[asterisk-users] CDR Design

[Freddi Hansen]

> On Dec 1, 2008, at 9:07 AM, JD wrote:
>
>> Steve Murphy wrote:
>>>
>>> Freddi--
>>>
>>> Very interesting. Brian Degenhardt had some code we just gave some
>>> thought
>>> to, wherein we determine if the last channel involved in a linkedID set
>>> has been closed. If so, then the entire set is finished. We can use 
>>> this
>>> facility to get you a closing attribute, that could be added to the 
>>> last
>>> CDR emmitted for that set; OR, we could just emit another CDR with type
>>> CLOSE or FINAL or something, that signals the end of the chain.
>>>
>>> murf
>>>
>> Just thinking out loud: how about a feature wherein, after the FINAL is
>> sent, asterisk can
>>  1. create a temp text file with just those entries, and
>>  2. launch a user-made script.
>>
>> cdr_manager.conf
>>  [general]
>>  legparsecmd=/usr/local/bin/my_parser.pl
>>
>> wherein the linkedID is passed as the first parameter and the text file
>> name&path as the second
>>
>> Ignore this suggestion if it horribly complicates things.
>
> Hmm.. While I normally like having this kind of "instant 
> notification", I could see this as a very big problem for larger 
> installations.  Most OS's are not so great at launching new tasks, and 
> on a heavily loaded system that could easily be a number of tasks 
> launched every second, each doing a lot of database queries.  Perhaps 
> a different approach would be to have a field that can be set to show 
> that the record(s) have been parsed into whatever standard CDR format 
> you want.  This may or may not make more sense as a separate table 
> with just a list of linkedid's that have been parsed.
>
> Daniel
I think that e.g. a socket would be preferable.  You do not have the 
load of launching new a task for each cdr and the process listening on 
the socket would normally run at lower priority than Astrisk itself. If 
gives the freedom to send unprocessed 'leg-information' to a cdr backend 
process on another server if  heavy loaded enviroment or just process it 
local if it's a small installation.
To me it looks new cdr spec from murf would be a big step forward for 
Asterisk.

Freddi