ceilometer/releasenotes/notes/single-thread-pipelines-f9e...

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YAML

---
upgrade:
- Batching is enabled by default now when coordinated workers are enabled.
Depending on load, it is recommended to scale out the number of
`pipeline_processing_queues` to improve distribution. `batch_size` should
also be configured accordingly.
fixes:
- Fix to improve handling messages in environments heavily backed up.
Previously, notification handlers greedily grabbed messages from queues
which could cause ordering issues. A fix was applied to sequentially
process messages in a single thread to prevent ordering issues.