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From "Rajith Attapattu (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (QPID-3602) Fix Consumer message credit issues in 0-10 codepath
Date Fri, 11 Nov 2011 22:28:52 GMT

     [ https://issues.apache.org/jira/browse/QPID-3602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rajith Attapattu updated QPID-3602:
-----------------------------------

    Description: 
Currently there are several issues related to message credits.

1. QPID-2604 - Getting more messages than required by the prefetch value.

2. QPID-3604 - If connection is started and stopped, the client *may* get more messages than
required by the prefetch value.

3. QPID-3562 - Prefetch=1 case doesn't work properly.

4. Prefetch-0 case doesn't work properly (well completely broken).

5. QPID-3612 -Message credits are affected by Command Completions and not message-acks. However
these two are intertwined in the logic causing some issues. For example when in client-ack
mode or using transactions, if the client has exhausted the credits, but is waiting for more
messages to come before it acks or commits a transaction, then the client will appear hung
(This issue is currently masked due to some of the above bugs). 

6. QPID-3613 Credit should be managed on a per subscription basis than on a per session basis.

  was:
Currently there are several issues related to message credits.

1. QPID-2604 - Getting more messages than required by the prefetch value.

2. QPID-3604 - If connection is started and stopped, the client *may* get more messages than
required by the prefetch value.

3. QPID-3562 - Prefetch=1 case doesn't work properly.

4. Prefetch-0 case doesn't work properly (well completely broken).

5. Message credits are affected by Command Completions and not message-acks. However these
two are intertwined in the logic causing some issues. For example when in client-ack mode
or using transactions, if the client has exhausted the credits, but is waiting for more messages
to come before it acks or commits a transaction, then the client will appear hung (This issue
is currently masked due to some of the above bugs). 

    
> Fix Consumer message credit issues in 0-10 codepath
> ---------------------------------------------------
>
>                 Key: QPID-3602
>                 URL: https://issues.apache.org/jira/browse/QPID-3602
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Client
>    Affects Versions: 0.14
>            Reporter: Rajith Attapattu
>            Assignee: Rajith Attapattu
>             Fix For: 0.15
>
>
> Currently there are several issues related to message credits.
> 1. QPID-2604 - Getting more messages than required by the prefetch value.
> 2. QPID-3604 - If connection is started and stopped, the client *may* get more messages
than required by the prefetch value.
> 3. QPID-3562 - Prefetch=1 case doesn't work properly.
> 4. Prefetch-0 case doesn't work properly (well completely broken).
> 5. QPID-3612 -Message credits are affected by Command Completions and not message-acks.
However these two are intertwined in the logic causing some issues. For example when in client-ack
mode or using transactions, if the client has exhausted the credits, but is waiting for more
messages to come before it acks or commits a transaction, then the client will appear hung
(This issue is currently masked due to some of the above bugs). 
> 6. QPID-3613 Credit should be managed on a per subscription basis than on a per session
basis.

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