diff --git a/examples/rust/wrapper.h b/examples/rust/wrapper.h
new file mode 100644
index 0000000000..78857597a9
--- /dev/null
+++ b/examples/rust/wrapper.h
@@ -0,0 +1 @@
+#include<taos.h>
diff --git a/source/client/inc/clientSml.h b/source/client/inc/clientSml.h
index d8d41d8be6..92896e6f23 100644
--- a/source/client/inc/clientSml.h
+++ b/source/client/inc/clientSml.h
@@ -70,7 +70,7 @@ extern "C" {
 #define VALUE_LEN 6
 
 #define OTD_JSON_FIELDS_NUM     4
-#define MAX_RETRY_TIMES 5
+#define MAX_RETRY_TIMES 100
 typedef TSDB_SML_PROTOCOL_TYPE SMLProtocolType;
 
 typedef enum {
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index e3e20ee85d..de08ba66cc 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -543,7 +543,7 @@ void taos_init_imp(void) {
 
   if (taosCreateLog("taoslog", 10, configDir, NULL, NULL, NULL, NULL, 1) != 0) {
     // ignore create log failed, only print
-    printf(" WARING: Create taoslog failed. configDir=%s\n", configDir);
+    printf(" WARING: Create taoslog failed:%s. configDir=%s\n", strerror(errno), configDir);
   }
 
   if (taosInitCfg(configDir, NULL, NULL, NULL, NULL, 1) != 0) {
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index 7f58b579fa..1719759822 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -750,6 +750,7 @@ end:
 }
 
 static int32_t smlModifyDBSchemas(SSmlHandle *info) {
+  uDebug("SML:0x%" PRIx64 " smlModifyDBSchemas start, format:%d, needModifySchema:%d", info->id, info->dataFormat, info->needModifySchema);
   if (info->dataFormat && !info->needModifySchema) {
     return TSDB_CODE_SUCCESS;
   }
@@ -779,6 +780,7 @@ static int32_t smlModifyDBSchemas(SSmlHandle *info) {
     code = catalogGetSTableMeta(info->pCatalog, &conn, &pName, &pTableMeta);
 
     if (code == TSDB_CODE_PAR_TABLE_NOT_EXIST || code == TSDB_CODE_MND_STB_NOT_EXIST) {
+      uDebug("SML:0x%" PRIx64 " smlModifyDBSchemas create table:%s", info->id, pName.tname);
       SArray *pColumns = taosArrayInit(taosArrayGetSize(sTableData->cols), sizeof(SField));
       SArray *pTags = taosArrayInit(taosArrayGetSize(sTableData->tags), sizeof(SField));
       code = smlBuildFieldsList(info, NULL, NULL, sTableData->tags, pTags, 0, true);
@@ -818,6 +820,7 @@ static int32_t smlModifyDBSchemas(SSmlHandle *info) {
         goto end;
       }
       if (action != SCHEMA_ACTION_NULL) {
+        uDebug("SML:0x%" PRIx64 " smlModifyDBSchemas change table tag, table:%s, action:%d", info->id, pName.tname, action);
         SArray *pColumns =
             taosArrayInit(taosArrayGetSize(sTableData->cols) + pTableMeta->tableInfo.numOfColumns, sizeof(SField));
         SArray *pTags =
@@ -869,6 +872,7 @@ static int32_t smlModifyDBSchemas(SSmlHandle *info) {
         goto end;
       }
       if (action != SCHEMA_ACTION_NULL) {
+        uDebug("SML:0x%" PRIx64 " smlModifyDBSchemas change table col, table:%s, action:%d", info->id, pName.tname, action);
         SArray *pColumns =
             taosArrayInit(taosArrayGetSize(sTableData->cols) + pTableMeta->tableInfo.numOfColumns, sizeof(SField));
         SArray *pTags =
@@ -935,15 +939,19 @@ static int32_t smlModifyDBSchemas(SSmlHandle *info) {
     }
 
     sTableData->tableMeta = pTableMeta;
-
+    uDebug("SML:0x%" PRIx64 "modify schema uid:%" PRIu64 ", sversion:%d, tversion:%d", info->id, pTableMeta->uid, pTableMeta->sversion, pTableMeta->tversion)
     tmp = (SSmlSTableMeta **)taosHashIterate(info->superTables, tmp);
   }
+  uDebug("SML:0x%" PRIx64 " smlModifyDBSchemas end success, format:%d, needModifySchema:%d", info->id, info->dataFormat, info->needModifySchema);
+
   return 0;
 
 end:
   taosHashCleanup(hashTmp);
   taosMemoryFreeClear(pTableMeta);
-  //  catalogRefreshTableMeta(info->pCatalog, &conn, &pName, 1);
+  catalogRefreshTableMeta(info->pCatalog, &conn, &pName, 1);
+  uError("SML:0x%" PRIx64 " smlModifyDBSchemas end failed:%d:%s, format:%d, needModifySchema:%d", info->id, code, tstrerror(code), info->dataFormat, info->needModifySchema);
+
   return code;
 }
 
@@ -1019,8 +1027,9 @@ static int32_t smlUpdateMeta(SHashObj *metaHash, SArray *metaArray, SArray *cols
     } else {
       size_t tmp = taosArrayGetSize(metaArray);
       if (tmp > INT16_MAX) {
+        smlBuildInvalidDataMsg(msg, "too many cols or tags", kv->key);
         uError("too many cols or tags");
-        return -1;
+        return TSDB_CODE_SML_INVALID_DATA;
       }
       int16_t size = tmp;
       int     ret = taosHashPut(metaHash, kv->key, kv->keyLen, &size, SHORT_BYTES);
@@ -1170,6 +1179,7 @@ static int32_t smlPushCols(SArray *colsArray, SArray *cols) {
 }
 
 static int32_t smlParseLineBottom(SSmlHandle *info) {
+  uDebug("SML:0x%" PRIx64 " smlParseLineBottom start, format:%d, linenum:%d", info->id, info->dataFormat, info->lineNum);
   if (info->dataFormat) return TSDB_CODE_SUCCESS;
 
   for (int32_t i = 0; i < info->lineNum; i++) {
@@ -1212,6 +1222,7 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
     SSmlSTableMeta **tableMeta =
         (SSmlSTableMeta **)taosHashGet(info->superTables, elements->measure, elements->measureLen);
     if (tableMeta) {  // update meta
+      uDebug("SML:0x%" PRIx64 " smlParseLineBottom update meta, format:%d, linenum:%d", info->id, info->dataFormat, info->lineNum);
       ret = smlUpdateMeta((*tableMeta)->colHash, (*tableMeta)->cols, elements->colArray, false, &info->msgBuf);
       if (ret == TSDB_CODE_SUCCESS) {
         ret = smlUpdateMeta((*tableMeta)->tagHash, (*tableMeta)->tags, tinfo->tags, true, &info->msgBuf);
@@ -1226,7 +1237,7 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
       //        uError("SML:0x%" PRIx64 " smlUpdateMeta failed", info->id);
       //        return ret;
       //      }
-
+      uDebug("SML:0x%" PRIx64 " smlParseLineBottom add meta, format:%d, linenum:%d", info->id, info->dataFormat, info->lineNum);
       SSmlSTableMeta *meta = smlBuildSTableMeta(info->dataFormat);
       smlInsertMeta(meta->tagHash, meta->tags, tinfo->tags);
       if(terrno == TSDB_CODE_DUP_KEY){return terrno;}
@@ -1234,12 +1245,14 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
       taosHashPut(info->superTables, elements->measure, elements->measureLen, &meta, POINTER_BYTES);
     }
   }
+  uDebug("SML:0x%" PRIx64 " smlParseLineBottom end, format:%d, linenum:%d", info->id, info->dataFormat, info->lineNum);
 
   return TSDB_CODE_SUCCESS;
 }
 
 static int32_t smlInsertData(SSmlHandle *info) {
   int32_t code = TSDB_CODE_SUCCESS;
+  uDebug("SML:0x%" PRIx64 " smlInsertData start, format:%d", info->id, info->dataFormat);
 
   if(info->pRequest->dbList == NULL){
     info->pRequest->dbList = taosArrayInit(1, TSDB_DB_FNAME_LEN);
@@ -1284,6 +1297,7 @@ static int32_t smlInsertData(SSmlHandle *info) {
     // use tablemeta of stable to save vgid and uid of child table
     (*pMeta)->tableMeta->vgId = vg.vgId;
     (*pMeta)->tableMeta->uid = tableData->uid;  // one table merge data block together according uid
+    uDebug("SML:0x%" PRIx64 " smlInsertData table:%s, uid:%" PRIu64 ", format:%d", info->id, pName.tname, tableData->uid, info->dataFormat);
 
     code = smlBindData(info->pQuery, info->dataFormat, tableData->tags, (*pMeta)->cols, tableData->cols,
                        (*pMeta)->tableMeta, tableData->childTableName, tableData->sTableName, tableData->sTableNameLen,
@@ -1306,16 +1320,18 @@ static int32_t smlInsertData(SSmlHandle *info) {
   atomic_add_fetch_64((int64_t *)&pActivity->numOfInsertsReq, 1);
 
   launchQueryImpl(info->pRequest, info->pQuery, true, NULL);
+  uDebug("SML:0x%" PRIx64 " smlInsertData end, format:%d, code:%d,%s", info->id, info->dataFormat, info->pRequest->code, tstrerror(info->pRequest->code));
+
   return info->pRequest->code;
 }
 
 static void smlPrintStatisticInfo(SSmlHandle *info) {
   uDebug(
       "SML:0x%" PRIx64
-      " smlInsertLines result, code:%d,lineNum:%d,stable num:%d,ctable num:%d,create stable num:%d,alter stable tag num:%d,alter stable col num:%d \
+      " smlInsertLines result, code:%d, msg:%s, lineNum:%d,stable num:%d,ctable num:%d,create stable num:%d,alter stable tag num:%d,alter stable col num:%d \
         parse cost:%" PRId64 ",schema cost:%" PRId64 ",bind cost:%" PRId64 ",rpc cost:%" PRId64 ",total cost:%" PRId64
       "",
-      info->id, info->cost.code, info->cost.lineNum, info->cost.numOfSTables, info->cost.numOfCTables,
+      info->id, info->cost.code, tstrerror(info->cost.code), info->cost.lineNum, info->cost.numOfSTables, info->cost.numOfCTables,
       info->cost.numOfCreateSTables, info->cost.numOfAlterTagSTables, info->cost.numOfAlterColSTables,
       info->cost.schemaTime - info->cost.parseTime, info->cost.insertBindTime - info->cost.schemaTime,
       info->cost.insertRpcTime - info->cost.insertBindTime, info->cost.endTime - info->cost.insertRpcTime,
@@ -1360,6 +1376,7 @@ int32_t smlClearForRerun(SSmlHandle *info) {
 }
 
 static int32_t smlParseLine(SSmlHandle *info, char *lines[], char *rawLine, char *rawLineEnd, int numLines) {
+  uDebug("SML:0x%" PRIx64 " smlParseLine start", info->id);
   int32_t code = TSDB_CODE_SUCCESS;
   if (info->protocol == TSDB_SML_JSON_PROTOCOL) {
     if (lines) {
@@ -1395,8 +1412,16 @@ static int32_t smlParseLine(SSmlHandle *info, char *lines[], char *rawLine, char
       }
     }
 
-    uDebug("SML:0x%" PRIx64 " smlParseLine israw:%d, len:%d, sql:%s", info->id, info->isRawLine, len,
-           (info->isRawLine ? "rawdata" : tmp));
+    char cTmp = 0;      // for print tmp if is raw
+    if(info->isRawLine){
+      cTmp = tmp[len - 1];
+      tmp[len - 1] = '\0';
+    }
+
+    uDebug("SML:0x%" PRIx64 " smlParseLine israw:%d, numLines:%d, protocol:%d, len:%d, sql:%s", info->id, info->isRawLine, numLines, info->protocol, len, tmp);
+    if(info->isRawLine){
+      tmp[len - 1] = cTmp;
+    }
 
     if (info->protocol == TSDB_SML_LINE_PROTOCOL) {
       if (info->dataFormat) {
@@ -1421,6 +1446,7 @@ static int32_t smlParseLine(SSmlHandle *info, char *lines[], char *rawLine, char
       return code;
     }
     if (info->reRun) {
+      uDebug("SML:0x%" PRIx64 " smlParseLine re run", info->id);
       i = 0;
       rawLine = oldRaw;
       code = smlClearForRerun(info);
@@ -1431,6 +1457,7 @@ static int32_t smlParseLine(SSmlHandle *info, char *lines[], char *rawLine, char
     }
     i++;
   }
+  uDebug("SML:0x%" PRIx64 " smlParseLine end", info->id);
 
   return code;
 }
@@ -1461,7 +1488,8 @@ static int smlProcess(SSmlHandle *info, char *lines[], char *rawLine, char *rawL
   do {
     code = smlModifyDBSchemas(info);
     if (code == 0) break;
-    taosMsleep(200);
+    taosMsleep(500);
+    uInfo("SML:0x%" PRIx64 " smlModifyDBSchemas retry code:%s, times:%d", info->id, tstrerror(code), retryNum);
   } while (retryNum++ < taosHashGetSize(info->superTables) * MAX_RETRY_TIMES);
 
   if (code != 0) {
@@ -1488,6 +1516,7 @@ TAOS_RES *taos_schemaless_insert_inner(TAOS *taos, char *lines[], char *rawLine,
   }
   SRequestObj *request = NULL;
   SSmlHandle *info = NULL;
+  int cnt = 0;
   while(1){
     request = (SRequestObj *)createRequest(*(int64_t *)taos, TSDB_SQL_INSERT, reqid);
     if (request == NULL) {
@@ -1542,16 +1571,22 @@ TAOS_RES *taos_schemaless_insert_inner(TAOS *taos, char *lines[], char *rawLine,
     request->code = code;
     info->cost.endTime = taosGetTimestampUs();
     info->cost.code = code;
-    smlPrintStatisticInfo(info);
-    if(code == TSDB_CODE_TDB_INVALID_TABLE_SCHEMA_VER || code == TSDB_CODE_SDB_OBJ_CREATING){
+    if(code == TSDB_CODE_TDB_INVALID_TABLE_SCHEMA_VER || code == TSDB_CODE_SDB_OBJ_CREATING
+        || code == TSDB_CODE_PAR_VALUE_TOO_LONG || code == TSDB_CODE_MND_TRANS_CONFLICT){
+      if(cnt++ >= 10){
+        uInfo("SML:%"PRIx64" retry:%d/10 end code:%d, msg:%s", info->id, cnt, code, tstrerror(code));
+        break;
+      }
+      taosMsleep(100);
       refreshMeta(request->pTscObj, request);
-      uInfo("SML:%"PRIx64" ver is old retry or object is creating code:%d", info->id, code);
+      uInfo("SML:%"PRIx64" retry:%d/10,ver is old retry or object is creating code:%d, msg:%s", info->id, cnt, code, tstrerror(code));
       smlDestroyInfo(info);
       info = NULL;
       taos_free_result(request);
       request = NULL;
       continue;
     }
+    smlPrintStatisticInfo(info);
     break;
   }
 
diff --git a/source/client/src/clientSmlLine.c b/source/client/src/clientSmlLine.c
index b1aea1bfaa..335e3a1dc7 100644
--- a/source/client/src/clientSmlLine.c
+++ b/source/client/src/clientSmlLine.c
@@ -583,12 +583,14 @@ int32_t smlParseInfluxString(SSmlHandle *info, char *sql, char *sqlEnd, SSmlLine
                .i = ts,
                .length = (size_t)tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes};
   if (info->dataFormat) {
+    uDebug("SML:0x%" PRIx64 " smlParseInfluxString format true, ts:%" PRId64, info->id, ts);
     ret = smlBuildCol(info->currTableDataCtx, info->currSTableMeta->schema, &kv, 0);
     if(ret != TSDB_CODE_SUCCESS){return ret;}
     ret = smlBuildRow(info->currTableDataCtx);
     if(ret != TSDB_CODE_SUCCESS){return ret;}
     clearColValArray(info->currTableDataCtx->pValues);
   } else {
+    uDebug("SML:0x%" PRIx64 " smlParseInfluxString format false, ts:%" PRId64, info->id, ts);
     taosArraySet(elements->colArray, 0, &kv);
   }
   info->preLine = *elements;
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 0b4c7b88d7..aeeec1d61c 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -1238,13 +1238,13 @@ int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDi
   }
 
   if (taosLoadCfg(pCfg, envCmd, cfgDir, envFile, apolloUrl) != 0) {
-    uError("failed to load cfg since %s", terrstr());
+    printf("failed to load cfg since %s", terrstr());
     cfgCleanup(pCfg);
     return -1;
   }
 
   if (cfgLoadFromArray(pCfg, pArgs) != 0) {
-    uError("failed to load cfg from array since %s", terrstr());
+    printf("failed to load cfg from array since %s", terrstr());
     cfgCleanup(pCfg);
     return -1;
   }
@@ -1260,13 +1260,13 @@ int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDi
 
   if (taosMulModeMkDir(tsLogDir, 0777) != 0) {
     terrno = TAOS_SYSTEM_ERROR(errno);
-    uError("failed to create dir:%s since %s", tsLogDir, terrstr());
+    printf("failed to create dir:%s since %s", tsLogDir, terrstr());
     cfgCleanup(pCfg);
     return -1;
   }
 
   if (taosInitLog(logname, logFileNum) != 0) {
-    uError("failed to init log file since %s", terrstr());
+    printf("failed to init log file since %s", terrstr());
     cfgCleanup(pCfg);
     return -1;
   }
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 1ee799a8cf..327d233d30 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -637,9 +637,9 @@ static int32_t extractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq*
     if (metaRsp.metaRspLen > 0) {
       code = tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp);
       tqDebug("tmq poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send meta offset type:%d,uid:%" PRId64
-              ",version:%" PRId64,
+              ",ts:%" PRId64,
               consumerId, pHandle->subKey, vgId, metaRsp.rspOffset.type, metaRsp.rspOffset.uid,
-              metaRsp.rspOffset.version);
+              metaRsp.rspOffset.ts);
       taosMemoryFree(metaRsp.metaRsp);
       tDeleteSTaosxRsp(&taosxRsp);
       return code;
diff --git a/source/dnode/vnode/src/tq/tqRead.c b/source/dnode/vnode/src/tq/tqRead.c
index 1c8088be7e..69fb9e4c3d 100644
--- a/source/dnode/vnode/src/tq/tqRead.c
+++ b/source/dnode/vnode/src/tq/tqRead.c
@@ -185,13 +185,12 @@ end:
 
 int32_t tqFetchLog(STQ* pTq, STqHandle* pHandle, int64_t* fetchOffset, SWalCkHead** ppCkHead) {
   int32_t code = 0;
-
   taosThreadMutexLock(&pHandle->pWalReader->mutex);
   int64_t offset = *fetchOffset;
 
   while (1) {
     if (walFetchHead(pHandle->pWalReader, offset, *ppCkHead) < 0) {
-      tqDebug("tmq poll: consumer:0x%" PRIx64 ", (epoch %d) vgId:%d offset %" PRId64 ", no more log to return",
+      tqDebug("tmq poll: consumer:%" PRIx64 ", (epoch %d) vgId:%d offset %" PRId64 ", no more log to return",
               pHandle->consumerId, pHandle->epoch, TD_VID(pTq->pVnode), offset);
       *fetchOffset = offset - 1;
       code = -1;
diff --git a/source/libs/parser/src/parInsertSml.c b/source/libs/parser/src/parInsertSml.c
index 3c2b6499a4..106ee641af 100644
--- a/source/libs/parser/src/parInsertSml.c
+++ b/source/libs/parser/src/parInsertSml.c
@@ -70,7 +70,7 @@ static int32_t smlBoundColumnData(SArray* cols, SBoundColInfo* pBoundInfo, SSche
     SToken   sToken = {.n = kv->keyLen, .z = (char*)kv->key};
     col_id_t t = lastColIdx + 1;
     col_id_t index = ((t == 0 && !isTag) ? 0 : insFindCol(&sToken, t, pBoundInfo->numOfCols, pSchema));
-    uDebug("SML, index:%d, t:%d, ncols:%d", index, t, pBoundInfo->numOfCols);
+    uTrace("SML, index:%d, t:%d, ncols:%d", index, t, pBoundInfo->numOfCols);
     if (index < 0 && t > 0) {
       index = insFindCol(&sToken, 0, t, pSchema);
     }
@@ -345,7 +345,7 @@ int32_t smlBindData(SQuery* query, bool dataFormat, SArray* tags, SArray* colsSc
         }
         if (!taosMbsToUcs4(kv->value, kv->length, (TdUcs4*)pUcs4, pColSchema->bytes - VARSTR_HEADER_SIZE, &len)) {
           if (errno == E2BIG) {
-            uError("sml bind taosMbsToUcs4 error, kv length:%d, bytes:%d", (int)kv->length, pColSchema->bytes);
+            uError("sml bind taosMbsToUcs4 error, kv length:%d, bytes:%d, kv->value:%s", (int)kv->length, pColSchema->bytes, kv->value);
             buildInvalidOperationMsg(&pBuf, "value too long");
             ret = TSDB_CODE_PAR_VALUE_TOO_LONG;
             goto end;
diff --git a/source/util/src/tlog.c b/source/util/src/tlog.c
index 89dd51a892..bd9ea058b4 100644
--- a/source/util/src/tlog.c
+++ b/source/util/src/tlog.c
@@ -21,7 +21,7 @@
 #include "tjson.h"
 #include "tglobal.h"
 
-#define LOG_MAX_LINE_SIZE             (1024)
+#define LOG_MAX_LINE_SIZE             (10024)
 #define LOG_MAX_LINE_BUFFER_SIZE      (LOG_MAX_LINE_SIZE + 3)
 #define LOG_MAX_LINE_DUMP_SIZE        (1024 * 1024)
 #define LOG_MAX_LINE_DUMP_BUFFER_SIZE (LOG_MAX_LINE_DUMP_SIZE + 3)