Re: ndb_redis behavior

I encountered the same issue, I'm not sure if it's a bug or if I made a mistake somewhere but we opted to just keep sending auth with each request as that's what we've been doing for years anyway.

      redis_cmd("write", "AUTH REDIS_PASS", "r");
      redis_cmd("write", "SET %s %s", "$fU", "$avp(an_avp)", "r");

Another option is to use a unix socket if the db is local.
________________________________
From: Володимир Іванець via sr-users <[email protected]>
Sent: Friday, October 10, 2025 9:03 AM
To: Kamailio (SER) - Users Mailing List <[email protected]>
Cc: Володимир Іванець <[email protected]>
Subject: [SR-Users] Re: ndb_redis behavior


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Kamailio version is 6.0.2.

Thank you!

пт, 10 жовт. 2025 р. о 15:55 Володимир Іванець <[email protected]<mailto:[email protected]>> пише:
Hello everyone!

Can someone please tell if this is expected behavior and I should remove authentication?

I have a Redis cluster with authentication enabled. Kamailio configuration is as follows:
modparam("ndb_redis", "server", "name=redis-cluster;addr=redis-redis-cluster;port=6379;pass=mypassword")
modparam("ndb_redis", "init_without_redis", 1)
modparam("ndb_redis", "connect_timeout", 1000)
modparam("ndb_redis", "cmd_timeout", 1000)
modparam("ndb_redis", "cluster", 1)
modparam("ndb_redis", "allow_dynamic_nodes", 1)
modparam("ndb_redis", "flush_on_reconnect", 0)

Kamailio stops request to Redis with "NOAUTH Authentication required" error when it tries to execute redis_cmd("redis-cluster", "HGET cnf:accounts:$AU password", "r");
 4(1630) DEBUG: ndb_redis [redis_client.c:439]: redisc_get_server(): Hash 1969359015 (redis-cluster)
 4(1630) DEBUG: ndb_redis [redis_client.c:442]: redisc_get_server(): Entry 1969359015 (redis-cluster)
 4(1630) DEBUG: ndb_redis [redis_client.c:446]: redisc_get_server(): Using entry 1969359015 (redis-cluster)
 4(1630) DEBUG: ndb_redis [redis_client.c:1033]: redisc_exec(): rsrv->ctxRedis = 0x55563cd13c30
 4(1630) DEBUG: ndb_redis [redis_client.c:1039]: redisc_exec(): rsrv->ctxRedis = 0x55563cd13c30
 4(1630) DEBUG: ndb_redis [redis_client.c:898]: check_cluster_reply(): Redis replied: "MOVED 1875 10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!aTVDOqq2zrpUtoBQ5lO840-dzwocBaaPLOLLm0U57XyJIgNfAGvrJZDGKtar-aOCXi2CJ-HvBb2ssz2s6bSbIgEm$>"
 4(1630) DEBUG: ndb_redis [redis_client.c:906]: check_cluster_reply(): Port "6379" [4] => 6379
 4(1630) DEBUG: ndb_redis [redis_client.c:916]: check_cluster_reply(): Host "10.42.0.36" [10]
 4(1630) DEBUG: ndb_redis [redis_client.c:927]: check_cluster_reply(): Name of new connection: 10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!aTVDOqq2zrpUtoBQ5lO840-dzwocBaaPLOLLm0U57XyJIgNfAGvrJZDGKtar-aOCXi2CJ-HvBb2ssz2s6bSbIgEm$>
 4(1630) DEBUG: ndb_redis [redis_client.c:439]: redisc_get_server(): Hash 2703334398 (10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!aTVDOqq2zrpUtoBQ5lO840-dzwocBaaPLOLLm0U57XyJIgNfAGvrJZDGKtar-aOCXi2CJ-HvBb2ssz2s6bSbIgEm$>)
 4(1630) DEBUG: ndb_redis [redis_client.c:442]: redisc_get_server(): Entry 1969359015 (redis-cluster)
 4(1630) DEBUG: ndb_redis [redis_client.c:452]: redisc_get_server(): No entry found.
 4(1630) DEBUG: ndb_redis [redis_client.c:439]: redisc_get_server(): Hash 2703334398 (10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!aTVDOqq2zrpUtoBQ5lO840-dzwocBaaPLOLLm0U57XyJIgNfAGvrJZDGKtar-aOCXi2CJ-HvBb2ssz2s6bSbIgEm$>)
 4(1630) DEBUG: ndb_redis [redis_client.c:442]: redisc_get_server(): Entry 2703334398 (10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!aTVDOqq2zrpUtoBQ5lO840-dzwocBaaPLOLLm0U57XyJIgNfAGvrJZDGKtar-aOCXi2CJ-HvBb2ssz2s6bSbIgEm$>)
 4(1630) DEBUG: ndb_redis [redis_client.c:446]: redisc_get_server(): Using entry 2703334398 (10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!aTVDOqq2zrpUtoBQ5lO840-dzwocBaaPLOLLm0U57XyJIgNfAGvrJZDGKtar-aOCXi2CJ-HvBb2ssz2s6bSbIgEm$>)
 4(1630) DEBUG: ndb_redis [redis_client.c:595]: redisc_reconnect_server(): rsrv->ctxRedis = (nil)
 4(1630) DEBUG: ndb_redis [redis_client.c:628]: redisc_reconnect_server(): rsrv->ctxRedis = 0x55563cd1bce0
 4(1630) DEBUG: ndb_redis [redis_client.c:969]: check_cluster_reply(): Connected to the new server with name: 10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!aTVDOqq2zrpUtoBQ5lO840-dzwocBaaPLOLLm0U57XyJIgNfAGvrJZDGKtar-aOCXi2CJ-HvBb2ssz2s6bSbIgEm$>
 4(1630) DEBUG: ndb_redis [redis_client.c:1084]: redisc_exec(): rsrv->ctxRedis = 0x55563cd1bce0
 4(1630) DEBUG: ndb_redis [redis_client.c:1090]: redisc_exec(): rsrv->ctxRedis = 0x55563cd1bce0
 4(1630) DEBUG: ndb_redis [redis_client.c:1118]: redisc_exec(): rpl->rplRedis->type:6
 4(1630) ERROR: ndb_redis [redis_client.c:1120]: redisc_exec(): Redis error:NOAUTH Authentication required.

Thank you!

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