Hello,

it can be some other limits set in the system, I encountered also with centos/redhat and couldn't figure out myself (well, not a sysadmin here). It is the reason I added fork_delay and modinit_delay. You have to dig in the settings of the system and try to tune them.

Happening can be somehow random, a matter of how busy the system is at that moment.

Cheers, Daniel

On 24.11.17 11:30, igor.potjevlesch@gmail.com wrote:

Hello Daniel,

Both Kamailio and MySQL are running under RHEL. But SELinux is deactivated.

Regards,

Igor.

*De :*Daniel-Constantin Mierla [mailto:miconda@gmail.com] *Envoyé :* jeudi 23 novembre 2017 12:56 *À :* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org; igor.potjevlesch@gmail.com *Objet :* Re: [SR-Users] Kamailio didn't start before increasing fork_delay

Hello,

are you running on centos/redhat with selinux?

Cheers, Daniel

On 23.11.17 10:45, igor.potjevlesch@gmail.com mailto:igor.potjevlesch@gmail.com wrote:

Hello,

 

We suddenly had an issue on one Kamailio instance: we were not
able to restart. Kamailio started to boot and fork and suddenly
crashed.

The last logs reported a failure regarding the ability to connect
to one MySQL instance.

 

I finally succeed  to restart after increasing: fork_delay=5000 to
fork_delay=9000.

 

How this could happen suddenly? We already restarted Kamailio on
this server.

 

Regards,

 

Igor.




_______________________________________________

Kamailio (SER) - Users Mailing List

sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>

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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 Advanced Training - www.asipto.com http://www.asipto.com Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com http://www.kamailioworld.com

Hello,

On 27.11.17 12:05, igor.potjevlesch@gmail.com wrote:

Hello Daniel,

Thank you. Do you know some OS counters (in /proc I guess?) I can look to in order to diagnose deeper?

Anyway, I'm already sure that the CAPS was higher than during another period of time.

this is not about caps, but limits that prevent creating new tcp (mysql) connections. Might be even mysql server limits (how many new connections per second it accepts). I was not able to identify the limits, that's why I added those delay parameters.

Cheers, Daniel

Regards,

Igor.

*De :*Daniel-Constantin Mierla [mailto:miconda@gmail.com] *Envoyé :* vendredi 24 novembre 2017 12:28 *À :* igor.potjevlesch@gmail.com; 'Kamailio (SER) - Users Mailing List' sr-users@lists.kamailio.org *Objet :* Re: [SR-Users] Kamailio didn't start before increasing fork_delay

Hello,

it can be some other limits set in the system, I encountered also with centos/redhat and couldn't figure out myself (well, not a sysadmin here). It is the reason I added fork_delay and modinit_delay. You have to dig in the settings of the system and try to tune them.

Happening can be somehow random, a matter of how busy the system is at that moment.

Cheers, Daniel

On 24.11.17 11:30, igor.potjevlesch@gmail.com mailto:igor.potjevlesch@gmail.com wrote:

Hello Daniel,

 

Both Kamailio and MySQL are running under RHEL. But SELinux is
deactivated.

 

Regards,

 

Igor.

 

*De :*Daniel-Constantin Mierla [mailto:miconda@gmail.com]
*Envoyé :* jeudi 23 novembre 2017 12:56
*À :* Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org>
<mailto:sr-users@lists.kamailio.org>; igor.potjevlesch@gmail.com
<mailto:igor.potjevlesch@gmail.com>
*Objet :* Re: [SR-Users] Kamailio didn't start before increasing
fork_delay

 

Hello,

are you running on centos/redhat with selinux?

Cheers,
Daniel

 

On 23.11.17 10:45, igor.potjevlesch@gmail.com
<mailto:igor.potjevlesch@gmail.com> wrote:

    Hello,

     

    We suddenly had an issue on one Kamailio instance: we were not
    able to restart. Kamailio started to boot and fork and
    suddenly crashed.

    The last logs reported a failure regarding the ability to
    connect to one MySQL instance.

     

    I finally succeed  to restart after increasing:
    fork_delay=5000 to fork_delay=9000.

     

    How this could happen suddenly? We already restarted Kamailio
    on this server.

     

    Regards,

     

    Igor.





    _______________________________________________

    Kamailio (SER) - Users Mailing List

    sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>

    https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users




-- 

Daniel-Constantin Mierla

www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>

Kamailio Advanced Training - www.asipto.com <http://www.asipto.com>

Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com <http://www.kamailioworld.com>

-- Daniel-Constantin Mierla www.twitter.com/miconda http://www.twitter.com/miconda -- www.linkedin.com/in/miconda http://www.linkedin.com/in/miconda Kamailio Advanced Training - www.asipto.com http://www.asipto.com Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com http://www.kamailioworld.com