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[gong yong sheng <gongysh@xxxxxxxxxxxxxxxxxx>]

Following is my understanding:
usage:
scheduler queue is used for compute api server. For example of nova 
boot, API server will send a msg to scheduler queue for a booting
scheduler_*fanout_xxxx is used for service*s to report service 
capability. For example, nova compute **will use scheduler_fanout to 
publish its capabilities.

scheduler.{hostname} seemingly is not used now.
we can deploy many schedulers into a Openstack cloud. All the schedulers 
will listen on scheduler msg queue. AMQP server (rabbitmq) will adopt 
round robin way to
dispatch the msg to these schedulers. But since the capabilities are fan 
outed, all the schedulers can receive these capabilities.

On 10/30/2012 06:55 PM, 韦远科 wrote:
> hi all,
>
> I read into the source code for nova-scheduler and found there 
> actually exists three msg queues, like
> "scheduler"
> "scheduler.node70"
> "scheduler_*fanout_bd738fedcdf344d9bb3cb580657f54e0*".
>
> what's the functions for each queue and are there connections??
>
>
> thanks,
>
>
>
>
>
>
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