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Update 3.9.4.md

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Michael Klishin 2021-11-11 16:16:06 +03:00 committed by GitHub
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release-notes/3.9.4.md
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@ -15,15 +15,6 @@ consistent release schedule.
#### Enhancements
* New Prometheus metrics for alarms:
* `rabbitmq_alarms_file_descriptor_limit` 1|0
* `rabbitmq_alarms_free_disk_space_watermark` 1|0
* `rabbitmq_alarms_memory_used_watermark` 1|0
While some of the alarms have cluster-wide effect, these metrics are node-local.
GitHub issue: [#2653](https://github.com/rabbitmq/rabbitmq-server/pull/2653)
* Nodes will now use four more environment variables, if set: `RABBITMQ_DEFAULT_USER` (overrides `default_user` in `rabbitmq.conf`), `RABBITMQ_DEFAULT_PASS` (overrides `default_pass`), `RABBITMQ_DEFAULT_VHOST` (overrides `default_vhost`) and `RABBITMQ_ERLANG_COOKIE` (sets [shared authentication secret value](https://www.rabbitmq.com/clustering.html#erlang-cookie)).
These variables **are not recommended to be used in production** but can be the only realistic option in some environment, such as service containers, ECS, and so on.
Most users should continue using `rabbitmq.conf` and a securely generated local cookie file.
@ -65,6 +56,21 @@ consistent release schedule.
GitHub issue: [#3249](https://github.com/rabbitmq/rabbitmq-server/issues/3249)
### Prometheus Plugin
#### Enhancements
* New Prometheus metrics for alarms:
* `rabbitmq_alarms_file_descriptor_limit` 1|0
* `rabbitmq_alarms_free_disk_space_watermark` 1|0
* `rabbitmq_alarms_memory_used_watermark` 1|0
While some of the alarms have cluster-wide effect, these metrics are node-local.
GitHub issue: [#2653](https://github.com/rabbitmq/rabbitmq-server/pull/2653)
## Dependency Upgrades
No dependency changes in this release.