ClickHouse/dbms/tests/integration/test_random_inserts/test.py

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import time
import os
import threading
import random
from contextlib import contextmanager
import pytest
from helpers.cluster import ClickHouseCluster
from helpers.network import PartitionManager
from helpers.test_tools import TSV
from helpers.client import CommandRequest
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', config_dir='configs', with_zookeeper=True, macros={"layer": 0, "shard": 0, "replica": 1})
node2 = cluster.add_instance('node2', config_dir='configs', with_zookeeper=True, macros={"layer": 0, "shard": 0, "replica": 2})
nodes = [node1, node2]
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
finally:
pass
cluster.shutdown()
def test_random_inserts(started_cluster):
# Duration of the test, reduce it if don't want to wait
DURATION_SECONDS = 10# * 60
node1.query("""
CREATE TABLE simple ON CLUSTER test_cluster (date Date, i UInt32, s String)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/simple', '{replica}', date, i, 8192)""")
with PartitionManager() as pm_random_drops:
for sacrifice in nodes:
pass # This test doesn't work with partition problems still
#pm_random_drops._add_rule({'probability': 0.01, 'destination': sacrifice.ip_address, 'source_port': 2181, 'action': 'REJECT --reject-with tcp-reset'})
#pm_random_drops._add_rule({'probability': 0.01, 'source': sacrifice.ip_address, 'destination_port': 2181, 'action': 'REJECT --reject-with tcp-reset'})
min_timestamp = int(time.time())
max_timestamp = min_timestamp + DURATION_SECONDS
num_timestamps = max_timestamp - min_timestamp + 1
bash_script = os.path.join(os.path.dirname(__file__), "test.sh")
inserters = []
for node in nodes:
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cmd = ['/bin/bash', bash_script, node.ip_address, str(min_timestamp), str(max_timestamp), str(cluster.get_client_cmd())]
inserters.append(CommandRequest(cmd, timeout=DURATION_SECONDS * 2, stdin=''))
print node.name, node.ip_address
for inserter in inserters:
inserter.get_answer()
answer="{}\t{}\t{}\t{}\n".format(num_timestamps, num_timestamps, min_timestamp, max_timestamp)
for node in nodes:
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res = node.query_with_retry("SELECT count(), uniqExact(i), min(i), max(i) FROM simple", check_callback=lambda res: TSV(res) == TSV(answer))
assert TSV(res) == TSV(answer), node.name + " : " + node.query("SELECT groupArray(_part), i, count() AS c FROM simple GROUP BY i ORDER BY c DESC LIMIT 1")
node1.query("""DROP TABLE simple ON CLUSTER test_cluster""")
class Runner:
def __init__(self):
self.mtx = threading.Lock()
self.total_inserted = 0
self.inserted_vals = set()
self.inserted_payloads = set()
self.stop_ev = threading.Event()
def do_insert(self, thread_num):
self.stop_ev.wait(random.random())
year = 2000
month = '01'
day = str(thread_num + 1).zfill(2)
x = 1
while not self.stop_ev.is_set():
payload = """
{year}-{month}-{day} {x1}
{year}-{month}-{day} {x2}
""".format(year=year, month=month, day=day, x1=x, x2=(x + 1)).strip()
try:
random.choice(nodes).query("INSERT INTO repl_test FORMAT TSV", payload)
# print 'thread {}: insert {}, {}'.format(thread_num, i, i + 1)
self.mtx.acquire()
if payload not in self.inserted_payloads:
self.inserted_payloads.add(payload)
self.inserted_vals.add(x)
self.inserted_vals.add(x + 1)
self.total_inserted += 2 * x + 1
self.mtx.release()
except Exception, e:
print 'Exception:', e
x += 2
self.stop_ev.wait(0.1 + random.random() / 10)
def test_insert_multithreaded(started_cluster):
DURATION_SECONDS = 50
for node in nodes:
node.query("DROP TABLE IF EXISTS repl_test")
for node in nodes:
node.query("CREATE TABLE repl_test(d Date, x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/repl_test', '{replica}') ORDER BY x PARTITION BY toYYYYMM(d)")
runner = Runner()
threads = []
for thread_num in range(5):
threads.append(threading.Thread(target=runner.do_insert, args=(thread_num, )))
for t in threads:
t.start()
time.sleep(DURATION_SECONDS)
runner.stop_ev.set()
for t in threads:
t.join()
# Sanity check: at least something was inserted
assert runner.total_inserted > 0
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all_replicated = False
for i in range(100): # wait for replication 50 seconds max
time.sleep(0.5)
def get_delay(node):
return int(node.query("SELECT absolute_delay FROM system.replicas WHERE table = 'repl_test'").rstrip())
if all([get_delay(n) == 0 for n in nodes]):
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all_replicated = True
break
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assert all_replicated
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# Now we can be sure that all replicated fetches started, but they may not
# be finished yet so we additionaly sync replicas, to be sure, that we have
# all data on both replicas
for node in nodes:
node.query("SYSTEM SYNC REPLICA repl_test", timeout=10)
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actual_inserted = []
for i, node in enumerate(nodes):
actual_inserted.append(int(node.query("SELECT sum(x) FROM repl_test").rstrip()))
assert actual_inserted[i] == runner.total_inserted