feat: allow user to reset root passwd

include/common/tglobal.h

@@ -83,6 +83,7 @@ extern int64_t tsVndCommitMaxIntervalMs;
 // mnode
 extern int64_t tsMndSdbWriteDelta;
 extern int64_t tsMndLogRetention;
+extern bool    tsMndSkipGrant;
 
 // monitor
 extern bool     tsEnableMonitor;

source/common/src/tglobal.c

@@ -72,6 +72,7 @@ int64_t tsVndCommitMaxIntervalMs = 600 * 1000;
 // mnode
 int64_t tsMndSdbWriteDelta = 200;
 int64_t tsMndLogRetention = 2000;
+bool    tsMndSkipGrant = false;
 
 // monitor
 bool     tsEnableMonitor = true;
@@ -489,6 +490,7 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
 
   if (cfgAddInt64(pCfg, "mndSdbWriteDelta", tsMndSdbWriteDelta, 20, 10000, 0) != 0) return -1;
   if (cfgAddInt64(pCfg, "mndLogRetention", tsMndLogRetention, 500, 10000, 0) != 0) return -1;
+  if (cfgAddBool(pCfg, "skipGrant", tsMndSkipGrant, 0) != 0) return -1;
 
   if (cfgAddBool(pCfg, "monitor", tsEnableMonitor, 0) != 0) return -1;
   if (cfgAddInt32(pCfg, "monitorInterval", tsMonitorInterval, 1, 200000, 0) != 0) return -1;
@@ -887,6 +889,7 @@ static int32_t taosSetServerCfg(SConfig *pCfg) {
 
   tsMndSdbWriteDelta = cfgGetItem(pCfg, "mndSdbWriteDelta")->i64;
   tsMndLogRetention = cfgGetItem(pCfg, "mndLogRetention")->i64;
+  tsMndSkipGrant = cfgGetItem(pCfg, "skipGrant")->bval;
 
   tsStartUdfd = cfgGetItem(pCfg, "udf")->bval;
   tstrncpy(tsUdfdResFuncs, cfgGetItem(pCfg, "udfdResFuncs")->str, sizeof(tsUdfdResFuncs));

source/dnode/mnode/impl/src/mndProfile.c

@@ -245,7 +245,7 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
     goto _OVER;
   }
 
-  if (strncmp(connReq.passwd, pUser->pass, TSDB_PASSWORD_LEN - 1) != 0) {
+  if (strncmp(connReq.passwd, pUser->pass, TSDB_PASSWORD_LEN - 1) != 0 && !tsMndSkipGrant) {
     mGError("user:%s, failed to login from %s since invalid pass, input:%s", pReq->info.conn.user, ip, connReq.passwd);
     code = TSDB_CODE_MND_AUTH_FAILURE;
     goto _OVER;