Hello,

Not, with the nathelper module it was working fine, after Kamailio restart all contacts came back as they were before restart.
Just tried now with the latest 5.4 branch - and everything seems to be working perfectly now.

Thank you Daniel.

P.S. I don't want to bother you or this topic too much, but as an idea would be nice to have an event-route for this keepalived function, where we can trigger some action when the contact is replying to the options with RTT instead of parsing the log file.

Regards,
Ilie.


On Fri, 25 Sep 2020 at 10:24, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

can you try with the lastest 5.4 branch?

Did it happen also when nathelper was used for keepalive-based contact removing?

Cheers,
Daniel

On 25.09.20 00:46, Ilie Soltanici wrote:
Hello,

It works also for me with UDP contacts, thank you. One more thing I noticed - by using db_mode=1 and db_load=1 after restarting Kamailio it's not loading anymore all contacts from the DB or it's loading but then keepalive module it's removing them from the local memory, I believe this is because keepalive doesn't know the status of the extension, will be nice to have that fixed as well.

Regards,
Ilie.

On Wed, 23 Sep 2020 at 16:35, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

actually the expires processing on keepalive was done in a callback function triggered only by nathelper, only sending keepalive and computing roundtrip was done on usrloc internal timer callbacks. I pushed fixes to master and 5.4 branches, I tested briefly with a tcp contact and all seemed ok. Let me know if works for you as well.

Cheers,
Daniel


On 23.09.20 10:51, Ilie Soltanici wrote:
Hello,

It's sitting in the memory until the expiration time it's arriving. See below the ul dump output:

Every 2.0s: /usr/local/sbin/kamcmd ul.dump                                                                                                                                                                                                                       Wed Sep 23 09:43:44 2020

{
        Domains: {
                Domain: {
                        Domain: location
                        Size: 1024
                        AoRs: {
                                Info: {
                                        AoR: 101
                                        HashID: -1698832128
                                        Contacts: {
                                                Contact: {
                                                        Address: sip:101@192.168.0.18:49195;ob
                                                        Expires: 3548
                                                        Q: 1.000000
                                                        Call-ID: 03514e7aff5a4c3785b471923ef9a4c5
                                                        CSeq: 49773
                                                        User-Agent: MicroSIP/3.20.0
                                                        Received: sip:8.8.8.123:10037
                                                        Path: [not set]
                                                        State: CS_SYNC
                                                        Flags: 0
                                                        CFlags: 12288
                                                        Socket: udp:1.1.1.10:5060
                                                        Methods: 8159
                                                        Ruid: uloc-b-5f6a75ac-7ed8-1
                                                        Instance: [not set]
                                                        Reg-Id: 0
                                                        Server-Id: 11
                                                        Tcpconn-Id: -1
                                                        Keepalive: 1
                                                        Last-Keepalive: 1600850587
                                                        KA-Roundtrip: 20790
                                                        Last-Modified: 1600850572
                                                }
                                        }
                                }
                        }
                        Stats: {
                                Records: 1
                                Max-Slots: 1
                        }
                }
        }
}

So, for the above extension (101) it will be removed from the memory only after 3548 sec, even if I killed manually that connection and the softphone it's not replying anymore to the keepalive options. By using the keepalive_timeout function from the nathelper module - it's working fine.

Regards,
Ilie.

On Wed, 23 Sep 2020 at 08:05, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

have you watched for how long it stays in memory? The usrloc keepalive should leverage the same mechanism that was used by the keepalive done by nathelper module, it should not delete the record immediately, but after ka_timeout elapsed from the last received keepalive, then expires is set to current timestamp + 10 seconds, so the next timer cleanup should remove with.

Can you get the kamctl up dump for the phone you tested with? The keepalive related attributes (last keepalive timestamp, last rtt) should be in the json output/

Cheers,
Daniel

On 23.09.20 00:13, Ilie Soltanici wrote:
Hello,

Tried with the latest 5.4 branch, but ka_timeout still not working for me, the record it's still available in ul.dump even if that extension is not replying anymore to the Options sent by the module.

See below used configuration:
modparam("usrloc", "nat_bflag", FLB_NATB)
modparam("usrloc", "use_domain", FLS_MULTIDOMAIN)
modparam("usrloc", "timer_interval", 30)
modparam("usrloc", "db_mode", 1)
modparam("usrloc", "db_load", 1)
modparam("usrloc", "db_insert_update", 1)
modparam("usrloc", "matching_mode", 3)
modparam("usrloc", "fetch_rows", 4000)
modparam("usrloc", "timer_procs", 4)
modparam("usrloc", "handle_lost_tcp", 1)
modparam("usrloc", "close_expired_tcp", 1)
modparam("usrloc", "db_timer_clean", 1)
modparam("usrloc", "server_id_filter", 1)
modparam("usrloc", "ka_mode", 1)
modparam("usrloc", "ka_method", "OPTIONS")
modparam("usrloc", "ka_from", "sip:options@devserver.net")
modparam("usrloc", "ka_domain", "devserver.net")
modparam("usrloc", "ka_filter", 0)
modparam("usrloc", "ka_timeout", 60)
modparam("tm|usrloc", "xavp_contact", "ulattrs")

version: kamailio 5.4.1 (x86_64/linux) 609685

Regards,
Ilie

On Tue, 22 Sep 2020 at 18:58, Ilie Soltanici <iliusha.md@gmail.com> wrote:
Thank you Daniel for the latest update, I will try to test the latest 5.4 branch on the Dev environment and will come back here for any issues encountered.

Regards,
Ilie.

On Tue 22 Sep 2020 at 18:44, Daniel-Constantin Mierla <miconda@gmail.com> wrote:










Hello,



the usrloc keepalive are done on its timer interval:



  -

https://www.kamailio.org/docs/modules/stable/modules/usrloc.html#usrloc.p.timer_interval



For the keepalive timeout I was misled by presence of the global

variable in the usrloc, but was actually not exported by this

module. I did it afterwards, just pushed to branch 5.4 as well.



While is not recommended to run both at the same time, imo

nothing really bad can happen, you may see more keepalives for

natted udp contacts (not for tls, tcp, ...).



As for an unorthodox and untested idea :-) : if you do not want

to run from latest 5.4 branch yet, you can eventually set

natping_interval to a very large value, like 20 years in seconds,

so you are pretty sure you will do an upgrade before nathelper

timer fires,



Cheers,


Daniel




On 22.09.20 19:17, Ilie Soltanici

wrote:










Hello,







Is there any way to add those functions from the nathelper

module to the usrloc module?







keepalive_timeout


natping_interval







I'm looking to use ka_mode feature from the usrloc module

in order to have roundtrip time computed for each extension

but because those functions are missing in the usrloc module

and per documentation this functionality conflicts in some way

with nathelper module it's not recommended to have both

modules enabled.  Or maybe there is another way to have them

"interconnected"?









Thank you.











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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla