ClickHouse/tests/integration/test_extreme_deduplication/test.py

144 lines
3.9 KiB
Python

import time
import pytest
from helpers.client import CommandRequest
from helpers.client import QueryTimeoutExceedException
from helpers.cluster import ClickHouseCluster
from helpers.test_tools import TSV
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance(
"node1",
main_configs=["configs/conf.d/merge_tree.xml", "configs/conf.d/remote_servers.xml"],
with_zookeeper=True,
macros={"layer": 0, "shard": 0, "replica": 1},
)
node2 = cluster.add_instance(
"node2",
main_configs=["configs/conf.d/merge_tree.xml", "configs/conf.d/remote_servers.xml"],
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_deduplication_window_in_seconds(started_cluster):
node = node1
node1.query(
"""
CREATE TABLE simple ON CLUSTER test_cluster (date Date, id UInt32)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/simple', '{replica}') PARTITION BY toYYYYMM(date) ORDER BY id"""
)
node.query("INSERT INTO simple VALUES (0, 0)")
time.sleep(1)
node.query("INSERT INTO simple VALUES (0, 0)") # deduplication works here
node.query("INSERT INTO simple VALUES (0, 1)")
assert TSV(node.query("SELECT count() FROM simple")) == TSV("2\n")
# Wait for the cleanup thread.
for i in range(100):
time.sleep(5)
if (
TSV.toMat(
node.query(
"SELECT count() FROM system.zookeeper WHERE path = '/clickhouse/tables/0/simple/blocks'"
)
)[0][0]
<= "1"
):
break
else:
raise Exception("The blocks from Keeper were not removed in time")
node.query(
"INSERT INTO simple VALUES (0, 0)"
) # Deduplication doesn't work here as the first hash node was deleted
assert TSV.toMat(node.query("SELECT count() FROM simple"))[0][0] == "3"
node1.query("""DROP TABLE simple ON CLUSTER test_cluster""")
# Currently this test just reproduce incorrect behavior that sould be fixed
@pytest.mark.skip(reason="Flapping test")
def test_deduplication_works_in_case_of_intensive_inserts(started_cluster):
inserters = []
fetchers = []
node1.query(
"""
CREATE TABLE simple ON CLUSTER test_cluster (date Date, id UInt32)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/simple', '{replica}') PARTITION BY toYYYYMM(date) ORDER BY id"""
)
node1.query("INSERT INTO simple VALUES (0, 0)")
for node in nodes:
host = node.ip_address
inserters.append(
CommandRequest(
["/bin/bash"],
timeout=10,
stdin="""
set -e
for i in `seq 1000`; do
{} --host {} -q "INSERT INTO simple VALUES (0, 0)"
done
""".format(
cluster.get_client_cmd(), host
),
)
)
fetchers.append(
CommandRequest(
["/bin/bash"],
timeout=10,
stdin="""
set -e
for i in `seq 1000`; do
res=`{} --host {} -q "SELECT count() FROM simple"`
if [[ $? -ne 0 || $res -ne 1 ]]; then
echo "Selected $res elements! Host: {}" 1>&2
exit -1
fi;
done
""".format(
cluster.get_client_cmd(), host, node.name
),
)
)
# There were not errors during INSERTs
for inserter in inserters:
try:
inserter.get_answer()
except QueryTimeoutExceedException:
# Only timeout is accepted
pass
# There were not errors during SELECTs
for fetcher in fetchers:
try:
fetcher.get_answer()
except QueryTimeoutExceedException:
# Only timeout is accepted
pass
node1.query("""DROP TABLE simple ON CLUSTER test_cluster""")