0d9622f581
get_compute_nodes_by_host_or_node uses the scatter_gather_cells function but was not handling the case that a failure result was returned, which could be the called function raising some exception or the cell timing out. This causes issues when the caller of get_compute_nodes_by_host_or_node expects to get a ComputeNodeList back and can do something like len(nodes) on it which fails when the result is not iterable. To be clear, if a cell is down there are going to be problems which likely result in a NoValidHost error during scheduling, but this avoids an ugly TypeError traceback in the scheduler logs. Change-Id: Ia54b5adf0a125ae1f9b86887a07dd1d79821dd54 Closes-Bug: #1857139
OpenStack Nova
OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of compute technologies, including: libvirt (KVM, Xen, LXC and more), Hyper-V, VMware, XenServer, OpenStack Ironic and PowerVM.
Use the following resources to learn more.
API
To learn how to use Nova's API, consult the documentation available online at:
For more information on OpenStack APIs, SDKs and CLIs in general, refer to:
Operators
To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:
In the unfortunate event that bugs are discovered, they should be reported to the appropriate bug tracker. If you obtained the software from a 3rd party operating system vendor, it is often wise to use their own bug tracker for reporting problems. In all other cases use the master OpenStack bug tracker, available at:
Developers
For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst.
Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests.
Further developer focused documentation is available at:
Other Information
During each Summit and Project Team Gathering, we agree on what the whole community wants to focus on for the upcoming release. The plans for nova can be found at: