sr-dev September 2023

sr-dev@lists.kamailio.org

17 participants
299 discussions

[kamailio/kamailio] tm: memory leak in case dropping messages in local-request event route (PR #3403)
by Simon Darienko 01 May '24

01 May '24

#### Pre-Submission Checklist    - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated) #### Type Of Change - [x] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality) #### Checklist:  - [x] PR should be backported to stable branches - [x] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number) #### Description I faced an issue with memory leak in case drop NOTIFY messages in the "local-request" event route in `mem_copy_subs` and `build_uac_req` analysis of mem leak: kamcmd corex.shm_summary <code>... Mar 23 12:00:28 pbx kamailio[72308]: NOTICE: fm_status: fm_sums(): count= 11 size= 7520 bytes from presence: hash.c: mem_copy_subs(141)<br> Mar 23 12:00:28 pbx kamailio[72308]: NOTICE: fm_status: fm_sums(): count= 23 size= 22536 bytes from tm: t_msgbuilder.c: build_uac_req(1618) ...</code> a lot of dropped messages in local-request event route <code>... Mar 23 12:01:09 pbx kamailio[72308]: NOTICE: fm_status: fm_sums(): count= 83 size= 51256 bytes from presence: hash.c: mem_copy_subs(141) Mar 23 12:01:09 pbx kamailio[72308]: NOTICE: fm_status: fm_sums(): count= 98 size= 116864 bytes from tm: t_msgbuilder.c: build_uac_req(1618) ...</code> no messages, no activities <code>... Mar 23 12:02:34 pbx kamailio[72308]: NOTICE: fm_status: fm_sums(): count= 83 size= 51256 bytes from presence: hash.c: mem_copy_subs(141) Mar 23 12:02:34 pbx kamailio[72308]: NOTICE: fm_status: fm_sums(): count= 96 size= 115432 bytes from tm: t_msgbuilder.c: build_uac_req(1618) ...</code> In the code, we have a comment like "never free cbp here because if t_uac_prepare fails, cbp is not freed and thus caller has no chance to discover if it is freed or not", but we'll free the cbp in two cases: 1. in case of error, but we have if (ret == E_DROP) then ret = 0; (so, no error result) 2. in case call insert_tmcb for cbp, but we don't do it for E_DROP You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/3403 -- Commit Summary -- * tm: memory leak in case dropping messages in local-request event route -- File Changes -- M src/modules/tm/uac.c (8) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3403.patch https://github.com/kamailio/kamailio/pull/3403.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3403 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/pull/3403(a)github.com>

4 9

[kamailio/kamailio] Option to not add received via param (Issue #3515)
by zusrut 15 Apr '24

15 Apr '24

### Description Hello. Probably I'm doing something wrong but I can't get rid of **received** parameter in the **Via** header in responses from kamailio by websocket transport. According [RFC 7118](https://datatracker.ietf.org/doc/rfc7118/): `` When a SIP WebSocket Server receives a request, it MAY decide not to add a "received" parameter to the top Via header. Therefore, SIP WebSocket Clients MUST accept responses without such a parameter in the top Via header regardless of whether the **Via** "sent-by" field contains a domain name. `` ### Expected behavior For responses to websocket transport have a way to not add **received** parameter in **Via** header #### Actual observed behavior Responses to OPTION or REGISTER methods trough websocket got **received** containing IP we want to not show to the end users. ### Possible Solutions maybe add a param in **tm** module or something ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.2.1 (x86_64/linux) ``` and ``` kamailio 5.6.1 (x86_64/linux) b36a13 ``` -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3515 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3515(a)github.com>

4 7

[kamailio/kamailio] branch_failure route in case 503 and dns failover (PR #3138)
by vlitvinov 02 Apr '24

02 Apr '24

4 16

[kamailio/kamailio] topos module breaks UPDATE (Issue #3437)
by Guybrush T. 27 Mar '24

27 Mar '24

### Description Kamailio v5.5.6 with topos module and postgres DB. UAC (A) -> Kamailio Registrar (B) -> Kamailio PSTN GW (C) -> PSTN (D) Call goes from A to D, PSTN sends UPDATE, UPDATE is routed from C to A instead to B and then to A. #### Reproduction Caller calls callee and receives an UPDATE from callee. In my case it was when the call was routed to voicemail. #### Log Messages ``` Kamailio takes the wrong route in UPDATE (upstream) case. May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: topos [tps_msg.c:882]: tps_request_received(): r-uri updated to: [sip:1234@<UAC-IP>;uniq=B0EB9A84A278626DA07219E2AE01C] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: topos [tps_msg.c:187]: tps_add_headers(): adding to headers(0) - [Route: sip:<<KamailioPSTNgwIP>>;lr=on;ftag=9945501E2B94B883;did=1fc.42f;nat=yes#015#012] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: topos [tps_msg.c:187]: tps_add_headers(): adding to headers(0) - [P-SR-XUID: atpsh-64527b0a-40362-1#015#012] The right one would be the x_rr (a_rr), but it takes only the s_rr: May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: db_postgres [km_res.c:234]: db_postgres_convert_rows(): PQgetvalue(0x7fcb4893db50,0,7)=[sip:<KamailioRegistrarIP>;lr=on;ftag=9945501E2B94B883;did=1fc.7b92] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: db_postgres [km_res.c:242]: db_postgres_convert_rows(): [0][7] Column[x_rr]=[sip:<KamailioRegistrarIP>;lr=on;ftag=9945501E2B94B883;did=1fc.7b92] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: db_postgres [km_res.c:234]: db_postgres_convert_rows(): PQgetvalue(0x7fcb4893db50,0,8)=[sip:<PSTNgw>:5060;transport=udp;lr;Hpt=8ef8_116;CxtId=3;TRC=ffffffff-ffffffff;X-HwB2bUaCookie=18614] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: db_postgres [km_res.c:242]: db_postgres_convert_rows(): [0][8] Column[y_rr]=[sip:<PSTNgw>:5060;transport=udp;lr;Hpt=8ef8_116;CxtId=3;TRC=ffffffff-ffffffff;X-HwB2bUaCookie=18614] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: db_postgres [km_res.c:234]: db_postgres_convert_rows(): PQgetvalue(0x7fcb4893db50,0,9)=[sip:<<KamailioPSTNgwIP>>;lr=on;ftag=9945501E2B94B883;did=1fc.42f;nat=yes] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263013]: DEBUG: db_postgres [km_res.c:242]: db_postgres_convert_rows(): [0][9] Column[s_rr]=[sip:<<KamailioPSTNgwIP>>;lr=on;ftag=9945501E2B94B883;did=1fc.42f;nat=yes] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263019]: DEBUG: db_postgres [km_res.c:242]: db_postgres_convert_rows(): [0][10] Column[a_rr]=[sip:<KamailioRegistrarIP>;lr=on;ftag=9945501E2B94B883;did=1fc.7b92] May 3 15:23:12 sipproxy /usr/sbin/kamailio[263019]: DEBUG: db_postgres [km_res.c:234]: db_postgres_convert_rows(): PQgetvalue(0x7fcb4893dbd8,0,11)=[] ``` ### Possible Solutions Respect Route headers for UPDATE messages. ### Additional Information Current running kamailio 5.5.6 but tried also latest 5.6.4 with same behavior. ``` version: kamailio 5.5.6 (x86_64/linux) 72dbb0 flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 72dbb0 compiled on 05:48:21 Apr 27 2023 with gcc 11.3.0 ``` * **Operating System**: ``` Distributor ID: Ubuntu Description: Ubuntu 22.04.2 LTS Release: 22.04 Codename: jammy Linux sipproxy 5.15.0-70-generic #77-Ubuntu SMP Tue Mar 21 14:02:37 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux ``` Possibly related bug: https://github.com/kamailio/kamailio/issues/3090 -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3437 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3437(a)github.com>

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[kamailio/kamailio] Library libjson-c-dev 0.15.2 not compatible with pua_json module (Issue #3376)
by Henning Westerholt 28 Feb '24

28 Feb '24

There seems to be an incompatibility in the pua_json module related to the libjson-c-dev" version. The module crashes on startup on version 0.15.2 (e.g. from Debian bullseye). It works with version 0.12 (e.g. Debian buster). Backtrace below: ``` #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 #1 0x00007f6d265e5537 in __GI_abort () at abort.c:79 #2 0x00007f6d265e540f in __assert_fail_base (fmt=0x7f6d2675d6a8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7f6d2322c091 "jso->_ref_count > 0", file=0x7f6d2322c064 "./json_object.c", line=308, function=<optimized out>) at assert.c:92 #3 0x00007f6d265f4662 in __GI___assert_fail (assertion=0x7f6d2322c091 "jso->_ref_count > 0", file=0x7f6d2322c064 "./json_object.c", line=308, function=0x7f6d2322c480 "json_object_put") at assert.c:101 #4 0x00007f6d23224732 in json_object_put () from /lib/x86_64-linux-gnu/libjson-c.so.5 #5 0x00007f6d25842362 in pua_json_publish (msg=0x7fffb3fffb20, json=0x7f6d25ff5778 "{\"Call-ID\":\"111\",\"Event-Category\":\"presence\",\"Event-Name\":\"update\",\"Event-Package\":\"message-summary\",\"Expires\":\"3600\",\"To\":\"sip:103@XXX.YYY.55.208\",\"To-User\":\"103\",\"To-Realm\":\"XXX.YYY.55.208\",\"From\":\""...) at pua_json_publish.c:383 #6 0x00007f6d2583e74a in w_pua_json_publish (msg=0x7fffb3fffb20, p1pjson=0x7f6d25ff5988 "xW\377%m\177", p2=0x0) at pua_json_mod.c:100 #7 0x0000563199d1c47e in do_action () #8 0x0000563199d29ae6 in run_actions () #9 0x00007f6d2324444e in ?? () from /usr/lib/x86_64-linux-gnu/kamailio/modules/xhttp.so #10 0x00007f6d23246005 in ?? () from /usr/lib/x86_64-linux-gnu/kamailio/modules/xhttp.so #11 0x0000563199e6cb10 in nonsip_msg_run_hooks () #12 0x0000563199ede538 in receive_msg () #13 0x0000563199cac4f2 in receive_tcp_msg () #14 0x0000563199caeb51 in tcp_read_req () #15 0x0000563199cb2028 in ?? () #16 0x0000563199c9da4f in ?? () #17 0x0000563199cb4f8c in tcp_receive_loop () #18 0x0000563199e2330b in tcp_init_children () #19 0x0000563199c8967f in main_loop () #20 0x0000563199c9446e in main () ``` -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3376 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3376(a)github.com>

3 11

[kamailio/kamailio] [pua] reginfo_increase_version does nothing (Issue #3234)
by Matteo 09 Feb '24

09 Feb '24

### Description The reginfo notifications sent via pua_reginfo + presence_reginfo contains the version fixed to `0`. The pua docs report the param `reginfo_increase_version` which should increase the version if enabled, but currently does nothing. Looking into the code seems to confirm that, param is read from `pua` module but is not used anywhere. While the param `dlginfo_increase_version` seems to be used for the intended scope. #### Reproduction Setup pua + pua_reginfo to publish registration informations and observe that version param of reginfo is always 0, not respecting pua `reginfo_increase_version` setting. ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.6.1 (x86_64/linux) flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: unknown compiled with gcc 9.4.0 ``` * **Operating System**: ``` Linux Debian bullseye/sid ``` -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3234 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3234(a)github.com>

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[kamailio/kamailio] callout from event_route [tm:local-response] only occurs once (Issue #3064)
by dpaape 03 Feb '24

03 Feb '24

version: kamailio 5.5.2 (arm6/linux) 55e232 raspberry pi 3b I initially stated that I was running on 5.5.3 but I was mistaken. However I checked the 5.5.3 source and it appears to be the same. I think that there is a bug in the tm module with respect to the "tm:local-response" event route. In the "t_reply.c" file, there is a static variable called '_tm_local_response_set_lookup'. This variable is initialized at load time to zero. It is checked in the '_reply_light()' routine and will initiate a local callback from the config script if "armed". The problem as I see it is that if the callback is readied, the variable is set to one. But it is never reset. So the observed behavior is as follows. A REGISTER is received and the request_route arms the callback. The REGISTER requires an authorization (local database sqlite). After the 401 is sent back, the callback via the event route is called as expected. All good except that the event route script fragment is never executed again after the first call... ever, even if it's a new REGISTER request. I would think that somewhere in the tm module, the variable should be reset to zero so that subsequent transactions can initiate the event route again. Or maybe the variable ought to live somewhere in the transaction cell??? . . . t_on_reply ("MY_FRAG"); t_on_failure ("MY_FRAG"); . . . event_route [tm:local-response] { xlog ("L_NOTICE", IN tm:local-response\n"); my_function(); } . . . So 'my_function()' is only called once. -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3064 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3064(a)github.com>

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[kamailio/kamailio] Silence “make: --libs: No such file or directory” warnings (PR #3475)
by Дилян Палаузов 23 Jan '24

23 Jan '24

With GNU make 4.4 building Kamailio prints many “make: --libs: No such file or directory” and similar warnings. This changeset utilizes immediate variables and silences the warnings on my systems. You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/3475 -- Commit Summary -- * lib/ims: Aviod “make: --libs: No such file or directory” warnings * auth_identity: Aviod “make: --libs: No such file or directory” warnings * auth_ephemeral: Aviod “make: --libs: No such file or directory” warnings * app_python3: Avoid “/bin/sh: line 1: --ldflags: command not found” warnings * app_python3s: Avoid “/bin/sh: line 1: --ldflags: command not found” warnings * cdp: Aviod “make: --libs: No such file or directory” warnings * cnxcc: Avoid “make: --libs-only-L: No such file or directory” warnings * cplc: Avoid “make: --libs-only-L: No such file or directory” warnings * crypto: Aviod “make: --libs: No such file or directory” warnings * db_postgres: Avoid “make: --libs-only-L: No such file or directory” warnings * db_redis: Avoid “make: --libs-only-L: No such file or directory” warning * dialplan: Avoid “make: --libs-only-L: No such file or directory” warning * gzcompress: Aviod “make: --libs: No such file or directory” warnings * http_async_client: Aviod “make: --libs: No such file or directory” warnings * http_client: Aviod “make: --libs: No such file or directory” warning * ims_auth: Avoid “make: --libs-only-L: No such file or directory” warning * ims_icscf: Aviod “make: --libs: No such file or directory” warning * ims_registrar_scscf: Avoid “make: --libs-only-L: No such file or directory” warnings * ims_registrar_pcscf: Aviod “make: --libs: No such file or directory” warning * ims_isc: Avoid “make: --libs-only-L: No such file or directory” warnings * jansson: Aviod “make: --libs: No such file or directory” warning * kazoo: Avoid “make: --libs: No such file or directory’ warning * lcr: Aviod “make: --libs: No such file or directory” warning * log_systemd: Aviod “make: --libs: No such file or directory” warning * lost: Aviod “make: --libs: No such file or directory” warnings * lwsc: Aviod “make: --libs: No such file or directory” warning * ndb_redis: Aviod “make: --libs: No such file or directory” warning * osp: Avoid “make: --libs: No such file or directory’ warning * outbound: Aviod “make: --libs: No such file or directory” warnings * presence: Avoid “make: --libs-only-L: No such file or directory” warnings * presence_conference: Aviod “make: --libs: No such file or directory” warning * presence_dialog: Aviod “make: --libs: No such file or directory” warning * presence_reginfo: Aviod “make: --libs: No such file or directory” warning * presence_xml: Avoid “make: --libs-only-L: No such file or directory” warnings * pua: Avoid “make: --libs-only-L: No such file or directory” warnings * pua_bla: Aviod “make: --libs: No such file or directory” warning * pua_dialoginfo: Aviod “make: --libs: No such file or directory” warning * pua_reginfo: Aviod “make: --libs: No such file or directory” warning * pua_usrloc: Aviod “make: --libs: No such file or directory” warning * pua_xmpp: Aviod “make: --libs: No such file or directory” warning * regex: Aviod “make: --libs: No such file or directory” warning * rls: Avoid “make: --libs-only-L: No such file or directory” warnings * slack: Aviod “make: --libs: No such file or directory” warning * systemdops: Avoid “make: --libs-only-L: No such file or directory” warning * tls: Aviod “make: --libs: No such file or directory” warnings * tlsa: Avoid “make: --libs-only-L: No such file or directory” warning * topos_redis: Aviod “make: --libs: No such file or directory” warning * utils: Avoid “make: --libs-only-L: No such file or directory” warnings * uuid: Aviod “make: --libs: No such file or directory” warning * websocket: Aviod “make: --libs: No such file or directory” warnings * xcap_server: Avoid “make: --libs-only-L: No such file or directory” warnings * xhttp_pi: Avoid “make: --libs-only-L: No such file or directory” warnings * xmlops: Aviod “make: --libs: No such file or directory” warning * xmlrpc: Aviod “make: --libs: No such file or directory” warning -- File Changes -- M src/lib/ims/Makefile (4) M src/modules/app_python3/Makefile (6) M src/modules/app_python3s/Makefile (6) M src/modules/auth_ephemeral/Makefile (2) M src/modules/auth_identity/Makefile (4) M src/modules/cdp/Makefile (4) M src/modules/cnxcc/Makefile (4) M src/modules/cplc/Makefile (4) M src/modules/crypto/Makefile (2) M src/modules/db_postgres/Makefile (2) M src/modules/db_redis/Makefile (2) M src/modules/dialplan/Makefile (2) M src/modules/gzcompress/Makefile (2) M src/modules/http_async_client/Makefile (6) M src/modules/http_client/Makefile (2) M src/modules/ims_auth/Makefile (4) M src/modules/ims_icscf/Makefile (4) M src/modules/ims_isc/Makefile (4) M src/modules/ims_registrar_pcscf/Makefile (4) M src/modules/ims_registrar_scscf/Makefile (4) M src/modules/jansson/Makefile (2) M src/modules/kazoo/Makefile (2) M src/modules/lcr/Makefile (2) M src/modules/log_systemd/Makefile (2) M src/modules/lost/Makefile (6) M src/modules/lwsc/Makefile (2) M src/modules/ndb_redis/Makefile (2) M src/modules/osp/Makefile (2) M src/modules/outbound/Makefile (7) M src/modules/presence/Makefile (4) M src/modules/presence_conference/Makefile (4) M src/modules/presence_dialoginfo/Makefile (4) M src/modules/presence_reginfo/Makefile (4) M src/modules/presence_xml/Makefile (4) M src/modules/pua/Makefile (4) M src/modules/pua_bla/Makefile (4) M src/modules/pua_dialoginfo/Makefile (4) M src/modules/pua_reginfo/Makefile (4) M src/modules/pua_usrloc/Makefile (4) M src/modules/pua_xmpp/Makefile (4) M src/modules/regex/Makefile (2) M src/modules/rls/Makefile (4) M src/modules/slack/Makefile (2) M src/modules/systemdops/Makefile (2) M src/modules/tls/Makefile (4) M src/modules/tlsa/Makefile (4) M src/modules/topos_redis/Makefile (2) M src/modules/utils/Makefile (4) M src/modules/uuid/Makefile (2) M src/modules/websocket/Makefile (2) M src/modules/xcap_server/Makefile (4) M src/modules/xhttp_pi/Makefile (4) M src/modules/xmlops/Makefile (4) M src/modules/xmlrpc/Makefile (4) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3475.patch https://github.com/kamailio/kamailio/pull/3475.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3475 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/pull/3475(a)github.com>

4 16

[kamailio/kamailio] cfgt: doesn't support tm_suspend() tm_continue() (#684)
by Victor Seva 23 Jan '24

23 Jan '24

Actual implementation doesn't work with async. Need to investigate how to support it --- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/684

3 8

[kamailio/kamailio] dialog: failover database loading behaviour in shared DB scenario, expiration of dialogs (#2080)
by Henning Westerholt 20 Jan '24

20 Jan '24

The dialog module will expire dialogs that don't actually belong to the particular proxy. Scenario: 2 proxies on 5.2.4 with a loadbalancer in front. Call was routed over proxy1, dialog timeout on proxy2 was shorter (to make it easier to reproduce it). The results: * Dialog synchronized with DMQ: proxy 2 would timeout the dialog * Dialog entry synchronized to proxy2 DB and proxy2 restarted: Proxy2 would timeout the dialog * Dialog entry synchronized to proxy2 DB and proxy2 not restarted: Proxy2 would _not_ timeout the dialog (I’ve tried both db_mode 1 and 2) So the proxy2 would load the dialog into memory and then later expire it. So timeout routes, send_bye on timeout would not work correctly. One idea to solve this would be to check e.g. over the existing socket data if the dialog belongs to this proxy and skip loading it in this case. This could be also made configurable e.g. with a module parameter. Any comments? Better ideas how to solve it? -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2080

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