[ 
https://issues.apache.org/jira/browse/AIRFLOW-766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720179#comment-16720179
 ] 

ASF GitHub Bot commented on AIRFLOW-766:
----------------------------------------

ashb closed pull request #2209: [AIRFLOW-766] Skip conn.commit() when in 
Auto-commit
URL: https://github.com/apache/incubator-airflow/pull/2209
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/airflow/hooks/dbapi_hook.py b/airflow/hooks/dbapi_hook.py
index df52e54ea9..753dea179f 100644
--- a/airflow/hooks/dbapi_hook.py
+++ b/airflow/hooks/dbapi_hook.py
@@ -170,7 +170,16 @@ def run(self, sql, autocommit=False, parameters=None):
             else:
                 cur.execute(s)
         cur.close()
-        conn.commit()
+
+        # Skip commit when autocommit is activated
+        if self.supports_autocommit and autocommit:
+            pass
+        elif not self.supports_autocommit and autocommit:
+            logging.warn(("%s connection doesn't support " +
+                "autocommit but autocommit activated: ")
+                % getattr(self, self.conn_name_attr))
+        else:
+            conn.commit()
         conn.close()
 
     def set_autocommit(self, conn, autocommit):
diff --git a/airflow/hooks/jdbc_hook.py b/airflow/hooks/jdbc_hook.py
index bc1f352ecc..5a1271f204 100644
--- a/airflow/hooks/jdbc_hook.py
+++ b/airflow/hooks/jdbc_hook.py
@@ -64,4 +64,4 @@ def set_autocommit(self, conn, autocommit):
         :param conn: The connection
         :return:
         """
-        conn.jconn.autocommit = autocommit
+        conn.jconn.setAutoCommit(autocommit)
diff --git a/airflow/utils/db.py b/airflow/utils/db.py
index 54254f61dd..a993dd8a76 100644
--- a/airflow/utils/db.py
+++ b/airflow/utils/db.py
@@ -253,6 +253,17 @@ def initdb():
         models.Connection(
             conn_id='databricks_default', conn_type='databricks',
             host='localhost'))
+    merge_conn(
+        models.Connection(
+            conn_id='jdbc_default', conn_type='jdbc',
+            host='jdbc:mysql://localhost:3306/airflow', port=3306,
+            login='airflow', password='airflow', schema='airflow',
+            extra='''
+            {
+                "extra__jdbc__drv_path": 
"/tmp/mysql-connector-java-5.1.40-bin.jar",
+                "extra__jdbc__drv_clsname": "com.mysql.jdbc.Driver"
+            }
+            '''))
 
     # Known event types
     KET = models.KnownEventType
diff --git a/tests/hooks/__init__.py b/tests/hooks/__init__.py
new file mode 100644
index 0000000000..a85b77269c
--- /dev/null
+++ b/tests/hooks/__init__.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+#
+# Licensed 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/tests/hooks/dbapi_hook.py b/tests/hooks/dbapi_hook.py
new file mode 100644
index 0000000000..281ab033e7
--- /dev/null
+++ b/tests/hooks/dbapi_hook.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+#
+# Licensed 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.
+#
+import logging
+import unittest
+import mock
+from mock import MagicMock, Mock
+from airflow.hooks.jdbc_hook import JdbcHook
+from airflow.hooks.postgres_hook import PostgresHook
+
+class TestDbApiHook(unittest.TestCase):
+
+    def test_set_autocommit(self):     
+        hook = JdbcHook(jdbc_conn_id='jdbc_default')
+        conn = MagicMock(name='conn')
+        conn.jconn.setAutoCommit = Mock(return_value=None)
+
+        hook.set_autocommit(conn, False)
+        conn.jconn.setAutoCommit.assert_called_with(False)
+
+        hook.set_autocommit(conn, True)
+        conn.jconn.setAutoCommit.assert_called_with(True)
+
+    def test_autocommit(self):
+        logging.info("Test autocommit when connection supports autocommit")
+        jdbc_hook = JdbcHook(jdbc_conn_id='jdbc_default')
+        jdbc_hook.run(sql='SELECT 1', autocommit=True)
+        self.assertTrue('Query ran success with supports_autocommit=True, 
autocommit=True')
+        jdbc_hook.run(sql='SELECT 1', autocommit=False)
+        self.assertTrue('Query ran success with supports_autocommit=True, 
autocommit=False')
+
+    def test_autocommit_unsupported(self):
+        logging.info("Test autocommit when connection doesn't support 
autocommit")
+        pg_hook = PostgresHook(conn_id='postgres_default')
+        pg_hook.run(sql='SELECT 1', autocommit=True)
+        self.assertTrue('Query ran success with supports_autocommit=True, 
autocommit=True')
+        pg_hook.run(sql='SELECT 1', autocommit=False)
+        self.assertTrue('Query ran success with supports_autocommit=True, 
autocommit=False')
+        
+if __name__ == '__main__':
+    unittest.main()


 

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> Skip conn.commit() when in Auto-commit
> --------------------------------------
>
>                 Key: AIRFLOW-766
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-766
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: db
>    Affects Versions: 2.0.0
>         Environment: Airflow 2.0, IBM Netezza
>            Reporter: Pfubar.k
>            Assignee: Pfubar.k
>            Priority: Major
>              Labels: easyfix
>             Fix For: 1.10.0
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Some JDBC Drivers fails when using DbApiHook.run(), DbApiHook.insert_rows().
> I'm using IBM Netezza. When auto-commit mode is on I get this error message.
> {code}
> NzSQLException: The connection object is in auto-commit mode
> {code}
> conn.commit() needs to be called only when auto-commit mode is off.



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