April 2017
Intermediate to advanced
470 pages
11h 12m
English
Content preview from Mastering OpenStack - Second Edition
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The nova-scheduler service
Several workflow scheduling studies and implementations have been recently conducted in cloud computing, generally in order to define the best placement of a resource provisioning.
In our case, we will decide which compute node will host the virtual machine. It's important to note that there are bunches of scheduling algorithms in OpenStack.
Nova-scheduler may also influence the performance of the virtual machines. Therefore, OpenStack supports a set of filters that implement a resource availability check on the compute nodes and then runs the filtered list of compute nodes through a weighting mechanism to arrive at the best node to start a virtual machine. The scheduler gives you the choice to configure its options ...
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