7388362f28
Add a new config option that will only check specific properties and allow per-property weights. Change-Id: Iae51558b9eb03da705e0da939cbd459b4d3b51f7
19 lines
1014 B
YAML
19 lines
1014 B
YAML
---
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features:
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- |
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A new `ImagePropertiesWeigher` has been added. It will compare the number
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of image properties of the image being booted for each of the host with how
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many existing instances use them. By default this weigher is enabled but
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with a value of 0.0 for
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`[filter_scheduler]/image_props_weight_multiplier` which
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won't modify the existing scheduling behavior.
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If you want to pack instances having the same image properties on the same
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hosts, modify `image_props_weight_multiplier` to a positive value. If you
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want to spread instances with the same properties around all hosts, then
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please modify `image_props_weight_multiplier` to a negative value.
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Another configuration option
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`[filter_scheduler]/image_props_weight_setting` allows you to define
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fine-grained weights for each of the properties you actually would like to
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weigh (eg. `os_distro`). Please refer to the documentation for more details
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about how to use this configuration option.
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