November 2019
Intermediate to advanced
322 pages
7h 3m
English
Content preview from The DevOps 2.5 Toolkit
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The rules governing nodes scale-down
Cluster Autoscaler iterates every 10 seconds (configurable through the --scan-interval flag). If the conditions for scaling up are not met, it checks whether there are unneeded nodes.
It will consider a node eligible for removal when all of the following conditions are met.
- The sum of CPU and memory requests of all Pods running on a node is less than 50% of the node's allocatable resources (configurable through the --scale-down-utilization-threshold flag).
- All Pods running on the node can be moved to other nodes. The exceptions are those that run on all the nodes like those created through DaemonSets.
Whether a Pod might not be eligible for rescheduling to a different node when one of the following conditions ...
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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.
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