diff --git a/src/dnode/src/dnodeMain.c b/src/dnode/src/dnodeMain.c
index cf633502c14ddc3f85f8e8f36059c5e835d402c0..61b11579bf8da901697df3202c872caf7d6c7371 100644
--- a/src/dnode/src/dnodeMain.c
+++ b/src/dnode/src/dnodeMain.c
@@ -303,6 +303,8 @@ static int32_t dnodeInitStorage() {
 
   dnodeCheckDataDirOpenned(tsDnodeDir);
 
+  taosGetDisk();
+  taosPrintDiskInfo();
   dInfo("dnode storage is initialized at %s", tsDnodeDir);
   return 0;
 }
diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 865224d2c3f513edcd8308731baf096cc697ea83..33ee2a9bc2fc2df5b2b8074e4acdd78449603ffa 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -6004,6 +6004,12 @@ static void* syncWriteProgressive(threadInfo *pThreadInfo) {
       verbosePrint("%s() LN%d: tid=%d seq=%"PRId64" tableName=%s\n",
              __func__, __LINE__,
              pThreadInfo->threadID, tableSeq, tableName);
+      if (0 == strlen(tableName)) {
+        errorPrint("[%d] %s() LN%d, getTableName return null\n",
+            pThreadInfo->threadID, __func__, __LINE__);
+        free(pThreadInfo->buffer);
+        return NULL;
+      }
 
       int64_t remainderBufLen = maxSqlLen;
       char *pstr = pThreadInfo->buffer;
diff --git a/src/kit/taosdump/taosdump.c b/src/kit/taosdump/taosdump.c
index 15db83297c491c43ded56e23c9c6033600b2d2f7..165bbdf990babde49f3dd1b610360b0b13ac9dfe 100644
--- a/src/kit/taosdump/taosdump.c
+++ b/src/kit/taosdump/taosdump.c
@@ -1858,13 +1858,13 @@ int taosDumpTableData(FILE *fp, char *tbname, struct arguments *arguments, TAOS*
           converStringToReadable((char *)row[col], length[col], tbuf, COMMAND_SIZE);
           //pstr = stpcpy(pstr, tbuf);
           //*(pstr++) = '\'';
-          pstr += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
+          curr_sqlstr_len += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
           break;
         }
         case TSDB_DATA_TYPE_NCHAR: {
           char tbuf[COMMAND_SIZE] = {0};
           convertNCharToReadable((char *)row[col], length[col], tbuf, COMMAND_SIZE);
-          pstr += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
+          curr_sqlstr_len += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
           break;
         }
         case TSDB_DATA_TYPE_TIMESTAMP:
@@ -1897,7 +1897,8 @@ int taosDumpTableData(FILE *fp, char *tbname, struct arguments *arguments, TAOS*
 
     total_sqlstr_len += curr_sqlstr_len;
 
-    if ((count >= arguments->data_batch) || (sql_buf_len - total_sqlstr_len < TSDB_MAX_BYTES_PER_ROW)) {
+    if ((count >= arguments->data_batch)
+            || (sql_buf_len - total_sqlstr_len < TSDB_MAX_BYTES_PER_ROW)) {
       fprintf(fp, ";\n");
       count = 0;
     } //else {
@@ -1905,6 +1906,8 @@ int taosDumpTableData(FILE *fp, char *tbname, struct arguments *arguments, TAOS*
     //}
   }
 
+  printf("total_sqlstr_len: %d\n", total_sqlstr_len);
+
   fprintf(fp, "\n");
   atomic_add_fetch_64(&totalDumpOutRows, totalRows);
 
diff --git a/src/mnode/src/mnodeDnode.c b/src/mnode/src/mnodeDnode.c
index a087b076a59e8b7f849d6d97b7f8e4e6283f7756..b3c2c99a67fb85a395bb8024b7e39674eb96c8c1 100644
--- a/src/mnode/src/mnodeDnode.c
+++ b/src/mnode/src/mnodeDnode.c
@@ -101,6 +101,8 @@ static int32_t mnodeDnodeActionInsert(SSdbRow *pRow) {
     pDnode->offlineReason = TAOS_DN_OFF_STATUS_NOT_RECEIVED;
   }
 
+  pDnode->customScore = 0;
+
   dnodeUpdateEp(pDnode->dnodeId, pDnode->dnodeEp, pDnode->dnodeFqdn, &pDnode->dnodePort);
   mnodeUpdateDnodeEps();
 
diff --git a/src/os/inc/osSysinfo.h b/src/os/inc/osSysinfo.h
index d136f9664c9d5c00dc68382eaf3ebc6e97013cd0..5f0bc2950c1a7b0e9d2caf57c19f1913c7035980 100644
--- a/src/os/inc/osSysinfo.h
+++ b/src/os/inc/osSysinfo.h
@@ -27,18 +27,20 @@ typedef struct {
 } SysDiskSize;
 
 int32_t taosGetDiskSize(char *dataDir, SysDiskSize *diskSize);
-void    taosGetSystemInfo();
-bool    taosGetProcIO(float *readKB, float *writeKB);
-bool    taosGetBandSpeed(float *bandSpeedKb);
-void    taosGetDisk();
-bool    taosGetCpuUsage(float *sysCpuUsage, float *procCpuUsage);
-bool    taosGetProcMemory(float *memoryUsedMB);
-bool    taosGetSysMemory(float *memoryUsedMB);
-void    taosPrintOsInfo();
-int     taosSystem(const char *cmd);
-void    taosKillSystem();
-bool    taosGetSystemUid(char *uid);
-char *  taosGetCmdlineByPID(int pid);
+
+void taosGetSystemInfo();
+bool taosGetProcIO(float *readKB, float *writeKB);
+bool taosGetBandSpeed(float *bandSpeedKb);
+void taosGetDisk();
+bool taosGetCpuUsage(float *sysCpuUsage, float *procCpuUsage) ;
+bool taosGetProcMemory(float *memoryUsedMB) ;
+bool taosGetSysMemory(float *memoryUsedMB);
+void taosPrintOsInfo();
+void taosPrintDiskInfo();
+int  taosSystem(const char * cmd) ;
+void taosKillSystem();
+bool taosGetSystemUid(char *uid);
+char *taosGetCmdlineByPID(int pid);
 
 void taosSetCoreDump();
 
diff --git a/src/os/src/darwin/dwSysInfo.c b/src/os/src/darwin/dwSysInfo.c
index b3c9bd528e9459a8d5798a2ff6ca4a1664503a90..10e0acc1309d80154a42b6cc948a8afb7a04b668 100644
--- a/src/os/src/darwin/dwSysInfo.c
+++ b/src/os/src/darwin/dwSysInfo.c
@@ -136,9 +136,6 @@ void taosPrintOsInfo() {
   // uInfo(" os openMax:             %" PRId64, tsOpenMax);
   // uInfo(" os streamMax:           %" PRId64, tsStreamMax);
   uInfo(" os numOfCores:          %d", tsNumOfCores);
-  uInfo(" os totalDisk:           %f(GB)", tsTotalDataDirGB);
-  uInfo(" os usedDisk:            %f(GB)", tsUsedDataDirGB);
-  uInfo(" os availDisk:           %f(GB)", tsAvailDataDirGB);
   uInfo(" os totalMemory:         %d(MB)", tsTotalMemoryMB);
 
   struct utsname buf;
@@ -154,6 +151,14 @@ void taosPrintOsInfo() {
   uInfo("==================================");
 }
 
+void taosPrintDiskInfo() {
+  uInfo("==================================");
+  uInfo(" os totalDisk:           %f(GB)", tsTotalDataDirGB);
+  uInfo(" os usedDisk:            %f(GB)", tsUsedDataDirGB);
+  uInfo(" os availDisk:           %f(GB)", tsAvailDataDirGB);
+  uInfo("==================================");
+}
+
 void taosKillSystem() {
   uError("function taosKillSystem, exit!");
   exit(0);
diff --git a/src/os/src/detail/osSysinfo.c b/src/os/src/detail/osSysinfo.c
index d0b284e1cab6717ab7b589557e4545ea744efa33..891dccaf9779016065013d4f59580026fb98352a 100644
--- a/src/os/src/detail/osSysinfo.c
+++ b/src/os/src/detail/osSysinfo.c
@@ -506,9 +506,6 @@ void taosPrintOsInfo() {
   uInfo(" os openMax:             %" PRId64, tsOpenMax);
   uInfo(" os streamMax:           %" PRId64, tsStreamMax);
   uInfo(" os numOfCores:          %d", tsNumOfCores);
-  uInfo(" os totalDisk:           %f(GB)", tsTotalDataDirGB);
-  uInfo(" os usedDisk:            %f(GB)", tsUsedDataDirGB);
-  uInfo(" os availDisk:           %f(GB)", tsAvailDataDirGB);
   uInfo(" os totalMemory:         %d(MB)", tsTotalMemoryMB);
 
   struct utsname buf;
@@ -523,6 +520,14 @@ void taosPrintOsInfo() {
   uInfo(" os machine:             %s", buf.machine);
 }
 
+void taosPrintDiskInfo() {
+  uInfo("==================================");
+  uInfo(" os totalDisk:           %f(GB)", tsTotalDataDirGB);
+  uInfo(" os usedDisk:            %f(GB)", tsUsedDataDirGB);
+  uInfo(" os availDisk:           %f(GB)", tsAvailDataDirGB);
+  uInfo("==================================");
+}
+
 void taosKillSystem() {
   // SIGINT
   uInfo("taosd will shut down soon");
diff --git a/src/os/src/windows/wSysinfo.c b/src/os/src/windows/wSysinfo.c
index 8a81e3079a17e013372ebd7de0facb6b49a99c7b..72793a1049506fed0fce2d1a04c576097fec9fba 100644
--- a/src/os/src/windows/wSysinfo.c
+++ b/src/os/src/windows/wSysinfo.c
@@ -205,10 +205,15 @@ void taosGetSystemInfo() {
 
 void taosPrintOsInfo() {
   uInfo(" os numOfCores:          %d", tsNumOfCores);
+  uInfo(" os totalMemory:         %d(MB)", tsTotalMemoryMB);
+  uInfo("==================================");
+}
+
+void taosPrintDiskInfo() {
+  uInfo("==================================");
   uInfo(" os totalDisk:           %f(GB)", tsTotalDataDirGB);
   uInfo(" os usedDisk:            %f(GB)", tsUsedDataDirGB);
   uInfo(" os availDisk:           %f(GB)", tsAvailDataDirGB);
-  uInfo(" os totalMemory:         %d(MB)", tsTotalMemoryMB);
   uInfo("==================================");
 }
 
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 75c0b0d22a42097de588dea4abc02f3f494ee195..8b83fd94a4b2a176bafcaf729f979b750cf31655 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -7289,11 +7289,16 @@ int32_t initQInfo(STsBufInfo* pTsBufInfo, void* tsdb, void* sourceOptr, SQInfo*
   SQueryAttr *pQueryAttr = pRuntimeEnv->pQueryAttr;
 
   STSBuf *pTsBuf = NULL;
-  if (pTsBufInfo->tsLen > 0) { // open new file to save the result
-    char *tsBlock = start + pTsBufInfo->tsOffset;
+
+  if (pTsBufInfo->tsLen > 0) {  // open new file to save the result
+    char* tsBlock = start + pTsBufInfo->tsOffset;
     pTsBuf = tsBufCreateFromCompBlocks(tsBlock, pTsBufInfo->tsNumOfBlocks, pTsBufInfo->tsLen, pTsBufInfo->tsOrder,
-        pQueryAttr->vgId);
+                                       pQueryAttr->vgId);
 
+    if (pTsBuf == NULL) {
+      code = TSDB_CODE_QRY_NO_DISKSPACE;
+      goto _error;
+    }
     tsBufResetPos(pTsBuf);
     bool ret = tsBufNextPos(pTsBuf);
     UNUSED(ret);
diff --git a/src/query/src/qTsbuf.c b/src/query/src/qTsbuf.c
index cf67e37cf2e47c0d305c8f04766d51f71989daf5..27c877fafa8640ceb4c3b380d32784f188c4a5f8 100644
--- a/src/query/src/qTsbuf.c
+++ b/src/query/src/qTsbuf.c
@@ -2,6 +2,7 @@
 #include "taoserror.h"
 #include "tscompression.h"
 #include "tutil.h"
+#include "queryLog.h"
 
 static int32_t getDataStartOffset();
 static void TSBufUpdateGroupInfo(STSBuf* pTSBuf, int32_t index, STSGroupBlockInfo* pBlockInfo);
@@ -633,10 +634,15 @@ int32_t STSBufUpdateHeader(STSBuf* pTSBuf, STSBufFileHeader* pHeader) {
 
   int32_t r = fseek(pTSBuf->f, 0, SEEK_SET);
   if (r != 0) {
+    qError("fseek failed, errno:%d", errno);
+    return -1;
+  }
+
+  size_t ws = fwrite(pHeader, sizeof(STSBufFileHeader), 1, pTSBuf->f);
+  if (ws != 1) {    
+    qError("ts update header fwrite failed, size:%d, expected size:%d", (int32_t)ws, (int32_t)sizeof(STSBufFileHeader));
     return -1;
   }
-  
-  fwrite(pHeader, sizeof(STSBufFileHeader), 1, pTSBuf->f);
   return 0;
 }
 
@@ -853,9 +859,17 @@ STSBuf* tsBufCreateFromCompBlocks(const char* pData, int32_t numOfBlocks, int32_
   TSBufUpdateGroupInfo(pTSBuf, pTSBuf->numOfGroups - 1, pBlockInfo);
   
   int32_t ret = fseek(pTSBuf->f, pBlockInfo->offset, SEEK_SET);
-  UNUSED(ret);
+  if (ret == -1) {
+    qError("fseek failed, errno:%d", errno);
+    tsBufDestroy(pTSBuf);
+    return NULL;
+  }
   size_t sz = fwrite((void*)pData, 1, len, pTSBuf->f);
-  UNUSED(sz);
+  if (sz != len) {
+    qError("ts data fwrite failed, write size:%d, expected size:%d", (int32_t)sz, len);
+    tsBufDestroy(pTSBuf);
+    return NULL;
+  }
   pTSBuf->fileSize += len;
   
   pTSBuf->tsOrder = order;
@@ -863,9 +877,16 @@ STSBuf* tsBufCreateFromCompBlocks(const char* pData, int32_t numOfBlocks, int32_
   
   STSBufFileHeader header = {
       .magic = TS_COMP_FILE_MAGIC, .numOfGroup = pTSBuf->numOfGroups, .tsOrder = pTSBuf->tsOrder};
-  STSBufUpdateHeader(pTSBuf, &header);
+  if (STSBufUpdateHeader(pTSBuf, &header) < 0) {
+    tsBufDestroy(pTSBuf);
+    return NULL;
+  }
   
-  taosFsync(fileno(pTSBuf->f));
+  if (taosFsync(fileno(pTSBuf->f)) == -1) {
+    qError("fsync failed, errno:%d", errno);
+    tsBufDestroy(pTSBuf);
+    return NULL;
+  }
   
   return pTSBuf;
 }