import os import os.path as p import sys sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) from helpers.cluster import ClickHouseCluster from helpers.network import PartitionManager from helpers.test_tools import TSV class ClickHouseClusterWithDDLHelpers(ClickHouseCluster): def __init__(self, base_path, config_dir): ClickHouseCluster.__init__(self, base_path) self.test_config_dir = config_dir def prepare(self, replace_hostnames_with_ips=True): try: for i in xrange(4): self.add_instance( 'ch{}'.format(i+1), config_dir=self.test_config_dir, macros={"layer": 0, "shard": i/2 + 1, "replica": i%2 + 1}, with_zookeeper=True) self.start() # Replace config files for testing ability to set host in DNS and IP formats if replace_hostnames_with_ips: self.replace_domains_to_ip_addresses_in_cluster_config(['ch1', 'ch3']) # Select sacrifice instance to test CONNECTION_LOSS and server fail on it sacrifice = self.instances['ch4'] self.pm_random_drops = PartitionManager() self.pm_random_drops._add_rule({'probability': 0.01, 'destination': sacrifice.ip_address, 'source_port': 2181, 'action': 'REJECT --reject-with tcp-reset'}) self.pm_random_drops._add_rule({'probability': 0.01, 'source': sacrifice.ip_address, 'destination_port': 2181, 'action': 'REJECT --reject-with tcp-reset'}) # Initialize databases and service tables instance = self.instances['ch1'] self.ddl_check_query(instance, """ CREATE TABLE IF NOT EXISTS all_tables ON CLUSTER 'cluster_no_replicas' (database String, name String, engine String, metadata_modification_time DateTime) ENGINE = Distributed('cluster_no_replicas', 'system', 'tables') """) self.ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS test ON CLUSTER 'cluster'") except Exception as e: print e raise def sync_replicas(self, table, timeout=5): for instance in self.instances.values(): instance.query("SYSTEM SYNC REPLICA {}".format(table), timeout=timeout) def check_all_hosts_successfully_executed(self, tsv_content, num_hosts=None): if num_hosts is None: num_hosts = len(self.instances) M = TSV.toMat(tsv_content) hosts = [(l[0], l[1]) for l in M] # (host, port) codes = [l[2] for l in M] messages = [l[3] 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(self, instance, query, num_hosts=None): contents = instance.query(query) self.check_all_hosts_successfully_executed(contents, num_hosts) return contents def replace_domains_to_ip_addresses_in_cluster_config(self, instances_to_replace): clusters_config = open(p.join(self.base_dir, '{}/config.d/clusters.xml'.format(self.test_config_dir))).read() for inst_name, inst in self.instances.items(): clusters_config = clusters_config.replace(inst_name, str(inst.ip_address)) for inst_name in instances_to_replace: inst = self.instances[inst_name] self.instances[inst_name].exec_in_container(['bash', '-c', 'echo "$NEW_CONFIG" > /etc/clickhouse-server/config.d/clusters.xml'], environment={"NEW_CONFIG": clusters_config}, privileged=True) # print cluster.instances[inst_name].exec_in_container(['cat', "/etc/clickhouse-server/config.d/clusters.xml"]) @staticmethod def ddl_check_there_are_no_dublicates(instance): query = "SELECT max(c), argMax(q, c) FROM (SELECT lower(query) AS q, count() AS c FROM system.query_log WHERE type=2 AND q LIKE '/* ddl_entry=query-%' GROUP BY query)" rows = instance.query(query) assert len(rows) > 0 and rows[0][0] == "1", "dublicates on {} {}, query {}".format(instance.name, instance.ip_address, query) @staticmethod def insert_reliable(instance, query_insert): """ Make retries in case of UNKNOWN_STATUS_OF_INSERT or zkutil::KeeperException errors """ for i in xrange(100): try: instance.query(query_insert) return except Exception as e: last_exception = e s = str(e) if not (s.find('Unknown status, client must retry') >= 0 or s.find('zkutil::KeeperException')): raise e raise last_exception