Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Sandy Walsh
On 08/01/2013 07:25 PM, Doug Hellmann wrote: > > > > On Thu, Aug 1, 2013 at 9:25 AM, Julien Danjou > wrote: > > On Thu, Aug 01 2013, Sandy Walsh wrote: > > > Right, that is a concern. Within RAX we have two downstream services > > that consume notifica

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Doug Hellmann
On Thu, Aug 1, 2013 at 9:25 AM, Julien Danjou wrote: > On Thu, Aug 01 2013, Sandy Walsh wrote: > > > Right, that is a concern. Within RAX we have two downstream services > > that consume notifications (StackTach and Yagi) and we've configured > > nova to write to two queues. --notifications_topic

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Rosa, Andrea (HP Cloud Services)
HI >AFAIK, amqp only uses the exchange as a dispatcher and all storage is done in >the queue ... but I could be wrong. I vaguely recall there being a durable >exchange setting as well as durable queue. AFAIK if a message can't be routed there are three options: - the message is discarded (I thi

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Sandy Walsh
On 08/01/2013 10:25 AM, Julien Danjou wrote: > On Thu, Aug 01 2013, Sandy Walsh wrote: > >> Right, that is a concern. Within RAX we have two downstream services >> that consume notifications (StackTach and Yagi) and we've configured >> nova to write to two queues. --notifications_topics can take

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Julien Danjou
On Thu, Aug 01 2013, Sandy Walsh wrote: > Right, that is a concern. Within RAX we have two downstream services > that consume notifications (StackTach and Yagi) and we've configured > nova to write to two queues. --notifications_topics can take a list. Fair enough. So IIUC that means we should ch

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Sandy Walsh
On 08/01/2013 09:19 AM, Julien Danjou wrote: > On Thu, Aug 01 2013, Sandy Walsh wrote: > >> Hmm, if notifications are turned on, it should fill up. For billing >> purposes we don't want to lose events simply because there is no >> consumer. Operations would alert on it and someone would need to

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Julien Danjou
On Thu, Aug 01 2013, Sandy Walsh wrote: > Hmm, if notifications are turned on, it should fill up. For billing > purposes we don't want to lose events simply because there is no > consumer. Operations would alert on it and someone would need to put out > the fire. So currently, are we're possibly

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Sandy Walsh
On 08/01/2013 07:02 AM, Mark McLoughlin wrote: > On Thu, 2013-08-01 at 10:36 +0200, Julien Danjou wrote: >> On Thu, Aug 01 2013, Sam Morrison wrote: >> >>> OK so is it that ceilometer just leaves the message on the queue or >>> only consumes certain messages? >> >> Ceilometer uses its own queue.

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Mark McLoughlin
On Thu, 2013-08-01 at 10:36 +0200, Julien Danjou wrote: > On Thu, Aug 01 2013, Sam Morrison wrote: > > > OK so is it that ceilometer just leaves the message on the queue or > > only consumes certain messages? > > Ceilometer uses its own queue. There might be other processes consuming > this notif

Re: [openstack-dev] [Openstack] Ceilometer and notifications

2013-08-01 Thread Julien Danjou
On Thu, Aug 01 2013, Sam Morrison wrote: > OK so is it that ceilometer just leaves the message on the queue or > only consumes certain messages? Ceilometer uses its own queue. There might be other processes consuming this notifications, so removing them may be not a good idea. The problem may be