import os import sys import time import random import string from helpers.cluster import ClickHouseCluster from helpers.test_tools import TSV import kazoo import pytest import docker CURRENT_TEST_DIR = os.path.dirname(os.path.abspath(__file__)) sys.path.insert(0, os.path.dirname(CURRENT_TEST_DIR)) COPYING_FAIL_PROBABILITY = 0.1 MOVING_FAIL_PROBABILITY = 0.1 cluster = ClickHouseCluster(__file__, name='copier_test_trivial') def generateRandomString(count): return ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(count)) @pytest.fixture(scope="module") def started_cluster(): global cluster try: for name in ["first_trivial", "second_trivial"]: instance = cluster.add_instance(name, main_configs=["configs/conf.d/clusters_trivial.xml"], user_configs=["configs_two_nodes/users.xml"], macros={"cluster" : name, "shard" : "the_only_shard", "replica" : "the_only_replica"}, with_zookeeper=True) cluster.start() yield cluster finally: cluster.shutdown() class TaskTrivial: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_trivial" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_trivial.xml'), 'r').read() def start(self): source = cluster.instances['first_trivial'] destination = cluster.instances['second_trivial'] for node in [source, destination]: node.query("DROP DATABASE IF EXISTS default") node.query("CREATE DATABASE IF NOT EXISTS default") source.query("CREATE TABLE trivial (d UInt64, d1 UInt64 MATERIALIZED d+1)" "ENGINE=ReplicatedMergeTree('/clickhouse/tables/source_trivial_cluster/1/trivial/{}', '1') " "PARTITION BY d % 5 ORDER BY (d, sipHash64(d)) SAMPLE BY sipHash64(d) SETTINGS index_granularity = 16".format(generateRandomString(10))) source.query("INSERT INTO trivial SELECT * FROM system.numbers LIMIT 1002", settings={"insert_distributed_sync": 1}) def check(self): zk = cluster.get_kazoo_client('zoo1') status_data, _ = zk.get(self.zk_task_path + "/status") assert status_data == b'{"hits":{"all_partitions_count":5,"processed_partitions_count":5}}' source = cluster.instances['first_trivial'] destination = cluster.instances['second_trivial'] assert TSV(source.query("SELECT count() FROM trivial")) == TSV("1002\n") assert TSV(destination.query("SELECT count() FROM trivial")) == TSV("1002\n") for node in [source, destination]: node.query("DROP TABLE trivial") class TaskReplicatedWithoutArguments: def __init__(self, cluster): self.cluster = cluster self.zk_task_path = "/clickhouse-copier/task_trivial_without_arguments" self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_trivial_without_arguments.xml'), 'r').read() def start(self): source = cluster.instances['first_trivial'] destination = cluster.instances['second_trivial'] for node in [source, destination]: node.query("DROP DATABASE IF EXISTS default") node.query("CREATE DATABASE IF NOT EXISTS default") source.query("CREATE TABLE trivial_without_arguments ON CLUSTER source_trivial_cluster (d UInt64, d1 UInt64 MATERIALIZED d+1) " "ENGINE=ReplicatedMergeTree() " "PARTITION BY d % 5 ORDER BY (d, sipHash64(d)) SAMPLE BY sipHash64(d) SETTINGS index_granularity = 16") source.query("INSERT INTO trivial_without_arguments SELECT * FROM system.numbers LIMIT 1002", settings={"insert_distributed_sync": 1}) def check(self): zk = cluster.get_kazoo_client('zoo1') status_data, _ = zk.get(self.zk_task_path + "/status") assert status_data == b'{"hits":{"all_partitions_count":5,"processed_partitions_count":5}}' source = cluster.instances['first_trivial'] destination = cluster.instances['second_trivial'] assert TSV(source.query("SELECT count() FROM trivial_without_arguments")) == TSV("1002\n") assert TSV(destination.query("SELECT count() FROM trivial_without_arguments")) == TSV("1002\n") for node in [source, destination]: node.query("DROP TABLE trivial_without_arguments") def execute_task(started_cluster, task, cmd_options): task.start() zk = started_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 = started_cluster.docker_client.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 = list(started_cluster.instances.keys()) for instance_name in copiers: instance = started_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 = started_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 def test_trivial_copy(started_cluster): execute_task(started_cluster, TaskTrivial(started_cluster), []) def test_trivial_without_arguments(started_cluster): execute_task(started_cluster, TaskReplicatedWithoutArguments(started_cluster), [])