Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-19 Thread Amit Ugol
On Tue, Mar 18, 2014 at 10:54:08PM +0800, Qiming Teng wrote: Hi, Folks, I have been trying to implement a HACluster resource type in Heat. I haven't created a BluePrint for this because I am not sure everything will work as expected. The basic idea is to extend the

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-19 Thread Chris Friesen
On 03/18/2014 11:18 AM, Zane Bitter wrote: On 18/03/14 12:42, Steven Dake wrote: You should be able to use the HARestarter resource and functionality to do healthchecking of a vm. HARestarter is actually pretty problematic, both in a causes major architectural headaches for Heat and will

[openstack-dev] [Nova][Heat] How to reliably detect VM failures? (Zane Bitter)

2014-03-19 Thread WICKES, ROGER
On 03/18/2014 07:54 AM, Qiming Teng wrote: Hi, Folks, I have been trying to implement a HACluster resource type in Heat. I haven't created a BluePrint for this because I am not sure everything will work as expected. ... The most difficult issue here is to come up with a reliable VM

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-19 Thread Zane Bitter
On 19/03/14 02:07, Chris Friesen wrote: On 03/18/2014 11:18 AM, Zane Bitter wrote: On 18/03/14 12:42, Steven Dake wrote: You should be able to use the HARestarter resource and functionality to do healthchecking of a vm. HARestarter is actually pretty problematic, both in a causes major

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-19 Thread Qiming Teng
On Wed, Mar 19, 2014 at 12:08:30PM -0400, Zane Bitter wrote: On 19/03/14 02:07, Chris Friesen wrote: On 03/18/2014 11:18 AM, Zane Bitter wrote: On 18/03/14 12:42, Steven Dake wrote: You should be able to use the HARestarter resource and functionality to do healthchecking of a vm.

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-19 Thread Chris Friesen
On 03/19/2014 08:38 PM, Qiming Teng wrote: I don't think it a good idea to rely on some external monitoring systems to do a VM failure detection. It means additional steps to set up, additional software to upgrade, additional chapter in the Operator's Guide, etc. We are evaluating whether

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-19 Thread Qiming Teng
On Wed, Mar 19, 2014 at 01:04:55PM +, WICKES, ROGER wrote: On 03/18/2014 07:54 AM, Qiming Teng wrote: Hi, Folks, I have been trying to implement a HACluster resource type in Heat. I haven't created a BluePrint for this because I am not sure everything will work as expected. ...

[openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-18 Thread Qiming Teng
Hi, Folks, I have been trying to implement a HACluster resource type in Heat. I haven't created a BluePrint for this because I am not sure everything will work as expected. The basic idea is to extend the OS::Heat::ResourceGroup resource type with inner resource types fixed to be

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-18 Thread Steven Dake
On 03/18/2014 07:54 AM, Qiming Teng wrote: Hi, Folks, I have been trying to implement a HACluster resource type in Heat. I haven't created a BluePrint for this because I am not sure everything will work as expected. The basic idea is to extend the OS::Heat::ResourceGroup resource type

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-18 Thread Zane Bitter
On 18/03/14 12:42, Steven Dake wrote: On 03/18/2014 07:54 AM, Qiming Teng wrote: Hi, Folks, I have been trying to implement a HACluster resource type in Heat. I haven't created a BluePrint for this because I am not sure everything will work as expected. The basic idea is to extend the

Re: [openstack-dev] [Nova][Heat] How to reliably detect VM failures?

2014-03-18 Thread Qiming Teng
On Tue, Mar 18, 2014 at 09:42:18AM -0700, Steven Dake wrote: On 03/18/2014 07:54 AM, Qiming Teng wrote: Hi, Folks, I have been trying to implement a HACluster resource type in Heat. I haven't created a BluePrint for this because I am not sure everything will work as expected. The