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Extending OpenStack by Omar Khedher

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Filtering the compute workload

Nova service depends on its scheduler to determine where to run a requested virtual machine. The decision as to which hypervisor machine an instance should be placed is made based on filters. The nova-scheduler service can use a variety of filters that can be pinpointed in the /etc/nova/nova.conf file. Scheduling in OpenStack is a very critical service that must be configured based on a well-documented, available hardware list and inventories in the overall infrastructure. By default, OpenStack supports the following filters:

  • ComputeFilter: This returns a set of hosts with matched capabilities, and it is fully operational. It can be configured as follows:
    1. Edit the /etc/nova/nova.conf file by adjusting the ...

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