diff --git a/source/libs/stream/inc/streamBackendRocksdb.h b/source/libs/stream/inc/streamBackendRocksdb.h
index eac7e10a4ec7614fbdcaffb340592a4d8269b38f..5d2970a4b70cb2ec68cb6c069d393513757871d4 100644
--- a/source/libs/stream/inc/streamBackendRocksdb.h
+++ b/source/libs/stream/inc/streamBackendRocksdb.h
@@ -44,6 +44,7 @@ typedef struct {
   SList*                             list;
   TdThreadMutex                      cfMutex;
   SHashObj*                          cfInst;
+  int64_t                            defaultCfInit;
 } SBackendHandle;
 
 void*      streamBackendInit(const char* path);
diff --git a/source/libs/stream/src/streamBackendRocksdb.c b/source/libs/stream/src/streamBackendRocksdb.c
index 9599c0e2140229602f22efc692a0b6b30eaf4317..793c6a4e1f036c21964d85f6b46e56ad69b6991a 100644
--- a/source/libs/stream/src/streamBackendRocksdb.c
+++ b/source/libs/stream/src/streamBackendRocksdb.c
@@ -33,7 +33,9 @@ typedef struct {
   SListNode*                       pCompareNode;
 } RocksdbCfInst;
 
-RocksdbCfInst* streamStateOpenBackendCf(void* backend, char* name, char* idstr);
+int32_t streamStateOpenBackendCf(void* backend, char* name, SHashObj* ids);
+
+void destroyRocksdbCfInst(RocksdbCfInst* inst);
 
 void          destroyCompactFilteFactory(void* arg);
 void          destroyCompactFilte(void* arg);
@@ -100,7 +102,7 @@ void* streamBackendInit(const char* path) {
   size_t nCf = 0;
 
   char** cfs = rocksdb_list_column_families(opts, path, &nCf, &err);
-  if (nCf == 0 || err != NULL) {
+  if (nCf == 0 || nCf == 1 || err != NULL) {
     taosMemoryFreeClear(err);
     pHandle->db = rocksdb_open(opts, path, &err);
     if (err != NULL) {
@@ -117,24 +119,18 @@ void* streamBackendInit(const char* path) {
       if (3 == sscanf(cf, "0x%" PRIx64 "-%d_%s", &streamId, &taskId, suffix)) {
         char idstr[128] = {0};
         sprintf(idstr, "0x%" PRIx64 "-%d", streamId, taskId);
-        if (taosHashGet(tbl, idstr, strlen(idstr)) != NULL) {
-          taosHashPut(tbl, idstr, strlen(idstr), &dummpy, sizeof(dummpy));
+        // qError("make cf name %s", idstr);
+        if (taosHashGet(tbl, idstr, strlen(idstr) + 1) == NULL) {
+          taosHashPut(tbl, idstr, strlen(idstr) + 1, &dummpy, sizeof(dummpy));
         }
       } else {
         continue;
       }
     }
-    void* pIter = taosHashIterate(tbl, NULL);
-    while (pIter != NULL) {
-      size_t         keyLen = 0;
-      char*          key = taosHashGetKey(pIter, &keyLen);
-      RocksdbCfInst* inst = streamStateOpenBackendCf(pHandle, (char*)path, key);
-      taosHashPut(pHandle->cfInst, key, keyLen, &inst, sizeof(void*));
-
-      taosHashIterate(tbl, pIter);
-    }
+    streamStateOpenBackendCf(pHandle, (char*)path, tbl);
     taosHashCleanup(tbl);
   }
+  rocksdb_list_column_families_destroy(cfs, nCf);
 
   return (void*)pHandle;
 _EXIT:
@@ -151,6 +147,13 @@ _EXIT:
 }
 void streamBackendCleanup(void* arg) {
   SBackendHandle* pHandle = (SBackendHandle*)arg;
+  RocksdbCfInst** pIter = (RocksdbCfInst**)taosHashIterate(pHandle->cfInst, NULL);
+  while (pIter != NULL) {
+    RocksdbCfInst* inst = *pIter;
+    destroyRocksdbCfInst(inst);
+    taosHashIterate(pHandle->cfInst, pIter);
+  }
+  taosHashCleanup(pHandle->cfInst);
 
   rocksdb_flushoptions_t* flushOpt = rocksdb_flushoptions_create();
   char*                   err = NULL;
@@ -176,7 +179,6 @@ void streamBackendCleanup(void* arg) {
   // rocksdb_compactionfilterfactory_destroy(pHandle->filterFactory);
   tdListFree(pHandle->list);
   taosThreadMutexDestroy(&pHandle->cfMutex);
-  taosHashCleanup(pHandle->cfInst);
 
   taosMemoryFree(pHandle);
 
@@ -669,22 +671,56 @@ rocksdb_compactionfilter_t* compactFilteFactoryCreateFilter(void* arg, rocksdb_c
   return filter;
 }
 
-RocksdbCfInst* streamStateOpenBackendCf(void* backend, char* name, char* idstr) {
-  // qInfo("start to open backend cf, %p 0x%" PRIx64 "-%d", pState, pState->streamId, pState->taskId);
-  SBackendHandle* handle = backend;
-
-  char*  err = NULL;
-  int    cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);
-  char** cfNames = taosMemoryCalloc(cfLen, sizeof(char*));
+void destroyRocksdbCfInst(RocksdbCfInst* inst) {
+  int cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);
   for (int i = 0; i < cfLen; i++) {
-    cfNames[i] = taosMemoryCalloc(1, 128);
-    GEN_COLUMN_FAMILY_NAME(cfNames[i], idstr, ginitDict[i].key);
+    rocksdb_column_family_handle_destroy(inst->pHandle[i]);
   }
 
-  RocksdbCfParam*           param = taosMemoryCalloc(cfLen, sizeof(RocksdbCfParam));
-  const rocksdb_options_t** cfOpt = taosMemoryCalloc(cfLen, sizeof(rocksdb_options_t*));
-  for (int i = 0; i < cfLen; i++) {
-    cfOpt[i] = rocksdb_options_create_copy(handle->dbOpt);
+  rocksdb_writeoptions_destroy(inst->wOpt);
+  inst->wOpt = NULL;
+
+  rocksdb_readoptions_destroy(inst->rOpt);
+  taosMemoryFree(inst->cfOpt);
+  taosMemoryFree(inst->param);
+  taosMemoryFreeClear(inst->param);
+  taosMemoryFree(inst);
+}
+
+int32_t streamStateOpenBackendCf(void* backend, char* name, SHashObj* ids) {
+  SBackendHandle* handle = backend;
+  char*           err = NULL;
+  size_t          nSize = taosHashGetSize(ids);
+  int             cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);
+
+  char** cfNames = taosMemoryCalloc(nSize * cfLen + 1, sizeof(char*));
+  void*  pIter = taosHashIterate(ids, NULL);
+  size_t keyLen = 0;
+  char*  idstr = taosHashGetKey(pIter, &keyLen);
+  for (int i = 0; i < nSize * cfLen + 1; i++) {
+    cfNames[i] = (char*)taosMemoryCalloc(1, 128);
+    if (i == 0) {
+      memcpy(cfNames[0], "default", strlen("default"));
+      continue;
+    }
+    qError("cf name %s", idstr);
+
+    GEN_COLUMN_FAMILY_NAME(cfNames[i], idstr, ginitDict[(i - 1) % (cfLen)].key);
+    if (i % cfLen == 0) {
+      pIter = taosHashIterate(ids, pIter);
+      if (pIter != NULL) idstr = taosHashGetKey(pIter, &keyLen);
+    }
+  }
+  for (int i = 0; i < nSize * cfLen + 1; i++) {
+    qError("cf name %s", cfNames[i]);
+  }
+  rocksdb_options_t** cfOpts = taosMemoryCalloc(nSize * cfLen + 1, sizeof(rocksdb_options_t*));
+  RocksdbCfParam*     params = taosMemoryCalloc(nSize * cfLen + 1, sizeof(RocksdbCfParam*));
+  for (int i = 0; i < nSize * cfLen + 1; i++) {
+    cfOpts[i] = rocksdb_options_create_copy(handle->dbOpt);
+    if (i == 0) {
+      continue;
+    }
     // refactor later
     rocksdb_block_based_table_options_t* tableOpt = rocksdb_block_based_options_create();
     rocksdb_block_based_options_set_block_cache(tableOpt, handle->cache);
@@ -692,45 +728,77 @@ RocksdbCfInst* streamStateOpenBackendCf(void* backend, char* name, char* idstr)
     rocksdb_filterpolicy_t* filter = rocksdb_filterpolicy_create_bloom(15);
     rocksdb_block_based_options_set_filter_policy(tableOpt, filter);
 
-    rocksdb_options_set_block_based_table_factory((rocksdb_options_t*)cfOpt[i], tableOpt);
-
-    param[i].tableOpt = tableOpt;
+    rocksdb_options_set_block_based_table_factory((rocksdb_options_t*)cfOpts[i], tableOpt);
+    params[i].tableOpt = tableOpt;
   };
 
-  rocksdb_comparator_t** pCompare = taosMemoryCalloc(cfLen, sizeof(rocksdb_comparator_t**));
-  for (int i = 0; i < cfLen; i++) {
-    SCfInit* cf = &ginitDict[i];
+  rocksdb_comparator_t** pCompare = taosMemoryCalloc(nSize * cfLen + 1, sizeof(rocksdb_comparator_t**));
+  for (int i = 0; i < nSize * cfLen + 1; i++) {
+    if (i == 0) {
+      continue;
+    }
+    SCfInit* cf = &ginitDict[(i - 1) % cfLen];
 
     rocksdb_comparator_t* compare = rocksdb_comparator_create(NULL, cf->detroyFunc, cf->cmpFunc, cf->cmpName);
-    rocksdb_options_set_comparator((rocksdb_options_t*)cfOpt[i], compare);
+    rocksdb_options_set_comparator((rocksdb_options_t*)cfOpts[i], compare);
     pCompare[i] = compare;
   }
-  rocksdb_column_family_handle_t** cfHandle = taosMemoryCalloc(cfLen, sizeof(rocksdb_column_family_handle_t*));
-  rocksdb_t* db = rocksdb_open_column_families(handle->dbOpt, name, cfLen, (const char* const*)cfNames,
-                                               (const rocksdb_options_t* const*)cfOpt, cfHandle, &err);
+  rocksdb_column_family_handle_t** cfHandle =
+      taosMemoryCalloc(nSize * cfLen + 1, sizeof(rocksdb_column_family_handle_t*));
+  rocksdb_t* db = rocksdb_open_column_families(handle->dbOpt, name, nSize * cfLen + 1, (const char* const*)cfNames,
+                                               (const rocksdb_options_t* const*)cfOpts, cfHandle, &err);
   if (err != NULL) {
     qError("failed to open rocksdb cf, reason:%s", err);
     taosMemoryFree(err);
   } else {
     qDebug("succ to open rocksdb cf, reason:%s", err);
   }
-  RocksdbCfInst* inst = taosMemoryCalloc(1, sizeof(RocksdbCfInst));
-
-  inst->db = db;
-  inst->pHandle = cfHandle;
-  inst->wOpt = rocksdb_writeoptions_create();
-  inst->rOpt = rocksdb_readoptions_create();
-  inst->cfOpt = (rocksdb_options_t**)cfOpt;
-  inst->dbOpt = handle->dbOpt;
-  inst->param = param;
-  inst->pBackendHandle = handle;
 
-  handle->db = db;
+  pIter = taosHashIterate(ids, NULL);
+  idstr = taosHashGetKey(pIter, &keyLen);
+  for (int i = 0; i < nSize; i++) {
+    RocksdbCfInst*                   inst = taosMemoryCalloc(1, sizeof(RocksdbCfInst));
+    rocksdb_column_family_handle_t** subCf = taosMemoryCalloc(cfLen, sizeof(rocksdb_column_family_handle_t*));
+    rocksdb_comparator_t**           subCompare = taosMemoryCalloc(cfLen, sizeof(rocksdb_comparator_t*));
+    RocksdbCfParam*                  subParam = taosMemoryCalloc(cfLen, sizeof(RocksdbCfParam));
+    rocksdb_options_t**              subOpt = taosMemoryCalloc(cfLen, sizeof(rocksdb_options_t*));
+    for (int j = 0; j < cfLen; j++) {
+      subCf[j] = cfHandle[i * cfLen + j + 1];
+      subCompare[j] = pCompare[i * cfLen + j + 1];
+      subParam[j] = params[i * cfLen + j + 1];
+      subOpt[j] = cfOpts[i * cfLen + j + 1];
+    }
+    inst->db = db;
+    inst->pHandle = subCf;
+    inst->wOpt = rocksdb_writeoptions_create();
+    inst->rOpt = rocksdb_readoptions_create();
+    inst->cfOpt = (rocksdb_options_t**)subOpt;
+    inst->dbOpt = handle->dbOpt;
+    inst->param = subParam;
+    inst->pBackendHandle = handle;
+    handle->db = db;
+    SCfComparator compare = {.comp = subCompare, .numOfComp = cfLen};
+    inst->pCompareNode = streamBackendAddCompare(handle, &compare);
+    rocksdb_writeoptions_disable_WAL(inst->wOpt, 1);
+
+    taosHashPut(handle->cfInst, idstr, keyLen, &inst, sizeof(void*));
+
+    pIter = taosHashIterate(ids, pIter);
+    if (pIter != NULL) idstr = taosHashGetKey(pIter, &keyLen);
+  }
+  rocksdb_column_family_handle_destroy(cfHandle[0]);
+  rocksdb_options_destroy(cfOpts[0]);
+
+  for (int i = 0; i < nSize * cfLen + 1; i++) {
+    taosMemoryFree(cfNames[i]);
+  }
+  taosMemoryFree(cfNames);
+  taosMemoryFree(cfHandle);
+  taosMemoryFree(pCompare);
+  taosMemoryFree(params);
+  taosMemoryFree(cfOpts);
 
-  SCfComparator compare = {.comp = pCompare, .numOfComp = cfLen};
-  inst->pCompareNode = streamBackendAddCompare(handle, &compare);
-  rocksdb_writeoptions_disable_WAL(inst->wOpt, 1);
-  return inst;
+  return 0;
 }
 int streamStateOpenBackend(void* backend, SStreamState* pState) {
   qInfo("start to open backend, %p 0x%" PRIx64 "-%d", pState, pState->streamId, pState->taskId);
@@ -738,7 +806,7 @@ int streamStateOpenBackend(void* backend, SStreamState* pState) {
 
   sprintf(pState->pTdbState->idstr, "0x%" PRIx64 "-%d", pState->streamId, pState->taskId);
   taosThreadMutexLock(&handle->cfMutex);
-  RocksdbCfInst** ppInst = taosHashGet(handle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr));
+  RocksdbCfInst** ppInst = taosHashGet(handle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr) + 1);
   if (ppInst != NULL && *ppInst != NULL) {
     RocksdbCfInst* inst = *ppInst;
     pState->pTdbState->rocksdb = inst->db;
@@ -812,13 +880,14 @@ int streamStateOpenBackend(void* backend, SStreamState* pState) {
 void streamStateCloseBackend(SStreamState* pState, bool remove) {
   SBackendHandle* pHandle = pState->pTdbState->pBackendHandle;
   taosThreadMutexLock(&pHandle->cfMutex);
-  RocksdbCfInst** ppInst = taosHashGet(pHandle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr));
+  RocksdbCfInst** ppInst = taosHashGet(pHandle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr) + 1);
   if (ppInst != NULL && *ppInst != NULL) {
     RocksdbCfInst* inst = *ppInst;
     taosMemoryFree(inst);
-    taosHashRemove(pHandle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr));
+    taosHashRemove(pHandle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr) + 1);
   }
   taosThreadMutexUnlock(&pHandle->cfMutex);
+
   char* status[] = {"close", "drop"};
   qInfo("start to %s backend, %p, 0x%" PRIx64 "-%d", status[remove == false ? 0 : 1], pState, pState->streamId,
         pState->taskId);
diff --git a/source/libs/stream/src/streamMeta.c b/source/libs/stream/src/streamMeta.c
index 0ec8f0458a33d68e30b7ab09cef068a0fff69c62..2b5be9b3e430e781ffdefa6f6e43a799b4b6f0a2 100644
--- a/source/libs/stream/src/streamMeta.c
+++ b/source/libs/stream/src/streamMeta.c
@@ -94,6 +94,7 @@ _err:
   if (pMeta->db) tdbClose(pMeta->db);
   // if (pMeta->streamBackend) streamBackendCleanup(pMeta->streamBackend);
   taosMemoryFree(pMeta);
+  qError("failed to open stream meta");
   return NULL;
 }