diff --git a/aw/cxx/distributed/distributed_major.cpp b/aw/cxx/distributed/distributed_major.cpp
index 87a243e9c16dbdfc1baba632d892b07d7ed51a4a..71163382d6006c5dc2e3219100facbc116b5f62c 100644
--- a/aw/cxx/distributed/distributed_major.cpp
+++ b/aw/cxx/distributed/distributed_major.cpp
@@ -48,9 +48,9 @@ DistributeTestEnvironment::DistributeTestEnvironment() : serverPort_(DEFAULT_AGE
 {
 }
 
-DistributeTestEnvironment::DistributeTestEnvironment(std::string cfgInfo) : serverPort_(DEFAULT_AGENT_PORT)
+DistributeTestEnvironment::DistributeTestEnvironment(std::string cfgFile) : serverPort_(DEFAULT_AGENT_PORT)
 {
-    Init(cfgInfo);
+    Init(cfgFile);
 }
 
 void DistributeTestEnvironment::Init(std::string fileName)
@@ -251,8 +251,10 @@ bool DistributeTestEnvironment::RunTestCmd(size_t devNo, const std::string &strC
     bool breturn = false;
     size_t lenptr = 0;
     errno_t ret = EOK;
-    (void)memset_s(szbuf, MAX_BUFF_LEN, 0, MAX_BUFF_LEN);
-
+    ret = memset_s(szbuf, sizeof(szbuf), 0, MAX_BUFF_LEN);
+    if (ret != EOK) {
+        return breturn;
+    }
     // add 2 '\0'
     size_t rlen = cmdLen + expectValueLen + DST_COMMAND_HEAD_LEN + sizeof(int)*HALF_BUF_LEN + HALF_BUF_LEN;
     if (rlen <= MAX_BUFF_LEN) {
diff --git a/examples/distributedb/test/distributedtest/common/distribute_demo_agent.cpp b/examples/distributedb/test/distributedtest/common/distribute_demo_agent.cpp
index 95dab2bc559b84e81ae266e7a1548826e1161287..e62b8db5756719a9079541e88f06d45985f60068 100644
--- a/examples/distributedb/test/distributedtest/common/distribute_demo_agent.cpp
+++ b/examples/distributedb/test/distributedtest/common/distribute_demo_agent.cpp
@@ -104,7 +104,7 @@ bool DistributeDemoAgent::TearDown()
 
 // The entry of handlingthe major test case message
 int DistributeDemoAgent::OnProcessMsg(const std::string &strMsg, int len,
-    std::string &strReturnValue, int returnValueLen)
+    std::string &strReturnValue, int returnBufLen)
 {
     int nret = 0;
     std::string returnStr = "agent return message.";