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__) 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={"distributed_foreground_insert": 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={"distributed_foreground_insert": 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), [])