Hi All,

I am new to openstack. I have a problem in understanding of Nova-database
update with the resources information.

My understanding after going through the architecture documents and code is
Nova-Database is the one which stores the resource information about the
compute servers. The Nova-Scheduler is responsible to place a VM on a
correct compute node where the resources are available. Nova-compute is
responsible for creating the VMs/Containers etc.

The question here is who actually updates the in real time the resource
information in the Nova-Database by reading the resources information from
the compute servers/nodes?

I have read about agents are responsible for this, but I dint get which
code does that. Can any one please help me in clarifying my doubt and
please guide me for the code  which does that.

Thanks in advance

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