[GitHub] [beam] damccorm commented on a diff in pull request #22344: [BEAM-13004] DebeziumIO Load Test

[GitBox <gi...@apache.org>]

damccorm commented on code in PR #22344:
URL: https://github.com/apache/beam/pull/22344#discussion_r963615778


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sdks/python/apache_beam/testing/load_tests/debezium_performance_test.py:
##########
@@ -0,0 +1,170 @@
+#
+# 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.
+#
+
+"""
+Performance test for debezium.
+
+The purpose of this test is verify that Python's connector ReadFromDebezium
+work propertly, for this, the test create a postgresql database inside a
+kubernetes pod and stream querys inside of the database for 20 minutes.
+After that ReadFromDebezium checks if everything goes well
+
+Example test run:
+
+python -m apache_beam.testing.load_tests.debezium_performance
+
+or:
+
+./gradlew
+ -PloadTest.mainClass=apache_beam.testing.load_tests.debezium_performance \
+-Prunner=DirectRunner :sdks:python:apache_beam:testing:load_tests:run
+"""
+
+import logging
+import random
+import time
+from concurrent.futures import ThreadPoolExecutor
+
+import psycopg2
+
+from apache_beam.io.debezium import DriverClassName
+from apache_beam.io.debezium import ReadFromDebezium
+from apache_beam.testing.load_tests.load_test import LoadTest
+
+
+class DebeziumLoadTest(LoadTest):
+  def __init__(self):
+    super().__init__()
+    self.kubernetes_host = self.pipeline.get_option('kubernetes_host')
+    self.kubernetes_port = self.pipeline.get_option('kubernetes_port')
+    self.postgres_user = self.pipeline.get_option('postgres_user')
+    self.postgres_password = self.pipeline.get_option('postgres_password')
+
+    self.username = self.postgres_user
+    self.password = self.postgres_password
+
+    self.database = 'postgres'
+    self.port = self.kubernetes_port
+    self.host = self.kubernetes_host
+    self.connector_class = DriverClassName.POSTGRESQL
+    self.connection_properties = [
+        "database.dbname=postgres",
+        "database.server.name=postgres",
+        "database.include.list=postgres",
+        "include.schema.changes=false",
+        "plugin.name=pgoutput"
+    ]
+
+  def initConnection(self):
+    connection = psycopg2.connect(
+        host=self.host,
+        database=self.database,
+        user=self.username,
+        password=self.password)
+    return connection
+
+  def randomInsertTest(self):
+    connection = self.initConnection()
+    insert = 0
+    cursor = connection.cursor()
+    createTable = """
+            CREATE TABLE IF NOT EXISTS postgres(
+                id NUMERIC,
+                word VARCHAR(50),
+                number NUMERIC,
+                date DATE,
+                bool BOOLEAN
+            )
+        """
+    cursor.execute(createTable)
+    alterTableReplica = "ALTER TABLE postgres REPLICA IDENTITY FULL;"
+    cursor.execute(alterTableReplica)
+    startTime = time.time()
+    testDuration = 60 * 22
+    timeFlag = True
+
+    logging.debug('INSERTING RANDOMLY')
+    while timeFlag:
+
+      action = random.randint(1, 10)
+      if action == 1:  # Delete

Review Comment:
   Yeah, I think using fixed numbers of each type is a better approach



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