diff --git a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_h2.sql b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_h2.sql
index bf8819478c..a4faab6f45 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_h2.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_h2.sql
@@ -837,7 +837,7 @@ CREATE TABLE t_ds_task_instance
     retry_times             int(4) DEFAULT '0',
     pid                     int(4) DEFAULT NULL,
     app_link                text,
-    task_params             text,
+    task_params             longtext,
     flag                    tinyint(4) DEFAULT '1',
     retry_interval          int(4) DEFAULT NULL,
     max_retry_times         int(2) DEFAULT NULL,
diff --git a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql
index 0bdf2ac664..f2ded6d1ab 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/dolphinscheduler_mysql.sql
@@ -824,7 +824,7 @@ CREATE TABLE `t_ds_task_instance` (
   `retry_times` int(4) DEFAULT '0' COMMENT 'task retry times',
   `pid` int(4) DEFAULT NULL COMMENT 'pid of task',
   `app_link` text COMMENT 'yarn app id',
-  `task_params` text COMMENT 'job custom parameters',
+  `task_params` longtext COMMENT 'job custom parameters',
   `flag` tinyint(4) DEFAULT '1' COMMENT '0 not available, 1 available',
   `retry_interval` int(4) DEFAULT NULL COMMENT 'retry interval when task failed ',
   `max_retry_times` int(2) DEFAULT NULL COMMENT 'max retry times',
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/mysql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/mysql/dolphinscheduler_ddl.sql
new file mode 100644
index 0000000000..1331c1972e
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/mysql/dolphinscheduler_ddl.sql
@@ -0,0 +1,18 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+
+ALTER TABLE `t_ds_task_instance` MODIFY COLUMN `task_params` longtext COMMENT 'job custom parameters' AFTER `app_link`;
\ No newline at end of file
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/mysql/dolphinscheduler_dml.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/mysql/dolphinscheduler_dml.sql
new file mode 100644
index 0000000000..38964cc551
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/mysql/dolphinscheduler_dml.sql
@@ -0,0 +1,16 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
\ No newline at end of file
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/postgresql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/postgresql/dolphinscheduler_ddl.sql
new file mode 100644
index 0000000000..4a14f326b9
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/postgresql/dolphinscheduler_ddl.sql
@@ -0,0 +1,16 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/postgresql/dolphinscheduler_dml.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/postgresql/dolphinscheduler_dml.sql
new file mode 100644
index 0000000000..38964cc551
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.1.0_schema/postgresql/dolphinscheduler_dml.sql
@@ -0,0 +1,16 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
\ No newline at end of file