Hello, No it is not a cluster, it's a standalone instance. I suspect that in the case of a cluster, the auth command is not getting re-sent after the MOVE is received.
Maybe you could workaround this by catching the error and resending both the auth and command to the server in the MOVE reply, but that would be a bit inefficient. I agree, a local proxy to handle auth and the cluster replies may be a better solution. ________________________________ From: Володимир Іванець <[email protected]> Sent: Saturday, October 11, 2025 11:21 AM To: John Petrini <[email protected]> Cc: Kamailio (SER) - Users Mailing List <[email protected]> Subject: Re: [SR-Users] Re: ndb_redis behavior CAUTION: This email originated from outside the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hello John! "write" server from your example, is it a cluster? Just tried it on my system and it didn't work. It looks like Redis proxy should solve the problem. redis_cmd("redis-cluster", "AUTH passw0rd", "r"); redis_cmd("redis-cluster", "HGET cnf:accounts:$AU password", "r"); 3(2561) DEBUG: ndb_redis [redis_client.c:439]: redisc_get_server(): Hash 1969359015 (redis-cluster) 3(2561) DEBUG: ndb_redis [redis_client.c:442]: redisc_get_server(): Entry 1969359015 (redis-cluster) 3(2561) DEBUG: ndb_redis [redis_client.c:446]: redisc_get_server(): Using entry 1969359015 (redis-cluster) 3(2561) DEBUG: ndb_redis [redis_client.c:1033]: redisc_exec(): rsrv->ctxRedis = 0x55561cebfc30 3(2561) DEBUG: ndb_redis [redis_client.c:1039]: redisc_exec(): rsrv->ctxRedis = 0x55561cebfc30 3(2561) DEBUG: ndb_redis [redis_client.c:898]: check_cluster_reply(): Redis replied: "OK" 3(2561) DEBUG: ndb_redis [redis_client.c:1118]: redisc_exec(): rpl->rplRedis->type:5 3(2561) DEBUG: ndb_redis [redis_client.c:1132]: redisc_exec(): rsrv->ctxRedis = 0x55561cebfc30 3(2561) DEBUG: ndb_redis [redis_client.c:439]: redisc_get_server(): Hash 1969359015 (redis-cluster) 3(2561) DEBUG: ndb_redis [redis_client.c:442]: redisc_get_server(): Entry 1969359015 (redis-cluster) 3(2561) DEBUG: ndb_redis [redis_client.c:446]: redisc_get_server(): Using entry 1969359015 (redis-cluster) 3(2561) DEBUG: ndb_redis [redis_client.c:1033]: redisc_exec(): rsrv->ctxRedis = 0x55561cebfc30 3(2561) DEBUG: ndb_redis [redis_client.c:1039]: redisc_exec(): rsrv->ctxRedis = 0x55561cebfc30 3(2561) DEBUG: ndb_redis [redis_client.c:898]: check_cluster_reply(): Redis replied: "MOVED 1875 10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22bL1e1wKg$>" 3(2561) DEBUG: ndb_redis [redis_client.c:906]: check_cluster_reply(): Port "6379" [4] => 6379 3(2561) DEBUG: ndb_redis [redis_client.c:916]: check_cluster_reply(): Host "10.42.0.36" [10] 3(2561) 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!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22bL1e1wKg$> 3(2561) DEBUG: ndb_redis [redis_client.c:439]: redisc_get_server(): Hash 2703334398 (10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22bL1e1wKg$>) 3(2561) DEBUG: ndb_redis [redis_client.c:442]: redisc_get_server(): Entry 1969359015 (redis-cluster) 3(2561) DEBUG: ndb_redis [redis_client.c:452]: redisc_get_server(): No entry found. 3(2561) 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!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22bL1e1wKg$>) 3(2561) DEBUG: ndb_redis [redis_client.c:442]: redisc_get_server(): Entry 2703334398 (10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22bL1e1wKg$>) 3(2561) 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!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22bL1e1wKg$>) 3(2561) DEBUG: ndb_redis [redis_client.c:595]: redisc_reconnect_server(): rsrv->ctxRedis = (nil) 3(2561) DEBUG: ndb_redis [redis_client.c:628]: redisc_reconnect_server(): rsrv->ctxRedis = 0x55561cec5260 3(2561) DEBUG: ndb_redis [redis_client.c:969]: check_cluster_reply(): Connected to the new server with name: 10.42.0.36:6379<https://urldefense.com/v3/__http://10.42.0.36:6379__;!!KWzduNI!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22bL1e1wKg$> 3(2561) DEBUG: ndb_redis [redis_client.c:1084]: redisc_exec(): rsrv->ctxRedis = 0x55561cec5260 3(2561) DEBUG: ndb_redis [redis_client.c:1090]: redisc_exec(): rsrv->ctxRedis = 0x55561cec5260 3(2561) DEBUG: ndb_redis [redis_client.c:1118]: redisc_exec(): rpl->rplRedis->type:6 3(2561) ERROR: ndb_redis [redis_client.c:1120]: redisc_exec(): Redis error:NOAUTH Authentication required. Thank you! пт, 10 жовт. 2025 р. о 16:43 Володимир Іванець <[email protected]<mailto:[email protected]>> пише: Hello John! It appears to be an expected behavior. Module only authenticates the first time it connects. Found similar topic here: https://github.com/kamailio/kamailio/issues/3654<https://urldefense.com/v3/__https://github.com/kamailio/kamailio/issues/3654__;!!KWzduNI!evMPnb5H_96jFoq9S8oPqOkH48P8PVZid7njjfc-Epfkt81HVwezq9u2dvYJ1WQVU3C2KhgneU9P1viZZ22b6tjUtRM$> Regardless, your approach will work perfect for me. Thank you for sharing it! пт, 10 жовт. 2025 р., 16:37 користувач John Petrini <[email protected]<mailto:[email protected]>> пише: I encountered the same issue, I'm not sure if it's a bug or if I made a mistake somewhere but we opted to just keep sending auth with each request as that's what we've been doing for years anyway. redis_cmd("write", "AUTH REDIS_PASS", "r"); redis_cmd("write", "SET %s %s", "$fU", "$avp(an_avp)", "r"); Another option is to use a unix socket if the db is local. ________________________________ From: Володимир Іванець via sr-users <[email protected]<mailto:[email protected]>> Sent: Friday, October 10, 2025 9:03 AM To: Kamailio (SER) - Users Mailing List <[email protected]<mailto:[email protected]>> Cc: Володимир Іванець <[email protected]<mailto:[email protected]>> Subject: [SR-Users] Re: ndb_redis behavior CAUTION: This email originated from outside the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Kamailio version is 6.0.2. Thank you! пт, 10 жовт. 2025 р. о 15:55 Володимир Іванець <[email protected]<mailto:[email protected]>> пише: Hello everyone! Can someone please tell if this is expected behavior and I should remove authentication? I have a Redis cluster with authentication enabled. Kamailio configuration is as follows: modparam("ndb_redis", "server", "name=redis-cluster;addr=redis-redis-cluster;port=6379;pass=mypassword") modparam("ndb_redis", "init_without_redis", 1) modparam("ndb_redis", "connect_timeout", 1000) modparam("ndb_redis", "cmd_timeout", 1000) modparam("ndb_redis", "cluster", 1) modparam("ndb_redis", "allow_dynamic_nodes", 1) modparam("ndb_redis", "flush_on_reconnect", 0) Kamailio stops request to Redis with "NOAUTH Authentication required" error when it tries to execute redis_cmd("redis-cluster", "HGET cnf:accounts:$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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