mirror of
https://github.com/ClickHouse/ClickHouse.git
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144 lines
4.8 KiB
Python
144 lines
4.8 KiB
Python
import os
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import os.path as p
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import sys
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import time
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import datetime
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import pytest
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from contextlib import contextmanager
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import docker
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from kazoo.client import KazooClient
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CURRENT_TEST_DIR = os.path.dirname(os.path.abspath(__file__))
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sys.path.insert(0, os.path.dirname(CURRENT_TEST_DIR))
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import TSV
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COPYING_FAIL_PROBABILITY = 0.33
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MOVING_FAIL_PROBABILITY = 0.1
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cluster = None
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@pytest.fixture(scope="module")
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def started_cluster():
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global cluster
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try:
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clusters_schema = {
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"0" : {"0" : ["0"]},
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"1" : {"0" : ["0"]}
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}
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cluster = ClickHouseCluster(__file__)
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for cluster_name, shards in clusters_schema.iteritems():
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for shard_name, replicas in shards.iteritems():
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for replica_name in replicas:
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name = "s{}_{}_{}".format(cluster_name, shard_name, replica_name)
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cluster.add_instance(name,
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config_dir="configs",
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macros={"cluster": cluster_name, "shard": shard_name, "replica": replica_name},
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with_zookeeper=True)
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cluster.start()
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yield cluster
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finally:
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pass
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cluster.shutdown()
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class TaskTrivial:
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def __init__(self, cluster):
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self.cluster = cluster
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self.zk_task_path="/clickhouse-copier/task_trivial"
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self.copier_task_config = open(os.path.join(CURRENT_TEST_DIR, 'task_trivial.xml'), 'r').read()
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def start(self):
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source = cluster.instances['s0_0_0']
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destination = cluster.instances['s1_0_0']
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for node in [source, destination]:
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node.query("DROP DATABASE IF EXISTS default")
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node.query("CREATE DATABASE IF NOT EXISTS default")
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source.query("CREATE TABLE trivial (d UInt64, d1 UInt64 MATERIALIZED d+1) "
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"ENGINE=ReplicatedMergeTree('/clickhouse/tables/source_trivial_cluster/1/trivial', '1') "
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"PARTITION BY d % 5 ORDER BY d SETTINGS index_granularity = 16")
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source.query("INSERT INTO trivial SELECT * FROM system.numbers LIMIT 1002", settings={"insert_distributed_sync": 1})
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def check(self):
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source = cluster.instances['s0_0_0']
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destination = cluster.instances['s1_0_0']
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assert TSV(source.query("SELECT count() FROM trivial")) == TSV("1002\n")
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assert TSV(destination.query("SELECT count() FROM trivial")) == TSV("1002\n")
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for node in [source, destination]:
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node.query("DROP TABLE trivial")
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def execute_task(task, cmd_options):
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task.start()
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zk = cluster.get_kazoo_client('zoo1')
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print "Use ZooKeeper server: {}:{}".format(zk.hosts[0][0], zk.hosts[0][1])
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zk_task_path = task.zk_task_path
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zk.ensure_path(zk_task_path)
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zk.create(zk_task_path + "/description", task.copier_task_config)
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# Run cluster-copier processes on each node
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docker_api = docker.from_env().api
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copiers_exec_ids = []
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cmd = ['/usr/bin/clickhouse', 'copier',
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'--config', '/etc/clickhouse-server/config-copier.xml',
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'--task-path', zk_task_path,
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'--base-dir', '/var/log/clickhouse-server/copier']
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cmd += cmd_options
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print(cmd)
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for instance_name, instance in cluster.instances.iteritems():
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container = instance.get_docker_handle()
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exec_id = docker_api.exec_create(container.id, cmd, stderr=True)
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docker_api.exec_start(exec_id, detach=True)
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copiers_exec_ids.append(exec_id)
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print "Copier for {} ({}) has started".format(instance.name, instance.ip_address)
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# Wait for copiers stopping and check their return codes
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for exec_id, instance in zip(copiers_exec_ids, cluster.instances.itervalues()):
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while True:
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res = docker_api.exec_inspect(exec_id)
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if not res['Running']:
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break
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time.sleep(1)
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assert res['ExitCode'] == 0, "Instance: {} ({}). Info: {}".format(instance.name, instance.ip_address, repr(res))
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try:
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task.check()
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finally:
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zk.delete(zk_task_path, recursive=True)
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# Tests
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def test_trivial_copy(started_cluster):
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execute_task(TaskTrivial(started_cluster), [])
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def test_trivial_copy_with_copy_fault(started_cluster):
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execute_task(TaskTrivial(started_cluster), ['--copy-fault-probability', str(COPYING_FAIL_PROBABILITY)])
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def test_trivial_copy_with_move_fault(started_cluster):
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execute_task(TaskTrivial(started_cluster), ['--move-fault-probability', str(MOVING_FAIL_PROBABILITY)])
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if __name__ == '__main__':
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with contextmanager(started_cluster)() as cluster:
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for name, instance in cluster.instances.items():
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print name, instance.ip_address
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raw_input("Cluster created, press any key to destroy...") |