[OpenSIPS-Users] Opensips switch from SQL to NoSQL

[Eric Tamme]

Not all cachedb backends have implementations that allow you to use all 
modules.   The db api exports specific functions that may not be 
implemented for a given cache db module.  You have found an example of 
one where a module requires a db api function implementation, and the 
cachedb module you are using does not implement it.
-Eric

On 07/14/2016 11:31 AM, feroze waris wrote:
> Hi Daniel and Benajmin,
>
> Thank you for reply and sharing link of mongodb basics. Yes there is a 
> performance issue. I want that opensips writes and get information of 
> dialog, location, subscriber etc from cachedb(mongodb). For this task 
> i came across with the module named *db_cachedb *( 
> http://www.opensips.org/html/docs/modules/2.1.x/db_cachedb.html ). *
>
> *
>  According to documentation what this module do is " *The db_cachedb 
> module will expose the same front db api, however it will run on top 
> of a NoSQL back-end, emulating the SQL calls to the back-end specific 
> queries*."
>
> I implemented this module and also created collections in mongodb 
> according to mysql tables list. Now when i start opensips it gives me 
> following error
>
> Jul 14 17:27:45 localhost [23610]: ERROR:core:db_check_api: module 
> db_mongodb does not export db_use_table function
> Jul 14 17:27:45 localhost [23610]: ERROR:uri:mod_init: No database 
> module found
> Jul 14 17:27:45 localhost [23610]: ERROR:core:init_mod: failed to 
> initialize module uri
> Jul 14 17:27:45 localhost [23610]: ERROR:core:main: error while 
> initializing modules
>
> my opensips version is 2.1.3
>
>
> On Wed, Jul 13, 2016 at 6:52 PM, Benjamin Cropley 
> <benjamin.cropley at gmail.com <mailto:benjamin.cropley at gmail.com>> wrote:
>
>     You don't have to explicitly define a schema when you insert a
>     document into MongoDB.
>
>     For example, you could create a MongoDB database, and then
>     immediately do an insert into an insert into a collection without
>     even creating it or a 'schema'.
>
>     Maybe you should do some reading about MongoDB and NoSQL in
>     general, as a basic understanding should have answered that
>     question :)
>
>     https://docs.mongodb.com/manual/faq/fundamentals/
>
>     On Wed, Jul 13, 2016 at 2:44 PM, feroze waris
>     <feroze.chaudhry at gmail.com <mailto:feroze.chaudhry at gmail.com>> wrote:
>
>         Hi,
>
>         Can anyone tell me how to move opensips DB from SQL to NoSQL.
>         I have seen a module name db_cachedb which has a support for
>         mongodb but how to move mysql schema to mongodb schema.
>
>         Regards
>         Feroze
>
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>
>
>     -- 
>     All the best,
>     Ben Cropley
>     07539 366 905
>
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