[SR-Users] Kamailio htable mod-init route: Main process exited before writing to pipe

[George Diamantopoulos]

Also, I' found this post by Daniel in 2014:

https://lists.kamailio.org/pipermail/sr-users/2014-May/083155.html

To quote:
> Indeed, the db connection is not initialized at the time of executing
> event_route[htable:mod-init]. This is executed after all modules are
> initialized, but the sqlops connections are initialized in child init.

So maybe this is the case for 5.0.3 as well? sqlops functions can't be used
in event_route[htable:mod-init] yet?

On 28 September 2017 at 20:18, George Diamantopoulos <georgediam at gmail.com>
wrote:

> Hello,
>
> I've tested again, this time including a single sql_pvquery function in
> the event-route. Kamailio will also exit with "daemonize(): Main process
> exited before writing to pipe" in this simpler case.
>
> In the documentation, it is stated that: The event route is executed only
> once, after core and module initialization, <emphasis>but before Kamailio
> forks any child processes</emphasis>.
>
> Does this mean that I don't have (perhaps) access to pseudovariables during execution of this route? Is this the reason why kamailio exits prematurely?
>
> Thanks,
>
> George
>
>
> On 26 September 2017 at 15:37, George Diamantopoulos <georgediam at gmail.com
> > wrote:
>
>> I forgot to mention, I'm using Kamailio 5.0.3 on debian "stretch".
>>
>> On 26 September 2017 at 14:40, George Diamantopoulos <
>> georgediam at gmail.com> wrote:
>>
>>> Hello all,
>>>
>>> I've been trying to utilise event_route[htable:mod-init] in order to
>>> load information from the database into an htable on startup. However,
>>> Kamailio exits with an error for no obvious (to me) reason. Here's the log
>>> output:
>>>
>>> DEBUG: htable [htable.c:226]: child_init(): rank is (-127)
>>> DEBUG: htable [htable.c:259]: child_init(): executing
>>> event_route[htable:mod-init] (2)
>>> DEBUG: <core> [core/parser/msg_parser.c:600]: parse_msg(): SIP Request:
>>> DEBUG: <core> [core/parser/msg_parser.c:602]: parse_msg():  method:
>>> <OPTIONS>
>>> DEBUG: <core> [core/parser/msg_parser.c:604]: parse_msg():  uri:     <
>>> sip:you at kamailio.org>
>>> DEBUG: <core> [core/parser/msg_parser.c:606]: parse_msg():  version:
>>> <SIP/2.0>
>>> DEBUG: <core> [core/parser/parse_via.c:2639]: parse_via(): end of
>>> header reached, state=2
>>> DEBUG: <core> [core/parser/msg_parser.c:491]: parse_headers(): Via
>>> found, flags=2
>>> DEBUG: <core> [core/parser/msg_parser.c:493]: parse_headers(): this is
>>> the first via
>>> ERROR: <core> [core/daemonize.c:303]: daemonize(): Main process exited
>>> before writing to pipe
>>>
>>> And here's the routing block in kamailio.cfg. What I need to do is get
>>> the username for all non-expired contacts in the "location" table, perform
>>> a query on another database for each one of them and store the result in an
>>> htable:
>>>
>>> event_route[htable:mod-init] {
>>>
>>>     sql_pvquery("ck", "select username from location where now() <=
>>> expires", "$avp(registered_ng)");
>>>
>>>     $var(i) = 0;
>>>     while ( $(avp(registered_ng)[$var(i)]) != $null ) {
>>>         sql_pvquery("ca", "select property from tablename where username
>>> = $(avp(registered_ng)[$var(i)])", "$var(ng_property)");
>>>         $sht(isnguser=>$var(ng_property)) = 1;
>>>         $var(i) = $var(i) + 1;
>>>         pv_unset("$var(ng_property)");
>>>     }
>>>
>>>     pv_unset("$var(i)");
>>> }
>>>
>>> Any hints as to what I might be doing wrong? Thanks!
>>>
>>> Best regards,
>>> George
>>>
>>
>>
>
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