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Posted to issues@camel.apache.org by "Nikolaos Dimos (Updated) (JIRA)" <ji...@apache.org> on 2012/03/08 17:49:58 UTC

[jira] [Updated] (CAMEL-5070) Message Loss when using Weighted Round Robin LoadBalancer

     [ https://issues.apache.org/jira/browse/CAMEL-5070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nikolaos Dimos updated CAMEL-5070:
----------------------------------

    Attachment: loadbalancer-itest.zip

Attaching the maven project that contains the camel route, the custom activemq commands and the itest subproject
                
> Message Loss when using Weighted Round Robin LoadBalancer
> ---------------------------------------------------------
>
>                 Key: CAMEL-5070
>                 URL: https://issues.apache.org/jira/browse/CAMEL-5070
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.9.1
>            Reporter: Nikolaos Dimos
>         Attachments: loadbalancer-itest.zip
>
>
> chooseProcessor method accesses resources in a non synchronized fashion. This leads in errors during loadbalancing and as a result messages are lost. I have created a project that provides an integration test (using karaf 2.2.5 and a custom command to check messages of the activemq broker) with a custom weighted round robin loadbalancer that "seems" to solve the issue of lost messages.
>  
> The problem with the provided solution is that when messages are dequeued from the second stage of queues (queues1, 2 and 3) in custom-loadbalancer-route subproject the jmsconsumer threads also block (checked this using profiler). I would expect only the jmsconsumer threads of the first queue (initial.queue) to block waiting for the synchronized chooseProcessor method. Any clues on why this happens?

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