fix: check privilege while show dnode variables

source/dnode/mgmt/mgmt_dnode/src/dmHandle.c

@@ -247,16 +247,9 @@ int32_t dmAppendVariablesToBlock(SSDataBlock* pBlock, int32_t dnodeId) {
   return TSDB_CODE_SUCCESS;
 }
 
-
-
 int32_t dmProcessRetrieve(SDnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  int32_t    size = 0;
-  int32_t    rowsRead = 0;
-
-  if (strcmp(pMsg->info.conn.user, TSDB_DEFAULT_USER) != 0) {
-    terrno = TSDB_CODE_MND_NO_RIGHTS;
-    return -1;
-  }
+  int32_t size = 0;
+  int32_t rowsRead = 0;
 
   SRetrieveTableReq retrieveReq = {0};
   if (tDeserializeSRetrieveTableReq(pMsg->pCont, pMsg->contLen, &retrieveReq) != 0) {
@@ -264,6 +257,11 @@ int32_t dmProcessRetrieve(SDnodeMgmt *pMgmt, SRpcMsg *pMsg) {
     return -1;
   }
 
+  if (strcmp(retrieveReq.user, TSDB_DEFAULT_USER) != 0) {
+    terrno = TSDB_CODE_MND_NO_RIGHTS;
+    return -1;
+  }
+
   if (strcasecmp(retrieveReq.tb, TSDB_INS_TABLE_DNODE_VARIABLES)) {
     terrno = TSDB_CODE_INVALID_MSG;
     return -1;
@@ -314,7 +312,6 @@ int32_t dmProcessRetrieve(SDnodeMgmt *pMgmt, SRpcMsg *pMsg) {
   return TSDB_CODE_SUCCESS;
 }
 
-
 SArray *dmGetMsgHandles() {
   int32_t code = -1;
   SArray *pArray = taosArrayInit(16, sizeof(SMgmtHandle));

tests/script/tsim/stream/distributeInterval0.sim

@@ -10,6 +10,30 @@ sql create dnode $hostname2 port 7200
 
 system sh/exec.sh -n dnode2 -s start
 
+print ===== step1
+$x = 0
+step1:
+	$x = $x + 1
+	sleep 1000
+	if $x == 10 then
+	  print ====> dnode not ready!
+		return -1
+	endi
+sql show dnodes
+print ===> $data00 $data01 $data02 $data03 $data04 $data05
+print ===> $data10 $data11 $data12 $data13 $data14 $data15
+if $rows != 2 then
+  return -1
+endi
+if $data(1)[4] != ready then
+  goto step1
+endi
+if $data(2)[4] != ready then
+  goto step1
+endi
+
+print ===== step2
+
 sql create database test  vgroups 4;
 sql use test;
 sql create stable st(ts timestamp, a int, b int , c int, d double) tags(ta int,tb int,tc int);