On Thu, Nov 19, 2020 at 10:17 AM Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

install gdb and when the kamailio stops responding send here the file generated by the next command:

kamctl trap

The path to the file is printed when the command is executed. Note that it can take a bit to generate the file, if you have a lot of kamailio processes. The file contains the gdb backtrace for each process, showing what they do at that moment.

For a few of other hints, be sure you don't block the traffic with the firewall/fail2ban or with pike module in kamailio.cfg.

Cheers,
Daniel

On 19.11.20 16:46, Uttam Giri wrote:
Hi,

We are using Kamailio with Jitsi client where we observed sometimes Kamailio stops responding to sip messages. As a result, my Jitsi client goes offline and never back online. Also in the Kamailio syslog there are no error logs(debug enabled) related to this issue. As a temporary workaround, we had to restart the Kamailio server all the time.

Does anyone observed a similar issue and can suggest any resolution.

Kamailio version:-

version: kamailio 5.3.5 (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_BLACKLIST, 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 7.5.0

UDP process when Kamailio stops responding:-.

root@ip-10-68-16-14:/home/ugiri# kamctl ps
{
"jsonrpc": "2.0",
"result": [
{
"IDX": 0,
"PID": 15436,
"DSC": "main process - attendant"
}, {
"IDX": 1,
"PID": 15442,
"DSC": "udp receiver child=0 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 2,
"PID": 15443,
"DSC": "udp receiver child=1 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 3,
"PID": 15444,
"DSC": "udp receiver child=2 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 4,
"PID": 15445,
"DSC": "udp receiver child=3 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 5,
"PID": 15446,
"DSC": "udp receiver child=4 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 6,
"PID": 15447,
"DSC": "udp receiver child=5 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 7,
"PID": 15448,
"DSC": "udp receiver child=6 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 8,
"PID": 15449,
"DSC": "udp receiver child=7 sock=10.68.16.14:5060 (100.26.5.214:5060)"
}, {
"IDX": 9,
"PID": 15450,
"DSC": "slow timer"
}, {
"IDX": 10,
"PID": 15451,
"DSC": "timer"
}, {
"IDX": 11,
"PID": 15452,
"DSC": "secondary timer"

}, {
"IDX": 12,
"PID": 15453,
"DSC": "JSONRPCS FIFO"
}, {
"IDX": 13,
"PID": 15454,
"DSC": "JSONRPCS DATAGRAM"
}, {
"IDX": 14,
"PID": 15455,
"DSC": "ctl handler"
}, {
"IDX": 15,
"PID": 15456,
"DSC": "Http Async Worker"
}, {
"IDX": 16,
"PID": 15457,
"DSC": "Http Async Worker"
}, {
"IDX": 17,
"PID": 15458,
"DSC": "TIMER NH"
}, {
"IDX": 18,
"PID": 15459,
"DSC": "tcp main process"
}
],
"id": 17709
}

Thanks,

Uttam
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-- 
Daniel-Constantin Mierla -- www.asipto.com
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