Description

Hello, I am using ndb_redis module with TLS and redis-cluster. kamailio connects to the cluster endpoint when getting data, gets a 'MOVED' response and prints below error, it does not get data from the new host.

Troubleshooting

I have verified that I can connect to the cluster endpoint and the host in 'MOVED' using redis-cli on the system that kamailio is running on. I tried to connect to a self hosted cluster without TLS, it works as expected. It also works as expected with TLS and a single redis host.

Reproduction

Connect to a redis-cluster over TLS

Log Messages

2024-06-25T20:48:53.626708963Z 2024-06-25 20:48:53.626584  3(17) NOTICE: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:437]: redisc_get_server(): Hash 31807 (ra)
2024-06-25T20:48:53.626710053Z 2024-06-25 20:48:53.626600  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:440]: redisc_get_server(): Entry 31807 (ra)
2024-06-25T20:48:53.626711073Z 2024-06-25 20:48:53.626636  3(17) NOTICE: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:444]: redisc_get_server(): Using entry 31807 (ra)
2024-06-25T20:48:53.626712073Z 2024-06-25 20:48:53.626651  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:1030]: redisc_exec(): rsrv->ctxRedis = 0x556b4456dc20
2024-06-25T20:48:53.626713073Z 2024-06-25 20:48:53.626667  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:1036]: redisc_exec(): rsrv->ctxRedis = 0x556b4456dc20
2024-06-25T20:48:53.626810463Z 2024-06-25 20:48:53.626762  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:896]: check_cluster_reply(): Redis replied: "MOVED 3667 testdbredis-masked-hostname.00000000001110000000.130-characters-long.00000000000011111111100000000.availability-zone.amazonaws.com:6379"
2024-06-25T20:48:53.626811523Z 2024-06-25 20:48:53.626777  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:904]: check_cluster_reply(): Port "6379" [4] => 6379
2024-06-25T20:48:53.626816413Z 2024-06-25 20:48:53.626793  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:914]: check_cluster_reply(): Host "testdbredis-masked-hostname.00000000001110000000.130-characters-long.00000000000011111111100000000.availability-zone.amazonaws.com" [130]
2024-06-25T20:48:53.626846113Z 2024-06-25 20:48:53.626810  3(17) NOTICE: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:925]: check_cluster_reply(): Name of new connection: testdbredis-masked-hostname.00000000001110000000.130-characters-long.00000000000011111111100000000.
2024-06-25T20:48:53.626851443Z 2024-06-25 20:48:53.626827  3(17) NOTICE: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:437]: redisc_get_server(): Hash 968070864 (testdbredis-masked-hostname.00000000001110000000.130-characters-long.00000000000011111111100000000.)
2024-06-25T20:48:53.626896173Z 2024-06-25 20:48:53.626844  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:440]: redisc_get_server(): Entry 31807 (ra)
2024-06-25T20:48:53.626897503Z 2024-06-25 20:48:53.626861  3(17) NOTICE: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:450]: redisc_get_server(): No entry found.
2024-06-25T20:48:53.626955363Z 2024-06-25 20:48:53.626877  3(17) ERROR: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:947]: check_cluster_reply(): failed to print server spec string
2024-06-25T20:48:53.626957263Z 2024-06-25 20:48:53.626893  3(17) DEBUG: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:1115]: redisc_exec(): rpl->rplRedis->type:6
2024-06-25T20:48:53.626958443Z 2024-06-25 20:48:53.626908  3(17) ERROR: {Kam 192.168.20.4 503874790_98536808 1 753067 INVITE}ndb_redis [redis_client.c:1117]: redisc_exec(): Redis error:MOVED 3667 testdbredis-masked-hostname.00000000001110000000.130-characters-long.00000000000011111111100000000.availability-zone.amazonaws.com:6379

Additional Information

version: kamailio 5.8.1 (x86_64/linux) 384843
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: 384843 
compiled on 19:05:30 Jun 25 2024 with gcc 12.2.0


Debian 12

Kamailio config snippet

loadmodule "ndb_redis.so"
.
.
# ----- ndb_redis params -----
modparam("ndb_redis", "server", "name=ra;addr=cluster.testdbredis-masked-hostname.0000000011111111100000.availability-zone.amazonaws.com;port=6379;tls=1")
modparam("ndb_redis", "init_without_redis", 1)
modparam("ndb_redis", "cluster", 1)
modparam("ndb_redis", "allow_dynamic_nodes", 1)
modparam("ndb_redis", "ca_path", "/etc/ssl/certs")
modparam("ndb_redis", "debug", 1)
.
.
redis_cmd("ra", "HMGET usr_preferences:entry::%s:%s blocked", "$rU", "$fU", "r");
if($redis(r=>value[0]) == 1) {
.
}

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