From 2cf8b20384fd0a2dedd3b578d5f92172cce667c1 Mon Sep 17 00:00:00 2001
From: amecea <flavius@presslabs.com>
Date: Wed, 20 Mar 2019 16:02:21 +0200
Subject: [PATCH] Add a stress script

---
 hack/dev-values.yaml            |   9 ---
 hack/development/stress_test.py | 118 ++++++++++++++++++++++++++++++++
 2 files changed, 118 insertions(+), 9 deletions(-)
 delete mode 100644 hack/dev-values.yaml
 create mode 100755 hack/development/stress_test.py

diff --git a/hack/dev-values.yaml b/hack/dev-values.yaml
deleted file mode 100644
index 11422f1f8..000000000
--- a/hack/dev-values.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-extraArgs:
-  - --debug
-
-installCRDs: false
-
-orchestrator:
-  topologyPassword: password1
-  antiAffinity: soft
-  replicas: 1
diff --git a/hack/development/stress_test.py b/hack/development/stress_test.py
new file mode 100755
index 000000000..419cd61fa
--- /dev/null
+++ b/hack/development/stress_test.py
@@ -0,0 +1,118 @@
+#!/usr/bin/python3
+
+# Description:
+# A simple python script that generates lots of queries to stress the MySQL server.
+#
+# Notes:
+# pip install mysql-connector-python
+#
+# Examples:
+# ./stress_test.py mysql://root:not-so-secure@127.0.0.1:33066/test --times=100
+
+import time
+import sys
+import argparse
+from urllib.parse import urlparse
+
+import mysql.connector
+
+
+class Base:
+    def __init__(self, db, args):
+        self.db = db
+        self.args = args
+
+    def __call__(self):
+        self.init_sql()
+
+        rows = self.args.rows
+        total_time = time.time()
+        for i in range(int(self.args.times)):
+            start_time = time.time()
+            self.test(i)
+            print ('{}: round: {} rows: {} to {} time: {}'.format(self.__class__.__name__,
+                i, i*rows, (i+1)*rows, time.time()-start_time))
+
+    def init_sql(self):
+        pass
+
+    def test(self, epoch):
+        pass
+
+
+class InsertStress(Base):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.table_name = 'test'
+
+    def init_sql(self):
+        cursor = self.db.cursor()
+        cursor.execute('CREATE TABLE IF NOT EXISTS {} '
+                       '(f1 VARCHAR(30), f2 VARCHAR(30), f3 VARCHAR(30))'.format(self.table_name))
+        self.db.commit()
+
+    def test(self, epoch):
+        sql = "INSERT INTO {} (f1, f2, f3) VALUES (%s, %s, %s)".format(self.table_name)
+        val = []
+        for i in range(self.args.rows):
+            val.append(("l_"+str(i), "f_"+str(i), "a_"+str(i)))
+
+
+        mycursor = self.db.cursor()
+        mycursor.executemany(sql, val)
+        self.db.commit()
+
+
+def mysql_connection(dsn):
+    dsn = urlparse(dsn)
+    db_name = dsn.path.strip('/')
+    if len(db_name)==0:
+        raise RuntimeError('Database name not corectly specifyied: {}'.format(db_name))
+
+    try:
+        db = mysql.connector.connect(
+            host=dsn.hostname,
+            port=dsn.port,
+            user=dsn.username,
+            passwd=dsn.password,
+            database=db_name,
+        )
+    except mysql.connector.errors.ProgrammingError as e:
+        if 'Unknown database' in e.msg:
+            db = mysql.connector.connect(
+                host=dsn.hostname,
+                port=dsn.port,
+                user=dsn.username,
+                passwd=dsn.password,
+            )
+            cursor = db.cursor()
+            cursor.execute('CREATE DATABASE IF NOT EXISTS {}'.format(db_name))
+            cursor.execute('USE {}'.format(db_name))
+            db.commit()
+        else:
+            raise
+
+    return db
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description='Stress test for mysql.')
+    parser.add_argument('DSN', type=str,
+                        help='Data source name that contains user and password.')
+    parser.add_argument('--rows', type=int, default=100000, help='The number of rows to execute')
+    parser.add_argument('--times', type=int, default=100,
+                        help='The number of times to execute the queries')
+
+    return parser.parse_args()
+
+
+def main():
+    args = parse_args()
+    db = mysql_connection(args.DSN)
+
+    # run insert stress tests
+    InsertStress(db, args)()
+
+
+if __name__ == "__main__":
+    main()