import os import random import sys import time from contextlib import contextmanager import docker import kazoo import pytest from helpers.cluster import ClickHouseCluster from helpers.test_tools import TSV CURRENT_TEST_DIR = os.path.dirname(os.path.abspath(__file__)) sys.path.insert(0, os.path.dirname(CURRENT_TEST_DIR)) COPYING_FAIL_PROBABILITY = 0.2 MOVING_FAIL_PROBABILITY = 0.2 cluster = ClickHouseCluster(__file__) def check_all_hosts_sucesfully_executed(tsv_content, num_hosts): M = TSV.toMat(tsv_content) hosts = [(l[0], l[1]) for l in M] # (host, port) codes = [l[2] for l in M] assert len(hosts) == num_hosts and len(set(hosts)) == num_hosts, "\n" + tsv_content assert len(set(codes)) == 1, "\n" + tsv_content assert codes[0] == "0", "\n" + tsv_content def ddl_check_query(instance, query, num_hosts=3): contents = instance.query(query) check_all_hosts_sucesfully_executed(contents, num_hosts) return contents @pytest.fixture(scope="module") def started_cluster(): global cluster try: clusters_schema = { "0": { "0": ["0", "1"], "1": ["0"] }, "1": { "0": ["0", "1"], "1": ["0"] } } for cluster_name, shards in clusters_schema.items(): for shard_name, replicas in shards.items(): for replica_name in replicas: name = "s{}_{}_{}".format(cluster_name, shard_name, replica_name) cluster.add_instance(name, main_configs=["configs/conf.d/query_log.xml", "configs/conf.d/ddl.xml", "configs/conf.d/clusters.xml"], user_configs=["configs/users.xml"], macros={"cluster": cluster_name, "shard": shard_name, "replica": replica_name}, with_zookeeper=True) cluster.start() yield cluster finally: cluster.shutdown() class Task1: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_simple" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task0_description.xml'), 'r').read() def start(self): instance = cluster.instances['s0_0_0'] for cluster_num in ["0", "1"]: ddl_check_query(instance, "DROP DATABASE IF EXISTS default ON CLUSTER cluster{}".format(cluster_num)) ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS default ON CLUSTER cluster{}".format( cluster_num)) ddl_check_query(instance, "CREATE TABLE hits ON CLUSTER cluster0 (d UInt64, d1 UInt64 MATERIALIZED d+1) " + "ENGINE=ReplicatedMergeTree " + "PARTITION BY d % 3 ORDER BY (d, sipHash64(d)) SAMPLE BY sipHash64(d) SETTINGS index_granularity = 16") ddl_check_query(instance, "CREATE TABLE hits_all ON CLUSTER cluster0 (d UInt64) ENGINE=Distributed(cluster0, default, hits, d)") ddl_check_query(instance, "CREATE TABLE hits_all ON CLUSTER cluster1 (d UInt64) ENGINE=Distributed(cluster1, default, hits, d + 1)") instance.query("INSERT INTO hits_all SELECT * FROM system.numbers LIMIT 1002", settings={"insert_distributed_sync": 1}) def check(self): assert TSV(self.cluster.instances['s0_0_0'].query("SELECT count() FROM hits_all")) == TSV("1002\n") assert TSV(self.cluster.instances['s1_0_0'].query("SELECT count() FROM hits_all")) == TSV("1002\n") assert TSV(self.cluster.instances['s1_0_0'].query("SELECT DISTINCT d % 2 FROM hits")) == TSV("1\n") assert TSV(self.cluster.instances['s1_1_0'].query("SELECT DISTINCT d % 2 FROM hits")) == TSV("0\n") instance = self.cluster.instances['s0_0_0'] ddl_check_query(instance, "DROP TABLE hits_all ON CLUSTER cluster0") ddl_check_query(instance, "DROP TABLE hits_all ON CLUSTER cluster1") ddl_check_query(instance, "DROP TABLE hits ON CLUSTER cluster0") ddl_check_query(instance, "DROP TABLE hits ON CLUSTER cluster1") class Task2: def __init__(self, cluster, unique_zk_path): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_month_to_week_partition" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_month_to_week_description.xml'), 'r').read() self.unique_zk_path = unique_zk_path def start(self): instance = cluster.instances['s0_0_0'] for cluster_num in ["0", "1"]: ddl_check_query(instance, "DROP DATABASE IF EXISTS default ON CLUSTER cluster{}".format(cluster_num)) ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS default ON CLUSTER cluster{}".format( cluster_num)) ddl_check_query(instance, "CREATE TABLE a ON CLUSTER cluster0 (date Date, d UInt64, d1 UInt64 ALIAS d+1) " "ENGINE=ReplicatedMergeTree('/clickhouse/tables/cluster_{cluster}/{shard}/" + self.unique_zk_path + "', " "'{replica}', date, intHash64(d), (date, intHash64(d)), 8192)") ddl_check_query(instance, "CREATE TABLE a_all ON CLUSTER cluster0 (date Date, d UInt64) ENGINE=Distributed(cluster0, default, a, d)") instance.query( "INSERT INTO a_all SELECT toDate(17581 + number) AS date, number AS d FROM system.numbers LIMIT 85", settings={"insert_distributed_sync": 1}) def check(self): assert TSV(self.cluster.instances['s0_0_0'].query("SELECT count() FROM cluster(cluster0, default, a)")) == TSV( "85\n") assert TSV(self.cluster.instances['s1_0_0'].query( "SELECT count(), uniqExact(date) FROM cluster(cluster1, default, b)")) == TSV("85\t85\n") assert TSV(self.cluster.instances['s1_0_0'].query( "SELECT DISTINCT jumpConsistentHash(intHash64(d), 2) FROM b")) == TSV("0\n") assert TSV(self.cluster.instances['s1_1_0'].query( "SELECT DISTINCT jumpConsistentHash(intHash64(d), 2) FROM b")) == TSV("1\n") assert TSV(self.cluster.instances['s1_0_0'].query( "SELECT uniqExact(partition) IN (12, 13) FROM system.parts WHERE active AND database='default' AND table='b'")) == TSV( "1\n") assert TSV(self.cluster.instances['s1_1_0'].query( "SELECT uniqExact(partition) IN (12, 13) FROM system.parts WHERE active AND database='default' AND table='b'")) == TSV( "1\n") instance = cluster.instances['s0_0_0'] ddl_check_query(instance, "DROP TABLE a ON CLUSTER cluster0") ddl_check_query(instance, "DROP TABLE b ON CLUSTER cluster1") class Task_test_block_size: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_test_block_size" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_test_block_size.xml'), 'r').read() self.rows = 1000000 def start(self): instance = cluster.instances['s0_0_0'] ddl_check_query(instance, """ CREATE TABLE test_block_size ON CLUSTER shard_0_0 (partition Date, d UInt64) ENGINE=ReplicatedMergeTree ORDER BY (d, sipHash64(d)) SAMPLE BY sipHash64(d)""", 2) instance.query( "INSERT INTO test_block_size SELECT toDate(0) AS partition, number as d FROM system.numbers LIMIT {}".format( self.rows)) def check(self): assert TSV(self.cluster.instances['s1_0_0'].query( "SELECT count() FROM cluster(cluster1, default, test_block_size)")) == TSV("{}\n".format(self.rows)) instance = cluster.instances['s0_0_0'] ddl_check_query(instance, "DROP TABLE test_block_size ON CLUSTER shard_0_0", 2) ddl_check_query(instance, "DROP TABLE test_block_size ON CLUSTER cluster1") class Task_no_index: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_no_index" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_no_index.xml'), 'r').read() self.rows = 1000000 def start(self): instance = cluster.instances['s0_0_0'] instance.query("create table ontime (Year UInt16, FlightDate String) ENGINE = Memory") instance.query("insert into ontime values (2016, 'test6'), (2017, 'test7'), (2018, 'test8')") def check(self): assert TSV(self.cluster.instances['s1_1_0'].query("SELECT Year FROM ontime22")) == TSV("2017\n") instance = cluster.instances['s0_0_0'] instance.query("DROP TABLE ontime") instance = cluster.instances['s1_1_0'] instance.query("DROP TABLE ontime22") class Task_no_arg: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_no_arg" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_no_arg.xml'), 'r').read() self.rows = 1000000 def start(self): instance = cluster.instances['s0_0_0'] instance.query( "create table copier_test1 (date Date, id UInt32) engine = MergeTree PARTITION BY date ORDER BY date SETTINGS index_granularity = 8192") instance.query("insert into copier_test1 values ('2016-01-01', 10);") def check(self): assert TSV(self.cluster.instances['s1_1_0'].query("SELECT date FROM copier_test1_1")) == TSV("2016-01-01\n") instance = cluster.instances['s0_0_0'] instance.query("DROP TABLE copier_test1") instance = cluster.instances['s1_1_0'] instance.query("DROP TABLE copier_test1_1") class Task_non_partitioned_table: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_non_partitoned_table" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_non_partitioned_table.xml'), 'r').read() self.rows = 1000000 def start(self): instance = cluster.instances['s0_0_0'] instance.query( "create table copier_test1 (date Date, id UInt32) engine = MergeTree ORDER BY date SETTINGS index_granularity = 8192") instance.query("insert into copier_test1 values ('2016-01-01', 10);") def check(self): assert TSV(self.cluster.instances['s1_1_0'].query("SELECT date FROM copier_test1_1")) == TSV("2016-01-01\n") instance = cluster.instances['s0_0_0'] instance.query("DROP TABLE copier_test1") instance = cluster.instances['s1_1_0'] instance.query("DROP TABLE copier_test1_1") class Task_self_copy: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_self_copy" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_self_copy.xml'), 'r').read() def start(self): instance = cluster.instances['s0_0_0'] instance.query("CREATE DATABASE db1;") instance.query( "CREATE TABLE db1.source_table (`a` Int8, `b` String, `c` Int8) ENGINE = MergeTree PARTITION BY a ORDER BY a SETTINGS index_granularity = 8192") instance.query("CREATE DATABASE db2;") instance.query( "CREATE TABLE db2.destination_table (`a` Int8, `b` String, `c` Int8) ENGINE = MergeTree PARTITION BY a ORDER BY a SETTINGS index_granularity = 8192") instance.query("INSERT INTO db1.source_table VALUES (1, 'ClickHouse', 1);") instance.query("INSERT INTO db1.source_table VALUES (2, 'Copier', 2);") def check(self): instance = cluster.instances['s0_0_0'] assert TSV(instance.query("SELECT * FROM db2.destination_table ORDER BY a")) == TSV(instance.query("SELECT * FROM db1.source_table ORDER BY a")) instance = cluster.instances['s0_0_0'] instance.query("DROP DATABASE db1 SYNC") instance.query("DROP DATABASE db2 SYNC") def execute_task(task, cmd_options): task.start() zk = cluster.get_kazoo_client('zoo1') print("Use ZooKeeper server: {}:{}".format(zk.hosts[0][0], zk.hosts[0][1])) try: zk.delete("/clickhouse-copier", recursive=True) except kazoo.exceptions.NoNodeError: print("No node /clickhouse-copier. It is Ok in first test.") zk_task_path = task.zk_task_path zk.ensure_path(zk_task_path) zk.create(zk_task_path + "/description", task.copier_task_config.encode()) # Run cluster-copier processes on each node docker_api = docker.from_env().api copiers_exec_ids = [] cmd = ['/usr/bin/clickhouse', 'copier', '--config', '/etc/clickhouse-server/config-copier.xml', '--task-path', zk_task_path, '--base-dir', '/var/log/clickhouse-server/copier'] cmd += cmd_options copiers = random.sample(list(cluster.instances.keys()), 3) for instance_name in copiers: instance = cluster.instances[instance_name] container = instance.get_docker_handle() instance.copy_file_to_container(os.path.join(CURRENT_TEST_DIR, "configs/config-copier.xml"), "/etc/clickhouse-server/config-copier.xml") print("Copied copier config to {}".format(instance.name)) exec_id = docker_api.exec_create(container.id, cmd, stderr=True) output = docker_api.exec_start(exec_id).decode('utf8') print(output) copiers_exec_ids.append(exec_id) print("Copier for {} ({}) has started".format(instance.name, instance.ip_address)) # Wait for copiers stopping and check their return codes for exec_id, instance_name in zip(copiers_exec_ids, copiers): instance = cluster.instances[instance_name] while True: res = docker_api.exec_inspect(exec_id) if not res['Running']: break time.sleep(0.5) assert res['ExitCode'] == 0, "Instance: {} ({}). Info: {}".format(instance.name, instance.ip_address, repr(res)) try: task.check() finally: zk.delete(zk_task_path, recursive=True) # Tests @pytest.mark.parametrize( ('use_sample_offset'), [ False, True ] ) def test_copy_simple(started_cluster, use_sample_offset): if use_sample_offset: execute_task(Task1(started_cluster), ['--experimental-use-sample-offset', '1']) else: execute_task(Task1(started_cluster), []) @pytest.mark.parametrize( ('use_sample_offset'), [ False, True ] ) def test_copy_with_recovering(started_cluster, use_sample_offset): if use_sample_offset: execute_task(Task1(started_cluster), ['--copy-fault-probability', str(COPYING_FAIL_PROBABILITY), '--experimental-use-sample-offset', '1']) else: execute_task(Task1(started_cluster), ['--copy-fault-probability', str(COPYING_FAIL_PROBABILITY)]) @pytest.mark.parametrize( ('use_sample_offset'), [ False, True ] ) def test_copy_with_recovering_after_move_faults(started_cluster, use_sample_offset): if use_sample_offset: execute_task(Task1(started_cluster), ['--move-fault-probability', str(MOVING_FAIL_PROBABILITY), '--experimental-use-sample-offset', '1']) else: execute_task(Task1(started_cluster), ['--move-fault-probability', str(MOVING_FAIL_PROBABILITY)]) @pytest.mark.timeout(600) def test_copy_month_to_week_partition(started_cluster): execute_task(Task2(started_cluster, "test1"), []) @pytest.mark.timeout(600) def test_copy_month_to_week_partition_with_recovering(started_cluster): execute_task(Task2(started_cluster, "test2"), ['--copy-fault-probability', str(COPYING_FAIL_PROBABILITY)]) @pytest.mark.timeout(600) def test_copy_month_to_week_partition_with_recovering_after_move_faults(started_cluster): execute_task(Task2(started_cluster, "test3"), ['--move-fault-probability', str(MOVING_FAIL_PROBABILITY)]) def test_block_size(started_cluster): execute_task(Task_test_block_size(started_cluster), []) def test_no_index(started_cluster): execute_task(Task_no_index(started_cluster), []) def test_no_arg(started_cluster): execute_task(Task_no_arg(started_cluster), []) def test_non_partitioned_table(started_cluster): execute_task(Task_non_partitioned_table(started_cluster), []) def test_self_copy(started_cluster): execute_task(Task_self_copy(started_cluster), []) if __name__ == '__main__': with contextmanager(started_cluster)() as cluster: for name, instance in list(cluster.instances.items()): print(name, instance.ip_address) input("Cluster created, press any key to destroy...")