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# The MIT License (MIT)
# Copyright (c) Microsoft Corporation. All rights reserved.
import asyncio
import os
import random
from datetime import datetime
from logging.handlers import RotatingFileHandler
from azure.monitor.opentelemetry import configure_azure_monitor
from workload_configs import *
_NOISY_ERRORS = set([404, 409, 412])
_NOISY_SUB_STATUS_CODES = set([0, None])
_REQUIRED_ATTRIBUTES = ["resource_type", "verb", "operation_type", "status_code", "sub_status_code", "duration"]
def get_user_agent(client_id):
prefix = USER_AGENT_PREFIX + "-" if USER_AGENT_PREFIX else ""
return prefix + str(client_id) + "-" + datetime.now().strftime("%Y%m%d-%H%M%S")
def get_random_item():
random_int = random.randint(0, NUMBER_OF_LOGICAL_PARTITIONS)
return {"id": "test-" + str(random_int), "pk": "pk-" + str(random_int)}
def upsert_item(container, excluded_locations, num_upserts):
for _ in range(num_upserts):
if excluded_locations:
container.upsert_item(get_random_item(), etag=None, match_condition=None,
excluded_locations=excluded_locations)
else:
container.upsert_item(get_random_item(), etag=None, match_condition=None)
def read_item(container, excluded_locations, num_reads):
for _ in range(num_reads):
item = get_random_item()
if excluded_locations:
container.read_item(item["id"], item[PARTITION_KEY], etag=None, match_condition=None,
excluded_locations=excluded_locations)
else:
container.read_item(item["id"], item[PARTITION_KEY], etag=None, match_condition=None)
def query_items(container, excluded_locations, num_queries):
for _ in range(num_queries):
perform_query(container, excluded_locations)
def perform_query(container, excluded_locations):
random_item = get_random_item()
if excluded_locations:
results = container.query_items(query="SELECT * FROM c where c.id=@id and c.pk=@pk",
parameters=[{"name": "@id", "value": random_item["id"]},
{"name": "@pk", "value": random_item["pk"]}],
partition_key=random_item[PARTITION_KEY],
excluded_locations=excluded_locations)
else:
results = container.query_items(query="SELECT * FROM c where c.id=@id and c.pk=@pk",
parameters=[{"name": "@id", "value": random_item["id"]},
{"name": "@pk", "value": random_item["pk"]}],
partition_key=random_item[PARTITION_KEY])
items = [item for item in results]
async def upsert_item_concurrently(container, excluded_locations, num_upserts):
tasks = []
for _ in range(num_upserts):
if excluded_locations:
tasks.append(container.upsert_item(get_random_item(), etag=None, match_condition=None,
excluded_locations=excluded_locations))
else:
tasks.append(container.upsert_item(get_random_item(), etag=None, match_condition=None))
await asyncio.gather(*tasks)
async def read_item_concurrently(container, excluded_locations, num_reads):
tasks = []
for _ in range(num_reads):
item = get_random_item()
if excluded_locations:
tasks.append(container.read_item(item["id"], item[PARTITION_KEY], etag=None, match_condition=None,
excluded_locations=excluded_locations))
else:
tasks.append(container.read_item(item["id"], item[PARTITION_KEY], etag=None, match_condition=None))
await asyncio.gather(*tasks)
async def query_items_concurrently(container, excluded_locations, num_queries):
tasks = []
for _ in range(num_queries):
tasks.append(perform_query_concurrently(container, excluded_locations))
await asyncio.gather(*tasks)
async def perform_query_concurrently(container, excluded_locations):
random_item = get_random_item()
if excluded_locations:
results = container.query_items(query="SELECT * FROM c where c.id=@id and c.pk=@pk",
parameters=[{"name": "@id", "value": random_item["id"]},
{"name": "@pk", "value": random_item["pk"]}],
partition_key=random_item[PARTITION_KEY],
excluded_locations=excluded_locations)
else:
results = container.query_items(query="SELECT * FROM c where c.id=@id and c.pk=@pk",
parameters=[{"name": "@id", "value": random_item["id"]},
{"name": "@pk", "value": random_item["pk"]}],
partition_key=random_item[PARTITION_KEY])
items = [item async for item in results]
def create_logger(file_name):
os.environ["AZURE_COSMOS_ENABLE_CIRCUIT_BREAKER"] = str(CIRCUIT_BREAKER_ENABLED)
logger = logging.getLogger()
if APP_INSIGHTS_CONNECTION_STRING:
configure_azure_monitor(
logger_name="azure.cosmos",
connection_string=APP_INSIGHTS_CONNECTION_STRING,
)
prefix = os.path.splitext(file_name)[0] + "-" + str(os.getpid())
# Create a rotating file handler
handler = RotatingFileHandler(
"log-" + get_user_agent(prefix) + '.log',
maxBytes=1024 * 1024 * 10, # 10 mb
backupCount=2
)
logger.setLevel(LOG_LEVEL)
# create filters for the logger handler to reduce the noise
workload_logger_filter = WorkloadLoggerFilter()
handler.addFilter(workload_logger_filter)
logger.addHandler(handler)
return prefix, logger
class WorkloadLoggerFilter(logging.Filter):
def filter(self, record):
# Check if the required attributes exist in the log record
if all(hasattr(record, attr) for attr in _REQUIRED_ATTRIBUTES):
# Check the conditions
# Check database account reads
if record.resource_type == "databaseaccount" and record.verb == "GET" and record.operation_type == "Read":
return True
# Check if there is an error and omit noisy errors
if record.status_code >= 400 and not (
record.status_code in _NOISY_ERRORS and record.sub_status_code in _NOISY_SUB_STATUS_CODES):
return True
# Check if the latency (duration) was above 1000 ms
if record.duration >= 1000:
return True
return False
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