[asterisk-dev] AstDB mySQL implementation

Olle E. Johansson oej at edvina.net
Thu Oct 26 08:30:43 CDT 2017


> On 26 Oct 2017, at 15:25, Nir Simionovich <nir.simionovich at gmail.com> wrote:
> 
> I suspect the original code didn't change the overall mechanism dramatically, it's mainly a new implementation.
> This thing is this - replacing the implementation seems straight forward enough, making it configurable, seems
> like a pain in the butt.
Look for the “appleraisin” branch if you want to see code :-)

/O
> 
> 
> 
> On Thu, Oct 26, 2017 at 4:23 PM Olle E. Johansson <oej at edvina.net <mailto:oej at edvina.net>> wrote:
>> On 26 Oct 2017, at 15:20, Nir Simionovich <nir.simionovich at gmail.com <mailto:nir.simionovich at gmail.com>> wrote:
>> 
>> Just looked into the code, this is not a simple task to put a new backend for astdb. The code isn't even designed
>> for something like that. Judging from what I can tell, and tell me if I'm wrong - turning this into a configurable thing
>> would be more or less an open-heart surgery.
> 
> My patch wasn’t that bad, but it was before sqlite.
> 
> /O
> 
>> 
>> 
>> 
>> On Thu, Oct 26, 2017 at 4:16 PM Olle E. Johansson <oej at edvina.net <mailto:oej at edvina.net>> wrote:
>> Somewhere in Asterisk space, there’s an old patch where I added ASTDB over realtime, meaning you can use 
>> any realtime storage. If I remember correctly there was a bit of chicken-and-egg problem with some astdb
>> calls happening before realtime got launched, but otherwise it worked just fine in production for a long time.
>> 
>> /O
>> 
>>> On 26 Oct 2017, at 15:13, Nir Simionovich <nir.simionovich at gmail.com <mailto:nir.simionovich at gmail.com>> wrote:
>>> 
>>> I'd like to +1 on that idea.
>>> 
>>> While I'm somewhat reluctant to using mySQL as the base of such a change, as mySQL is an overkill for AstDB,
>>> having a proper AstDB configurable backend is an interesting thing. Personally speaking, I would actually prefer
>>> something like Memcache or preferably Redis. Both are similar in function and usability to AstDB, both are fairly
>>> scalable (Redis specifically) and both are fairly simplistic in nature. 
>>> 
>>> I do admit that this got me intrigued... 
>>> 
>>> 
>>> 
>>> On Tue, Sep 26, 2017 at 12:45 AM Matt Fredrickson <creslin at digium.com <mailto:creslin at digium.com>> wrote:
>>> On Fri, Sep 22, 2017 at 12:12 PM, Ryan Wagoner <rswagoner at gmail.com <mailto:rswagoner at gmail.com>> wrote:
>>> I've been scaling out FreePBX horizontally with Kamailio and custom FreePBX modules mainly to handle call center outbound dialing (around 20k calls per day). One of the issues I ran into was FreePBX uses the AstDB extensively and will write changes to it from the dialplan or the FreePBX user control panel.
>>> 
>>> To overcome this I either needed to scrap FreePBX and build a new GUI using Asterisk realtime, heavily modify FreePBX (not an option), or rewrite AstDB to use a database like mySQL. I choose the last option and have had the code in production for just over a month. I'm backing it with a two node MariaDB Galera cluster with HAProxy providing failover for the client DB connections.
>>> 
>>> I realize that SQLite was chosen for AstDB for performance reasons. However mySQL seems to perform just fine in the above scenario. Right now I have a db.c file that just has the mySQL code. Does anybody else have any interest in using mySQL for the AstDB backend? I'm debating if it would make sense to have the option to select your AstDB backend.
>>> 
>>> Hey Ryan,
>>> 
>>> First off, thanks for letting us know about the fun project you embarked upon.  I think Josh already answered some of your questions, but with regards to the work you did - I believe that in the past there have been others who have wanted an ODBC AstDB driver as well.  If your code can be made configurable, it may be a good contribution.
>>> 
>>> Anyways, hope you are doing well, and perhaps we'll see your code up on gerrit at some time in the future. :-)
>>> 
>>> -- 
>>> Matthew Fredrickson
>>> Digium, Inc. | Engineering Manager
>>> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
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>>>   Nir Simionovich
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>>   Nir Simionovich
>>   GreenfieldTech
>>   (schedule) http://nirsimionovich.appointy.com/ <http://nirsimionovich.appointy.com/>
>>   (w) http://www.greenfieldtech.net <http://www.greenfieldtech.net/> 
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> Kind Regards,
>   Nir Simionovich
>   GreenfieldTech
>   (schedule) http://nirsimionovich.appointy.com/ <http://nirsimionovich.appointy.com/>
>   (w) http://www.greenfieldtech.net <http://www.greenfieldtech.net/> 
>   (p) +972-73-2557799        (MSN): nirs at greenfieldtech.net <mailto:nirs at greenfieldtech.net>
>   (m) +972-54-6982826      (GTALK): nir.simionovich at gmail.com <mailto:nir.simionovich at gmail.com>
>   (f) +972-73-2557202      (SKYPE): greenfieldtech.nir
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