[Kea-users] Configuring LFC logger ?

Chaigneau, Nicolas nicolas.chaigneau at capgemini.com
Tue Apr 12 15:57:08 UTC 2016


Hello Marcin,


Thanks for your reply, which confirms what I suspected.

I agree that this is not a major issue, and it can wait for a later release.

Should I open a ticket for this ?



Regards,
Nicolas.


> Hello Nicolas,
> 
> Sorry for the delayed response to your post.
> 
> No, there is currently no way to configure the logging for LFC from the Kea configuration file. The reason being that LFC is running in a separate process and this process has no built-in capability to read/understand Kea configuration file. At the time of writing LFC we envisaged the need for a dedicated LFC logger, but we did not implement it due to time constraints. There is a command line parameter exposed by the kea-lfc application which receives a name/location of the Kea configuration file, but it utterly ignores this parameter.
> 
> I think it is a reasonable request to finally implement configuration parsing in the kea-lfc app, but this is not in scope for the upcoming release, so we can probably think about it for the 1.2 release. In a mean time we'd need to stick with syslog.
> 
> Marcin
> 
> On 31.03.2016 15:28, Chaigneau, Nicolas wrote:
> > Hello Kea friends,
> > 
> > 
> > I have a question about LFC and logging:
> > 
> > By default, the LFC process logs through syslog with facility "local0".
> > I'm trying to make it log into a file. I've added the following in kea configuration file:
> > 
> > 
> >                 {
> >                         "name": "DhcpLFC",
> >                         "output_options": [
> >                                 {
> >                                         "destination": "file",
> >                                         "output": "/path-to-logs/kea1-open-lfc.log"
> >                                 }
> >                         ],
> >                         "severity": "INFO"
> >                 },
> > 
> > 
> > 
> > 
> > But this does not work.
> > The "name" (DhcpLFC) I've retrieved from the code, but it is probably wrong, since it is not listed in the available defined loggers (kea guide 17.1.1.1 "defined loggers").
> > 
> > I'm not really sure this is feasible, since kea guide also states the following (about lfc command line process):
> > 
> > "The -c argument specifies the configuration file. This is required, but not currently used by the process."
> > 
> > 
> > 
> > So... is there a way (besides configuring syslog itself) to configure the LFC logs ?
> > 
> > 
> > 
> > 
> > Thanks for your help.

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