Thanks you Chen. What I'm finding is the '_report_state' function. Your answer really helps :)
On Wed, Oct 8, 2014 at 11:28 AM, Chen CH Ji <jiche...@cn.ibm.com> wrote: > following are code analysis, only FYI > > not sure fully understand the question, but I think > servicegroup/drivers/db.py might be a good place to look at > a timer function _report_state is called periodically ,when its updated, > the field will be updated > > class TimestampMixin(object): > created_at = Column(DateTime, default=lambda: timeutils.utcnow()) > updated_at = Column(DateTime, onupdate=lambda: timeutils.utcnow()) > > Best Regards! > > Kevin (Chen) Ji 纪 晨 > > Engineer, zVM Development, CSTL > Notes: Chen CH Ji/China/IBM@IBMCN Internet: jiche...@cn.ibm.com > Phone: +86-10-82454158 > Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, > Beijing 100193, PRC > > [image: Inactive hide details for Gareth ---10/08/2014 10:23:59 AM---Hi, > Nova guys I know that 'nova-manage service list' will output ']Gareth > ---10/08/2014 10:23:59 AM---Hi, Nova guys I know that 'nova-manage service > list' will output 'XXX' for compute nodes > > From: Gareth <academicgar...@gmail.com> > To: OpenStack Development Mailing List <openstack-dev@lists.openstack.org> > Date: 10/08/2014 10:23 AM > Subject: [openstack-dev] [nova] How does Nova update time for compute > nodes? > ------------------------------ > > > > Hi, Nova guys > > I know that 'nova-manage service list' will output 'XXX' for compute nodes > is the time between api node and compute node are larger than > service_down_time. At the same time Nova update db cyclically. So my > question is how does Nova update that data? via crontab or something else? > > > -- > Gareth > > *Cloud Computing, OpenStack, Distributed Storage, Fitness, Basketball* > *OpenStack contributor, kun_huang@freenode* > *My promise: if you find any spelling or grammar mistakes in my email from > Mar 1 2013, notify me * > *and I'll donate $1 or ￥1 to an open organization you specify.* > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > -- Gareth *Cloud Computing, OpenStack, Distributed Storage, Fitness, Basketball* *OpenStack contributor, kun_huang@freenode* *My promise: if you find any spelling or grammar mistakes in my email from Mar 1 2013, notify me * *and I'll donate $1 or ￥1 to an open organization you specify.*
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