hishamway created an issue (kamailio/kamailio#4808)
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### Description
<!--
We are heavily relying on nats message to update presence info in our kamailio
server.
we have
event_route[nats:presence] {
xlog("L_INFO", "received event payload [$natsData]");
pua_json_publish($natsData);
}
$natsData varies from dialog and message-summary. Everything working fine even
pkg mem and shm memory is looking good, but we are experienceing a 2% increase
in overall memory usage of kamailio server.
upon investigation
admin@sipcore2:~$ ps aux | grep kamailio
kamailio 2640591 0.0 1.8 377628 36336 ? SNl Jun16 0:00
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640595 0.1 2.7 377820 54748 ? SN Jun16 41:54
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640596 0.1 2.7 377828 54740 ? SN Jun16 41:55
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640597 0.1 2.7 377800 54712 ? SN Jun16 42:12
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640598 0.1 2.7 377800 54764 ? SN Jun16 42:01
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640599 0.1 2.7 377820 54396 ? SN Jun16 41:51
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640600 0.1 2.7 377808 54720 ? SN Jun16 41:52
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640601 0.1 2.7 377804 54728 ? SN Jun16 42:14
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640602 0.1 2.7 377796 54804 ? SN Jun16 41:43
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640603 0.1 1.9 377628 37916 ? SN Jun16 33:56
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640604 0.1 1.9 377628 37996 ? SN Jun16 34:04
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640605 0.1 1.9 377628 38504 ? SN Jun16 33:57
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640606 0.1 1.9 377628 38544 ? SN Jun16 34:01
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640607 0.0 1.8 377628 37424 ? SN Jun16 0:46
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640608 0.0 1.7 377628 34532 ? SN Jun16 19:49
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640609 0.1 1.8 377776 36392 ? SN Jun16 29:19
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640610 0.1 1.8 377628 37220 ? SN Jun16 23:23
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640611 0.0 1.8 377628 35884 ? SN Jun16 0:16
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640612 0.0 1.8 377628 36368 ? SN Jun16 0:03
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640613 0.0 1.8 377628 36764 ? SN Jun16 0:00
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640614 0.0 1.4 377628 29420 ? SN Jun16 0:06
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640615 0.0 1.4 377628 29508 ? SN Jun16 0:08
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640616 0.0 1.6 377628 33064 ? SN Jun16 0:08
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640617 0.0 1.4 377628 29232 ? SN Jun16 0:06
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640618 0.0 1.3 377628 27160 ? SN Jun16 0:01
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640619 0.0 1.8 380140 36364 ? SN Jun16 16:09
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640620 0.0 0.8 377628 16408 ? SN Jun16 1:06
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640621 0.0 1.9 377628 39256 ? SN Jun16 7:38
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640622 0.0 1.9 377628 39444 ? SN Jun16 7:39
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640623 0.0 0.6 443240 12528 ? SNl Jun16 0:01
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640624 0.0 22.8 901992 454004 ? SNl Jun16 4:05
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640625 0.0 1.5 443164 31556 ? SNl Jun16 2:58
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640626 0.0 1.4 443164 28380 ? SNl Jun16 2:56
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640627 0.0 0.6 377628 12096 ? SN Jun16 0:00
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640628 0.0 0.8 377628 16380 ? SN Jun16 0:59
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640629 0.0 0.6 377628 12844 ? SN Jun16 0:19
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640640 0.0 0.6 377628 12844 ? SN Jun16 0:19
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640641 0.0 0.6 377628 12844 ? SN Jun16 0:20
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
kamailio 2640642 0.0 0.6 377628 13004 ? SN Jun16 0:15
/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/main.cfg -m
256 -M 32 --atexit=no
admin 3177222 0.0 0.0 3884 1908 pts/0 S+ 11:42 0:00 grep kamailio
sudo kamcmd core.ps
2640623
NATS Subscriber
2640624
NATS Subscriber
2640624 is the child process handling Nat's subscriber.
-->
### Troubleshooting
#### Reproduction
<!--
Our current configurations
# ----- nats params -----
modparam("nats", "nats_url", "NATS_URL")
modparam("nats", "num_publish_workers", 2)
modparam("nats", "subject_queue_group", "NATS_PRESENCE_SUBJECT_QUEUE_GROUP")
modparam("nats", "subject_queue_group", "NATS_SIP_USER_SUBJECT_QUEUE_GROUP")
# ----- presence params -----
modparam("presence_dialoginfo", "force_dummy_dialog", 1)
modparam("presence_xml", "force_dummy_presence", 1)
modparam("presence_xml", "force_active", 1)
modparam("presence_xml", "disable_winfo", 1)
modparam("presence_xml", "disable_bla", 1)
modparam("presence", "db_url", PRESENCE_DBURL)
modparam("presence", "db_update_period", 30)
modparam("presence", "db_table_lock_type", 0)
modparam("presence", "subs_db_mode", 2)
modparam("presence", "publ_cache", 2)
modparam("presence", "timeout_rm_subs", 1)
modparam("presence", "local_log_level", 2)
modparam("presence", "startup_mode", 1)
modparam("presence", "send_fast_notify", 1)
modparam("presence", "clean_period", 30)
modparam("presence", "cseq_offset", 0)
modparam("presence", "expires_offset", 0)
modparam("presence", "min_expires_action", 1)
modparam("presence", "min_expires", 60)
modparam("presence", "max_expires", 3600)
modparam("presence", "sip_uri_match", 1)
modparam("presence", "waitn_time", 5)
modparam("presence", "notifier_processes", 1)
modparam("presence", "force_delete", 0)
modparam("presence", "active_watchers_table", "active_watchers")
modparam("presence", "subs_remove_match", 1)
modparam("presence", "enable_dmq", 0)
modparam("presence", "pres_subs_mode", 0)
event_route[nats:presence] {
xlog("L_INFO", "received event payload [$natsData]");
pua_json_publish($natsData);
}
-->
#### Debugging Data
<!--
If you got a core dump, use gdb to extract troubleshooting data - full
backtrace,
local variables and the list of the code at the issue location.
gdb /path/to/kamailio /path/to/corefile
bt full
info locals
list
If you are familiar with gdb, feel free to attach more of what you consider to
be relevant.
-->
```
(paste your debugging data here)
```
#### Log Messages
<!--
Check the syslog file and if there are relevant log messages printed by
Kamailio, add them next, or attach to issue, or provide a link to download them
(e.g., to a pastebin site).
-->
```
(paste your log messages here)
```
#### SIP Traffic
<!--
If the issue is exposed by processing specific SIP messages, grab them with
ngrep or save in a pcap file, then add them next, or attach to issue, or
provide a link to download them (e.g., to a pastebin site).
-->
```
(paste your sip traffic here)
```
### Possible Solutions
<!--
If you found a solution or workaround for the issue, describe it. Ideally,
provide a pull request with a fix.
-->
### Additional Information
- [ ] LLM/AI Assistants were involved in discovery, analysis or submitting of
the issue
- [*] It happened in a production deployment
- [ ] It happened in a testing or development deployment
- [ ] Testing or fuzzing tools were used to generate SIP traffic when it
happened
* **Kamailio Version** - output of `kamailio -v`
```
admin@sipcore1:~$ sudo kamailio -V
version: kamailio 5.8.6 (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, MEM_JOIN_FREE, 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_SEND_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 12.2.0
```
* **Operating System**:
<!--
Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu
16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `lsb_release -a` and `uname -a`)
-->
```
admin@sipcore1:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm
admin@sipcore1:~$ uname -a
Linux sipcore1.local 6.1.0-32-cloud-amd64 #1 SMP PREEMPT_DYNAMIC Debian
6.1.129-1 (2025-03-06) x86_64 GNU/Linux
```
--
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https://github.com/kamailio/kamailio/issues/4808
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