February 2018
Intermediate to advanced
300 pages
6h 17m
English
Content preview from Extending OpenStack
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Weighing in action
The next wizard will go through some simple steps to enable weight-scheduling in Nova:
- Edit the nova.conf file by editing the directive compute_available_monitors:
... compute_available_monitors = nova.compute.monitors.all_monitors ...
This will activate the Nova monitors class to start collecting monitoring metrics for consumed resources per compute host.
- In the same file, we can enable CPU monitoring:
... compute_monitors ComputeDriverCPUMonitor ...
- Enable the weighting for RAM and metrics:
... scheduler_weight_classes nova.scheduler.weights.all_weighers nova.scheduler.weights.ram ...
- As was discussed in the previous paragraph, stacking virtual machines can be preferred in our setup. We can instruct Nova to create ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.