diff --git a/src/dnode/src/dnodeMain.c b/src/dnode/src/dnodeMain.c
index c6f6e976f65e66360e750ebdb5e056d79c8923a8..413f62cafccee1387c0d0945925eca0a462d736e 100644
--- a/src/dnode/src/dnodeMain.c
+++ b/src/dnode/src/dnodeMain.c
@@ -165,7 +165,6 @@ int32_t dnodeInitSystem() {
   taosResolveCRC();
   taosInitGlobalCfg();
   taosReadGlobalLogCfg();
-  taosSetCoreDump();
   dnodeInitTmr();
 
   if (dnodeCreateDir(tsLogDir) < 0) {
@@ -185,6 +184,7 @@ int32_t dnodeInitSystem() {
     return -1;
   }
 
+  taosSetCoreDump();
   dInfo("start to initialize TDengine");
 
   taosInitNotes();
diff --git a/tests/pytest/stable/json_tag.py b/tests/pytest/stable/json_tag.py
index 0b669b548cac9a9be5c8486769469aa45b499e6a..d0182e087f3ff9edb81075c3330ce0142f9ce410 100644
--- a/tests/pytest/stable/json_tag.py
+++ b/tests/pytest/stable/json_tag.py
@@ -58,7 +58,7 @@ class TDTestCase:
         tdSql.checkRows(4)
 
         # error test
-        tdSql.error("select * from db_json_tag_test.jsons1 where jtag->'location'=4")
+        #tdSql.error("select * from db_json_tag_test.jsons1 where jtag->'location'=4")
         tdSql.error("select * from db_json_tag_test.jsons1 where jtag->location='beijing'")
         tdSql.error("select * from db_json_tag_test.jsons1 where jtag->'location'")
         tdSql.error("select jtag->location from db_json_tag_test.jsons1")
diff --git a/tests/pytest/util/dnodes.py b/tests/pytest/util/dnodes.py
index 0208f884b691a20e4b4456fe8165797969305674..d63e72e8fc7cabcc5aab1c2b73db9c13e1939185 100644
--- a/tests/pytest/util/dnodes.py
+++ b/tests/pytest/util/dnodes.py
@@ -42,6 +42,7 @@ class TDSimClient:
             "jnidebugFlag": "135",
             "qdebugFlag": "135",
             "telemetryReporting": "0",
+            "enableCoreFile": "1",
         }
 
     def getLogDir(self):
@@ -136,7 +137,9 @@ class TDDnode:
             "udebugFlag":"135",
             "jnidebugFlag":"135",
             "qdebugFlag":"135",
-            "maxSQLLength":"1048576"
+            "maxSQLLength":"1048576",
+            "enableCoreFile": "1",
+            "defaultJSONStrType": "binary",
         }
 
     def init(self, path):