Hello,

I've submitted https://github.com/kamailio/kamailio/pull/1932 to address this problem. I believe this is unnoticed if db_mongodb is already being used by some module because mongoc driver would be initialized for each process. The patch was tested in our testbed and it's working fine now.

Regards

On Thu, Apr 18, 2019 at 3:14 PM José Seabra joseseabra4@gmail.com wrote:

Hello there, I have NDB_MONGODB loaded in kamailio with following configurations:

*loadmodule "ndb_mongodb"* *modparam("ndb_mongodb", "server", "name=mgs1;uri='mongodb://mongodbserver:27017/proxyregistrar'")*

Kamailio breaks up on start up and prints the following messages:

*Apr 18 13:16:10.464 proxy-registrar[-]: DEBUG: <core> [core/modparam.c:83]: set_mod_param_regex(): 'ndb_mongodb' matches module 'ndb_mongodb'* *Apr 18 13:16:10.464 proxy-registrar[-]: DEBUG: <core> [core/sr_module.c:711]: find_param_export(): found <server> in module ndb_mongodb [/usr/lib64/kamailio/modules/ndb_mongodb.so]* *Apr 18 13:16:10.464 proxy-registrar[-]: DEBUG: <core> [core/modparam.c:99]: set_mod_param_regex(): found <server> in module ndb_mongodb [/usr/lib64/kamailio/modules/ndb_mongodb.so]* *Apr 18 13:16:10.464 proxy-registrar[-]: DEBUG: ndb_mongodb [mongodb_client.c:155]: mongodbc_add_server(): added server[mgs1]=mongodb://10.225.121.12:27017/proxyregistrar http://10.225.121.12:27017/proxyregistrar*

*1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: DEBUG: <core> [core/sr_module.c:942]: init_mod_child(): idx 21 rank 8: ndb_mongodb [tcp receiver (generic) child=3]* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 23* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: ALERT: <core> [main.c:739]: handle_sigs(): child process 3181 exited by a signal 11* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: ALERT: <core> [main.c:742]: handle_sigs(): core was generated* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: DEBUG: <core> [core/tcp_main.c:3513]: handle_ser_child(): dead child 16, pid 3181 (shutting down?)* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: INFO: <core> [main.c:764]: handle_sigs(): terminating due to SIGCHLD* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: DEBUG: <core> [core/io_wait.h:602]: io_watch_del(): DBG: io_watch_del (0xa6d0e0, 23, -1, 0x0) fd_no=23 called* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: DEBUG: <core> [main.c:766]: handle_sigs(): terminating due to SIGCHLD* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: INFO: <core> [main.c:819]: sig_usr(): signal 15 received* *123: INFO: <core> [main.c:819]: sig_usr(): signal 15 received* *123: INFO: <core> [main.c:819]: sig_usr(): signal 15 received* *123: INFO: <core> [main.c:819]: sig_usr(): signal 15 received* *123: INFO: <core> [main.c:819]: sig_usr(): signal 15 received* *1a7311e30a6793da-3165@10.225.121.93 1a7311e30a6793da-3165@10.225.121.93: DEBUG: ndb_mongodb [ndb_mongodb_mod.c:128]: mod_destroy(): cleaning up *

Core dump back trace output:

*(gdb) bt full* *#0 0x00007f3daa134f93 in _mongoc_client_new_from_uri () from /lib64/libmongoc-1.0.so.0* *No symbol table info available.* *#1 0x00007f3daa156553 in mongoc_uri_get_ssl () from /lib64/libmongoc-1.0.so.0* *No symbol table info available.* *#2 0x00007f3daa134f88 in _mongoc_client_new_from_uri () from /lib64/libmongoc-1.0.so.0* *No symbol table info available.* *#3 0x00007f3daa135029 in mongoc_client_new () from /lib64/libmongoc-1.0.so.0* *No symbol table info available.* *#4 0x00007f3daae6d75f in mongodbc_init () at mongodb_client.c:63*

•    rsrv = 0x7f3db0f86728*
  

•    __FUNCTION__ = "mongodbc_init"*
  

*#5 0x00007f3daae73c46 in child_init (rank=3) at ndb_mongodb_mod.c:113*

•    __FUNCTION__ = "child_init"*
  

*#6 0x00000000005470d7 in init_mod_child (m=0x7f3db0f85e88, rank=3) at core/sr_module.c:846*

•    __FUNCTION__ = "init_mod_child"*
  

*#7 0x00000000005474b6 in init_child (rank=3) at core/sr_module.c:874*

•    ret = 32573*
  

*#8 0x00000000004b3840 in fork_process (child_id=3, desc=0x7ffecc20c7f0 "udp receiver child=2 sock=10.225.121.93:5060 http://10.225.121.93:5060", make_sock=1) at core/pt.c:341*

•    pid = 0*
  

•    child_process_no = 3*
  

•    ret = -1*
  

•    new_seed1 = 1273263324*
  

•    new_seed2 = 1531871627*
  

•    sockfd = {14, 15}*
  

•    __FUNCTION__ = "fork_process"*
  

*#9 0x0000000000424b9b in main_loop () at main.c:1631*

•    i = 2*
  

•    pid = 3807*
  

•    si = 0x7f3db123a988*
  

•    si_desc = "udp receiver child=2 sock=10.225.121.93:5060
  

http://10.225.121.93:5060\000\177\000\000P\310 \314\376\177\000\000\000e|\261=\177\000\000 \313 \314\376\177\000\000\063\225{\000\000\000\000\000\027\000\000\000\000\000\000\000\000\000\000 \000\000\000\000\000\000\200\000\000\000\000\000\217e|\261=\177\000\000`~x\000\000\000\000\000\230\304\022\261=\177\000"*

•    nrprocs = 4*
  

•    woneinit = 1*
  

•    __FUNCTION__ = "main_loop"*
  

*#10 0x000000000042c4e9 in main (argc=11, argv=0x7ffecc20cc08) at main.c:2675*

•    cfg_stream = 0x2893010*
  

•    c = -1*
  

•    r = 0*
  

•    tmp = 0x7ffecc20e6fd ""*
  

•    tmp_len = 0*
  

•    port = 0*
  

•    proto = 2496*
  

•    options = 0x7697a0
  

":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"*

•    ret = -1*
  

•    seed = 173321635*
  

•    rfd = 4*
  

•    debug_save = 0*
  

•    debug_flag = 0*
  

•    dont_fork_cnt = 0*
  

•    n_lst = 0x7ffecc20cac0*
  

•    p = 0x7f3db177497d <intel_check_word+173>
  

"H\205\300t\025\017\266P\003\017\266\312D9\371\017\204", <incomplete sequence \316>*

•    st = {st_dev = 19, st_ino = 21919, st_nlink = 2, st_mode = 16832,
  

st_uid = 993, st_gid = 2, __pad0 = 0, st_rdev = 0, st_size = 40, st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1551179759, tv_nsec = 561093463}, st_mtim = {tv_sec = 1551179759,* *---Type <return> to continue, or q <return> to quit---*

•        tv_nsec = 561093463}, st_ctim = {tv_sec = 1551179759, tv_nsec
  

= 561093463}, __unused = {0, 0, 0}}*

•    __FUNCTION__ = "main"*
  

*(gdb)*

NDB_MONGODB configuration is pretty simples and currently i'm not making any mongodb operations, i'm just loading the module and trying to connect against mongodb.

Any thoughts on this issue?

Thank you

Best regards

Cumprimentos José Seabra _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users