[sr-dev] [SR-Users] openser db on an external mysql server
Prakash N
prakash.n at tevatel.com
Fri Feb 15 19:48:27 CET 2013
Hi Daniel / Muhammad ,
Thanks for your great support
The problem now only got fixed ,the solution is children=1 changes in
kamailio.cfg
I have tested Ubuntu 12 and Centos 5.7 both having the issue and
solution will be the above
I am continuing testing with Asterisk 1.8 Real time with Kamailio and
I will update you the testing result by next week
With Regards
N.Prakash
On Fri, Feb 15, 2013 at 1:24 AM, Muhammad Shahzad <shaheryarkh at gmail.com>wrote:
> Thanks for insight. It is sad that many users do not give necessary logs
> and traces for debug even after several requests, nor they follow the
> advice and go for their own creativity making it very difficult to help
> them out.
>
> In my experience the best way to learn a technology, problem or just about
> anything is to become a good copy cat. After repeating same thing a few
> times one starts to understand the concept and only then one should go for
> adventure of own creativity.
>
> Anyways, i hope Prakash's problem is solved now, since i haven't seen
> anything new from him/her on this thread today. ;-)
>
> Thank you.
>
>
> On Thu, Feb 14, 2013 at 7:20 PM, Daniel-Constantin Mierla <
> miconda at gmail.com> wrote:
>
>>
>> On 2/14/13 7:09 PM, Daniel-Constantin Mierla wrote:
>>
>> I want to add few details about some case that I encountered in the past.
>> On some specific OS'es, especially centos, seems to be a limit on the
>> number of new connections allowed in the host.
>>
>>
>> To be more precise, it is about a limit on the rate of new connections.
>> So the problem is when many new connections are opened at more or less same
>> time. All is fine when new connections are opened with some delay between
>> them.
>>
>> Cheers,
>> Daniel
>>
>>
>> That results in some kamailio processes being able to connect, some not,
>> with over all result of failing to start kamailio.
>>
>> For that reason, there is a config parameter that can be used to control
>> the forking rate at startup:
>>
>> http://www.kamailio.org/wiki/cookbooks/devel/core#fork_delay
>>
>> In case of some kamailio process can connect and some cannot, try with
>> this parameter.
>>
>> Cheers,
>> Daniel
>>
>>
>> On 2/13/13 5:12 PM, Muhammad Shahzad wrote:
>>
>> Now, we have different mysql error as well as different network topology,
>>
>> 1. Kamailio IP has changed from, previously 192.168.1.170, now it is
>> 192.168.1.60 as the error says.
>>
>> *Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7576]: ERROR: <core>
>> [pt.c:350]: ERROR: fork_process(): init_child failed for process 7, pid
>> 7576, "udp receiver child=2 sock=192.168.1.60:5060"*
>>
>> 2. MySQL server has changed, previously it was 192.168.1.1, now its
>> 192.168.1.170 as the error says,
>>
>> *Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7575]: ERROR: db_mysql
>> [km_my_con.c:109]: driver error: Can't connect to MySQL server on
>> '192.168.1.170' (4)*
>>
>> 3. MySQL connection error has changed, previously, "Unknown database",
>> now it is "Can't connect to MySQL server".
>>
>>
>> Below i am giving steps again, please carefully check them,
>>
>> 1. On mysql server, make sure mysql service is running and listening
>> for connections on 192.168.1.170, (make sure this ip is correct as well).
>>
>> netstat -plan | grep 3306
>>
>> 2. On mysql server, make sure "openser" database is created and fully
>> populated.
>>
>> mysql -p openser
>> SELECT * FROM version;
>>
>> 3. On mysql server, make sure you have user for kamailio service
>> 'openser'@'192.168.1.60' (make sure kamailio ip here is correct) is
>> created with full permissions on "openser" database.
>>
>> SHOW GRANTS FOR 'openser'@'192.168.1.60';
>>
>> 4. On kamailio server, make sure you can access openser database using
>> user name "openser" and password "operserrw" manually (make sure user name
>> and password are correct and mentioned in kamailio.cfg correctly).
>>
>> mysql -u openser -h 192.168.1.170 -p openser
>> SELECT * FROM version;
>>
>> 5. On kamailio server, check db connection string (db username,
>> password and host), start kamailio service and check debug logs in
>> /var/log/message to see if kamailio is able to connect to mysql database.
>> If not then repeat step 1-4 again.
>>
>> Hope it solves the problem.
>>
>>
>> Thank you.
>>
>>
>> On Wed, Feb 13, 2013 at 4:23 PM, Prakash N <prakash.n at tevatel.com> wrote:
>>
>>> Hi Shahzap ,
>>>
>>> Thanks for your detail mail
>>>
>>> Now i have reinstalled other server ,still i am having the
>>> same problem
>>>
>>> If i use localhost it is working correctly ,if i changed to
>>> remote sever not working( i have changed DB HOST = 192.168.1.170 (remote
>>> server )
>>>
>>> mysql -u openser -h 192.168.1.170 -p - I can able to connect
>>>
>>>
>>> SHOW GRANTS FOR 'openser'@'192.168.1.170'; it is also granted
>>>
>>> Output
>>>
>>> +--------------------------------------------------------------------------------------------------------------------+
>>> | Grants for openser at 192.168.1.170
>>> |
>>>
>>> +--------------------------------------------------------------------------------------------------------------------+
>>> | GRANT USAGE ON *.* TO 'openser'@'192.168.1.170' IDENTIFIED BY
>>> PASSWORD '*6A673AEF9A79D8A0A4A11EE2FCDCA705FAEC1AE4' |
>>> | GRANT ALL PRIVILEGES ON `openser`.* TO 'openser'@'192.168.1.170'
>>> |
>>>
>>> +--------------------------------------------------------------------------------------------------------------------+
>>> 2 rows in set (0.00 sec)
>>>
>>>
>>>
>>> *My error messages :*
>>> *
>>> *
>>> *
>>> kamailio: WARNING: <core> [socket_info.c:1392]: WARNING: fix_hostname:
>>> could not rev. resolve 192.168.1.60
>>> Feb 14 01:40:58 192 kamailio: WARNING: <core> [socket_info.c:1392]:
>>> WARNING: fix_hostname: could not rev. resolve 192.168.1.60
>>> Feb 14 01:40:58 192 kamailio: INFO: <core> [tcp_main.c:4832]: init_tcp:
>>> using epoll_lt as the io watch method (auto detected)
>>> Feb 14 01:40:58 192 /usr/local/sbin/kamailio[7569]: INFO: usrloc
>>> [hslot.c:53]: locks array size 512
>>> Feb 14 01:40:58 192 /usr/local/sbin/kamailio[7569]: INFO: auth
>>> [auth_mod.c:329]: auth: qop set, but nonce-count (nc_enabled) support
>>> disabled
>>> Feb 14 01:40:59 192 /usr/local/sbin/kamailio[7569]: INFO: <core>
>>> [udp_server.c:179]: INFO: udp_init: SO_RCVBUF is initially 229376
>>> Feb 14 01:40:59 192 /usr/local/sbin/kamailio[7569]: INFO: <core>
>>> [udp_server.c:230]: INFO: udp_init: SO_RCVBUF is finally 262142
>>> Feb 14 01:40:59 192 /usr/local/sbin/kamailio[7569]: INFO: <core>
>>> [udp_server.c:179]: INFO: udp_init: SO_RCVBUF is initially 229376
>>> Feb 14 01:40:59 192 /usr/local/sbin/kamailio[7569]: INFO: <core>
>>> [udp_server.c:230]: INFO: udp_init: SO_RCVBUF is finally 262142
>>> Feb 14 01:41:00 192 avahi-daemon[5122]: Withdrawing address record for
>>> 192.168.1.60 on eth0.
>>> Feb 14 01:41:00 192 avahi-daemon[5122]: Host name conflict, retrying
>>> with <192-165>
>>> Feb 14 01:41:00 192 avahi-daemon[5122]: Registering new address record
>>> for fe80::a00:27ff:feea:b793 on eth0.*.
>>> Feb 14 01:41:00 192 avahi-daemon[5122]: Registering new address record
>>> for 192.168.1.60 on eth0.IPv4.
>>> Feb 14 01:41:00 192 avahi-daemon[5122]: Registering HINFO record with
>>> values 'X86_64'/'LINUX'.
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7575]: ERROR: db_mysql
>>> [km_my_con.c:109]: driver error: Can't connect to MySQL server on
>>> '192.168.1.170' (4)
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7575]: ERROR: <core>
>>> [db.c:320]: could not add connection to the pool
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7575]: ERROR: auth_db
>>> [authdb_mod.c:174]: unable to connect to the database
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7575]: ERROR: <core>
>>> [sr_module.c:896]: init_mod_child(): Error while initializing module
>>> auth_db (/usr/local/lib64/kamailio/modules_k/auth_db.so)
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7575]: ERROR: <core>
>>> [pt.c:350]: ERROR: fork_process(): init_child failed for process 6, pid
>>> 7575, "udp receiver child=1 sock=192.168.1.60:5060"
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7576]: ERROR: db_mysql
>>> [km_my_con.c:109]: driver error: Can't connect to MySQL server on
>>> '192.168.1.170' (4)
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7576]: ERROR: <core>
>>> [db.c:320]: could not add connection to the pool
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7576]: ERROR: auth_db
>>> [authdb_mod.c:174]: unable to connect to the database
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7576]: ERROR: <core>
>>> [sr_module.c:896]: init_mod_child(): Error while initializing module
>>> auth_db (/usr/local/lib64/kamailio/modules_k/auth_db.so)
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7576]: ERROR: <core>
>>> [pt.c:350]: ERROR: fork_process(): init_child failed for process 7, pid
>>> 7576, "udp receiver child=2 sock=192.168.1.60:5060"
>>> Feb 14 01:41:01 192 /usr/local/sbin/kamailio[7576]: : <core>
>>> [main.c:1625]: main_loop: Cannot fork
>>>
>>> *
>>>
>>
>> --
>> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>> Kamailio World Conference, April 16-17, 2013, Berlin
>> - http://conference.kamailio.com -
>>
>>
>> --
>> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>> Kamailio World Conference, April 16-17, 2013, Berlin
>> - http://conference.kamailio.com -
>>
>>
>
>
> --
> Muhammad Shahzad
> -----------------------------------
> CISCO Rich Media Communication Specialist (CRMCS)
> CISCO Certified Network Associate (CCNA)
> Cell: +49 176 99 83 10 85
> MSN: shari_786pk at hotmail.com
> Email: shaheryarkh at googlemail.com
>
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