12 lines
602 B
YAML
12 lines
602 B
YAML
---
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deprecations:
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- |
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The ``[scheduler] driver`` config option has been deprecated. This was
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previously used to switch between different scheduler drivers including
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custom, out-of-tree ones. However, only the ``FilterScheduler`` has been
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supported in-tree since 19.0.0 (Stein) and nova increasingly relies on
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placement for basic functionality, meaning developing and maintaining
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out-of-tree drivers is increasingly difficult. Users who still rely on a
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custom scheduler driver should migrate to the filter scheduler, using
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custom filters and weighters where necessary.
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