Merge "Remove logging from ProducerConnection._produce_message"

oslo_messaging/_drivers/impl_kafka.py

@@ -265,18 +265,17 @@ class ProducerConnection(Connection):
         self.producer = None
         self.producer_lock = threading.Lock()
 
-    def _produce_message(self, topic, message):
+    def _produce_message(self, topic, message, poll):
-        while True:
+        if poll:
+            self.producer.poll(poll)
         try:
             self.producer.produce(topic, message)
         except KafkaException as e:
-                LOG.error("Produce message failed: %s" % str(e))
+            self.producer.poll(0)
-            except BufferError:
+            raise e
-                LOG.debug("Produce message queue full, waiting for deliveries")
+        except BufferError as e:
-                self.producer.poll(0.5)
+            # We'll have to poll next time
-                continue
+            raise e
-            break
-
         self.producer.poll(0)
 
     def notify_send(self, topic, ctxt, msg, retry):
@@ -293,9 +292,22 @@ class ProducerConnection(Connection):
 
         try:
             self._ensure_producer()
+            poll = 0
+            while True:
+                try:
                     if eventletutils.is_monkey_patched('thread'):
-                return tpool.execute(self._produce_message, topic, message)
+                        return tpool.execute(self._produce_message, topic,
-            return self._produce_message(topic, message)
+                                             message, poll)
+                    return self._produce_message(topic, message, poll)
+                except KafkaException as e:
+                    LOG.error("Produce message failed: %s" % str(e))
+                    break
+                except BufferError:
+                    LOG.debug("Produce message queue full, "
+                              "waiting for deliveries")
+                    # We'll retry with .5s polling
+                    poll = 0.5
+
         except Exception:
             # NOTE(sileht): if something goes wrong close the producer
             # connection

oslo_messaging/tests/drivers/test_impl_kafka.py

@@ -15,6 +15,8 @@
 import testscenarios
 from unittest import mock
 
+from confluent_kafka import KafkaException
+
 import oslo_messaging
 from oslo_messaging._drivers import impl_kafka as kafka_driver
 from oslo_messaging.tests import utils as test_utils
@@ -120,6 +122,36 @@ class TestKafkaDriver(test_utils.BaseTestCase):
                 'ssl.key.password': '',
             })
 
+    def test_send_notification_retries_on_buffer_error(self):
+        target = oslo_messaging.Target(topic="topic_test")
+
+        with mock.patch("confluent_kafka.Producer") as producer:
+            fake_producer = mock.MagicMock()
+            fake_producer.produce = mock.Mock(
+                side_effect=[BufferError, BufferError, None])
+            producer.return_value = fake_producer
+
+            self.driver.send_notification(
+                target, {}, {"payload": ["test_1"]},
+                None, retry=3)
+
+            assert fake_producer.produce.call_count == 3
+
+    def test_send_notification_stops_on_kafka_error(self):
+        target = oslo_messaging.Target(topic="topic_test")
+
+        with mock.patch("confluent_kafka.Producer") as producer:
+            fake_producer = mock.MagicMock()
+            fake_producer.produce = mock.Mock(
+                side_effect=[KafkaException, None])
+            producer.return_value = fake_producer
+
+            self.driver.send_notification(
+                target, {}, {"payload": ["test_1"]},
+                None, retry=3)
+
+            assert fake_producer.produce.call_count == 1
+
     def test_listen(self):
         target = oslo_messaging.Target(topic="topic_test")
         self.assertRaises(NotImplementedError, self.driver.listen, target,

releasenotes/notes/bug-1981093-kafka-dont-log-in-tpool-execute-fa50ceee2d55ebae.yaml

@@ -0,0 +1,8 @@
+---
+fixes:
+  - |
+    [`bug 1981093 <https://bugs.launchpad.net/oslo.messaging/+bug/1981093>`_]
+    Pulls calls to logging functions out of ``impl_kafka._produce_message``.
+    Since ``_produce_message`` is called through tpool.execute, calling logging
+    functions inside ``_produce_message`` could cause subsequent calls to
+    logging functions to deadlock.