ba43f766b8
Add the releasenote for the general purpose decision engine threadpool. Including config parameters and how contributors can find relevant documentation. Implements: blueprint general-purpose-decision-engine-threadpool Change-Id: I3560069b4e34f13305950559a0f05f7921f7867e
21 lines
1.0 KiB
YAML
21 lines
1.0 KiB
YAML
---
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prelude: >
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Many operations in the decision engine will block on I/O. Such I/O
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operations can stall the execution of a sequential application
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significantly. To reduce the potential bottleneck of many operations
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the general purpose decision engine threadpool is introduced.
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features:
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A new threadpool for the decision engine that contributors can use to
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improve the performance of many operations, primarily I/O bound onces.
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The amount of workers used by the decision engine threadpool can be
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configured to scale according to the available infrastructure using
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the `watcher_decision_engine.max_general_workers` config option.
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Documentation for contributors to effectively use this threadpool is
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available online:
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https://docs.openstack.org/watcher/latest/contributor/contributor/concurrency.rst
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The building of the compute (Nova) data model will be done using the
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decision engine threadpool, thereby, significantly reducing the total
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time required to build it.
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