diff options
| author | Florian Klink <flokli@flokli.de> | 2020-11-17 21:54:26 +0100 |
|---|---|---|
| committer | Florian Klink <flokli@flokli.de> | 2020-11-19 16:56:46 +0100 |
| commit | d22b3ed4bcd24dcc96fd9f99c75bb568bffe2a8c (patch) | |
| tree | 4019622d6149592c7c771ff05996b84386ce12ea /nixos/doc | |
| parent | e949d758998fafbef608adcf9f54d79a6e7da4c8 (diff) | |
systemd: switch to unified cgroup hierarchy by default
See https://www.redhat.com/sysadmin/fedora-31-control-group-v2 for
details on why this is desirable, and how it impacts containers.
Users that need to keep using the old cgroup hierarchy can re-enable it
by setting `systemd.unifiedCgroupHierarchy` to `false`.
Well-known candidates not supporting that hierarchy, like docker and
hidepid=… will disable it automatically.
Fixes #73800
Diffstat (limited to 'nixos/doc')
| -rw-r--r-- | nixos/doc/manual/release-notes/rl-2103.xml | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/nixos/doc/manual/release-notes/rl-2103.xml b/nixos/doc/manual/release-notes/rl-2103.xml index 5c017c65a253..8aaa9094a7a3 100644 --- a/nixos/doc/manual/release-notes/rl-2103.xml +++ b/nixos/doc/manual/release-notes/rl-2103.xml @@ -264,6 +264,19 @@ <literal>unbound-control</literal> without passing a custom configuration location. </para> </listitem> + <listitem> + <para> + NixOS now defaults to the unified cgroup hierarchy (cgroupsv2). + See the <link xlink:href="https://www.redhat.com/sysadmin/fedora-31-control-group-v2">Fedora Article for 31</link> + for details on why this is desirable, and how it impacts containers. + </para> + <para> + If you want to run containers with a runtime that does not yet support cgroupsv2, + you can switch back to the old behaviour by setting + <xref linkend="opt-systemd.enableUnifiedCgroupHierarchy"/> = <literal>false</literal>; + and rebooting. + </para> + </listitem> </itemizedlist> </section> </section> |