sr-users February 2017

sr-users@lists.kamailio.org

74 participants
99 discussions

kamailio memory leak in private memory
by david 22 Feb '17

22 Feb '17

Hello all We are observing an issue in one kamailio proxy we use. The consecuence of an unknow cause is that the private memory of some UDP receiver processes in where we listen from a particular IP, seems to be draining along the time while processing traffic. Quite "slowly" but maybe aroung 200K in 3-4hours, depending on the moment of the day. This is quite weird for us, because it seemed like it was caused by some particular traffic profile, since we have several IP listening (8 children each) and we only see the issue in the UDP receiver processes of some of those IPs. Besides we have moved the kamailio service listening on the same IP to several different physical servers, and the behaviour is the same. We look at it ussing pkg.stats kamcmd command and for instance if we track one of the process affected pid: 23784 rank: 53 used: 2838616 free: 13005408 real_used: 3771808 pid: 23784 rank: 53 used: 2842584 free: 12999280 real_used: 3777936 This 2 outputs were taken with 10min diff between each other. But we dont know where or how to look at it. We have been these last days trying to search for patterns to allocate some particular traffic source causing something weird, but no luck. We have checked all the SIP INVITE messages looking for anything weird at any field but no luck, besides we sometimes see some bad headers with blank spaces in the uri or thing like that but those cases we have an error and we dont think it can cause a memory leak. Shared memory seems to be stable. We also have checked the config we are using and we have been discarding possible issues since we dont think the $var variables we are using could cause that issue (but you never know....) We tried to debug the kamailio on one affected IP compiling it with DBG_SYS_MALLOC , and doing the dump of the pkg mem status when the kamailio was restarted and no traffic was processed, and also when it had traffic processed. in this last case, we removed traffic, waited for 20min and made the dump i attach you both files, we have the debug logs, but they are very big to be passed here, and we dont know what to look for :) could you please give us some guidance or clue to at least start to searching for something that can cause this issue? thanks alot and regards david

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parse_addr_spec(): unexpected char [^M] in status 6:
by Abdoul Osséni 21 Feb '17

21 Feb '17

Hello, Could you help us to fix this error? <core> [parser/parse_addr_spec.c:662]: parse_addr_spec(): unexpected char [^M] in status 6: Regards Abdoul.

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Transaction-persistent data and uac_req_send()
by Alex Balashov 21 Feb '17

21 Feb '17

Hello, I am using uac_req_send() to send INVITEs to a redirect server. However, upon receiving the redirect, I need access to some state information that was last available at the time of sending the request. Does uac_req_send() allow me to persist AVPs like a normal TM transaction? If not, what are my options, other than building my own state using htable or what have you? I would really rather not maintain—and be responsible for garbage-collecting—externally constructed state like that if possible. Thanks! -- Alex -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

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Kamailio 4.4 with 2 Asterisk 13
by Graham Brown 20 Feb '17

20 Feb '17

I'm trying to load balance 2 Asterisk servers with Kamailio offloading the registration to Kamailio using the Asterisk real-time database tables. I have a problem with the dispatcher module, if there is a t_on_failure route it always goes into that, if I remove that then I would expect every call to round robin but I'm only ever hitting the same server from the same extension (seems like sticky session based on source ip). 1. how do I fix my failure route so I can reboot server 1 and server 2 will be used 2. how to I change the sticky session behaviour. Another issue I am facing with extensions registering to Asterisk are only avaliable on the server they routed to My assumption was if using the Asterisk real-time database I would get the contact on both servers. Maybe my architecture is incorrect, I'm open to suggestions. Currently Kamailio is not storing locations (assuming that is the extension contact) maybe that is a better solution, but I dont know how to configure Asterisk to forward everything to Kamailio then or integrate via the database or something. Thanks in advance for any help Regards Graham

2 1

Cleaning wiki accounts
by Daniel-Constantin Mierla 20 Feb '17

20 Feb '17

Hello, I noticed a lot of random usernames for the accounts created to edit the wiki. Apart of several which did some which did some edits to add spam, most of them are inactive. Not sure what would be the real purpose behind them, but I am going to remove anything that doesn't look as a community user. Shall I remove an account with random id, but for a good user, let me know, it can be readded/account recreated. Cheers, Daniel -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com

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memory: Free fragment not found
by Dmitri Savolainen 17 Feb '17

17 Feb '17

Hi. My kamailio v4.4.5 installation ( -m 512 -M 64 ) stop sip processing with repeatable error: Feb 15 21:45:05 kamailio[14173] ERROR: <core> [mem/f_malloc.c:415]: > fm_search_defrag(): fm_search_defrag(0x7f39917fa010, 952); Free fragment > not found! > Feb 15 21:45:05 kamailio[14173] ERROR: <core> [mem/f_malloc.c:498]: > fm_malloc(): fm_malloc(0x7f39917fa010, 952) called from core: rvalue.c: > rval_new_empty(224), module: > core; Free fragment not foun while it was enough free shared memory according to kamcmd> core.shmmem m > { > total: 512 > free: 472 > used: 27 > real_used: 39 > max_used: 51m > fragments: 37035 > } whether it was about package memory or smth else? Thanks! -- Savolainen Dmitri

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MSILO offline messages are coming in reverse order.
by Venkatesh Macha 17 Feb '17

17 Feb '17

Hi all, I am using MSILO module for the offline messaging feature. It is working good. But If I send more than one message to the offline user. Those messages are delivering in the reverse order. Please consider the following scenario. A sending B ( B is offline, so messages are stored in DB) hi hello how are you Now B comes online and registers. Kamailio sending the messages but App is getting them in reverse order. how are you hello hi Is there any possibility to tell Kamailio to send them in order. ? Thank you in advance. -- View this message in context: http://sip-router.1086192.n5.nabble.com/MSILO-offline-messages-are-coming-i… Sent from the Users mailing list archive at Nabble.com.

2 2

Problem with dispatcher on Kamailio 4.2 and Debian 8
by przeqpiciel 17 Feb '17

17 Feb '17

Hi, I'm trying to setup dispatcher module to working with mysql database but when i put to kamailio.cfg below lines then kamailio wont starts. loadmodule "dispatcher.so" modparam("dispatcher", "db_url", "mysql://kamailioro:kamailioro@localhost /kamailio") modparam("dispatcher", "table_name", "dispatcher") i tried connect to mysql with credentials which you can see in mod_param line and i could query all kamailio database. im really new in this and i dont know how to debug this, is anybody could help me with it ? Best regards, Tomasz

2 4

Kamailio 4.2 on Debian 8 and dispatcher problem
by przeqpiciel 16 Feb '17

16 Feb '17

2 1

Re: [SR-Users] Timejump causes kamailio to hang/stall
by erik 16 Feb '17

16 Feb '17

Thanks Daniel, I will look into that. Indeed I found the logic that corrects the time ticks for any drifting, using the time of day. I guess that causes the registrations to expire. I am out of the office for a couple of days, but will get back to you. Best Regards, Erik Hello, On 15/02/2017 14:47, Erik Visser wrote: > After I have kamailio up and running, with UAs properly registrered and sessions routed successfully, my platform faces a timejump. > The platform starts up with date&time set to 1-1-2000 and after kamailio is up and running, the date&time jumps to the current date&time, causing two effects: > - I loose all my registrations (since they expired in 3600 seconds) > - kamailio does not respond to any SIP messages for a couple of minutes > > Is there a way to have kamailio use timeticks rather than relative time for the registrations? > Does anybody recognize the hanging behavior? Any suggestions? > kamailio is using unixtime for registrations, not relative time. But the timer callbacks are using relative intervals to know when to be executed (e.g., timer callbacks are defined to be executed like very 1 minute, or every 90 seconds). It may be that some of the timers try to catch up on missed intervals. It is strange that you say no sip traffic is processed. Can you simulate again the situation and get the backtrace with gdb from few sip workers? If your traffic is over udp, then do 'kamctl ps', get the pid of processes with index 1, 2 and 3, then use gdb to attach to those PIDs and grab the output of: bt full info locals list Cheers, Daniel -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com

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sr-users February 2017