Hello,

Kamailio after restart(or start) sometimes can't connect to redis (via haproxy) with logs:

Dec  6 07:29:30 siptest /usr/sbin/kamailio[47291]: NOTICE: <script>: ROOT: KDMQ usrloc [764c076919c73540-39925@192.168.150.225]

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47263]: NOTICE: <script>: ROOT: OPTIONS <null> [0b4dc11225a6fc77294de97578061844@192.168.150.231:5060]

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47269]: ERROR: ndb_redis [redis_client.c:130]: redisc_init(): error communicating with redis server [redis] (127.0.0.1:6380/0): Resource temporarily unavailable

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47269]: ERROR: ndb_redis [ndb_redis_mod.c:122]: child_init(): failed to initialize redis connections

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47269]: ERROR: <core> [core/sr_module.c:923]: init_mod_child(): Error while initializing module ndb_redis (/usr/lib64/kamailio/modules/ndb_redis.so)

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47269]: ERROR: <core> [core/pt.c:334]: fork_process(): init_child failed for process 5, pid 47269, "udp receiver child=4 sock=192.168.8.213:5060"

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47269]: CRITICAL: <core> [main.c:1611]: main_loop(): Cannot fork

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47252]: ALERT: <core> [main.c:740]: handle_sigs(): child process 47269 exited normally, status=255

Dec  6 07:29:31 siptest /usr/sbin/kamailio[47362]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 13

Redis and haproxy working fine (I test it by many attepts - echo ping|ncat localhost 6380)

At tcpdump all attemps from kamailio have:

*1

$4

PING

+PONG

*2

$6

SELECT

$1

0

+OK

my kamailio 5.0.4 config:

modparam("ndb_redis", "server", "name=redis;addr=127.0.0.1;port=6380")

my haproxy 1.5 config: