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From "Alan Conway (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-6676) QPID 0.32 throughput drop sharply with HA module
Date Tue, 04 Aug 2015 20:11:04 GMT

    [ https://issues.apache.org/jira/browse/QPID-6676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654278#comment-14654278
] 

Alan Conway commented on QPID-6676:
-----------------------------------

Thanks for the excellent bug report, your instructions to reproduce the bug are refreshingly
clear.
This is a bug, I see exactly what you describe. I will investigate and fix as soon as I can.

> QPID 0.32 throughput drop sharply with HA module
> ------------------------------------------------
>
>                 Key: QPID-6676
>                 URL: https://issues.apache.org/jira/browse/QPID-6676
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker, C++ Clustering
>    Affects Versions: 0.32, qpid-cpp-0.34
>         Environment: CentOS6.5 X86_64
>            Reporter: Robert Lee
>            Assignee: Alan Conway
>            Priority: Critical
>
> I build QPID 0.32 C++ broker with HA module on CentOS6.5 and run a cluster of 2 nodes
with --ha-replicate=all, Then send messages using QPID Messaging API continuously with protocol
AMQP0-10 and I meet a strange problem,If I purge all of messages in a queue and continue to
send messages,The throughput drop sharply. And the same problem seen on QPID 0.34
> Steps to reproduce:
> 1:
>     qpid-config add exchange direct testHA.exchange
>     qpid-config add queue testHA.queue --max-queue-size 1048576000
>     qpid-config bind testHA.exchange testHA.queue testHA.binding
> 2:
>     Run "qpid-queue-stats -f testHA.queue" on a console
> 3:
>     Send 100000 messages to testHA.exchange with routingkey testHA.binding
> 4:
>     Purge queue use the QPID manager tool (qpid-tool)
> 5:
>     Repeat step 3
> In the step 3, I can send about 8000 messages per second one producer, and In step 4,
I purge all messages in the queue, then send messages continue, I can only send about 300
messages per second, But when I shutdown the backup node the throughput back to normal



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