async def query(request, ch_host, ch_port):
query_id = request.query.get('query_id', None)
if not query_id:
raise web.HTTPBadRequest(text='Expected query id')
client = Client(ch_host, port=ch_port)
await client.execute('SET allow_introspection_functions=1;')
try:
rows = await client.execute(
'''SELECT
arrayStringConcat(arrayReverse(arrayMap(x -> demangle(addressToSymbol(x)), trace)), ';') AS stack,
count() AS samples
FROM system.trace_log
WHERE query_id = %(query_id)s
GROUP BY trace''',
{'query_id': query_id},
)
except:
raise web.HTTPBadRequest(text='Invalid query id')
if len(rows) == 0:
raise web.HTTPBadRequest(text='Invalid query id')
result = '\n'.join([f'{row[0]} {row[1]}' for row in rows])
return web.Response(text=result)
def test_from_url(self):
client = Client.from_url(f'clickhouse://{self.host}', loop=self.loop)
async def run():
rv = await client.execute('SELECT 2')
self.assertEqual(rv, [(2, )])
self.loop.run_until_complete(run())
self.loop.run_until_complete(client.disconnect())
async def bench_selects_aioch_with_decoding(*, retries: int, rows: int):
print("AIOCH selects with decoding")
client = Client(host='localhost')
# prepare environment
await prepare_db(client)
await client.execute("INSERT INTO benchmark_tbl VALUES",
list(row_data() for _ in range(rows)))
# actual testing
start_time = time.time()
for _ in range(retries):
selected_rows = await client.execute("SELECT * FROM benchmark_tbl")
selected_rows = [row[0] for row in selected_rows]
total_time = time.time() - start_time
avg_time = total_time / retries
speed = int(1 / avg_time * rows)
print(
f"- Avg time for selecting {rows} rows from {retries} runs: {avg_time} sec. Total: {total_time}"
)
print(f" Speed: {speed} rows/sec")
def __init__(self,
db_name='default',
db_host='127.0.0.1',
db_port='9000',
username='******',
password='',
timeout=60):
self.db_name = db_name
self.db_host = db_host
self.readonly = False
self.timeout = timeout
self.client = Client(host=db_host,
port=db_port,
database=db_name,
user=username,
password=password)
self.settings = {}
self.db_exists = False
self.server_timezone = pytz.utc
def async_execute(query, args=None):
return
def sync_execute(query, args=None):
return
def cache_sync_execute(query, args=None, redis_client=None, ttl=None):
return
else:
if not TEST and CLICKHOUSE_ASYNC:
ch_client = Client(
host=CLICKHOUSE_HOST,
database=CLICKHOUSE_DATABASE,
secure=CLICKHOUSE_SECURE,
password=CLICKHOUSE_PASSWORD,
ca_certs=CLICKHOUSE_CA,
verify=CLICKHOUSE_VERIFY,
)
@async_to_sync
async def async_execute(query, args=None):
loop = asyncio.get_event_loop()
task = loop.create_task(ch_client.execute(query, args))
return task
else:
# if this is a test use the sync client
ch_client = SyncClient(
host=CLICKHOUSE_HOST,
database=CLICKHOUSE_DATABASE,
def create_pool():
for i in range(inserter_config.WORKERS):
client = Client(inserter_config.HOST)
pool[i] = {"c": client, "a": True}
def create_client(self):
return Client(self.host,
self.port,
self.database,
'wrong_user',
loop=self.loop)