[sr-dev] Problem load db_perlvdb.so module
Daniel-Constantin Mierla
miconda at gmail.com
Mon May 7 22:18:17 CEST 2018
Joining the development efforts and taking over the maintenance of
db_perlvdb is more than welcome and appreciated!
As for this specific case, do you need to fetch data from Elastic that
has to be used inside Kamailio (e.g., passwords for authentication), or
just push data from Kamailio to Elastic stack? Maybe giving some
specific example of what you need to pass from kamailio To elastic and
the other way around would help us provide better hints about what can
be used.
Cheers,
Daniel
On 05.05.18 09:54, M S wrote:
> Thank you very much for you help.
>
> Actually I need to support Elastic Search Engine (ESE) for a large
> data mining project integrated with Kamailio. The easiest way i
> thought to achieve that was to use Perl VDB or else i have to write up
> ESE module for kamailio myself.
>
> I am going to test the changes you did to PERL VDB module and will fix
> up any minor issues to make it working again. Kindly do not remove it
> from kamailio repo. I am not expert in Kamailio APIs but have good
> coding experience with C / C++, so I am willing to provide maintenance
> and bug fixes for the module with your help on API side if needed.
>
> Also, the new DB API for Kamailio, is there any documentation related
> to it available online. I want to study it and may be add later on a
> separate kamailio module exclusively for ESE for better performance
> and features specific to ESE.
>
> Thank you.
>
>
>
> On Sat, May 5, 2018 at 9:27 AM, Daniel-Constantin Mierla
> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>
> Hello,
>
> quite a surprise that someone is trying to use this module, I was
> considering to move it to obsolete repo, because nobody used it
> for so long and no developer updated it over the time.
>
> The module was still compiling due to some casts, but the DB API
> was changed in the past and this module was left behind.
>
> I did the update of the API (still some warnings that needs to be
> taken care), so you can try now with master branch. Maybe it goes
> on pretty well.
>
> Otherwise I do not have to test or maintain the module, if you
> want to use it, you have to spend some time with it. I can help
> fixing bugs when they are obvious in the C code (like API changes)
> or a proper report is filled, but that's all I can do.
>
> Cheers,
> Daniel
>
>
> On 04.05.18 23:37, M S wrote:
>> Hi,
>>
>> Seems there are some serious problems with db_perlvdb. It gives
>> segmentation fault as soon as i set it as db url for any module
>> e.g. acc, sip_trace, msilo and so on.
>>
>>
>> Here is back-trace of core dump,
>>
>> --
>> #0 0xb57653dd in parseurl (url=0xaf41ba5c
>> "\340\352\245\266\062") at perlvdbfunc.c:60
>> cn = 0x1 <Address 0x1 out of bounds>
>> #1 0xb5765af6 in perlvdb_db_init (url=0xaf41ba5c
>> "\340\352\245\266\062") at perlvdbfunc.c:123
>> res = 0x5
>> cn = 0xaf539cdb "\270"
>> obj = 0x0
>> consize = 32
>> __FUNCTION__ = "perlvdb_db_init"
>> #2 0xaf3f81c2 in mod_init () at msilo.c:335
>> avp_spec = {type = PVT_AVP, getf = 0xb5f86c50
>> <pv_get_avp>, setf = 0xb5f8a8a2 <pv_set_avp>, pvp = {pvn = {type
>> = 0, nfree = 0, u = {
>> isname = {type = 1, name = {n = -1230637607, s =
>> {s = 0xb6a5f5d9 "msilo_extra_hdrs)", len = 16}, re = 0xb6a5f5d9}},
>> dname = 0x1}}, pvi = {type = 0, u = {ival = 0,
>> dval = 0x0}}}, trans = 0x0}
>> __FUNCTION__ = "mod_init"
>> #3 0x081e6b7c in init_mod (m=0xb6a4d9b0) at core/sr_module.c:972
>> __FUNCTION__ = "init_mod"
>> #4 0x081e6e82 in init_modules () at core/sr_module.c:1001
>> t = 0x544c1e2c
>> i = -1
>> __FUNCTION__ = "init_modules"
>> --
>>
>>
>> Thank you.
>>
>>
>>
>> On Fri, May 4, 2018 at 7:29 PM, M S <shaheryarkh at gmail.com
>> <mailto:shaheryarkh at gmail.com>> wrote:
>>
>> Hi,
>>
>> I am trying to load db_perlvdb.so module using latest
>> Kamailio branch v5.0.6 with git revision
>> 49bd81ad7856dac9b2efd53597fb1c182de7440b on Debian Wheezy
>> 32bit. The compilation and installation went successful
>> however the module gives following error.
>>
>> --
>> May 4 19:03:59 webrtc[8895]: INFO: app_perl
>> [app_perl_mod.c:351]: mod_init(): perl interpreter has been
>> initialized (1525453439.237584 => 1525453439.454432)
>> May 4 19:03:59 webrtc[8895]: CRITICAL: db_perlvdb
>> [db_perlvdb.c:79]: mod_init(): perl module not loaded. Exiting.
>> May 4 19:03:59 webrtc[8895]: ERROR: <core>
>> [core/sr_module.c:970]: init_mod(): Error while initializing
>> module db_perlvdb
>> (/usr/local/adx-webrtc/lib/kamailio/modules/db_perlvdb.so)
>> --
>>
>>
>> I tried to find module perl.so in modules folder of kamailio
>> installation but there is none. Then i looked through the
>> source code but no success.
>>
>> After some googling, i found following link which states that
>> perl.so was remained to app_perl.so since v4.x.
>>
>> I have created a small patch for db_perlvdb.c which corrects
>> this error.
>>
>>
>> --
>> diff --git a/src/modules/db_perlvdb/db_perlvdb.c
>> b/src/modules/db_perlvdb/db_perlvdb.c
>> index 7a2b63e..266ece2 100644
>> --- a/src/modules/db_perlvdb/db_perlvdb.c
>> +++ b/src/modules/db_perlvdb/db_perlvdb.c
>> @@ -75,8 +75,8 @@ struct module_exports exports = {
>>
>> static int mod_init(void)
>> {
>> - if (!module_loaded("perl")) {
>> - LM_CRIT("perl module not loaded. Exiting.\n");
>> + if (!module_loaded("app_perl")) {
>> + LM_CRIT("app_perl module not loaded. Exiting.\n");
>> return -1;
>> }
>> --
>>
>>
>> Kindly update Kamailio master and branch trunks.
>>
>>
>> Thank you.
>>
>>
>>
>>
>>
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>
> --
> Daniel-Constantin Mierla
> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
> Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com <http://www.kamailioworld.com>
>
>
--
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com
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