On Fri, 09.12.11 15:32, Jan Safranek (jsafr...@redhat.com) wrote:
> +For specific use cases, e.g. when different tree of control groups is needed,
> +libcgroup provides cgconfig service. This service can create arbitrary
> control
> +group hierarchies. In this case, follow these steps:
> +
> +1. Set 'DefaultControllers=' in /etc/systemd/system.conf so systemd does not
> +create control groups for services automatically.
> +
> +2. Prepare /etc/cgconfig.conf and enable cgconfig service. The service will
> +parse /etc/cgconfig.conf file during machine boot and create all control
> +groups which are defined in it. The service automatically sets '+t'
> ("sticky")
> +bit on tasks file as recommended in [2].
> +
> +3. For each service that should start in specific control group, add
> following
> +lines into it's unit file:
> + After=cgconfig.service
> + ControlGroup=<name of the control group(s)>
> +
> +This ensures the service is started only after cgconfig creates necessary
> +hierarchy for it and also tells systemd into which control group should be
> the
> +service started.
Sounds perfect! Thanks for putting this together!
Lennart
--
Lennart Poettering - Red Hat, Inc.
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