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Posted to dev@qpid.apache.org by "Gordon Sim (Created) (JIRA)" <ji...@apache.org> on 2012/04/11 11:04:18 UTC

[jira] [Created] (QPID-3943) subscription queues for links with no explicit name not marked auto-delete

subscription queues for links with no explicit name not marked auto-delete
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                 Key: QPID-3943
                 URL: https://issues.apache.org/jira/browse/QPID-3943
             Project: Qpid
          Issue Type: Improvement
          Components: Python Client
            Reporter: Gordon Sim
            Priority: Minor
             Fix For: 0.17


On creating a receiver from an exchange, the subscription queue created is marked exclusive, but not auto-delete. This means if the connection is lost without proper cleanup, the queue will remain on the server. Since the queue name is by default a library generated UUID, there is no way for the application to resubscribe to that queue. In other words it really should be marked auto-delete. This would also then match the c++ client and provide a more uniform experience across languages.

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[jira] [Assigned] (QPID-3943) subscription queues for links with no explicit name not marked auto-delete

Posted by "Gordon Sim (Assigned) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/QPID-3943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gordon Sim reassigned QPID-3943:
--------------------------------

    Assignee: Gordon Sim
    
> subscription queues for links with no explicit name not marked auto-delete
> --------------------------------------------------------------------------
>
>                 Key: QPID-3943
>                 URL: https://issues.apache.org/jira/browse/QPID-3943
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Python Client
>            Reporter: Gordon Sim
>            Assignee: Gordon Sim
>            Priority: Minor
>             Fix For: 0.17
>
>
> On creating a receiver from an exchange, the subscription queue created is marked exclusive, but not auto-delete. This means if the connection is lost without proper cleanup, the queue will remain on the server. Since the queue name is by default a library generated UUID, there is no way for the application to resubscribe to that queue. In other words it really should be marked auto-delete. This would also then match the c++ client and provide a more uniform experience across languages.

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[jira] [Resolved] (QPID-3943) subscription queues for links with no explicit name not marked auto-delete

Posted by "Gordon Sim (Resolved) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/QPID-3943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gordon Sim resolved QPID-3943.
------------------------------

    Resolution: Fixed
    
> subscription queues for links with no explicit name not marked auto-delete
> --------------------------------------------------------------------------
>
>                 Key: QPID-3943
>                 URL: https://issues.apache.org/jira/browse/QPID-3943
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Python Client
>            Reporter: Gordon Sim
>            Assignee: Gordon Sim
>            Priority: Minor
>             Fix For: 0.17
>
>
> On creating a receiver from an exchange, the subscription queue created is marked exclusive, but not auto-delete. This means if the connection is lost without proper cleanup, the queue will remain on the server. Since the queue name is by default a library generated UUID, there is no way for the application to resubscribe to that queue. In other words it really should be marked auto-delete. This would also then match the c++ client and provide a more uniform experience across languages.

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[jira] [Commented] (QPID-3943) subscription queues for links with no explicit name not marked auto-delete

Posted by "Gordon Sim (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/QPID-3943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251425#comment-13251425 ] 

Gordon Sim commented on QPID-3943:
----------------------------------

Suggested fix:

{noformat}
Index: qpid/messaging/driver.py
===================================================================
--- qpid/messaging/driver.py	(revision 1311665)
+++ qpid/messaging/driver.py	(working copy)
@@ -226,7 +226,11 @@
 
   def do_link(self, sst, rcv, _rcv, type, subtype, action):
     link_opts = _rcv.options.get("link", {})
-    reliability = link_opts.get("reliability", "at-least-once")
+    if type == "topic":
+      default_reliability = "unreliable"
+    else:
+      default_reliability = "at-least-once"
+    reliability = link_opts.get("reliability", default_reliability)
     declare = link_opts.get("x-declare", {})
     subscribe = link_opts.get("x-subscribe", {})
     acq_mode = acquire_mode.pre_acquired
{noformat}
                
> subscription queues for links with no explicit name not marked auto-delete
> --------------------------------------------------------------------------
>
>                 Key: QPID-3943
>                 URL: https://issues.apache.org/jira/browse/QPID-3943
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Python Client
>            Reporter: Gordon Sim
>            Assignee: Gordon Sim
>            Priority: Minor
>             Fix For: 0.17
>
>
> On creating a receiver from an exchange, the subscription queue created is marked exclusive, but not auto-delete. This means if the connection is lost without proper cleanup, the queue will remain on the server. Since the queue name is by default a library generated UUID, there is no way for the application to resubscribe to that queue. In other words it really should be marked auto-delete. This would also then match the c++ client and provide a more uniform experience across languages.

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