mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-11 08:52:06 +00:00
115 lines
4.0 KiB
Python
115 lines
4.0 KiB
Python
import pytest
|
|
|
|
from helpers.cluster import ClickHouseCluster
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
|
|
node1 = cluster.add_instance(
|
|
"node1", main_configs=["configs/remote_servers.xml"], with_zookeeper=True
|
|
)
|
|
node2 = cluster.add_instance(
|
|
"node2", main_configs=["configs/remote_servers.xml"], with_zookeeper=True
|
|
)
|
|
node3 = cluster.add_instance(
|
|
"node3", main_configs=["configs/remote_servers.xml"], with_zookeeper=True
|
|
)
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def start_cluster():
|
|
try:
|
|
cluster.start()
|
|
yield cluster
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
def create_tables(cluster, table_name, skip_last_replica):
|
|
node1.query(f"DROP TABLE IF EXISTS {table_name} SYNC")
|
|
node2.query(f"DROP TABLE IF EXISTS {table_name} SYNC")
|
|
node3.query(f"DROP TABLE IF EXISTS {table_name} SYNC")
|
|
|
|
node1.query(
|
|
f"CREATE TABLE IF NOT EXISTS {table_name} (key Int64, value String) Engine=ReplicatedMergeTree('/test_parallel_replicas/shard1/{table_name}', 'r1') ORDER BY (key)"
|
|
)
|
|
node2.query(
|
|
f"CREATE TABLE IF NOT EXISTS {table_name} (key Int64, value String) Engine=ReplicatedMergeTree('/test_parallel_replicas/shard1/{table_name}', 'r2') ORDER BY (key)"
|
|
)
|
|
if not skip_last_replica:
|
|
node3.query(
|
|
f"CREATE TABLE IF NOT EXISTS {table_name} (key Int64, value String) Engine=ReplicatedMergeTree('/test_parallel_replicas/shard1/{table_name}', 'r3') ORDER BY (key)"
|
|
)
|
|
|
|
# populate data
|
|
node1.query(
|
|
f"INSERT INTO {table_name} SELECT number % 4, number FROM numbers(1000)"
|
|
)
|
|
node1.query(
|
|
f"INSERT INTO {table_name} SELECT number % 4, number FROM numbers(1000, 1000)"
|
|
)
|
|
node1.query(
|
|
f"INSERT INTO {table_name} SELECT number % 4, number FROM numbers(2000, 1000)"
|
|
)
|
|
node1.query(
|
|
f"INSERT INTO {table_name} SELECT number % 4, number FROM numbers(3000, 1000)"
|
|
)
|
|
node2.query(f"SYSTEM SYNC REPLICA {table_name}")
|
|
if not skip_last_replica:
|
|
node3.query(f"SYSTEM SYNC REPLICA {table_name}")
|
|
|
|
|
|
def test_skip_replicas_without_table(start_cluster):
|
|
cluster_name = "test_1_shard_3_replicas"
|
|
table_name = "tt"
|
|
create_tables(cluster_name, table_name, skip_last_replica=True)
|
|
|
|
expected_result = ""
|
|
for i in range(4):
|
|
expected_result += f"{i}\t1000\n"
|
|
|
|
log_comment = "5230b069-9574-407d-9b80-891b5a175f41"
|
|
assert (
|
|
node1.query(
|
|
f"SELECT key, count() FROM {table_name} GROUP BY key ORDER BY key",
|
|
settings={
|
|
"allow_experimental_parallel_reading_from_replicas": 2,
|
|
"max_parallel_replicas": 3,
|
|
"cluster_for_parallel_replicas": cluster_name,
|
|
"log_comment": log_comment,
|
|
},
|
|
)
|
|
== expected_result
|
|
)
|
|
|
|
node1.query("SYSTEM FLUSH LOGS")
|
|
assert (
|
|
node1.query(
|
|
f"SELECT ProfileEvents['DistributedConnectionMissingTable'], ProfileEvents['ParallelReplicasUnavailableCount'] FROM system.query_log WHERE type = 'QueryFinish' AND query_id IN (SELECT query_id FROM system.query_log WHERE current_database = currentDatabase() AND log_comment = '{log_comment}' AND type = 'QueryFinish' AND initial_query_id = query_id) SETTINGS allow_experimental_parallel_reading_from_replicas=0"
|
|
)
|
|
== "1\t1\n"
|
|
)
|
|
|
|
|
|
def test_skip_unresponsive_replicas(start_cluster):
|
|
cluster_name = "test_1_shard_3_replicas"
|
|
table_name = "tt"
|
|
create_tables(cluster_name, table_name, skip_last_replica=False)
|
|
|
|
expected_result = ""
|
|
for i in range(4):
|
|
expected_result += f"{i}\t1000\n"
|
|
|
|
node1.query("SYSTEM ENABLE FAILPOINT receive_timeout_on_table_status_response")
|
|
|
|
assert (
|
|
node1.query(
|
|
f"SELECT key, count() FROM {table_name} GROUP BY key ORDER BY key",
|
|
settings={
|
|
"allow_experimental_parallel_reading_from_replicas": 2,
|
|
"max_parallel_replicas": 3,
|
|
"cluster_for_parallel_replicas": cluster_name,
|
|
},
|
|
)
|
|
== expected_result
|
|
)
|