diff --git a/source/libs/index/src/index.c b/source/libs/index/src/index.c
index 5a8ab52d25..85582452bb 100644
--- a/source/libs/index/src/index.c
+++ b/source/libs/index/src/index.c
@@ -212,6 +212,7 @@ void idxReleaseRef(int64_t ref) {
 
 int32_t indexPut(SIndex* index, SIndexMultiTerm* fVals, uint64_t uid) {
   // TODO(yihao): reduce the lock range
+  int32_t code = 0;
   (void)taosThreadMutexLock(&index->mtx);
   for (int i = 0; i < taosArrayGetSize(fVals); i++) {
     SIndexTerm* p = taosArrayGetP(fVals, i);
@@ -223,11 +224,19 @@ int32_t indexPut(SIndex* index, SIndexMultiTerm* fVals, uint64_t uid) {
     IndexCache** cache = taosHashGet(index->colObj, buf, sz);
     if (cache == NULL) {
       IndexCache* pCache = idxCacheCreate(index, p->suid, p->colName, p->colType);
-      (void)taosHashPut(index->colObj, buf, sz, &pCache, sizeof(void*));
+      code = taosHashPut(index->colObj, buf, sz, &pCache, sizeof(void*));
+      if (code != 0) {
+        idxCacheDestroy(pCache);
+        break;
+      }
     }
   }
   (void)taosThreadMutexUnlock(&index->mtx);
 
+  if (code != 0) {
+    return code;
+  }
+
   for (int i = 0; i < taosArrayGetSize(fVals); i++) {
     SIndexTerm* p = taosArrayGetP(fVals, i);
 
diff --git a/source/libs/index/src/indexFst.c b/source/libs/index/src/indexFst.c
index f98d5fd125..0e1cbb6221 100644
--- a/source/libs/index/src/indexFst.c
+++ b/source/libs/index/src/indexFst.c
@@ -1366,11 +1366,18 @@ FStmBuilder* stmBuilderCreate(Fst* fst, FAutoCtx* aut) {
   b->aut = aut;
   b->min = fstBoundStateCreate(Unbounded, NULL);
   b->max = fstBoundStateCreate(Unbounded, NULL);
+
+  if (b->min == NULL || b->max == NULL) {
+    stmBuilderDestroy(b);
+    return NULL;
+  }
+
   return b;
 }
 void stmBuilderDestroy(FStmBuilder* b) {
-  fstSliceDestroy(&b->min->data);
-  fstSliceDestroy(&b->max->data);
+  if (b->min) fstSliceDestroy(&b->min->data);
+  if (b->max) fstSliceDestroy(&b->max->data);
+
   taosMemoryFreeClear(b->min);
   taosMemoryFreeClear(b->max);
   taosMemoryFree(b);
diff --git a/source/libs/index/src/indexTfile.c b/source/libs/index/src/indexTfile.c
index 598ecb5f1c..cdaa5bfb7c 100644
--- a/source/libs/index/src/indexTfile.c
+++ b/source/libs/index/src/indexTfile.c
@@ -97,6 +97,11 @@ TFileCache* tfileCacheCreate(SIndex* idx, const char* path) {
   }
 
   tcache->tableCache = taosHashInit(8, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
+  if (tcache->tableCache == NULL) {
+    indexError("failed to open table cache since%s", tstrerror(terrno));
+    goto End;
+  }
+
   tcache->capacity = 64;
 
   SArray* files = NULL;
@@ -126,8 +131,11 @@ TFileCache* tfileCacheCreate(SIndex* idx, const char* path) {
 
     char    buf[128] = {0};
     int32_t sz = idxSerialCacheKey(&key, buf);
-    (void)taosHashPut(tcache->tableCache, buf, sz, &reader, sizeof(void*));
-    tfileReaderRef(reader);
+    code = taosHashPut(tcache->tableCache, buf, sz, &reader, sizeof(void*));
+    if (code != 0) {
+      tfileReaderRef(reader);
+      goto End;
+    }
   }
   taosArrayDestroyEx(files, tfileDestroyFileName);
   return tcache;
@@ -173,10 +181,14 @@ int32_t tfileCachePut(TFileCache* tcache, ICacheKey* key, TFileReader* reader) {
   TFileReader** p = taosHashGet(tcache->tableCache, buf, sz);
   if (p != NULL && *p != NULL) {
     TFileReader* oldRdr = *p;
-    (void)taosHashRemove(tcache->tableCache, buf, sz);
-    indexInfo("found %s, should remove file %s", buf, oldRdr->ctx->file.buf);
-    oldRdr->remove = true;
-    tfileReaderUnRef(oldRdr);
+    if ((code = taosHashRemove(tcache->tableCache, buf, sz)) != 0) {
+      indexError("failed to remove old reader from cache since %s, suid:%" PRIu64 ", colName:%s", tstrerror(code),
+                 oldRdr->header.suid, oldRdr->header.colName);
+    } else {
+      indexInfo("found %s, should remove file %s", buf, oldRdr->ctx->file.buf);
+      oldRdr->remove = true;
+      tfileReaderUnRef(oldRdr);
+    }
   }
 
   code = taosHashPut(tcache->tableCache, buf, sz, &reader, sizeof(void*));
@@ -267,8 +279,16 @@ static int32_t tfSearchPrefix(void* reader, SIndexTerm* tem, SIdxTRslt* tr) {
   uint64_t sz = tem->nColVal;
 
   SArray* offsets = taosArrayInit(16, sizeof(uint64_t));
+  if (offsets == NULL) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+
+  FAutoCtx* ctx = automCtxCreate((void*)p, AUTOMATION_PREFIX);
+  if (ctx == NULL) {
+    taosArrayDestroy(offsets);
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
 
-  FAutoCtx*    ctx = automCtxCreate((void*)p, AUTOMATION_PREFIX);
   FStmBuilder* sb = fstSearch(((TFileReader*)reader)->fst, ctx);
   FStmSt*      st = stmBuilderIntoStm(sb);
   FStmStRslt*  rt = NULL;