is probably better implemented in a
FileStatus subclass. Otherwise, stat = fs.isDirectory(path) !=
stat.isDirectory()}}
Directory support in Swift is quite complicated, I think we can't do so.
| The main reason I looked at this is integration with security. You seem to
have your own token implementation, but it's not tied into getDelegationToken.
If you don't implement that, I don't think jobs are going to be able to use
this fs.
Yes, Swift has it's ouw token implementation.
> Filesystem Implementation for OpenStack Swift
> ---------------------------------------------
>
> Key: HADOOP-8545
> URL: https://issues.apache.org/jira/browse/HADOOP-8545
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs
> Affects Versions: 2.0.3-alpha, 1.1.2
> Reporter: Tim Miller
> Assignee: Dmitry Mezhensky
> Attachments: HADOOP-8545-1.patch, HADOOP-8545-2.patch,
> HADOOP-8545-3.patch, HADOOP-8545-4.patch, HADOOP-8545-5.patch,
> HADOOP-8545-6.patch, HADOOP-8545-7.patch, HADOOP-8545-8.patch,
> HADOOP-8545-javaclouds-2.patch, HADOOP-8545.patch, HADOOP-8545.patch
>
>
> Add a filesystem implementation for OpenStack Swift object store, similar to
> the one which exists today for S3.
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