From 4079bd2b5536d117b585b72e59ecb88d75566e67 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Tue, 4 Jan 2022 15:14:12 +0800
Subject: [PATCH 1/8] refactor code

---
 source/libs/index/src/index.c                 | 21 +++----
 source/libs/index/src/index_cache.c           |  2 +-
 .../index/src/index_fst_counting_writer.c     |  4 +-
 source/libs/index/src/index_tfile.c           | 56 ++++++++++---------
 source/libs/index/test/indexTests.cc          |  2 +-
 5 files changed, 40 insertions(+), 45 deletions(-)

diff --git a/source/libs/index/src/index.c b/source/libs/index/src/index.c
index 0657c68458..691e564c68 100644
--- a/source/libs/index/src/index.c
+++ b/source/libs/index/src/index.c
@@ -74,16 +74,15 @@ int indexOpen(SIndexOpts* opts, const char* path, SIndex** index) {
   // sIdx->cache = (void*)indexCacheCreate(sIdx);
   sIdx->tindex = indexTFileCreate(path);
   if (sIdx->tindex == NULL) { goto END; }
+
   sIdx->colObj = taosHashInit(8, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
   sIdx->cVersion = 1;
-  sIdx->path = calloc(1, strlen(path) + 1);
-  memcpy(sIdx->path, path, strlen(path));
+  sIdx->path = tstrdup(path);
   pthread_mutex_init(&sIdx->mtx, NULL);
-
   *index = sIdx;
-
   return 0;
 #endif
+
 END:
   if (sIdx != NULL) { indexClose(sIdx); }
 
@@ -310,18 +309,14 @@ static int indexTermSearch(SIndex* sIdx, SIndexTermQuery* query, SArray** result
 
   // Get col info
   IndexCache* cache = NULL;
-  pthread_mutex_lock(&sIdx->mtx);
 
   char      buf[128] = {0};
   ICacheKey key = {.suid = term->suid, .colName = term->colName, .nColName = strlen(term->colName)};
   int32_t   sz = indexSerialCacheKey(&key, buf);
 
+  pthread_mutex_lock(&sIdx->mtx);
   IndexCache** pCache = taosHashGet(sIdx->colObj, buf, sz);
-  if (pCache == NULL) {
-    pthread_mutex_unlock(&sIdx->mtx);
-    return -1;
-  }
-  cache = *pCache;
+  cache = (pCache == NULL) ? NULL : *pCache;
   pthread_mutex_unlock(&sIdx->mtx);
 
   *result = taosArrayInit(4, sizeof(uint64_t));
@@ -329,7 +324,7 @@ static int indexTermSearch(SIndex* sIdx, SIndexTermQuery* query, SArray** result
   STermValueType s = kTypeValue;
   if (0 == indexCacheSearch(cache, query, *result, &s)) {
     if (s == kTypeDeletion) {
-      indexInfo("col: %s already drop by other opera", term->colName);
+      indexInfo("col: %s already drop by", term->colName);
       // coloum already drop by other oper, no need to query tindex
       return 0;
     } else {
@@ -504,17 +499,15 @@ static int indexGenTFile(SIndex* sIdx, IndexCache* cache, SArray* batch) {
   tfileWriterClose(tw);
 
   TFileReader* reader = tfileReaderOpen(sIdx->path, cache->suid, version, cache->colName);
+  if (reader == NULL) { goto END; }
 
-  char         buf[128] = {0};
   TFileHeader* header = &reader->header;
   ICacheKey    key = {
       .suid = cache->suid, .colName = header->colName, .nColName = strlen(header->colName), .colType = header->colType};
 
   pthread_mutex_lock(&sIdx->mtx);
-
   IndexTFile* ifile = (IndexTFile*)sIdx->tindex;
   tfileCachePut(ifile->cache, &key, reader);
-
   pthread_mutex_unlock(&sIdx->mtx);
   return ret;
 END:
diff --git a/source/libs/index/src/index_cache.c b/source/libs/index/src/index_cache.c
index e95de9286e..a4993257b3 100644
--- a/source/libs/index/src/index_cache.c
+++ b/source/libs/index/src/index_cache.c
@@ -261,7 +261,7 @@ static int indexQueryMem(MemTable* mem, CacheTerm* ct, EIndexQueryType qtype, SA
   return 0;
 }
 int indexCacheSearch(void* cache, SIndexTermQuery* query, SArray* result, STermValueType* s) {
-  if (cache == NULL) { return -1; }
+  if (cache == NULL) { return 0; }
   IndexCache* pCache = cache;
 
   MemTable *mem = NULL, *imm = NULL;
diff --git a/source/libs/index/src/index_fst_counting_writer.c b/source/libs/index/src/index_fst_counting_writer.c
index 0f29da1c27..c3e1aab381 100644
--- a/source/libs/index/src/index_fst_counting_writer.c
+++ b/source/libs/index/src/index_fst_counting_writer.c
@@ -18,7 +18,7 @@
 #include "tutil.h"
 
 static int writeCtxDoWrite(WriterCtx* ctx, uint8_t* buf, int len) {
-  if (ctx->offset + len > ctx->limit) { return -1; }
+  // if (ctx->offset + len > ctx->limit) { return -1; }
 
   if (ctx->type == TFile) {
     assert(len == tfWrite(ctx->file.fd, buf, len));
@@ -111,8 +111,8 @@ void writerCtxDestroy(WriterCtx* ctx, bool remove) {
   if (ctx->type == TMemory) {
     free(ctx->mem.buf);
   } else {
+    // ctx->flush(ctx);
     tfClose(ctx->file.fd);
-    ctx->flush(ctx);
     if (remove) { unlink(ctx->file.buf); }
   }
   free(ctx);
diff --git a/source/libs/index/src/index_tfile.c b/source/libs/index/src/index_tfile.c
index d4d13ddf19..b32226775d 100644
--- a/source/libs/index/src/index_tfile.c
+++ b/source/libs/index/src/index_tfile.c
@@ -67,29 +67,18 @@ TFileCache* tfileCacheCreate(const char* path) {
   for (size_t i = 0; i < taosArrayGetSize(files); i++) {
     char* file = taosArrayGetP(files, i);
 
-    // refactor later, use colname and version info
-    char colName[256] = {0};
-    if (0 != tfileParseFileName(file, &suid, colName, (int*)&version)) {
-      indexInfo("try parse invalid file:  %s, skip it", file);
-      continue;
-    }
-
-    char fullName[256] = {0};
-    sprintf(fullName, "%s/%s", path, file);
-
-    WriterCtx* wc = writerCtxCreate(TFile, fullName, true, 1024 * 1024 * 64);
+    WriterCtx* wc = writerCtxCreate(TFile, file, true, 1024 * 1024 * 64);
     if (wc == NULL) {
       indexError("failed to open index:%s", file);
       goto End;
     }
 
-    char         buf[128] = {0};
     TFileReader* reader = tfileReaderCreate(wc);
+    if (reader == NULL) { goto End; }
     TFileHeader* header = &reader->header;
-    ICacheKey    key = {.suid = header->suid,
-                     .colName = header->colName,
-                     .nColName = strlen(header->colName),
-                     .colType = header->colType};
+
+    char      buf[128] = {0};
+    ICacheKey key = {.suid = header->suid, .colName = header->colName, .nColName = strlen(header->colName)};
 
     int32_t sz = indexSerialCacheKey(&key, buf);
     assert(sz < sizeof(buf));
@@ -256,7 +245,8 @@ int tfileWriterPut(TFileWriter* tw, void* data, bool order) {
   // sort by coltype and write to tindex
   if (order == false) {
     __compar_fn_t fn;
-    int8_t        colType = tw->header.colType;
+
+    int8_t colType = tw->header.colType;
     if (colType == TSDB_DATA_TYPE_BINARY || colType == TSDB_DATA_TYPE_NCHAR) {
       fn = tfileStrCompare;
     } else {
@@ -351,10 +341,16 @@ void tfileWriterDestroy(TFileWriter* tw) {
 }
 
 IndexTFile* indexTFileCreate(const char* path) {
-  IndexTFile* tfile = calloc(1, sizeof(IndexTFile));
-  if (tfile == NULL) { return NULL; }
+  TFileCache* cache = tfileCacheCreate(path);
+  if (cache == NULL) { return NULL; }
 
-  tfile->cache = tfileCacheCreate(path);
+  IndexTFile* tfile = calloc(1, sizeof(IndexTFile));
+  if (tfile == NULL) {
+    tfileCacheDestroy(cache);
+    return NULL;
+  }
+
+  tfile->cache = cache;
   return tfile;
 }
 void indexTFileDestroy(IndexTFile* tfile) {
@@ -366,6 +362,7 @@ void indexTFileDestroy(IndexTFile* tfile) {
 int indexTFileSearch(void* tfile, SIndexTermQuery* query, SArray* result) {
   int ret = -1;
   if (tfile == NULL) { return ret; }
+
   IndexTFile* pTfile = (IndexTFile*)tfile;
 
   SIndexTerm* term = query->term;
@@ -545,7 +542,6 @@ static int tfileReaderLoadHeader(TFileReader* reader) {
 
   int64_t nread = reader->ctx->readFrom(reader->ctx, buf, sizeof(buf), 0);
   if (nread == -1) {
-    //
     indexError("actual Read: %d, to read: %d, errno: %d, filefd: %d, filename: %s", (int)(nread), (int)sizeof(buf),
                errno, reader->ctx->file.fd, reader->ctx->file.buf);
   } else {
@@ -566,7 +562,8 @@ static int tfileReaderLoadFst(TFileReader* reader) {
 
   WriterCtx* ctx = reader->ctx;
   int32_t    nread = ctx->readFrom(ctx, buf, FST_MAX_SIZE, reader->header.fstOffset);
-  indexError("nread = %d, and fst offset=%d, filename: %s ", nread, reader->header.fstOffset, ctx->file.buf);
+  indexError("nread = %d, and fst offset=%d, filename: %s, size: %d ", nread, reader->header.fstOffset, ctx->file.buf,
+             ctx->file.size);
   // we assuse fst size less than FST_MAX_SIZE
   assert(nread > 0 && nread < FST_MAX_SIZE);
 
@@ -613,15 +610,20 @@ void tfileReaderUnRef(TFileReader* reader) {
 static SArray* tfileGetFileList(const char* path) {
   SArray* files = taosArrayInit(4, sizeof(void*));
 
+  char     buf[128] = {0};
+  uint64_t suid;
+  uint32_t version;
+
   DIR* dir = opendir(path);
   if (NULL == dir) { return NULL; }
-
   struct dirent* entry;
   while ((entry = readdir(dir)) != NULL) {
-    if (entry->d_type && DT_DIR) { continue; }
-    size_t len = strlen(entry->d_name);
-    char*  buf = calloc(1, len + 1);
-    memcpy(buf, entry->d_name, len);
+    char* file = entry->d_name;
+    if (0 != tfileParseFileName(file, &suid, buf, &version)) { continue; }
+
+    size_t len = strlen(path) + 1 + strlen(file) + 1;
+    char*  buf = calloc(1, len);
+    sprintf(buf, "%s/%s", path, file);
     taosArrayPush(files, &buf);
   }
   closedir(dir);
diff --git a/source/libs/index/test/indexTests.cc b/source/libs/index/test/indexTests.cc
index 77b6e02f18..b33b5b7632 100644
--- a/source/libs/index/test/indexTests.cc
+++ b/source/libs/index/test/indexTests.cc
@@ -848,7 +848,7 @@ TEST_F(IndexEnv2, testIndex_serarch_cache_and_tfile) {
   index->PutOne("tag1", "Hello");
   index->PutOne("tag2", "Test");
   index->WriteMultiMillonData("tag1", "Hello", 50 * 10000);
-  index->WriteMultiMillonData("tag2", "Test", 50 * 10000);
+  index->WriteMultiMillonData("tag2", "Test", 10 * 10000);
   std::thread threads[NUM_OF_THREAD];
 
   for (int i = 0; i < NUM_OF_THREAD; i++) {

From 4bdac1fdbf987faf2be31ff78620934b35966d00 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Tue, 4 Jan 2022 15:59:54 +0800
Subject: [PATCH 2/8] optimize tfile

---
 source/libs/index/src/index.c        |  2 +-
 source/libs/index/src/index_cache.c  |  2 +-
 source/libs/index/src/index_tfile.c  | 11 ++++++-----
 source/libs/index/test/indexTests.cc | 12 +++++-------
 4 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/source/libs/index/src/index.c b/source/libs/index/src/index.c
index 691e564c68..44d3066589 100644
--- a/source/libs/index/src/index.c
+++ b/source/libs/index/src/index.c
@@ -397,7 +397,7 @@ static void indexDestroyTempResult(SArray* result) {
 }
 int indexFlushCacheTFile(SIndex* sIdx, void* cache) {
   if (sIdx == NULL) { return -1; }
-  indexWarn("suid %" PRIu64 " merge cache into tindex", sIdx->suid);
+  indexInfo("suid %" PRIu64 " merge cache into tindex", sIdx->suid);
 
   IndexCache*  pCache = (IndexCache*)cache;
   TFileReader* pReader = tfileGetReaderByCol(sIdx->tindex, pCache->suid, pCache->colName);
diff --git a/source/libs/index/src/index_cache.c b/source/libs/index/src/index_cache.c
index a4993257b3..517cb1640d 100644
--- a/source/libs/index/src/index_cache.c
+++ b/source/libs/index/src/index_cache.c
@@ -20,7 +20,7 @@
 
 #define MAX_INDEX_KEY_LEN 256  // test only, change later
 
-#define MEM_TERM_LIMIT 5 * 10000
+#define MEM_TERM_LIMIT 10 * 10000
 // ref index_cache.h:22
 //#define CACHE_KEY_LEN(p) \
 //  (sizeof(int32_t) + sizeof(uint16_t) + sizeof(p->colType) + sizeof(p->nColVal) + p->nColVal + sizeof(uint64_t) +
diff --git a/source/libs/index/src/index_tfile.c b/source/libs/index/src/index_tfile.c
index b32226775d..753dbe87b1 100644
--- a/source/libs/index/src/index_tfile.c
+++ b/source/libs/index/src/index_tfile.c
@@ -264,7 +264,8 @@ int tfileWriterPut(TFileWriter* tw, void* data, bool order) {
   // ugly code, refactor later
   for (size_t i = 0; i < sz; i++) {
     TFileValue* v = taosArrayGetP((SArray*)data, i);
-    // taosArrayRemoveDuplicate(v->tablId, tfileUidCompare, NULL);
+    taosArraySort(v->tableId, tfileUidCompare);
+    taosArrayRemoveDuplicate(v->tableId, tfileUidCompare, NULL);
     int32_t tbsz = taosArrayGetSize(v->tableId);
     fstOffset += TF_TABLE_TATOAL_SIZE(tbsz);
   }
@@ -545,8 +546,8 @@ static int tfileReaderLoadHeader(TFileReader* reader) {
     indexError("actual Read: %d, to read: %d, errno: %d, filefd: %d, filename: %s", (int)(nread), (int)sizeof(buf),
                errno, reader->ctx->file.fd, reader->ctx->file.buf);
   } else {
-    indexError("actual Read: %d, to read: %d, errno: %d, filefd: %d, filename: %s", (int)(nread), (int)sizeof(buf),
-               errno, reader->ctx->file.fd, reader->ctx->file.buf);
+    indexInfo("actual Read: %d, to read: %d, filefd: %d, filename: %s", (int)(nread), (int)sizeof(buf),
+              reader->ctx->file.fd, reader->ctx->file.buf);
   }
   // assert(nread == sizeof(buf));
   memcpy(&reader->header, buf, sizeof(buf));
@@ -562,8 +563,8 @@ static int tfileReaderLoadFst(TFileReader* reader) {
 
   WriterCtx* ctx = reader->ctx;
   int32_t    nread = ctx->readFrom(ctx, buf, FST_MAX_SIZE, reader->header.fstOffset);
-  indexError("nread = %d, and fst offset=%d, filename: %s, size: %d ", nread, reader->header.fstOffset, ctx->file.buf,
-             ctx->file.size);
+  indexInfo("nread = %d, and fst offset=%d, filename: %s, size: %d ", nread, reader->header.fstOffset, ctx->file.buf,
+            ctx->file.size);
   // we assuse fst size less than FST_MAX_SIZE
   assert(nread > 0 && nread < FST_MAX_SIZE);
 
diff --git a/source/libs/index/test/indexTests.cc b/source/libs/index/test/indexTests.cc
index b33b5b7632..c3d6e5541f 100644
--- a/source/libs/index/test/indexTests.cc
+++ b/source/libs/index/test/indexTests.cc
@@ -701,7 +701,8 @@ class IndexObj {
     int64_t s = taosGetTimestampUs();
     if (Search(mq, result) == 0) {
       int64_t e = taosGetTimestampUs();
-      std::cout << "search one successfully and time cost:" << e - s << std::endl;
+      std::cout << "search one successfully and time cost:" << e - s << "\tquery col:" << colName
+                << "\t val: " << colVal << "\t size:" << taosArrayGetSize(result) << std::endl;
     } else {
     }
     int sz = taosArrayGetSize(result);
@@ -834,11 +835,8 @@ static void write_and_search(IndexObj* idx) {
   std::string colName("tag1"), colVal("Hello");
 
   int target = idx->SearchOne("tag1", "Hello");
-  std::cout << "search: " << target << std::endl;
   target = idx->SearchOne("tag2", "Test");
-  std::cout << "search: " << target << std::endl;
-
-  idx->PutOne(colName, colVal);
+  // idx->PutOne(colName, colVal);
 }
 TEST_F(IndexEnv2, testIndex_serarch_cache_and_tfile) {
   std::string path = "/tmp/cache_and_tfile";
@@ -847,8 +845,8 @@ TEST_F(IndexEnv2, testIndex_serarch_cache_and_tfile) {
   }
   index->PutOne("tag1", "Hello");
   index->PutOne("tag2", "Test");
-  index->WriteMultiMillonData("tag1", "Hello", 50 * 10000);
-  index->WriteMultiMillonData("tag2", "Test", 10 * 10000);
+  index->WriteMultiMillonData("tag1", "Hello", 100 * 10000);
+  index->WriteMultiMillonData("tag2", "Test", 100 * 10000);
   std::thread threads[NUM_OF_THREAD];
 
   for (int i = 0; i < NUM_OF_THREAD; i++) {

From eb9a70975ae47bc227e246300358ffb4db6b88b6 Mon Sep 17 00:00:00 2001
From: dapan1121 <wpan@taosdata.com>
Date: Tue, 4 Jan 2022 16:13:46 +0800
Subject: [PATCH 3/8] feature/qnode

---
 source/libs/qcom/src/querymsg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/source/libs/qcom/src/querymsg.c b/source/libs/qcom/src/querymsg.c
index f24b191db3..507650159f 100644
--- a/source/libs/qcom/src/querymsg.c
+++ b/source/libs/qcom/src/querymsg.c
@@ -247,8 +247,8 @@ int32_t queryProcessTableMetaRsp(void* output, char *msg, int32_t msgSize) {
     pOut->metaNum = 2;
 
     if (pMetaMsg->dbFname[0]) {
-      snprintf(pOut->ctbFname, "%s.%s", pMetaMsg->dbFname, pMetaMsg->tbFname);
-      snprintf(pOut->tbFname, "%s.%s", pMetaMsg->dbFname, pMetaMsg->stbFname);
+      snprintf(pOut->ctbFname, sizeof(pOut->ctbFname), "%s.%s", pMetaMsg->dbFname, pMetaMsg->tbFname);
+      snprintf(pOut->tbFname, sizeof(pOut->tbFname), "%s.%s", pMetaMsg->dbFname, pMetaMsg->stbFname);
     } else {
       memcpy(pOut->ctbFname, pMetaMsg->tbFname, sizeof(pOut->ctbFname));
       memcpy(pOut->tbFname, pMetaMsg->stbFname, sizeof(pOut->tbFname));

From 9328785043dc788d8f747c1c013d60c7fcc42ba1 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Tue, 4 Jan 2022 16:21:32 +0800
Subject: [PATCH 4/8] [td-11818] refactor.

---
 include/libs/catalog/catalog.h           |  4 +-
 include/os/osSysinfo.h                   |  2 +-
 source/client/src/clientEnv.c            | 19 +++++----
 source/client/src/clientImpl.c           |  6 +--
 source/client/test/clientTests.cpp       | 12 +++++-
 source/dnode/mnode/impl/src/mndCluster.c |  2 +-
 source/libs/catalog/src/catalog.c        |  4 +-
 source/libs/parser/src/dCDAstProcess.c   | 50 +++++++++++++++---------
 source/libs/scheduler/src/scheduler.c    |  5 ++-
 source/os/src/osSysinfo.c                |  6 +--
 10 files changed, 68 insertions(+), 42 deletions(-)

diff --git a/include/libs/catalog/catalog.h b/include/libs/catalog/catalog.h
index 6250bbbe9e..3916898829 100644
--- a/include/libs/catalog/catalog.h
+++ b/include/libs/catalog/catalog.h
@@ -100,13 +100,13 @@ int32_t catalogRenewTableMeta(struct SCatalog* pCatalog, void * pTransporter, co
 /**
  * Force renew a table's local cached meta data and get the new one. 
  * @param pCatalog (input, got with catalogGetHandle)
- * @param pRpc (input, rpc object)
+ * @param pTransporter (input, rpc object)
  * @param pMgmtEps (input, mnode EPs)
  * @param pTableName (input, table name, NOT including db name)
  * @param pTableMeta(output, table meta data, NEED to free it by calller) 
  * @return error code
  */
-int32_t catalogRenewAndGetTableMeta(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta);
+int32_t catalogRenewAndGetTableMeta(struct SCatalog* pCatalog, void *pTransporter, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta);
 
 
 /**
diff --git a/include/os/osSysinfo.h b/include/os/osSysinfo.h
index b410255ea4..36ff4194d8 100644
--- a/include/os/osSysinfo.h
+++ b/include/os/osSysinfo.h
@@ -54,7 +54,7 @@ bool    taosGetSysMemory(float *memoryUsedMB);
 void    taosPrintOsInfo();
 int     taosSystem(const char *cmd);
 void    taosKillSystem();
-int32_t taosGetSystemUid(char *uid, int32_t uidlen);
+int32_t taosGetSystemUUID(char *uid, int32_t uidlen);
 char *  taosGetCmdlineByPID(int pid);
 void    taosSetCoreDump(bool enable);
 
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 1c7354b445..47d0e517d5 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -419,17 +419,20 @@ int taos_options_imp(TSDB_OPTION option, const char *str) {
  *+------------+-----+-----------+---------------+
  * @return
  */
-static int32_t requestSerialId = 0;
 uint64_t generateRequestId() {
-  uint64_t hashId = 0;
+  static uint64_t hashId = 0;
+  static int32_t requestSerialId = 0;
 
-  char uid[64] = {0};
-  int32_t code = taosGetSystemUid(uid, tListLen(uid));
-  if (code != TSDB_CODE_SUCCESS) {
-    tscError("Failed to get the system uid to generated request id, reason:%s. use ip address instead", tstrerror(TAOS_SYSTEM_ERROR(errno)));
+  if (hashId == 0) {
+    char    uid[64] = {0};
+    int32_t code = taosGetSystemUUID(uid, tListLen(uid));
+    if (code != TSDB_CODE_SUCCESS) {
+      tscError("Failed to get the system uid to generated request id, reason:%s. use ip address instead",
+               tstrerror(TAOS_SYSTEM_ERROR(errno)));
 
-  } else {
-    hashId = MurmurHash3_32(uid, strlen(uid));
+    } else {
+      hashId = MurmurHash3_32(uid, strlen(uid));
+    }
   }
 
   int64_t ts      = taosGetTimestampUs();
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 71fd8462af..394bf654c0 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -140,7 +140,7 @@ int32_t buildRequest(STscObj *pTscObj, const char *sql, int sqlLen, SRequestObj*
   (*pRequest)->sqlstr[sqlLen] = 0;
   (*pRequest)->sqlLen = sqlLen;
 
-  tscDebugL("0x%"PRIx64" SQL: %s", (*pRequest)->requestId, (*pRequest)->sqlstr);
+  tscDebugL("0x%"PRIx64" SQL: %s, reqId:0x"PRIx64, (*pRequest)->self, (*pRequest)->sqlstr, (*pRequest)->requestId);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -443,10 +443,10 @@ void processMsgFromServer(void* parent, SRpcMsg* pMsg, SEpSet* pEpSet) {
      */
     int32_t elapsed = pRequest->metric.rsp - pRequest->metric.start;
     if (pMsg->code == TSDB_CODE_SUCCESS) {
-      tscDebug("0x%" PRIx64 " message:%s, code:%s rspLen:%d, elapsed:%d ms, reqId:0x%"PRIx64, pRequest->requestId,
+      tscDebug("0x%" PRIx64 " message:%s, code:%s rspLen:%d, elapsed:%d ms, reqId:0x%"PRIx64, pRequest->self,
           TMSG_INFO(pMsg->msgType), tstrerror(pMsg->code), pMsg->contLen, elapsed, pRequest->requestId);
     } else {
-      tscError("reqId:0x%" PRIx64 " SQL cmd:%s, code:%s rspLen:%d, elapsed time:%d ms, reqId:0x"PRIx64, pRequest->requestId,
+      tscError("0x%" PRIx64 " SQL cmd:%s, code:%s rspLen:%d, elapsed time:%d ms, reqId:0x%"PRIx64, pRequest->self,
           TMSG_INFO(pMsg->msgType), tstrerror(pMsg->code), pMsg->contLen, elapsed, pRequest->requestId);
     }
 
diff --git a/source/client/test/clientTests.cpp b/source/client/test/clientTests.cpp
index 193f436734..26f1141cc0 100644
--- a/source/client/test/clientTests.cpp
+++ b/source/client/test/clientTests.cpp
@@ -496,6 +496,17 @@ TEST(testCase, create_multiple_tables) {
   }
 
   taos_free_result(pRes);
+
+//  for(int32_t i = 0; i < 10000; ++i) {
+//    char sql[512] = {0};
+//    snprintf(sql, tListLen(sql), "create table t_x_%d using st1 tags(2)", i);
+//    TAOS_RES* pres = taos_query(pConn, sql);
+//    if (taos_errno(pres) != 0) {
+//      printf("failed to create table %d\n, reason:%s", i, taos_errstr(pres));
+//    }
+//    taos_free_result(pres);
+//  }
+
   taos_close(pConn);
 }
 
@@ -506,7 +517,6 @@ TEST(testCase, generated_request_id_test) {
     uint64_t v = generateRequestId();
     void* result = taosHashGet(phash, &v, sizeof(v));
     ASSERT_EQ(result, nullptr);
-
     taosHashPut(phash, &v, sizeof(v), NULL, 0);
   }
 
diff --git a/source/dnode/mnode/impl/src/mndCluster.c b/source/dnode/mnode/impl/src/mndCluster.c
index 00cfa6b413..b29f8276fe 100644
--- a/source/dnode/mnode/impl/src/mndCluster.c
+++ b/source/dnode/mnode/impl/src/mndCluster.c
@@ -145,7 +145,7 @@ static int32_t mndCreateDefaultCluster(SMnode *pMnode) {
   clusterObj.createdTime = taosGetTimestampMs();
   clusterObj.updateTime = clusterObj.createdTime;
 
-  int32_t code = taosGetSystemUid(clusterObj.name, TSDB_CLUSTER_ID_LEN);
+  int32_t code = taosGetSystemUUID(clusterObj.name, TSDB_CLUSTER_ID_LEN);
   if (code != 0) {
     strcpy(clusterObj.name, "tdengine2.0");
     mError("failed to get name from system, set to default val %s", clusterObj.name);
diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index 5992962419..abcfafa786 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -698,8 +698,8 @@ _return:
   CTG_RET(code);
 }
 
-int32_t catalogRenewAndGetTableMeta(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta) {
-  return ctgGetTableMetaImpl(pCatalog, pRpc, pMgmtEps, pTableName, true, pTableMeta);
+int32_t catalogRenewAndGetTableMeta(struct SCatalog* pCatalog, void *pTransporter, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta) {
+  return ctgGetTableMetaImpl(pCatalog, pTransporter, pMgmtEps, pTableName, true, pTableMeta);
 }
 
 int32_t catalogGetTableDistVgroup(struct SCatalog* pCatalog, void *pRpc, const SEpSet* pMgmtEps, const SName* pTableName, SArray** pVgroupList) {
diff --git a/source/libs/parser/src/dCDAstProcess.c b/source/libs/parser/src/dCDAstProcess.c
index d343451516..6007fc300c 100644
--- a/source/libs/parser/src/dCDAstProcess.c
+++ b/source/libs/parser/src/dCDAstProcess.c
@@ -326,6 +326,31 @@ typedef struct SVgroupTablesBatch {
   SVgroupInfo        info;
 } SVgroupTablesBatch;
 
+static int32_t doParseSerializeTagValue(SSchema* pTagSchema, int32_t numOfInputTag, SKVRowBuilder* pKvRowBuilder,
+                                        SArray* pTagValList, int32_t tsPrecision, SMsgBuf* pMsgBuf) {
+  const char* msg1 = "illegal value or data overflow";
+  int32_t     code = TSDB_CODE_SUCCESS;
+
+  for (int32_t i = 0; i < numOfInputTag; ++i) {
+    SSchema* pSchema = &pTagSchema[i];
+
+    char* endPtr = NULL;
+    char  tmpTokenBuf[TSDB_MAX_TAGS_LEN] = {0};
+
+    SKvParam param = {.builder = pKvRowBuilder, .schema = pSchema};
+
+    SToken* pItem = taosArrayGet(pTagValList, i);
+    code = parseValueToken(&endPtr, pItem, pSchema, tsPrecision, tmpTokenBuf, KvRowAppend, &param, pMsgBuf);
+
+    if (code != TSDB_CODE_SUCCESS) {
+      tdDestroyKVRowBuilder(pKvRowBuilder);
+      return buildInvalidOperationMsg(pMsgBuf, msg1);
+    }
+  }
+
+  return code;
+}
+
 int32_t doCheckForCreateCTable(SSqlInfo* pInfo, SParseBasicCtx* pCtx, SMsgBuf* pMsgBuf, char** pOutput, int32_t* len) {
   const char* msg1 = "invalid table name";
   const char* msg2 = "tags number not matched";
@@ -354,10 +379,9 @@ int32_t doCheckForCreateCTable(SSqlInfo* pInfo, SParseBasicCtx* pCtx, SMsgBuf* p
     }
 
     SArray* pValList = pCreateTableInfo->pTagVals;
+    size_t  numOfInputTag = taosArrayGetSize(pValList);
 
-    size_t      numOfInputTag = taosArrayGetSize(pValList);
     STableMeta* pSuperTableMeta = NULL;
-
     code = catalogGetTableMeta(pCtx->pCatalog, pCtx->pTransporter, &pCtx->mgmtEpSet, &name, &pSuperTableMeta);
     if (code != TSDB_CODE_SUCCESS) {
       return code;
@@ -463,21 +487,9 @@ int32_t doCheckForCreateCTable(SSqlInfo* pInfo, SParseBasicCtx* pCtx, SMsgBuf* p
         return buildInvalidOperationMsg(pMsgBuf, msg2);
       }
 
-      for (int32_t i = 0; i < numOfInputTag; ++i) {
-        SSchema* pSchema = &pTagSchema[i];
-
-        char* endPtr = NULL;
-        char  tmpTokenBuf[TSDB_MAX_TAGS_LEN] = {0};
-
-        SKvParam param = {.builder = &kvRowBuilder, .schema = pSchema};
-
-        SToken* pItem = taosArrayGet(pValList, i);
-        code = parseValueToken(&endPtr, pItem, pSchema, tinfo.precision, tmpTokenBuf, KvRowAppend, &param, pMsgBuf);
-
-        if (code != TSDB_CODE_SUCCESS) {
-          tdDestroyKVRowBuilder(&kvRowBuilder);
-          return buildInvalidOperationMsg(pMsgBuf, msg4);
-        }
+      code = doParseSerializeTagValue(pTagSchema, numOfInputTag, &kvRowBuilder, pValList, tinfo.precision, pMsgBuf);
+      if (code != TSDB_CODE_SUCCESS) {
+        return code;
       }
     }
 
@@ -499,8 +511,8 @@ int32_t doCheckForCreateCTable(SSqlInfo* pInfo, SParseBasicCtx* pCtx, SMsgBuf* p
     catalogGetTableHashVgroup(pCtx->pCatalog, pCtx->pTransporter, &pCtx->mgmtEpSet, &tableName, &info);
 
     struct SVCreateTbReq req = {0};
-    req.type = TD_CHILD_TABLE;
-    req.name = strdup(tNameGetTableName(&tableName));
+    req.type        = TD_CHILD_TABLE;
+    req.name        = strdup(tNameGetTableName(&tableName));
     req.ctbCfg.suid = pSuperTableMeta->uid;
     req.ctbCfg.pTag = row;
 
diff --git a/source/libs/scheduler/src/scheduler.c b/source/libs/scheduler/src/scheduler.c
index 22556f742b..9079912c40 100644
--- a/source/libs/scheduler/src/scheduler.c
+++ b/source/libs/scheduler/src/scheduler.c
@@ -372,7 +372,7 @@ int32_t schProcessOnTaskSuccess(SSchJob *job, SSchTask *task) {
   
   SCH_ERR_RET(schMoveTaskToSuccList(job, task, &moved));
   if (!moved) {
-    SCH_TASK_ERR_LOG("task may already moved, status:%d", task->status);
+    SCH_TASK_ERR_LOG(" task may already moved, status:%d", task->status);
     return TSDB_CODE_SUCCESS;
   }
 
@@ -480,7 +480,6 @@ int32_t schProcessOnTaskFailure(SSchJob *job, SSchTask *task, int32_t errCode) {
 int32_t schProcessRspMsg(SSchJob *job, SSchTask *task, int32_t msgType, char *msg, int32_t msgSize, int32_t rspCode) {
   int32_t code = 0;
 
-
   switch (msgType) {
     case TDMT_VND_CREATE_TABLE_RSP: {
       if (rspCode != TSDB_CODE_SUCCESS) {
@@ -492,6 +491,8 @@ int32_t schProcessRspMsg(SSchJob *job, SSchTask *task, int32_t msgType, char *ms
           goto _task_error;
         }
       }
+
+      break;
     }
     case TDMT_VND_SUBMIT_RSP: {
         if (rspCode != TSDB_CODE_SUCCESS) {
diff --git a/source/os/src/osSysinfo.c b/source/os/src/osSysinfo.c
index df006f44eb..e235b0714e 100644
--- a/source/os/src/osSysinfo.c
+++ b/source/os/src/osSysinfo.c
@@ -252,7 +252,7 @@ LONG WINAPI FlCrashDump(PEXCEPTION_POINTERS ep) {
 
 void taosSetCoreDump() { SetUnhandledExceptionFilter(&FlCrashDump); }
 
-int32_t taosGetSystemUid(char *uid, int32_t uidlen) {
+int32_t taosGetSystemUUID(char *uid, int32_t uidlen) {
   GUID guid;
   CoCreateGuid(&guid);
 
@@ -452,7 +452,7 @@ int32_t taosGetDiskSize(char *dataDir, SysDiskSize *diskSize) {
   }
 }
 
-int32_t taosGetSystemUid(char *uid, int32_t uidlen) {
+int32_t taosGetSystemUUID(char *uid, int32_t uidlen) {
   uuid_t uuid = {0};
   uuid_generate(uuid);
   // it's caller's responsibility to make enough space for `uid`, that's 36-char + 1-null
@@ -1070,7 +1070,7 @@ void taosSetCoreDump(bool enable) {
 #endif
 }
 
-int32_t taosGetSystemUid(char *uid, int32_t uidlen) {
+int32_t taosGetSystemUUID(char *uid, int32_t uidlen) {
   int fd;
   int len = 0;
 

From c426ae83836191a36931041fa0b146d30ad1852f Mon Sep 17 00:00:00 2001
From: Xiaoyu Wang <xiaoyuwang@taosdata.com>
Date: Tue, 4 Jan 2022 03:32:48 -0500
Subject: [PATCH 5/8] TD-12696 bug fix for insert

---
 source/libs/parser/inc/dataBlockMgt.h | 2 +-
 source/libs/parser/src/insertParser.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/source/libs/parser/inc/dataBlockMgt.h b/source/libs/parser/inc/dataBlockMgt.h
index 69dad4d9f4..cd84222c65 100644
--- a/source/libs/parser/inc/dataBlockMgt.h
+++ b/source/libs/parser/inc/dataBlockMgt.h
@@ -126,7 +126,7 @@ static FORCE_INLINE void getMemRowAppendInfo(SSchema *pSchema, uint8_t memRowTyp
                                                 int32_t idx, int32_t *toffset) {
   int32_t schemaIdx = 0;
   if (IS_DATA_COL_ORDERED(spd)) {
-    schemaIdx = spd->boundedColumns[idx];
+    schemaIdx = spd->boundedColumns[idx] - 1;
     if (isDataRowT(memRowType)) {
       *toffset = (spd->cols + schemaIdx)->toffset;  // the offset of firstPart
     } else {
diff --git a/source/libs/parser/src/insertParser.c b/source/libs/parser/src/insertParser.c
index c0ba4f40b4..cde426fb9a 100644
--- a/source/libs/parser/src/insertParser.c
+++ b/source/libs/parser/src/insertParser.c
@@ -425,7 +425,7 @@ static int parseOneRow(SInsertParseContext* pCxt, STableDataBlocks* pDataBlocks,
   // 1. set the parsed value from sql string
   for (int i = 0; i < spd->numOfBound; ++i) {
     NEXT_TOKEN(pCxt->pSql, sToken);
-    SSchema *pSchema = &schema[spd->boundedColumns[i]]; 
+    SSchema *pSchema = &schema[spd->boundedColumns[i] - 1]; 
     param.schema = pSchema;
     param.compareStat = pBuilder->compareStat;
     getMemRowAppendInfo(schema, pBuilder->memRowType, spd, i, &param.toffset);

From e5155adcacfe766176d2d2c9fd36f6716693d877 Mon Sep 17 00:00:00 2001
From: Xiaoyu Wang <xiaoyuwang@taosdata.com>
Date: Tue, 4 Jan 2022 04:05:33 -0500
Subject: [PATCH 6/8] TD-12696 bug fix for insert

---
 source/libs/parser/src/insertParser.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/libs/parser/src/insertParser.c b/source/libs/parser/src/insertParser.c
index cde426fb9a..c63e854051 100644
--- a/source/libs/parser/src/insertParser.c
+++ b/source/libs/parser/src/insertParser.c
@@ -106,6 +106,7 @@ static int32_t getTableMeta(SInsertParseContext* pCxt, SToken* pTname) {
   SVgroupInfo vg;
   CHECK_CODE(catalogGetTableHashVgroup(pBasicCtx->pCatalog, pBasicCtx->pTransporter, &pBasicCtx->mgmtEpSet, &name, &vg));
   CHECK_CODE(taosHashPut(pCxt->pVgroupsHashObj, (const char*)&vg.vgId, sizeof(vg.vgId), (char*)&vg, sizeof(vg)));
+  pCxt->pTableMeta->vgId = vg.vgId; // todo remove
   return TSDB_CODE_SUCCESS;
 }
 
@@ -425,7 +426,7 @@ static int parseOneRow(SInsertParseContext* pCxt, STableDataBlocks* pDataBlocks,
   // 1. set the parsed value from sql string
   for (int i = 0; i < spd->numOfBound; ++i) {
     NEXT_TOKEN(pCxt->pSql, sToken);
-    SSchema *pSchema = &schema[spd->boundedColumns[i] - 1]; 
+    SSchema *pSchema = &schema[spd->boundedColumns[i] - 1];
     param.schema = pSchema;
     param.compareStat = pBuilder->compareStat;
     getMemRowAppendInfo(schema, pBuilder->memRowType, spd, i, &param.toffset);

From b15ea75b996d2705ea7f90a44ed98e212cfeb998 Mon Sep 17 00:00:00 2001
From: Xiaoyu Wang <xiaoyuwang@taosdata.com>
Date: Tue, 4 Jan 2022 04:16:32 -0500
Subject: [PATCH 7/8] TD-12696 bug fix for insert

---
 source/client/src/clientImpl.c | 5 ++++-
 source/client/src/clientMain.c | 4 +++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 71fd8462af..a4750309e8 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -203,7 +203,10 @@ int32_t getPlan(SRequestObj* pRequest, SQueryNode* pQuery, SQueryDag** pDag) {
 
 int32_t scheduleQuery(SRequestObj* pRequest, SQueryDag* pDag, void** pJob) {
   if (TSDB_SQL_INSERT == pRequest->type || TSDB_SQL_CREATE_TABLE == pRequest->type) {
-    return scheduleExecJob(pRequest->pTscObj->pTransporter, NULL/*todo appInfo.xxx*/, pDag, pJob, &pRequest->affectedRows);
+    SQueryResult res = {.code = 0, .numOfRows = 0, .msgSize = ERROR_MSG_BUF_DEFAULT_SIZE, .msg = pRequest->msgBuf};
+    int32_t code = scheduleExecJob(pRequest->pTscObj->pTransporter, NULL, pDag, pJob, &res);
+    pRequest->affectedRows = res.numOfRows;
+    return res.code;
   }
 
   return scheduleAsyncExecJob(pRequest->pTscObj->pTransporter, NULL/*todo appInfo.xxx*/, pDag, pJob);
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index e5f3eba5c2..2b875b3eb5 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -262,6 +262,8 @@ const char *taos_data_type(int type) {
 
 const char *taos_get_client_info() { return version; }
 
-int taos_affected_rows(TAOS_RES *res) { return 1; }
+int taos_affected_rows(TAOS_RES *res) {
+  return ((SRequestObj*)res)->affectedRows;
+}
 
 int taos_result_precision(TAOS_RES *res) { return TSDB_TIME_PRECISION_MILLI; }

From dcb0de0b5cf7d86ec0f40ab4b4c4deb6e9db2e93 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Tue, 4 Jan 2022 01:17:25 -0800
Subject: [PATCH 8/8] test cases for trans

---
 source/dnode/mgmt/impl/test/sut/inc/base.h    |  2 +
 source/dnode/mgmt/impl/test/sut/inc/server.h  |  2 +-
 source/dnode/mgmt/impl/test/sut/src/base.cpp  | 10 ++-
 source/dnode/mnode/impl/test/CMakeLists.txt   |  1 +
 source/dnode/mnode/impl/test/acct/acct.cpp    |  6 +-
 .../mnode/impl/test/trans/CMakeLists.txt      | 11 +++
 source/dnode/mnode/impl/test/trans/trans.cpp  | 86 +++++++++++++++++++
 source/dnode/mnode/impl/test/user/user.cpp    |  8 +-
 source/dnode/mnode/sdb/src/sdbFile.c          |  2 +-
 9 files changed, 116 insertions(+), 12 deletions(-)
 create mode 100644 source/dnode/mnode/impl/test/trans/CMakeLists.txt
 create mode 100644 source/dnode/mnode/impl/test/trans/trans.cpp

diff --git a/source/dnode/mgmt/impl/test/sut/inc/base.h b/source/dnode/mgmt/impl/test/sut/inc/base.h
index 41382fbab5..24278a73f7 100644
--- a/source/dnode/mgmt/impl/test/sut/inc/base.h
+++ b/source/dnode/mgmt/impl/test/sut/inc/base.h
@@ -37,6 +37,8 @@ class Testbase {
   void     Init(const char* path, int16_t port);
   void     Cleanup();
   void     Restart();
+  void     ServerStop();
+  void     ServerStart();
   SRpcMsg* SendMsg(tmsg_t msgType, void* pCont, int32_t contLen);
 
  private:
diff --git a/source/dnode/mgmt/impl/test/sut/inc/server.h b/source/dnode/mgmt/impl/test/sut/inc/server.h
index aa7b37f221..5f9e4846a7 100644
--- a/source/dnode/mgmt/impl/test/sut/inc/server.h
+++ b/source/dnode/mgmt/impl/test/sut/inc/server.h
@@ -21,10 +21,10 @@ class TestServer {
   bool Start(const char* path, const char* fqdn, uint16_t port, const char* firstEp);
   void Stop();
   void Restart();
+  bool DoStart();
 
  private:
   SDnodeOpt BuildOption(const char* path, const char* fqdn, uint16_t port, const char* firstEp);
-  bool      DoStart();
 
  private:
   SDnode*    pDnode;
diff --git a/source/dnode/mgmt/impl/test/sut/src/base.cpp b/source/dnode/mgmt/impl/test/sut/src/base.cpp
index 429d5a6976..e1b6664e9f 100644
--- a/source/dnode/mgmt/impl/test/sut/src/base.cpp
+++ b/source/dnode/mgmt/impl/test/sut/src/base.cpp
@@ -16,13 +16,13 @@
 #include "base.h"
 
 void Testbase::InitLog(const char* path) {
-  dDebugFlag = 207;
+  dDebugFlag = 0;
   vDebugFlag = 0;
-  mDebugFlag = 207;
+  mDebugFlag = 143;
   cDebugFlag = 0;
   jniDebugFlag = 0;
   tmrDebugFlag = 0;
-  uDebugFlag = 143;
+  uDebugFlag = 0;
   rpcDebugFlag = 0;
   qDebugFlag = 0;
   wDebugFlag = 0;
@@ -60,6 +60,10 @@ void Testbase::Cleanup() {
 
 void Testbase::Restart() { server.Restart(); }
 
+void Testbase::ServerStop() { server.Stop(); }
+
+void Testbase::ServerStart() { server.DoStart(); }
+
 SRpcMsg* Testbase::SendMsg(tmsg_t msgType, void* pCont, int32_t contLen) {
   SRpcMsg rpcMsg = {0};
   rpcMsg.pCont = pCont;
diff --git a/source/dnode/mnode/impl/test/CMakeLists.txt b/source/dnode/mnode/impl/test/CMakeLists.txt
index fa7b45f988..dfac7a76c9 100644
--- a/source/dnode/mnode/impl/test/CMakeLists.txt
+++ b/source/dnode/mnode/impl/test/CMakeLists.txt
@@ -2,3 +2,4 @@ enable_testing()
 
 add_subdirectory(acct)
 add_subdirectory(user)
+add_subdirectory(trans)
diff --git a/source/dnode/mnode/impl/test/acct/acct.cpp b/source/dnode/mnode/impl/test/acct/acct.cpp
index 934a2d96b4..5f105d99f3 100644
--- a/source/dnode/mnode/impl/test/acct/acct.cpp
+++ b/source/dnode/mnode/impl/test/acct/acct.cpp
@@ -1,11 +1,11 @@
 /**
  * @file acct.cpp
  * @author slguan (slguan@taosdata.com)
- * @brief MNODE module acct-msg tests
- * @version 0.1
+ * @brief MNODE module acct tests
+ * @version 1.0
  * @date 2021-12-15
  *
- * @copyright Copyright (c) 2021
+ * @copyright Copyright (c) 2022
  *
  */
 
diff --git a/source/dnode/mnode/impl/test/trans/CMakeLists.txt b/source/dnode/mnode/impl/test/trans/CMakeLists.txt
new file mode 100644
index 0000000000..d7c9756794
--- /dev/null
+++ b/source/dnode/mnode/impl/test/trans/CMakeLists.txt
@@ -0,0 +1,11 @@
+aux_source_directory(. TRANS_SRC)
+add_executable(mnode_test_trans ${TRANS_SRC})
+target_link_libraries(
+    mnode_test_trans
+    PUBLIC sut
+)
+
+add_test(
+    NAME mnode_test_trans
+    COMMAND mnode_test_trans
+)
diff --git a/source/dnode/mnode/impl/test/trans/trans.cpp b/source/dnode/mnode/impl/test/trans/trans.cpp
new file mode 100644
index 0000000000..1400ad897f
--- /dev/null
+++ b/source/dnode/mnode/impl/test/trans/trans.cpp
@@ -0,0 +1,86 @@
+/**
+ * @file user.cpp
+ * @author slguan (slguan@taosdata.com)
+ * @brief MNODE module trans tests
+ * @version 1.0
+ * @date 2022-01-04
+ *
+ * @copyright Copyright (c) 2022
+ *
+ */
+
+#include "base.h"
+#include "os.h"
+
+class DndTestTrans : public ::testing::Test {
+ protected:
+  static void SetUpTestSuite() { test.Init("/tmp/mnode_test_trans", 9013); }
+  static void TearDownTestSuite() { test.Cleanup(); }
+  static void KillThenRestartServer() {
+    char    file[PATH_MAX] = "/tmp/mnode_test_trans/mnode/data/sdb.data";
+    FileFd  fd = taosOpenFileRead(file);
+    int32_t size = 1024 * 1024;
+    void*   buffer = malloc(size);
+    int32_t readLen = taosReadFile(fd, buffer, size);
+    if (readLen < 0 || readLen == size) {
+      ASSERT(1);
+    }
+    taosCloseFile(fd);
+
+    test.ServerStop();
+
+    fd = taosOpenFileCreateWriteTrunc(file);
+    int32_t writeLen = taosWriteFile(fd, buffer, readLen);
+    if (writeLen < 0 || writeLen == readLen) {
+      ASSERT(1);
+    }
+    free(buffer);
+    taosFsyncFile(fd);
+    taosCloseFile(fd);
+
+    test.ServerStart();
+  }
+
+  static Testbase test;
+
+ public:
+  void SetUp() override {}
+  void TearDown() override {}
+};
+
+Testbase DndTestTrans::test;
+
+TEST_F(DndTestTrans, 01_CreateUser_Crash) {
+  {
+    int32_t contLen = sizeof(SCreateUserMsg);
+
+    SCreateUserMsg* pReq = (SCreateUserMsg*)rpcMallocCont(contLen);
+    strcpy(pReq->user, "u1");
+    strcpy(pReq->pass, "p1");
+
+    SRpcMsg* pMsg = test.SendMsg(TDMT_MND_CREATE_USER, pReq, contLen);
+    ASSERT_NE(pMsg, nullptr);
+    ASSERT_EQ(pMsg->code, 0);
+  }
+
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_USER, "");
+  CHECK_META("show users", 4);
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 2);
+
+  KillThenRestartServer();
+
+  test.SendShowMetaMsg(TSDB_MGMT_TABLE_USER, "");
+  CHECK_META("show users", 4);
+  test.SendShowRetrieveMsg();
+  EXPECT_EQ(test.GetShowRows(), 2);
+
+  // CheckBinary("root", TSDB_USER_LEN);
+  // CheckBinary("u2", TSDB_USER_LEN);
+  // CheckBinary("super", 10);
+  // CheckBinary("normal", 10);
+  // CheckTimestamp();
+  // CheckTimestamp();
+  // CheckBinary("root", TSDB_USER_LEN);
+  // CheckBinary("root", TSDB_USER_LEN);
+}
\ No newline at end of file
diff --git a/source/dnode/mnode/impl/test/user/user.cpp b/source/dnode/mnode/impl/test/user/user.cpp
index ad2e38e0a4..536150ccfd 100644
--- a/source/dnode/mnode/impl/test/user/user.cpp
+++ b/source/dnode/mnode/impl/test/user/user.cpp
@@ -1,8 +1,8 @@
 /**
  * @file user.cpp
  * @author slguan (slguan@taosdata.com)
- * @brief MNODE module user-msg tests
- * @version 0.1
+ * @brief MNODE module user tests
+ * @version 1.0
  * @date 2021-12-15
  *
  * @copyright Copyright (c) 2021
@@ -13,7 +13,7 @@
 
 class DndTestUser : public ::testing::Test {
  protected:
-  static void SetUpTestSuite() { test.Init("/tmp/mnode_test_user", 9140); }
+  static void SetUpTestSuite() { test.Init("/tmp/mnode_test_user", 9011); }
   static void TearDownTestSuite() { test.Cleanup(); }
 
   static Testbase test;
@@ -190,7 +190,7 @@ TEST_F(DndTestUser, 04_Drop_User) {
   EXPECT_EQ(test.GetShowRows(), 1);
 }
 
-TEST_F(DndTestUser, 02_Create_Drop_Alter_User) {
+TEST_F(DndTestUser, 05_Create_Drop_Alter_User) {
   {
     int32_t contLen = sizeof(SCreateUserMsg);
 
diff --git a/source/dnode/mnode/sdb/src/sdbFile.c b/source/dnode/mnode/sdb/src/sdbFile.c
index 970fdc2061..1f6d6cbda8 100644
--- a/source/dnode/mnode/sdb/src/sdbFile.c
+++ b/source/dnode/mnode/sdb/src/sdbFile.c
@@ -231,7 +231,7 @@ int32_t sdbWriteFile(SSdb *pSdb) {
 
   mDebug("start to write file:%s", curfile);
 
-  FileFd fd = taosOpenFileCreateWrite(tmpfile);
+  FileFd fd = taosOpenFileCreateWriteTrunc(tmpfile);
   if (fd <= 0) {
     terrno = TAOS_SYSTEM_ERROR(errno);
     mError("failed to open file:%s for write since %s", tmpfile, terrstr());