ClickHouse/tests/integration/test_drop_if_empty/test.py

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2023-09-21 13:20:18 +00:00
import re
import time
import pytest
import requests
from helpers.cluster import ClickHouseCluster
from helpers.client import QueryRuntimeException
cluster = ClickHouseCluster(__file__, zookeeper_config_path="configs/zookeeper.xml")
main_configs = [
"configs/remote_servers.xml",
]
node1 = cluster.add_instance(
"node1",
main_configs=main_configs + ["configs/drop_if_empty_check.xml"],
macros={"replica": "node1", "shard": "shard1"},
with_zookeeper=True,
)
node2 = cluster.add_instance(
"node2",
main_configs=main_configs + ["configs/drop_if_empty_check.xml"],
macros={"replica": "node2", "shard": "shard1"},
with_zookeeper=True,
)
@pytest.fixture(scope="module")
def start_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def test_drop_if_empty(start_cluster):
settings = {
"allow_experimental_database_replicated": 1,
}
node1.query(
"CREATE DATABASE replicateddb "
"ENGINE = Replicated('/clickhouse/databases/replicateddb', 'shard1', 'node1')",
settings=settings,
)
node2.query(
"CREATE DATABASE replicateddb "
"ENGINE = Replicated('/clickhouse/databases/replicateddb', 'shard1', 'node2')",
settings=settings,
)
node1.query(
"CREATE TABLE default.tbl ON CLUSTER 'cluster' ("
"x UInt64"
") ENGINE=ReplicatedMergeTree('/clickhouse/tables/tbl/', '{replica}')"
"ORDER BY x"
)
node1.query(
"CREATE TABLE replicateddb.tbl2 (" "x UInt64" ") ENGINE=MergeTree " "ORDER BY x"
)
assert 1 == int(
node2.query("SELECT count() FROM system.tables WHERE name = 'tbl';")
)
assert 1 == int(
node2.query("SELECT count() FROM system.databases WHERE name = 'replicateddb';")
)
assert 1 == int(
node2.query("SELECT count() FROM system.tables WHERE name = 'tbl2';")
)
node2.query("SYSTEM STOP MERGES;")
node2.query("SYSTEM STOP FETCHES;")
node2.query("SYSTEM STOP REPLICATION QUEUES;")
node1.query("INSERT INTO default.tbl SELECT * FROM system.numbers_mt LIMIT 10000;")
node1.query(
"INSERT INTO replicateddb.tbl2 SELECT * FROM system.numbers_mt LIMIT 10000;"
)
assert 0 == int(node2.query("SELECT count() FROM default.tbl;"))
assert 0 == int(node2.query("SELECT count() FROM replicateddb.tbl2;"))
node2.query("DROP TABLE IF EMPTY default.tbl ON CLUSTER 'cluster';")
node2.query("DROP TABLE IF EMPTY replicateddb.tbl2;")
assert 0 == int(
node1.query("SELECT count() FROM system.tables WHERE name = 'tbl';")
)
assert 0 == int(
node2.query("SELECT count() FROM system.tables WHERE name = 'tbl';")
)
assert 0 == int(
node1.query("SELECT count() FROM system.tables WHERE name = 'tbl2';")
)
assert 0 == int(
node2.query("SELECT count() FROM system.tables WHERE name = 'tbl2';")
)
with pytest.raises(
QueryRuntimeException,
match="DB::Exception: DROP IF EMPTY is not implemented for databases.",
):
node2.query("DROP DATABASE IF EMPTY replicateddb;")