Hi, What is the Kamailio version you are using? Your issue looks like the one described in this issue: https://github.com/kamailio/kamailio/issues/2461 If you cannot upgrade Kamailio to a fixed version, you could use Redis sentinel instead of a Redis cluster. Julien De : sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; au nom de Maharaja Azhagiah &lt;er.maharaja(a)gmail.com&gt; Répondre à : &quot;sr-users-bounces(a)lists.kamailio.org&quot; &lt;sr-users-bounces(a)lists.kamailio.org&gt; Date : mercredi 2 mars 2022 à 02:35 À : &quot;sr-users(a)lists.kamailio.org&quot; &lt;sr-users(a)lists.kamailio.org&gt; Objet : [SR-Users] ndb_redis - redis-cluster error Hi All, I am new to Kamailio and testing location server using kamailio and redis-cluster. My setup is simple: All SIP REGISTER messages will be forwarded to this location-server. The server checks for AUTH and then needs to save the usrloc in redis-cluster. I have hiredis and hiredis-cluster libraries installed I am using ndb_redis to support redis-cluster with below configuration: modparam("ndb_redis", "server", "name=172.17.0.3:7000;addr=172.17.0.3;port=7000") modparam("ndb_redis", "server", "name=172.17.0.4:7001;addr=172.17.0.4;port=7001") modparam("ndb_redis", "server", "name=172.17.0.5:7002;addr=172.17.0.5;port=7002") modparam("ndb_redis", "server", "name=172.17.0.6:7003;addr=172.17.0.6;port=7003") modparam("ndb_redis", "server", "name=172.17.0.7:7004;addr=172.17.0.7;port=7004") modparam("ndb_redis", "server", "name=172.17.0.8:7005;addr=172.17.0.8;port=7005") modparam("ndb_redis", "cluster", 1) If SIP method is REGISTER, Kamailio sends redis_cmd to store as below: redis_cmd("172.17.0.3:7000<http://172.17.0.3:7000>", "sadd %s %s", "location:usrdom::437780082:mazhagiah.sip.zang.io<http://mazhagiah.sip.zang.io>", "location:entry::$xavp(ulrcd=>ruid)", "r"); However, redis-cluster replies with MOVED message, but kamailio / ndb_redis throughs error as below: 0(3915) DEBUG: ndb_redis [redis_client.c:391]: redisc_get_server(): Hash 2590462363 (172.17.0.3:7000<http://172.17.0.3:7000>) 0(3915) DEBUG: ndb_redis [redis_client.c:395]: redisc_get_server(): Entry 2591109923 (172.17.0.8:7005<http://172.17.0.8:7005>) 0(3915) DEBUG: ndb_redis [redis_client.c:395]: redisc_get_server(): Entry 2590232843 (172.17.0.7:7004<http://172.17.0.7:7004>) 0(3915) DEBUG: ndb_redis [redis_client.c:395]: redisc_get_server(): Entry 2590175467 (172.17.0.6:7003<http://172.17.0.6:7003>) 0(3915) DEBUG: ndb_redis [redis_client.c:395]: redisc_get_server(): Entry 2590347603 (172.17.0.5:7002<http://172.17.0.5:7002>) 0(3915) DEBUG: ndb_redis [redis_client.c:395]: redisc_get_server(): Entry 2590290227 (172.17.0.4:7001<http://172.17.0.4:7001>) 0(3915) DEBUG: ndb_redis [redis_client.c:395]: redisc_get_server(): Entry 2590462363 (172.17.0.3:7000<http://172.17.0.3:7000>) 0(3915) DEBUG: ndb_redis [redis_client.c:896]: redisc_exec(): rsrv->ctxRedis = 0x558e4d739210 0(3915) DEBUG: ndb_redis [redis_client.c:903]: redisc_exec(): rsrv->ctxRedis = 0x558e4d739210 0(3915) DEBUG: ndb_redis [redis_client.c:957]: redisc_exec(): rpl->rplRedis->type:6 0(3915) ERROR: ndb_redis [redis_client.c:959]: redisc_exec(): Redis error:MOVED 10082 172.17.0.4:7001<http://172.17.0.4:7001> 0(3915) DEBUG: <core> [sruid.c:182]: sruid_next(): new sruid is [uloc-621e8438-f4b-b] (11 / 19) 0(3915) DEBUG: registrar [save.c:410]: pack_ci(): generated ruid is: uloc-621e8438-f4b-b 0(3915) DEBUG: <core> [sruid.c:182]: sruid_next(): new sruid is [uloc-621e8438-f4b-c] (12 / 19) Please help if I am missing anything with my configuration or library. Thanks Raja