diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index c3c159ee45ae944fbb9b0efa1af0d86647a2a5b6..690b3ca680e22ceb400e56612e9f469abef07893 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -69,7 +69,7 @@ int32_t tsMaxBinaryDisplayWidth = 30;
  * -1: all data are not compressed
  * other values: if the message payload size is greater than the tsCompressMsgSize, the message will be compressed.
  */
-int32_t tsCompressMsgSize = -1;
+int32_t tsCompressMsgSize = 16 * 1048576;
 
 // client
 int32_t tsMaxSQLStringLen = TSDB_MAX_ALLOWED_SQL_LEN;
@@ -921,7 +921,7 @@ static void doInitGlobalConfig(void) {
   cfg.valType = TAOS_CFG_VTYPE_INT32;
   cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_CLIENT | TSDB_CFG_CTYPE_B_SHOW;
   cfg.minValue = -1;
-  cfg.maxValue = 10000000;
+  cfg.maxValue = 10000000000.0f;
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);