[jira] [Closed] (DISPATCH-2173) 30-Mesh Behaving Badly

["michael goulish (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DISPATCH-2173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

michael goulish closed DISPATCH-2173.
-------------------------------------
    Resolution: Won't Fix

It has been pointed out to me that a 30-mesh is not very realistic.

I was forced to admit that this was probably true.

> 30-Mesh Behaving Badly
> ----------------------
>
>                 Key: DISPATCH-2173
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-2173
>             Project: Qpid Dispatch
>          Issue Type: Bug
>          Components: Router Node
>            Reporter: michael goulish
>            Assignee: michael goulish
>            Priority: Major
>
> While testing scale-up of full-mesh networks I encountered some Bad Behavior at 30 nodes. (435 connections.)
> On my first try, 15 of the routers died.
> On my second try, no nodes died – but the network never converged. It consumed all available CPU (32 cores) for three minutes, and the 30 routers printed a combined total of more than 1000 radius calculations to their logs by the time I became wrathful and cast them all into the Bitbucket of Woe.
>  
> For reference, those radius calculations are how I decide that the network has converged – everybody has settled down and agreed on the topology and stopped talking about it. The last thing each router prints to its log is a radius calculation, and then it's done. This may happen multiple times for each router, but when the total number of such prints stops changing – the network has converged.
>  
> For 15 or 20 routers, the number of such prints was 20 or 40 or so. When this test exceeded that by 25x, I decided it was never going to quit.
>  
> ...Now looking at the logs to see if I can figure out what was happening...
>  



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org