ironic/releasenotes/notes/futurist-e9c55699f479f97a.yaml

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---
prelude: >
This release features switch to Oslo Futurist library for asynchronous
thread execution and periodic tasks. Main benefit is that periodic tasks
are now executed truly in parallel, and not sequentially in one
green thread.
upgrade:
- Configuration option "workers_pool_size" can no longer be less or equal
to 2. Please set it to greater value (the default is 100) before update.
deprecations:
- Configuration option "periodic_interval" is deprecated.
- Using "driver_periodic_task" decorator is deprecated. Please update your
out-of-tree drivers to use "periodics.periodic" decorator from Futurist
library.
fixes:
- Periodic tasks are no longer executed all in one thread.