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Re: [libvirt] [PATCH 2/2] daemon: Limit default log level to journald to VIR_LOG_INFO

On 08/12/2014 08:34 AM, Peter Krempa wrote:
> Libvirt is really chatty when the DEBUG log level is enabled. When a
> host uses journald we'd enable debug logging to journald when only
> specifying the debug log level. As journald may employ rate throttling
> this would lock up the daemon until it's able to flush all debug
> messages.
> This patch changes the default log level to VIR_LOG_INFO when using the
> default (unconfigured) log output to journald.
> To still allow debug logging to journad the user now has to explicitly


> +            /* By default we don't want to log too much stuff into journald as
> +             * it may employ rate limiting and thus blocking libvirt execution.


> +++ b/daemon/libvirtd.conf
> @@ -309,6 +309,10 @@
>  # Logging level: 4 errors, 3 warnings, 2 information, 1 debug
>  # basically 1 will log everything possible
> +# Note: Journald may employ rate limiting of the messages logged
> +# and thus lock up the libvirt daemon. To use the debug level with
> +# journald you have to specify it explicitly in 'log_outputs' otherwise

s/ otherwise/, otherwise/

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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