fix: add debug info

source/libs/transport/inc/transComm.h

@@ -318,6 +318,7 @@ void transDQDestroy(SDelayQueue* queue);
 
 int transDQSched(SDelayQueue* queue, void (*func)(void* arg), void* arg, uint64_t timeoutMs);
 
+void transPrintEpSet(SEpSet* pEpSet);
 /*
  * init global func
  */

source/libs/transport/src/transCli.c

@@ -921,6 +921,8 @@ int cliAppCb(SCliConn* pConn, STransMsg* pResp, SCliMsg* pMsg) {
 
   STransConnCtx* pCtx = pMsg->ctx;
   SEpSet*        pEpSet = &pCtx->epSet;
+  transPrintEpSet(pEpSet);
+
   /*
    * upper layer handle retry if code equal TSDB_CODE_RPC_NETWORK_UNAVAIL
    */
@@ -972,7 +974,11 @@ int cliAppCb(SCliConn* pConn, STransMsg* pResp, SCliMsg* pMsg) {
     pCtx->pRsp = NULL;
   } else {
     tTrace("%s cli conn %p handle resp", pTransInst->label, pConn);
-    pTransInst->cfp(pTransInst->parent, pResp, pEpSet);
+    if (pResp->code != 0) {
+      pTransInst->cfp(pTransInst->parent, pResp, NULL);
+    } else {
+      pTransInst->cfp(pTransInst->parent, pResp, pEpSet);
+    }
   }
   return 0;
 }

source/libs/transport/src/transComm.c

@@ -446,4 +446,16 @@ int transDQSched(SDelayQueue* queue, void (*func)(void* arg), void* arg, uint64_
   uv_timer_start(queue->timer, transDQTimeout, timeoutMs, 0);
   return 0;
 }
+
+void transPrintEpSet(SEpSet* pEpSet) {
+  if (pEpSet == NULL) {
+    tTrace("NULL epset");
+    return;
+  }
+  tTrace("epset begin: inUse: %d", pEpSet->inUse);
+  for (int i = 0; i < pEpSet->numOfEps; i++) {
+    tTrace("ip: %s, port: %d", pEpSet->eps[i].fqdn, pEpSet->eps[i].port);
+  }
+  tTrace("epset end");
+}
 #endif