[sr-dev] dns_cache_rec_pref not supported in the config file

[smititelu]

> I haven't implemented the dns cache, typically most of the attributes to
> configure it are exposed as global parameters. But maybe some of them
> can be changed only via RPC. There is a module cfg_db which was supposed
> to allow loading values from database as well, but somehow the developer
> (which was in the SER project) left and is rather undocumented.
>
> The parameters available in so called cfg reload framework can be set
> via kamcmd, like:
>
> kamcmd cfg.set_now_int core cache_rec_pref 1
I've tried "kamcmd cfg.set_now_int core dns_cache_rec_pref 1". The cmd 
works and the value is changed accordingly. I also tried with other 
params like dns_cache_max_ttl and it works.

> On the other hand, can you try adding in config file:
>
> core.cache_rec_pref=1
>
> at the beginning, in the part with global parameters?
I get a config error when setting the core.(dns_)cache_rec_pref=1 in 
config file:

"Apr 20 06:48:03 test-reg1-bs kamailio_3: ERROR: <core> [cfg/cfg.c:162]: 
cfg_declare(): ERROR: register_cfg_def(): configuration group has been 
already declared: core
Apr 20 06:48:03 test-reg1-bs kamailio_3: ERROR: <core> [cfg/cfg.c:188]: 
cfg_declare(): ERROR: register_cfg_def(): Failed to register the config 
group: core
Apr 20 06:48:03 test-reg1-bs kamailio_3: : <core> [main.c:2407]: main(): 
could not declare the core configuration"

If I try "cfg.cache_rec_pref=1" I get no errors but no effect.

> If you have a patch, send it here or make a pull request on github. It
> will be accepted.
I have attached to this mail, the proposed patch which allows 
dns_cache_rec_pref to be set in config file. (i.e. dns_cache_rec_pref=1)

Kind Regards,
Stefan
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