diff --git a/threadfunc/thread_func.cpp b/threadfunc/thread_func.cpp
index a212d95..7caa4fe 100644
--- a/threadfunc/thread_func.cpp
+++ b/threadfunc/thread_func.cpp
@@ -354,11 +354,13 @@ void CleanLogFile(std::string log_dir, size_t retain) {
 
 void DiskSpaceCheck() {
     std::string directory = "/opt/log";
+    std::string directory_data = "/opt/data";
     while (1) {
         boost::filesystem::space_info si = boost::filesystem::space("/opt");                
         if (si.free <= 20000000) {     
             zlog_warn(zct, "disk free space:%llu for /opt", si.free);       
-            CleanLogFile(directory, 10);            
+            CleanLogFile(directory, 10);   
+            CleanLogFile(directory_data, 100);           
             boost::filesystem::space_info si1 = boost::filesystem::space("/opt");
             if (si1.free <= 20000000) {
                 zlog_warn(zct, "[DiskSpaceCheck] can not release enough space and clean more log file");
diff --git a/uart/uart_feature_parse.cpp b/uart/uart_feature_parse.cpp
index eb7056f..2015f35 100644
--- a/uart/uart_feature_parse.cpp
+++ b/uart/uart_feature_parse.cpp
@@ -21,9 +21,9 @@ std::vector<RecvData> g_VecWaveDataZ;
 std::map<std::string, compressWaveChannel> g_mapCompress;
 std::map<std::string, WaveChannel> g_mapWaveChannel;
 
-unsigned char data[1024 * 30] = {0x00};
-unsigned char outdata[1024 * 50] = {0x00};
-unsigned char dealdata[1024 * 30] = {0x00};
+unsigned char data[96000] = {0x00};
+unsigned char outdata[96000] = {0x00};
+unsigned char dealdata[96000] = {0x00};
 char  mqttData[512000] = {0};
 
 void Uart::RecordBattery(std::string &strLongAddr, DataRecvStatic &dataStatic, std::string &nowTimetamp) {