diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index de9c11fb89..00b220da57 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -1025,7 +1025,7 @@ typedef struct {
   int64_t     clusterId;
   int64_t     rebootTime;
   int64_t     updateTime;
-  int32_t     numOfCores;
+  float       numOfCores;
   int32_t     numOfSupportVnodes;
   int64_t     memTotal;
   int64_t     memAvail;
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 22dd8d7de0..c07a7d2141 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -947,7 +947,7 @@ int32_t tSerializeSStatusReq(void *buf, int32_t bufLen, SStatusReq *pReq) {
   if (tEncodeI64(&encoder, pReq->clusterId) < 0) return -1;
   if (tEncodeI64(&encoder, pReq->rebootTime) < 0) return -1;
   if (tEncodeI64(&encoder, pReq->updateTime) < 0) return -1;
-  if (tEncodeI32(&encoder, pReq->numOfCores) < 0) return -1;
+  if (tEncodeFloat(&encoder, pReq->numOfCores) < 0) return -1;
   if (tEncodeI32(&encoder, pReq->numOfSupportVnodes) < 0) return -1;
   if (tEncodeI64(&encoder, pReq->memTotal) < 0) return -1;
   if (tEncodeI64(&encoder, pReq->memAvail) < 0) return -1;
@@ -1010,7 +1010,7 @@ int32_t tDeserializeSStatusReq(void *buf, int32_t bufLen, SStatusReq *pReq) {
   if (tDecodeI64(&decoder, &pReq->clusterId) < 0) return -1;
   if (tDecodeI64(&decoder, &pReq->rebootTime) < 0) return -1;
   if (tDecodeI64(&decoder, &pReq->updateTime) < 0) return -1;
-  if (tDecodeI32(&decoder, &pReq->numOfCores) < 0) return -1;
+  if (tDecodeFloat(&decoder, &pReq->numOfCores) < 0) return -1;
   if (tDecodeI32(&decoder, &pReq->numOfSupportVnodes) < 0) return -1;
   if (tDecodeI64(&decoder, &pReq->memTotal) < 0) return -1;
   if (tDecodeI64(&decoder, &pReq->memAvail) < 0) return -1;
diff --git a/source/dnode/mnode/impl/inc/mndDef.h b/source/dnode/mnode/impl/inc/mndDef.h
index ee0c5cedf3..f39a848992 100644
--- a/source/dnode/mnode/impl/inc/mndDef.h
+++ b/source/dnode/mnode/impl/inc/mndDef.h
@@ -148,7 +148,7 @@ typedef struct {
   int32_t    accessTimes;
   int32_t    numOfVnodes;
   int32_t    numOfSupportVnodes;
-  int32_t    numOfCores;
+  float      numOfCores;
   int64_t    memTotal;
   int64_t    memAvail;
   int64_t    memUsed;
diff --git a/source/dnode/mnode/impl/src/mndDb.c b/source/dnode/mnode/impl/src/mndDb.c
index 3bcd80a8b2..6770cd578a 100644
--- a/source/dnode/mnode/impl/src/mndDb.c
+++ b/source/dnode/mnode/impl/src/mndDb.c
@@ -628,7 +628,7 @@ static int32_t mndSetDbCfgFromAlterDbReq(SDbObj *pDb, SAlterDbReq *pAlter) {
     terrno = 0;
   }
 
-  if (pAlter->lastRowMem >= 0 && pAlter->lastRowMem != pDb->cfg.lastRowMem) {
+  if (pAlter->lastRowMem > 0 && pAlter->lastRowMem != pDb->cfg.lastRowMem) {
     pDb->cfg.lastRowMem = pAlter->lastRowMem;
     terrno = 0;
   }
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 5651412566..63d0932b3d 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -3138,6 +3138,7 @@ static void buildAlterDbReq(STranslateContext* pCxt, SAlterDatabaseStmt* pStmt,
   pReq->buffer = pStmt->pOptions->buffer;
   pReq->pageSize = -1;
   pReq->pages = pStmt->pOptions->pages;
+  pReq->lastRowMem = -1;
   pReq->daysPerFile = -1;
   pReq->daysToKeep0 = pStmt->pOptions->keep[0];
   pReq->daysToKeep1 = pStmt->pOptions->keep[1];