Re: [openstack-dev] [api][nova] Openstack HTTP error codes

2015-02-02 Thread Qin Zhao
Agree with Sean. A short error name in response body would be better for applications who consume OpenStack. To my understand, the X-OpenStack-Error-Help-URI proposed by jpipes will be a uri to error resolution method. Usually, a consumer application needn't to load its content. On Feb 3, 2015 9:28

Re: [openstack-dev] [Nova] nova-compute deadlock

2014-08-04 Thread Qin Zhao
Dear stackers, FYI. Eventually I report this problem to libguestfs. A workaround has been included into libguestfs code to fix it. Thanks for your supporting! https://bugzilla.redhat.com/show_bug.cgi?id=1123007 On Sat, Jun 7, 2014 at 3:27 AM, Qin Zhao wrote: > Yuriy, > > And I th

Re: [openstack-dev] [Nova] nova-compute deadlock

2014-06-06 Thread Qin Zhao
Yuriy, And I think if we use proxy object of multiprocessing, the green thread will not switch during we call libguestfs. Is that correct? On Fri, Jun 6, 2014 at 2:44 AM, Qin Zhao wrote: > Hi Yuriy, > > I read multiprocessing source code just now. Now I feel it may not solve >

Re: [openstack-dev] [Nova] nova-compute deadlock

2014-06-05 Thread Qin Zhao
ethod to calls to this new Manager. > > > On Thu, Jun 5, 2014 at 7:21 PM, Qin Zhao wrote: > >> Hi Yuriy, >> >> Thanks for reading my bug! You are right. Python 3.3 or 3.4 should not >> have this issue, since they have can secure the file descriptor. Before >

Re: [openstack-dev] [Nova] nova-compute deadlock

2014-06-05 Thread Qin Zhao
; *http://bugs.python.org/issue7213 >> <http://bugs.python.org/issue7213>* >> >> >> On Wed, Jun 4, 2014 at 10:41 PM, Qin Zhao wrote: >> >>> Hi Zhu Zhu, >>> >>> Thank you for reading my diagram! I need to clarify that this problem >>&

Re: [openstack-dev] [Nova] nova-compute deadlock

2014-06-05 Thread Qin Zhao
rg/issue7213>* > > > On Wed, Jun 4, 2014 at 10:41 PM, Qin Zhao wrote: > >> Hi Zhu Zhu, >> >> Thank you for reading my diagram! I need to clarify that this problem >> does not occur during data injection. Before creating the ISO, the driver >> code will

Re: [openstack-dev] [nova] Proposal: Move CPU and memory allocation ratio out of scheduler

2014-06-04 Thread Qin Zhao
hope that. 2) Resource tracker of each compute node can do the calculation according to its settings (or its calculation method, if it is pluggable), so that resource usage behavior can be specified to meet the unique requirement. -- Qin Zhao ___ Op

Re: [openstack-dev] [Nova] nova-compute deadlock

2014-06-04 Thread Qin Zhao
very much. So I do not think that is an acceptable solution. On Wed, Jun 4, 2014 at 12:00 PM, Zhu Zhu wrote: > Hi Qin Zhao, > > Thanks for raising this issue and analysis. According to the issue > description and happen scenario( > https://docs.google

[openstack-dev] [Nova] nova-compute deadlock

2014-05-30 Thread Qin Zhao
and eventlet. The situation is a little complicated. Is there any expert who can help me to look for a solution? I will appreciate for your help! -- Qin Zhao ___ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi

Re: [openstack-dev] [nova] a question about instance snapshot

2014-03-13 Thread Qin Zhao
ons to > determine what commands > > to issue to have them sync their contents to disk. If you are unsure how > to do this, > > the safest approach is to simply stop these running services normally. > > " > > This just pushes all the respon

Re: [openstack-dev] [nova] a question about instance snapshot

2014-03-11 Thread Qin Zhao
approach is to simply stop these running services normally. > > " > > This just pushes all the responsibility to guarantee the consistency of > the instance to the end user. > > It's absolutely not convenient and I doubt whether it's appropriate. > > Hi Ricky, > > I gue

Re: [openstack-dev] [nova] a question about instance snapshot

2014-03-10 Thread Qin Zhao
oes it > negatively impact the service of compute to other tenants/users and will > not negatively impact the scaling factor of Nova either. > > I'm just not as optimistic as you are that once legacy IT folks have > their old tools, they will consider changing their habits. ;) > > Best, > -jay > > > ___ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > -- Qin Zhao ___ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-07 Thread Qin Zhao
start each application again. Every thing is there. User can continue his work very easily. If the user spawn and boot a new VM, he will need to take a lot of time to resume his work. Does that make sense? On Fri, Mar 7, 2014 at 2:20 PM, Joe Gordon wrote: > On Wed, Mar 5, 2014 at 11:45 AM, Qi

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-05 Thread Qin Zhao
u, Mar 6, 2014 at 1:33 AM, Joe Gordon wrote: > On Wed, Mar 5, 2014 at 8:59 AM, Qin Zhao wrote: > > Hi Joe, > > If we assume the user is willing to create a new instance, the workflow > you > > are saying is exactly correct. However, what I am assuming is that the > user

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-05 Thread Qin Zhao
PM, Qin Zhao wrote: > > Hi Joe, my meaning is that cloud users may not hope to create new > instances > > or new images, because those actions may require additional approval and > > additional charging. Or, due to instance/image quota limits, they can > not do > > that

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-04 Thread Qin Zhao
sting instance will be preferred sometimes. Creating a new instance will be another story. On Wed, Mar 5, 2014 at 3:20 AM, Joe Gordon wrote: > On Tue, Mar 4, 2014 at 1:06 AM, Qin Zhao wrote: > > I think the current snapshot implementation can be a solution sometimes, > but > &g

Re: [openstack-dev] [nova][cinder] non-persistent storage(after stopping VM, data will be rollback automatically), do you think we shoud introduce this feature?

2014-03-04 Thread Qin Zhao
t; >> > ___ > >> > OpenStack-dev mailing list > >> > OpenStack-dev@lists.openstack.org > >> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >> > >>

Re: [openstack-dev] [Nova][VMWare] VMware VM snapshot

2014-02-26 Thread Qin Zhao
It may be something worthwhile discussing at the up > and coming summit. > Thanks > Gary > > From: Qin Zhao > Reply-To: "OpenStack Development Mailing List (not for usage questions)" < > openstack-dev@lists.openstack.org> > Date: Tuesday, February 25, 2014 2:05

Re: [openstack-dev] [Nova][VMWare] VMware VM snapshot

2014-02-25 Thread Qin Zhao
am not quite sure if we can model it in Nova, and let the user to create snapshot chain via Nova api. Has it been discussed in design session or mail group? Anybody know that? On Tue, Feb 25, 2014 at 6:40 PM, John Garbutt wrote: > On 25 February 2014 09:27, Qin Zhao wrote: > > Hi, > &

[openstack-dev] [Nova][VMWare] VMware VM snapshot

2014-02-25 Thread Qin Zhao
Hi, One simple question about VCenter driver. I feel the VM snapshot function of VCenter is very useful and is loved by VCenter users. Does anybody think about to let VCenter driver support it? -- Qin Zhao ___ OpenStack-dev mailing list OpenStack-dev

Re: [openstack-dev] [cinder] weekly meeting

2013-12-16 Thread Qin Zhao
two anyway (between the lunch hour in your TZ and > the fact that it just moves the problem of being at midnight to the > folks in US Eastern TZ). Also, I think if there is interest that a > better solution might be to implement something like the Ceilometer > team does and alternate the time each week. > > John > > ___ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > -- Qin Zhao ___ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev