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| author | Michael Klishin <michael@clojurewerkz.org> | 2022-10-18 19:55:35 +0400 |
|---|---|---|
| committer | Michael Klishin <michael@clojurewerkz.org> | 2022-10-18 19:55:35 +0400 |
| commit | a6883b07f13064dea6962b41ab6418ae61b05029 (patch) | |
| tree | cf476d0334f7645d8544b3bc1799cf79d46129a1 | |
| parent | 0b5f16f47e0193d8d7a99c61dcb1a9c5743c106c (diff) | |
| download | rabbitmq-server-git-a6883b07f13064dea6962b41ab6418ae61b05029.tar.gz | |
Correct a copy-and-paste artifact in 3.9.24 release notes
| -rw-r--r-- | release-notes/3.9.24.md | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/release-notes/3.9.24.md b/release-notes/3.9.24.md index 0720ecac4a..2bf6be82f7 100644 --- a/release-notes/3.9.24.md +++ b/release-notes/3.9.24.md @@ -14,35 +14,11 @@ Starting with this release, RabbitMQ requires Erlang 24.2 or later versions. Nod Erlang 25 as our new baseline means much improved performance on ARM64 architectures, [profiling with flame graphs](https://blog.rabbitmq.com/posts/2022/05/flame-graphs/) across all architectures, and the most recent TLS 1.3 implementation available to all RabbitMQ 3.11 users. -### Open File Handle Limit is Capped by Default on Linux, *BSD, macOS - -Nodes now default to 65536 concurrent client connections instead of using the effective kernel open file handle limit. -Users who want to override this default, that is, have nodes that should support more concurrent connections and open files, -now have to perform an additional configuration step: - - * Pick a new limit value they would like to use, for instance, 100K - * Set the maximum open file handle limit (for example, via `systemd` or similar tooling) for the OS user used by RabbitMQ to 100K - * Set the [`ERL_MAX_PORTS` environment variable](https://www.rabbitmq.com/configure.html#customise-environment) to 100K - -This change was introduced because of a change in several Linux distributions: they now use a default open file handle limit so high, -they cause a significant (say, 1.5 GiB) memory preallocated the Erlang runtime. - -For example, [RHEL 9 and CentOS Stream 9](https://access.redhat.com/solutions/1479623) are examples of such distributions. -The new default [comes from modern systemd](https://github.com/systemd/systemd/commit/a8b627aaed409a15260c25988970c795bf963812). - -See [rabbitmq/rabbitmq-server#5684](https://github.com/rabbitmq/rabbitmq-server/pull/5684) and [docker-library/rabbitmq#545](https://github.com/docker-library/rabbitmq/issues/545#issuecomment-1224977154) -for details. - - ## Changes Worth Mentioning Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.9.x/release-notes). -## Changes Worth Mentioning - -Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.10.x/release-notes). - ### Core Server #### Bug Fixes |