[OpenSIPS-Users] [RFC] Default value of db_url in OpenSIPS

Henk Hesselink opensips-users at voipro.nl
Fri Apr 15 00:03:24 CEST 2011

Definitely 1 vote for making the URL explicit.  Principle of least
surprise and all that.

I'd also like to vote for keeping the rw/ro split.  We don't use it for
security but for performance: modules that need to write to the database
get a rw URL pointing at the real DB, the rest gets a ro URL pointing to
a caching copy.



On 4/14/11 4:35 PM, Bogdan-Andrei Iancu wrote:
> On 04/14/2011 05:25 PM, Ovidiu Sas wrote:
>> On Thu, Apr 14, 2011 at 10:18 AM, Bogdan-Andrei Iancu
>> <bogdan at opensips.org> wrote:
>>> On 04/14/2011 03:15 PM, Saúl Ibarra Corretgé wrote:
>>>> On 14/4/11 1:02 PM, Bogdan-Andrei Iancu wrote:
>>>>> Hi all,
>>>>> Following some discussions on the value of db_url, we end up with the
>>>>> idea of chancing the way of definition the db_url in opensips.
>>>>> The problem with the current approach (having builtin - hidden-
>>>>> default
>>>>> values) is confusing as, if you do no explicitly set a db_url, the
>>>>> modules will try do connect to the default db_url, without you even
>>>>> knowing that.
>>>>> So the idea is to remove the builtin default value and to have a new
>>>>> global parameter in opensips cfg to define the default value for
>>>>> db_urls.
>>>>> This will allow:
>>>>> - to have single default db_url for simple default scripts (as we
>>>>> have now)
>>>>> - to see (no mote hidden) the default value for db_url in your cfg
>>>>> - to change the default db_url without re-compilling
>>>>> - still be able to individually change the db_urls for each module...
>>>>> Already there are three +votes for this, but I would like to see other
>>>>> opinions on that....pro or against :)
>>>> +1
>>>> Would this global db_url be overridable with the per-module one, or are
>>>> they mutually exclusive?
>>> per module (if defined in script) will override the global one (for that
>>> module).
>> And if there's no per-module defined and no global defined, then the
>> init will fail with proper error message, right?
> If the module really requires a db, then it will fail to start.
>> Also, we may want to have two global urls:
>> - one r/w for modules that require writing to the db;
>> - one r/o for modules that require only reading from db.
> Does it make sense to keep this separation between RW and RO ?
> personally I never used it...somehow is non-sense (as security) for a
> single application to connect in the same time, to the same DB with RW
> and RO (for different modules).....my 2 cents..
> Regards,
> Bogdan

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