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Posted to dev@qpid.apache.org by "Rajith Attapattu (Updated) (JIRA)" <ji...@apache.org> on 2011/11/09 22:25:51 UTC

[jira] [Updated] (QPID-3602) Fix Consumer message credit issues in 0-10 codepath

     [ 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. 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). 

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

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

2. If connection is started and stopped, the client *may* get more messages than required by the prefetch value (no JIRA).

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

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. 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). 

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