diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 7ff3e500cf..f0cb30e7e0 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -488,6 +488,7 @@ int32_t  taosGetErrSize();
 //mnode-compact
 #define TSDB_CODE_MND_INVALID_COMPACT_ID        TAOS_DEF_ERROR_CODE(0, 0x04B1)
 #define TSDB_CODE_MND_COMPACT_DETAIL_NOT_EXIST  TAOS_DEF_ERROR_CODE(0, 0x04B2)
+#define TSDB_CODE_MND_COMPACT_ALREADY_EXIST     TAOS_DEF_ERROR_CODE(0, 0x04B3)
 
 // vnode
 // #define TSDB_CODE_VND_ACTION_IN_PROGRESS     TAOS_DEF_ERROR_CODE(0, 0x0500) // 2.x
diff --git a/source/dnode/mnode/impl/src/mndCompact.c b/source/dnode/mnode/impl/src/mndCompact.c
index da01a4b2f6..5a789ee369 100644
--- a/source/dnode/mnode/impl/src/mndCompact.c
+++ b/source/dnode/mnode/impl/src/mndCompact.c
@@ -523,6 +523,10 @@ static int32_t mndUpdateCompactProgress(SMnode *pMnode, SRpcMsg *pReq, int32_t c
 int32_t mndProcessQueryCompactRsp(SRpcMsg *pReq) {
   int32_t                  code = 0;
   SQueryCompactProgressRsp req = {0};
+  if (pReq->code != 0) {
+    mError("received wrong compact response, req code is %d", pReq->code);
+    TAOS_RETURN(pReq->code);
+  }
   code = tDeserializeSQueryCompactProgressRsp(pReq->pCont, pReq->contLen, &req);
   if (code != 0) {
     mError("failed to deserialize vnode-query-compact-progress-rsp, ret:%d, pCont:%p, len:%d", code, pReq->pCont,
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index a0c3b3f766..e9bdafcd5a 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -357,6 +357,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_VIEW_NOT_EXIST,           "view not exists in db
 //mnode-compact
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_COMPACT_ID,       "Invalid compact id")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_COMPACT_DETAIL_NOT_EXIST, "compact detail doesn't exist")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_COMPACT_ALREADY_EXIST,    "compact already exist")
 
 // dnode
 TAOS_DEFINE_ERROR(TSDB_CODE_DNODE_OFFLINE,                "Dnode is offline")