Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Michael Pittaro
On Wed, Dec 7, 2011 at 7:26 AM, Sandy Walsh wrote: > For orchestration (and now the scheduler improvements) we need to know when > an operation fails ... and specifically, which resource was involved. In the > majority of the cases it's an instance_uuid we're looking for, but it could > be a se

Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Sandy Walsh
...@rackspace.com] Sent: Wednesday, December 07, 2011 1:55 PM To: Yun Mao Cc: openstack@lists.launchpad.net Subject: Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit True ... this idea has come up before (and is still being kicked around). My biggest concern is what happens if

Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Sandy Walsh
1:03 PM To: Sandy Walsh Cc: openstack@lists.launchpad.net Subject: Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit Hi Sandy, I'm wondering if it is possible to change the scheduler's rpc cast to rpc call. This way the exceptions should be magically pr

Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Yun Mao
Hi Sandy, I'm wondering if it is possible to change the scheduler's rpc cast to rpc call. This way the exceptions should be magically propagated back to the scheduler, right? Naturally the scheduler can find another node to retry or decide to give up and report failure. If we need to provision man

Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Sandy Walsh
...@rackspace.com] Sent: Wednesday, December 07, 2011 12:36 PM To: openstack@lists.launchpad.net Subject: Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit Gotcha. So the way this might work is, for example, when a run_instance fails on compute node, it would publish a

Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Mark Washenberger
gt; Sent: Wednesday, December 07, 2011 11:53 AM > To: openstack@lists.launchpad.net > Subject: Re: [Openstack] [Orchestration] Handling error events ... explicit > > vs. implicit > > Can you talk a little more about how you want to apply this failure > notification? >

Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Sandy Walsh
=rackspace@lists.launchpad.net] on behalf of Mark Washenberger [mark.washenber...@rackspace.com] Sent: Wednesday, December 07, 2011 11:53 AM To: openstack@lists.launchpad.net Subject: Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit Can you talk a little more about how y

Re: [Openstack] [Orchestration] Handling error events ... explicit vs. implicit

2011-12-07 Thread Mark Washenberger
Can you talk a little more about how you want to apply this failure notification? That is, what is the case where you are going to use the information that an operation failed? In my head I have an idea of getting code simplicity dividends from an "everything succeeds" approach to some of our o