4c02c2d7b3
This change adds a retry_if_busy decorator to the read_sys and write_sys functions in the filesystem module that will retry reads and writes up to 5 times with an linear backoff. This allows nova to tolerate short periods of time where sysfs retruns device busy. If the reties are exausted and offlineing a core fails a warning is log and the failure is ignored. onling a core is always treated as a hard error if retries are exausted. Closes-Bug: #2065927 Change-Id: I2a6a9f243cb403167620405e167a8dd2bbf3fa79 (cherry picked from commit44c1b48b31) (cherry picked from commit1581f6695f) (cherry picked from commit6a475acb48)
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 and OpenStack Ironic.
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: