sr-users December 2015

sr-users@lists.kamailio.org

70 participants
111 discussions

Kamailio Redundancy Models
by Frank Costeira 08 Dec '15

08 Dec '15

Hi, I'm new to Kamailio and I'm trying to understand the architectural options and levels of redundancy that can be attained with Kamailio. In my particular scenario I would be using Kamailio as proxy server (no user registrations) to handle global prefix routing between 3 major regions; Americas, EMEA, and Aisa-Pacific. The idea would be to create a pool of Kamailio servers in each region. The pool would consist of two HA pairs. The HA pairs would be placed in two separate datacenter, and sessions would be distributed between the datacenter. In the event the Kamailio server failed it would have a local backup in the datacneter. In the event a datacenter failed, there would be an alternate datacenter available in the region. Can the LCR feature/module share a database, so that each kamailio server in the region have the same call routing information? Is there a feature or a way to automate the configuration of several Kamailio servers, when you want them to have the same routing logic/configuration. Is there a module, feature or API that would allow Kamailio to fetch a config, or possibly push the config via an API when the application is initialized. What is the best method for establishing a 1:1 back up with Kamailio? If we use TCP and route-via headers, the SIP session would be pinned through the active proxy server. Is there away to provide stateful failover so that the session state is maintained between primary and the backup server? Any pointers or recommendations would be highly appreciated. Regards, Frank

2 1

secure websocket error in kamailio
by Priyaranjan Nayak 08 Dec '15

08 Dec '15

Hi All, I am running the kamailio for secure websocket (WSS). While running traffic testing the kamailio is not able to take beyond 2300 connection. I am getting below error. 45(12831) ERROR: tls [tls_server.c:243]: tls_fix_connection_unsafe(): tls: ssl bug #1491 workaround: not enough memory for safe operation: 208 45(12831) ERROR: sl [../../forward.h:247]: msg_send(): tcp_send failed 45(12831) ERROR: websocket [ws_handshake.c:113]: ws_send_reply(): sending reply 46(12832) ERROR: <core> [tcp_main.c:3577]: handle_ser_child(): received CON_ERROR for 0x7f03e0b0fa18 (id 651), refcnt 3, flags 0x4018 45(12831) WARNING: <core> [tcp_read.c:1642]: handle_io(): F_TCPCONN connection marked as bad: 0x7f03e0b0fa18 id 651 refcnt 1 44(12830) ERROR: tls [tls_server.c:154]: tls_complete_init(): tls: ssl bug #1491 workaround: not enough memory for safe operation: 304 44(12830) ERROR: <core> [tcp_read.c:1326]: tcp_read_req(): ERROR: tcp_read_req: error reading I have seen below data in kamailio at the time of getting error. shmem:fragments = 57 shmem:free_size = 16986416784 shmem:max_used_size = 193649976 shmem:real_used_size = 193452400 shmem:total_size = 17179869184 shmem:used_size = 188516920 Could you please suggest me how can I get more performance from kamailio while using WSS ? Thanks Priyaranjan

2 2

Proposing new logo for Kamailio project
by Daniel-Constantin Mierla 08 Dec '15

08 Dec '15

Hello, upon a process initiated before the summer during the IRC Devel Meeting, when we started to look for refreshing the logo of Kamailio project, we are now trying to finalize the decision and we are proposing a new logo for Kamailio project. The new proposed logo, as well as more details, can be seen at: * http://www.kamailio.org/w/2015/12/proposing-new-logo-for-kamailio-project/ We look forward to the feedback from community about this proposal - you like it or not, is too similar with other logos, etc... This announcement was sent to few of our mailing lists, but please reply to sr-users(a)lists.sip-router.org, being something concerning the community and definitely not something about development. Cheers, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com http://miconda.eu

2 6

lookup(location) offen dont work with websocket connected endpoints
by Yuriy Gorlichenko 08 Dec '15

08 Dec '15

long time ago looked this problem but resolve it by sql queries directly from confing file to location table. So while remember lookup(location) ofen can not find any contacts if its registers from websocket. it may work 10-15 times and then fails. So debug shows answer that is no connections in location table. Now at production system can not run this issue but at development system want to do it today or tomorrow.

2 1

Installing 4.3 version from git
by Jurijs Ivolga 07 Dec '15

07 Dec '15

Hi all, I'm trying to install 4.3 version from git as described here: http://www.kamailio.org/wiki/install/4.3.x/git As far as I understood latest stable version is 4.3.3, but after installing from git I'm getting 4.3.4 version which is I believe is development version. kamailio -version version: kamailio 4.3.4 (x86_64/linux) 583dc0 Could you please check this? With kind regards, Jurijs

3 2

crash on using http_query when response is 200
by Jayesh Nambiar 07 Dec '15

07 Dec '15

Hi, I'm using http_query to send a post request on a https URL. The weird part is it crashes with segmentation fault when the response from the server is 200. If the response was a 500, it works and continues processing. Here's the function: http_query("https://notify.abcd.com/onnet/call", "$avp(devices)", "Content-Type: application/json" "$var(response)"); xlog("L_INFO", "Response is $var(response)"); And here's the backtrace on crash: 0x00007f62f2bf8e38 in ?? () #1 0x00007f62ea22251b in http_query (_m=0x7f62f2c3a038, _url=0x7f62f2bf3548 "\330\064\277\362b\177", _dst=0x7f62f2bf9250 "\030\215\277\362b\177", _post=0x7f62f2bf35c8 "\200r\277\362b\177", _hdr=0x7f62f2bf91d0 "h\221\277\362b\177") at functions.c:226 #2 0x00007f62ea229e0b in w_http_query_post_hdr (_m=0x7f62f2c3a038, _url=0x7f62f2bf3548 "\330\064\277\362b\177", _post=0x7f62f2bf35c8 "\200r\277\362b\177", _hdr=0x7f62f2bf91d0 "h\221\277\362b\177", _result=0x7f62f2bf9250 "\030\215\277\362b\177") at utils.c:483 #3 0x000000000041f6b5 in do_action (h=0x7ffeb128c8c0, a=0x7f62f2bf8a58, msg=0x7f62f2c3a038) at action.c:1079 #4 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2bf6fc0, msg=0x7f62f2c3a038) at action.c:1549 #5 0x000000000041f3ce in do_action (h=0x7ffeb128c8c0, a=0x7f62f2bfb9b0, msg=0x7f62f2c3a038) at action.c:1045 #6 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2bb9388, msg=0x7f62f2c3a038) at action.c:1549 #7 0x000000000041bc28 in do_action (h=0x7ffeb128c8c0, a=0x7f62f2b8f248, msg=0x7f62f2c3a038) at action.c:678 #8 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2b8e268, msg=0x7f62f2c3a038) at action.c:1549 #9 0x000000000041f3ce in do_action (h=0x7ffeb128c8c0, a=0x7f62f2b91040, msg=0x7f62f2c3a038) at action.c:1045 #10 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2b8b7a8, msg=0x7f62f2c3a038) at action.c:1549 #11 0x000000000041bc28 in do_action (h=0x7ffeb128c8c0, a=0x7f62f2b3a2c0, msg=0x7f62f2c3a038) at action.c:678 #12 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2b3a2c0, msg=0x7f62f2c3a038) at action.c:1549 #13 0x000000000041f3ce in do_action (h=0x7ffeb128c8c0, a=0x7f62f2b47f00, msg=0x7f62f2c3a038) at action.c:1045 #14 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2b37e80, msg=0x7f62f2c3a038) at action.c:1549 #15 0x000000000041bc28 in do_action (h=0x7ffeb128c8c0, a=0x7f62f2b1c9c8, msg=0x7f62f2c3a038) at action.c:678 #16 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2b1c9c8, msg=0x7f62f2c3a038) at action.c:1549 #17 0x000000000041f3ce in do_action (h=0x7ffeb128c8c0, a=0x7f62f2b1cc28, msg=0x7f62f2c3a038) at action.c:1045 #18 0x000000000042c2ea in run_actions (h=0x7ffeb128c8c0, a=0x7f62f2b170a0, msg=0x7f62f2c3a038) at action.c:1549 #19 0x000000000042ca93 in run_top_route (a=0x7f62f2b170a0, msg=0x7f62f2c3a038, c=0x0) at action.c:1635 #20 0x000000000051c115 in receive_msg ( buf=0xab7520 <buf> "INVITE sip:bdbbf600000001b5b919d0@devsip.abcd.com:8321 SIP/2.0\r\nRecord-Route: <sip:203.153.53.145:8300;r2=on;lr=on>\r\nRecord-Route: <sip:203.153.53.145:8321;transport=tcp;r2=on;lr=on>\r\nVia: SIP/2.0/UDP"..., len=1901, rcv_info=0x7ffeb128cc10) at receive.c:196 #21 0x000000000062d427 in udp_rcv_loop () at udp_server.c:495 #22 0x00000000004b28c1 in main_loop () at main.c:1593 #23 0x00000000004b9aa5 in main (argc=5, argv=0x7ffeb128d118) at main.c:2597 Can someone please confirm the crash so that I'll go ahead and report this as an issue on the tracker. Basically when it crashes, kamailio doesn't even execute the xlog function after the http_query call. P.S. abcd.com is a changed domain for confidential reasons. Thanks, - Jayesh

3 2

PDB module long prefixes
by Igor Potjevlesch 07 Dec '15

07 Dec '15

Hi, I had configured my pdb module to accept 5 number prefixes by doing: In pdbt.c: bufsize = slen + 1 + 1 + *4* + 1 + 1; // line buff er (telephone number + colon + white space + carrier ID + newline + \0) ... ret = snprintf(p,* 7*, "%d\n", node->carrier); if (ret < 1 || ret > *6*) { And in common.h: #define MAX_PDB_CARRIERID *99999* And i hadn't had any problem until now. I had rows in my .csv like: 0645052050;10122 And it worked. The problem I have now is with prefixes bigger than 40000. I get segmentation fault when doiong a query with pdbt, however the pdbt build works good without any error. At first i thought of a buffer problem but eventhough testing with a .csv of 2 rows with 50000 prefixes will not work. Another curious effect is that for a prefix like 84238 the server changes the answer to 18754. I dont know why... Could anyone help me please? Thanks and regards, Igor.

1 0

Executing a C function from the Kamailio Script
by Mack Hendricks 07 Dec '15

07 Dec '15

We have some logic in a C function that we would like to execute from the Kamailio script. I see there are modules for calling functions in other languages. But, I don’t see anything for C. Is creating a module the only way to leverage this C function? Thanks, -Mack

4 4

SIP Trunking Kamailio directly to external SIP Trunk Provider
by amjadali_bb＠hotmail.com 07 Dec '15

07 Dec '15

Hi, I have got two Asterisk servers and both are communicating with the SIP Trunk provider (External Network) directly - the Asterisk servers are connected with the Kamailio and then Kamailio with the Agent Phones. I need some change in this architecture that I want Kamailio to communicate with the SIP Trunk provider (External Network) directly. Can any one please advise if this is possible and how ? -- View this message in context: http://sip-router.1086192.n5.nabble.com/SIP-Trunking-Kamailio-directly-to-e… Sent from the Users mailing list archive at Nabble.com.

2 1

Announcement: Next Kamailio World - May 18-20, 2016, in Berlin
by Daniel-Constantin Mierla 07 Dec '15

07 Dec '15

Hello, a short message to announces that the date and location for next Kamailio World Conference were decided - May 18-20, 2016, in Berlin, Germany. Kamailio project is celebrating 15 years of development in 2016, therefore we plan to have a special edition. Website of the event and call for presentations will be launched very soon. Meanwhile, if you haven't participated at a past edition, you can check the previous edition website in order to get an idea about the structure and content of the event: - http://www.kamailioworld.com/k03/ Have a great week, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com http://miconda.eu

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sr-users December 2015