[jira] [Commented] (DTACLOUD-196) Deltacloud API displays buckets/blobs belonging to different locations(endpoints)

["Marios Andreou (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DTACLOUD-196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13263649#comment-13263649 ] 

Marios Andreou commented on DTACLOUD-196:
-----------------------------------------

OK. I think this ticket is about 3 issues:

1. (ticket title): Deltacloud API displays buckets/blobs belonging to different locations(endpoints) 
2. getting a specific bucket when using a :provider (endpoint) other than the one in which the bucket exists and
3. getting a specific blob when using a :provider (endpoint) other than the one in which the blob's bucket exists.

=========================

1. I don't think this is an issue - at least, I can't find anywhere in the AWS API that states the GET Service (i.e. list buckets) call will return only those buckets that were created in the request endpoint (http://docs.amazonwebservices.com/AmazonS3/latest/API/RESTServiceGET.html)

2. This is a problem with the aws gem. In short, AWS respond with a PermanentRedirect in such cases, providing the endpoint to which the bucket request should be made. I've sent a fix and pull request to aws for this: https://github.com/appoxy/aws/pull/110

3. This is a (potentially at least) problem with AWS. It is related to the PermanentRedirect issue, however, getting blob details (without the blob data itself) is done with a HEAD request. Responses to HEAD do not contain any body, and so I don't know how the aws gem can handle this (i.e. there is no way of knowing where the new request should be made). I've posted a question on the aws forum  here: https://forums.aws.amazon.com/thread.jspa?threadID=93141

A potential fix is to set the endpoint to DEFAULT_REGION when a specific bucket/blob is requested. This however means that although user has requested an endpoint of e.g. 's3-ap-southeas-1' they'd actually get their call routed via s3.amazonaws.com. I don't know if this is acceptable. I attach the patch here for review/comments,

marios

                
> Deltacloud API displays buckets/blobs belonging to different locations(endpoints)
> ---------------------------------------------------------------------------------
>
>                 Key: DTACLOUD-196
>                 URL: https://issues.apache.org/jira/browse/DTACLOUD-196
>             Project: DeltaCloud
>          Issue Type: Bug
>          Components: Client (Ruby), Server
>         Environment: Deltacloud API 0.5.0
> OS - Fedora 15, 16, RHEL, 6.1
> Setup - EC2
> commit - c13da7b50bbbbdc529b42207f58dbe5099006ad1
>            Reporter: Ramesh A
>            Assignee: Marios Andreou
>         Attachments: Error-southeast.png, Error-useast1.png, ap-southeast-1-console-log.txt, us-east-1-console-log.txt
>
>
> Deltacloud API displays buckets/blobs belonging to different locations(endpoints)
> Reproduction Steps:
> ==============
> 1. Change the provider account from default to say ap-northeast-1
> 2. Click on Buckets and create a bucket by providing the location as ap-northeast-1 (i.e, endpoint)
> 3. Click on the created bucket and click on create blob
> 4. Enter the below mentioned blob details and create the blob
>      Blob Name:  Ramesh-Test-Blob
>      Blob Data:  2.txt (empty file uploaded from the home directory)
>      Metadata Key: rananda   
>      Metadata Value:  2
> Scenario - 1: ( for any other providers other than us-east-1)
> ==========
> a. Now change the   provider to say ap-southeast-1.
> b. Click on the buckets
> Expected Result:
> =============
> 1. Should not display bucket which are created in the other providers or endpoints(but displays in this case)
> 2. Click on the bucket 
> Actual Results:
> ============
> 1. Displays buckets belonging to different endpoints
> 2. Clicking on the bucket name throws error stating "Deltacloud::ExceptionHandler::ProviderError - bad URI(is not URI?):"
> Refer "Error-southeast.png" and "ap-southeast-1-console-log.txt" for further information
> Scenario - 2: (for us-east-1 provider)
> ===========
> a. Now change the   provider to say us-east-1
> b. Click on the buckets.
> Expected Result:
> =============
> 1. Should not display bucket which are created in the other providers or endpoints(but displays in this case)
> 2. Click on the bucket.
> 3. Click on the blobs link which was created above
> Actual Results:
> ============
> 1. Displays buckets belonging to different endpoints
> 2. Clicking on the bucket displays the bucket details and also show the attached blob to this bucket
> 3. Clicking on the blob link throws error stating "Deltacloud::ExceptionHandler::ProviderError - NilClass is not a valid input stream. It must walk like either a String, an IO, or a Source."
> Refer "Error-useast1.png" and "us-east-1-console-log.txt" for further details

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