diff --git a/src/dnode/src/dnodeShell.c b/src/dnode/src/dnodeShell.c
index 5daf61670655486ec629fb715d2b33ed6f32d4f2..4a1d337824e3a7879c651b8db3a3465e526c9299 100644
--- a/src/dnode/src/dnodeShell.c
+++ b/src/dnode/src/dnodeShell.c
@@ -154,15 +154,15 @@ static int dnodeRetrieveUserAuthInfo(char *user, char *spi, char *encrypt, char
   rpcMsg.contLen = sizeof(SDMAuthMsg);
   rpcMsg.msgType = TSDB_MSG_TYPE_DM_AUTH;
   
-  dDebug("user:%s, send auth msg to mnode", user);
+  dDebug("user:%s, send auth msg to mnodes", user);
   SRpcMsg rpcRsp = {0};
   dnodeSendMsgToDnodeRecv(&rpcMsg, &rpcRsp);
 
   if (rpcRsp.code != 0) {
-    dError("user:%s, auth msg received from mnode, error:%s", user, tstrerror(rpcRsp.code));
+    dError("user:%s, auth msg received from mnodes, error:%s", user, tstrerror(rpcRsp.code));
   } else {
     SDMAuthRsp *pRsp = rpcRsp.pCont;
-    dDebug("user:%s, auth msg received from mnode", user);
+    dDebug("user:%s, auth msg received from mnodes", user);
     memcpy(secret, pRsp->secret, TSDB_KEY_LEN);
     memcpy(ckey, pRsp->ckey, TSDB_KEY_LEN);
     *spi = pRsp->spi;
diff --git a/src/mnode/src/mnodeDb.c b/src/mnode/src/mnodeDb.c
index 8187cfd2651f55472f32a4e13aeec27b3e427421..54c049d242c504eee095120f800e023095b8eda6 100644
--- a/src/mnode/src/mnodeDb.c
+++ b/src/mnode/src/mnodeDb.c
@@ -242,6 +242,7 @@ static int32_t mnodeCheckDbCfg(SDbCfg *pCfg) {
     return TSDB_CODE_MND_INVALID_DB_OPTION;
   }
 
+#if 0
   if (pCfg->daysToKeep2 < TSDB_MIN_KEEP || pCfg->daysToKeep2 > pCfg->daysToKeep) {
     mError("invalid db option daysToKeep2:%d valid range: [%d, %d]", pCfg->daysToKeep, TSDB_MIN_KEEP, pCfg->daysToKeep);
     return TSDB_CODE_MND_INVALID_DB_OPTION;
@@ -251,6 +252,7 @@ static int32_t mnodeCheckDbCfg(SDbCfg *pCfg) {
     mError("invalid db option daysToKeep1:%d valid range: [%d, %d]", pCfg->daysToKeep1, TSDB_MIN_KEEP, pCfg->daysToKeep2);
     return TSDB_CODE_MND_INVALID_DB_OPTION;
   }
+#endif
 
   if (pCfg->maxRowsPerFileBlock < TSDB_MIN_MAX_ROW_FBLOCK || pCfg->maxRowsPerFileBlock > TSDB_MAX_MAX_ROW_FBLOCK) {
     mError("invalid db option maxRowsPerFileBlock:%d valid range: [%d, %d]", pCfg->maxRowsPerFileBlock,
diff --git a/src/rpc/src/rpcMain.c b/src/rpc/src/rpcMain.c
index 3aecd127ef8e7503c6db4670d349a4dd8dddeb4b..f59bf62ec504444c561107bb5b5dcf3ec6f8c000 100644
--- a/src/rpc/src/rpcMain.c
+++ b/src/rpc/src/rpcMain.c
@@ -709,21 +709,21 @@ static SRpcConn *rpcAllocateServerConn(SRpcInfo *pRpc, SRecvInfo *pRecv) {
       }
 
       if (terrno != 0) {
-        taosFreeId(pRpc->idPool, sid);   // sid shall be released
+        taosFreeId(pRpc->idPool, sid);  // sid shall be released
         pConn = NULL;
       }
     }
-  }      
+  }
 
   if (pConn) {
     if (pRecv->connType == RPC_CONN_UDPS && pRpc->numOfThreads > 1) {
       // UDP server, assign to new connection
-      pRpc->index = (pRpc->index+1) % pRpc->numOfThreads;
+      pRpc->index = (pRpc->index + 1) % pRpc->numOfThreads;
       pConn->localPort = (pRpc->localPort + pRpc->index);
     }
-  
+
     taosHashPut(pRpc->hash, hashstr, size, (char *)&pConn, POINTER_BYTES);
-    tDebug("%s %p server connection is allocated, uid:0x%x", pRpc->label, pConn, pConn->linkUid);
+    tDebug("%s %p server connection is allocated, uid:0x%x sid:%d key:%s", pRpc->label, pConn, pConn->linkUid, sid, hashstr);
   }
 
   return pConn;
diff --git a/tests/script/general/db/alter_option.sim b/tests/script/general/db/alter_option.sim
index 12a49c59b585e8d0da8cf53c85a4558cd43a9b65..49c75966ca12524e0ae80fcb58d7d5e710e78293 100644
--- a/tests/script/general/db/alter_option.sim
+++ b/tests/script/general/db/alter_option.sim
@@ -7,11 +7,10 @@ system sh/exec.sh -n dnode1 -s start
 
 sleep 3000
 sql connect
-print ============================ dnode1 start
 
+print ============= create database
 sql create database db cache 2 blocks 4 days 10 keep 20 minRows 300 maxRows 400 ctime 120 precision 'ms' comp 2 wal 1 replica 1
 sql show databases
-print $data00 $data01 $data02 $data03 $data04 $data05 $data06 $data07 $data08 $data09 
 if $data00 != db then 
   return -1
 endi
@@ -37,27 +36,240 @@ if $data09 != 4 then
   return -1
 endi
 
-print =============== step2
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
-return
-sql_error alter database db cache 256
-sql_error alter database db blocks 1
-sql_error alter database db days 10
-sql_error alter database db keep 10
-sql_error alter database db minRows 350
-sql_error alter database db minRows 550
-sql_error alter database db ctime 5000
-sql_error alter database db precision "us"
-sql_error alter database db comp 3
-sql_error alter database db wal 1
+print ============== step name
+sql_error alter database db name d1
+sql_error alter database db name d2
+
+print ============== step ntables
+sql_error alter database db ntables -1
+sql_error alter database db ntables 0
+sql_error alter database db ntables 1
+sql_error alter database db ntables 10
+
+print ============== step vgroups
+sql_error alter database db vgroups -1
+sql_error alter database db vgroups 0
+sql_error alter database db vgroups 1
+sql_error alter database db vgroups 10
+
+print ============== step replica
 sql_error alter database db replica 2
+sql_error alter database db replica 3
+sql_error alter database db replica 0
 
+sql alter database db replica 1
+sql show databases
+print replica $data4_db
+if $data4_db != 1 then 
+  return -1
+endi
 
-print ============== step3
-sql alter database db comp 1
-sql alter database db blocks 40
+print ============== step quorum
+sql show databases
+print quorum $data5_db
+if $data5_db != 1 then 
+  return -1
+endi
+
+sql alter database db quorum 1
+sql show databases
+print quorum $data5_db
+if $data5_db != 1 then 
+  return -1
+endi
+
+sql alter database db quorum 2
+sql show databases
+print quorum $data5_db
+if $data5_db != 2 then 
+  return -1
+endi
+
+sql alter database db quorum 3
+sql show databases
+print quorum $data5_db
+if $data5_db != 3 then 
+  return -1
+endi
+
+sql alter database db quorum 3
+sql alter database db quorum 2
+sql alter database db quorum 1
+sql_error alter database db quorum 0
+sql_error alter database db quorum 4
+sql_error alter database db quorum 5
+sql_error alter database db quorum -1
+
+print ============== step days
+sql_error alter database db days 0
+sql_error alter database db days 1
+sql_error alter database db days 2
+sql_error alter database db days 10
+sql_error alter database db days 50
+sql_error alter database db days 100
+
+print ============== step keep
+sql show databases
+print keep $data7_db
+if $data7_db != 20,20,20 then 
+  return -1
+endi
+
+sql alter database db keep 10
+sql show databases
+print keep $data7_db
+if $data7_db != 20,20,10 then 
+  return -1
+endi
+
+sql alter database db keep 20
+sql show databases
+print keep $data7_db
+if $data7_db != 20,20,20 then 
+  return -1
+endi
+
+sql alter database db keep 30
+sql show databases
+print keep $data7_db
+if $data7_db != 20,20,30 then 
+  return -1
+endi
+
+sql alter database db keep 40
 sql alter database db keep 30
+sql alter database db keep 20
+sql alter database db keep 10
+sql_error alter database db keep 9
+sql_error alter database db keep 1
+sql alter database db keep 0
+sql alter database db keep -1
+sql_error alter database db keep 365001
+
+print ============== step cache
+sql_error alter database db cache 60
+sql_error alter database db cache 50
+sql_error alter database db cache 20
+sql_error alter database db cache 3
+sql_error alter database db cache 129
+sql_error alter database db cache 300
+sql_error alter database db cache 0
+sql_error alter database db cache -1
+
+print ============== step blocks
+sql show databases
+print blocks $data9_db
+if $data9_db != 4 then 
+  return -1
+endi
+
+sql alter database db blocks 10
+sql show databases
+print blocks $data9_db
+if $data9_db != 10 then 
+  return -1
+endi
+
+sql alter database db blocks 20
+sql show databases
+print blocks $data9_db
+if $data9_db != 20 then 
+  return -1
+endi
+
+sql alter database db blocks 30
+sql show databases
+print blocks $data9_db
+if $data9_db != 30 then 
+  return -1
+endi
+
+sql alter database db blocks 40
+sql alter database db blocks 30
+sql alter database db blocks 20
+sql alter database db blocks 10
+sql_error alter database db blocks 2
+sql_error alter database db blocks 1
+sql alter database db blocks 0
+sql_error alter database db blocks -1
+sql_error alter database db blocks 10001
+
+print ============== step minrows
+sql_error alter database db minrows 1
+sql_error alter database db minrows 100
+sql_error alter database db minrows 1000
+
+print ============== step maxrows
+sql_error alter database db maxrows 1
+sql_error alter database db maxrows 100
+sql_error alter database db maxrows 1000
+
+print ============== step wallevel
+sql show databases
+print wallevel $data12_db
+if $data12_db != 1 then 
+  return -1
+endi
+
+sql alter database db wal 1
+sql show databases
+print wal $data12_db
+if $data12_db != 1 then 
+  return -1
+endi
+
+sql_error alter database db wal 2
+sql_error alter database db wal 0
+sql_error alter database db wal 3
+sql_error alter database db wal 4
+sql_error alter database db wal -1
+sql_error alter database db wal 1000
+
+print ============== step fsync
+sql_error alter database db fsync 2
+sql_error alter database db fsync 3
+sql_error alter database db fsync 4
+sql_error alter database db fsync -1
+sql_error alter database db fsync 1000
+
+print ============== step comp
+sql show databases
+print comp $data14_db
+if $data14_db != 2 then 
+  return -1
+endi
+
+sql alter database db comp 1
+sql show databases
+print comp $data14_db
+if $data14_db != 1 then 
+  return -1
+endi
+
+sql alter database db comp 2
+sql show databases
+print comp $data14_db
+if $data14_db != 2 then 
+  return -1
+endi
+
+sql alter database db comp 0
+sql show databases
+print comp $data14_db
+if $data14_db != 0 then 
+  return -1
+endi
+
+sql_error alter database db comp 3
+sql_error alter database db comp 4
+sql_error alter database db comp 5
+sql_error alter database db comp -1
+
 
+print ============== step precision
+sql_error alter database db prec 'us'
 
+print ============== step status
+sql_error alter database db status 'delete'
 
-#system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file