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From "Chuck Rolke (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DISPATCH-1125) AMQP framing errors on forwarded multicast messages
Date Fri, 21 Sep 2018 17:21:00 GMT

     [ https://issues.apache.org/jira/browse/DISPATCH-1125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chuck Rolke updated DISPATCH-1125:
    Attachment: DISPATCH-1125.txt

> AMQP framing errors on forwarded multicast messages
> ---------------------------------------------------
>                 Key: DISPATCH-1125
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-1125
>             Project: Qpid Dispatch
>          Issue Type: Bug
>          Components: Router Node
>    Affects Versions: 1.3.0
>            Reporter: Chuck Rolke
>            Priority: Major
>         Attachments: DISPATCH-1125.txt
> These errors show up using the same setup described in DISPATCH-1124.
> A three-router linear network uses a wireless connection for the interrouter links.
> Messages are injected into a router at one end of the chain and are forwarded to receivers
on the other two routers.
>  * The receiver attached to the router in the middle may receive tens of millions of
messages before getting an underflow.
>  * The receiver attached to the router at the far end of the chain may file as soon as
25 messages or as late as several thousand messages.
>  * Messages are text strings 1,443 bytes long
> Some observations:
>  * Normal transfer frames haveĀ  transport size of 0x5ec bytes.
>  * Messages that fail with underrun commonly have a size of 0x1aa bytes. It is not always
0x1aa but that number shows up in consecutive runs.

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