diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 7b5663c0a92845c0e81bde044ea42cf2f7e18303..d74d5a4d4e731cdf1cec4d3e61b2d30a33b467c0 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -40,11 +40,11 @@ bool    tsPrintAuth = false;
 
 // multi process
 int32_t tsMultiProcess = 0;
-int32_t tsMnodeShmSize = TSDB_MAX_WAL_SIZE * 2 + 128;
-int32_t tsVnodeShmSize = TSDB_MAX_WAL_SIZE * 10 + 128;
-int32_t tsQnodeShmSize = TSDB_MAX_WAL_SIZE * 4 + 128;
-int32_t tsSnodeShmSize = TSDB_MAX_WAL_SIZE * 4 + 128;
-int32_t tsBnodeShmSize = TSDB_MAX_WAL_SIZE * 4 + 128;
+int32_t tsMnodeShmSize = TSDB_MAX_WAL_SIZE * 2 + 1024;
+int32_t tsVnodeShmSize = TSDB_MAX_WAL_SIZE * 10 + 1024;
+int32_t tsQnodeShmSize = TSDB_MAX_WAL_SIZE * 4 + 1024;
+int32_t tsSnodeShmSize = TSDB_MAX_WAL_SIZE * 4 + 1024;
+int32_t tsBnodeShmSize = TSDB_MAX_WAL_SIZE * 4 + 1024;
 int32_t tsNumOfShmThreads = 1;
 
 // queue & threads
@@ -380,11 +380,11 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   if (cfgAddBool(pCfg, "deadLockKillQuery", tsDeadLockKillQuery, 0) != 0) return -1;
 
   if (cfgAddInt32(pCfg, "multiProcess", tsMultiProcess, 0, 2, 0) != 0) return -1;
-  if (cfgAddInt32(pCfg, "mnodeShmSize", tsMnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
-  if (cfgAddInt32(pCfg, "vnodeShmSize", tsVnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
-  if (cfgAddInt32(pCfg, "qnodeShmSize", tsQnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
-  if (cfgAddInt32(pCfg, "snodeShmSize", tsSnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
-  if (cfgAddInt32(pCfg, "bnodeShmSize", tsBnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
+  if (cfgAddInt32(pCfg, "mnodeShmSize", tsMnodeShmSize, TSDB_MAX_WAL_SIZE * 2 + 1024, INT32_MAX, 0) != 0) return -1;
+  if (cfgAddInt32(pCfg, "vnodeShmSize", tsVnodeShmSize, TSDB_MAX_WAL_SIZE * 2 + 1024, INT32_MAX, 0) != 0) return -1;
+  if (cfgAddInt32(pCfg, "qnodeShmSize", tsQnodeShmSize, TSDB_MAX_WAL_SIZE * 2 + 1024, INT32_MAX, 0) != 0) return -1;
+  if (cfgAddInt32(pCfg, "snodeShmSize", tsSnodeShmSize, TSDB_MAX_WAL_SIZE * 2 + 1024, INT32_MAX, 0) != 0) return -1;
+  if (cfgAddInt32(pCfg, "bnodeShmSize", tsBnodeShmSize, TSDB_MAX_WAL_SIZE * 2 + 1024, INT32_MAX, 0) != 0) return -1;
   if (cfgAddInt32(pCfg, "mumOfShmThreads", tsNumOfShmThreads, 1, 1024, 0) != 0) return -1;
 
   tsNumOfRpcThreads = tsNumOfCores / 2;