mirror of
https://github.com/ClickHouse/ClickHouse.git
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392 lines
17 KiB
Python
Executable File
392 lines
17 KiB
Python
Executable File
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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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from helpers.cluster import ClickHouseCluster
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from helpers.network import PartitionManager, PartitionManagerDisbaler
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from helpers.test_tools import TSV
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def check_all_hosts_sucesfully_executed(tsv_content, num_hosts=None):
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if num_hosts is None:
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num_hosts = len(cluster.instances)
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M = TSV.toMat(tsv_content)
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hosts = [(l[0], l[1]) for l in M] # (host, port)
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codes = [l[2] for l in M]
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messages = [l[3] for l in M]
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assert len(hosts) == num_hosts and len(set(hosts)) == num_hosts, "\n" + tsv_content
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assert len(set(codes)) == 1, "\n" + tsv_content
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assert codes[0] == "0", "\n" + tsv_content
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def ddl_check_query(instance, query, num_hosts=None):
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contents = instance.query(query)
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check_all_hosts_sucesfully_executed(contents, num_hosts)
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return contents
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def ddl_check_there_are_no_dublicates(instance):
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rows = 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)")
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assert len(rows) > 0 and rows[0][0] == "1", "dublicates on {} {}, query {}".format(instance.name, instance.ip_address)
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# Make retries in case of UNKNOWN_STATUS_OF_INSERT or zkutil::KeeperException errors
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def insert_reliable(instance, query_insert):
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for i in xrange(100):
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try:
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instance.query(query_insert)
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return
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except Exception as e:
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last_exception = e
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s = str(e)
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if not (s.find('Unknown status, client must retry') >= 0 or s.find('zkutil::KeeperException')):
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raise e
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raise last_exception
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TEST_REPLICATED_ALTERS=False # TODO: Check code and turn on
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cluster = ClickHouseCluster(__file__)
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def replace_domains_to_ip_addresses_in_cluster_config(instances_to_replace):
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clusters_config = open(p.join(cluster.base_dir, 'configs/config.d/clusters.xml')).read()
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for inst_name, inst in cluster.instances.items():
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clusters_config = clusters_config.replace(inst_name, str(inst.ip_address))
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for inst_name in instances_to_replace:
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inst = cluster.instances[inst_name]
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cluster.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)
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# print cluster.instances[inst_name].exec_in_container(['cat', "/etc/clickhouse-server/config.d/clusters.xml"])
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def init_cluster(cluster):
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try:
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for i in xrange(4):
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cluster.add_instance(
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'ch{}'.format(i+1),
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config_dir="configs",
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macros={"layer": 0, "shard": i/2 + 1, "replica": i%2 + 1},
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with_zookeeper=True)
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cluster.start()
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# Replace config files for testing ability to set host in DNS and IP formats
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replace_domains_to_ip_addresses_in_cluster_config(['ch1', 'ch3'])
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# Select sacrifice instance to test CONNECTION_LOSS and server fail on it
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sacrifice = cluster.instances['ch4']
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cluster.pm_random_drops = PartitionManager()
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cluster.pm_random_drops._add_rule({'probability': 0.01, 'destination': sacrifice.ip_address, 'source_port': 2181, 'action': 'REJECT --reject-with tcp-reset'})
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cluster.pm_random_drops._add_rule({'probability': 0.01, 'source': sacrifice.ip_address, 'destination_port': 2181, 'action': 'REJECT --reject-with tcp-reset'})
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# Initialize databases and service tables
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instance = cluster.instances['ch1']
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS all_tables ON CLUSTER 'cluster_no_replicas'
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(database String, name String, engine String, metadata_modification_time DateTime)
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ENGINE = Distributed('cluster_no_replicas', 'system', 'tables')
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""")
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ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS test ON CLUSTER 'cluster'")
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except Exception as e:
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print e
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raise
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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init_cluster(cluster)
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yield cluster
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instance = cluster.instances['ch1']
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ddl_check_query(instance, "DROP DATABASE test ON CLUSTER 'cluster'")
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ddl_check_query(instance, "DROP DATABASE IF EXISTS test2 ON CLUSTER 'cluster'")
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# Check query log to ensure that DDL queries are not executed twice
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time.sleep(1.5)
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for instance in cluster.instances.values():
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ddl_check_there_are_no_dublicates(instance)
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cluster.pm_random_drops.heal_all()
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finally:
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cluster.shutdown()
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def test_default_database(started_cluster):
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instance = cluster.instances['ch3']
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ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS test2 ON CLUSTER 'cluster' FORMAT TSV")
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ddl_check_query(instance, "DROP TABLE IF EXISTS null ON CLUSTER 'cluster' FORMAT TSV")
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ddl_check_query(instance, "CREATE TABLE null ON CLUSTER 'cluster2' (s String DEFAULT 'escape\t\nme') ENGINE = Null")
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contents = instance.query("SELECT hostName() AS h, database FROM all_tables WHERE name = 'null' ORDER BY h")
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assert TSV(contents) == TSV("ch1\tdefault\nch2\ttest2\nch3\tdefault\nch4\ttest2\n")
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ddl_check_query(instance, "DROP TABLE IF EXISTS null ON CLUSTER cluster2")
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ddl_check_query(instance, "DROP DATABASE IF EXISTS test2 ON CLUSTER 'cluster'")
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def test_create_view(started_cluster):
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instance = cluster.instances['ch3']
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ddl_check_query(instance, "CREATE VIEW test.super_simple_view ON CLUSTER 'cluster' AS SELECT * FROM system.numbers FORMAT TSV")
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ddl_check_query(instance, "CREATE MATERIALIZED VIEW test.simple_mat_view ON CLUSTER 'cluster' ENGINE = Memory AS SELECT * FROM system.numbers FORMAT TSV")
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ddl_check_query(instance, "DROP TABLE test.simple_mat_view ON CLUSTER 'cluster' FORMAT TSV")
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ddl_check_query(instance, "DROP TABLE IF EXISTS test.super_simple_view2 ON CLUSTER 'cluster' FORMAT TSV")
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ddl_check_query(instance, "CREATE TABLE test.super_simple ON CLUSTER 'cluster' (i Int8) ENGINE = Memory")
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ddl_check_query(instance, "RENAME TABLE test.super_simple TO test.super_simple2 ON CLUSTER 'cluster' FORMAT TSV")
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ddl_check_query(instance, "DROP TABLE test.super_simple2 ON CLUSTER 'cluster'")
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def test_on_server_fail(started_cluster):
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instance = cluster.instances['ch1']
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kill_instance = cluster.instances['ch2']
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ddl_check_query(instance, "DROP TABLE IF EXISTS test.test_server_fail ON CLUSTER 'cluster'")
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kill_instance.get_docker_handle().stop()
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request = instance.get_query_request("CREATE TABLE test.test_server_fail ON CLUSTER 'cluster' (i Int8) ENGINE=Null", timeout=30)
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kill_instance.get_docker_handle().start()
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ddl_check_query(instance, "DROP TABLE IF EXISTS test.__nope__ ON CLUSTER 'cluster'")
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# Check query itself
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check_all_hosts_sucesfully_executed(request.get_answer())
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# And check query artefacts
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contents = instance.query("SELECT hostName() AS h FROM all_tables WHERE database='test' AND name='test_server_fail' ORDER BY h")
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assert TSV(contents) == TSV("ch1\nch2\nch3\nch4\n")
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ddl_check_query(instance, "DROP TABLE test.test_server_fail ON CLUSTER 'cluster'")
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def _test_on_connection_losses(cluster, zk_timeout):
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instance = cluster.instances['ch1']
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kill_instance = cluster.instances['ch2']
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with PartitionManager() as pm:
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pm.drop_instance_zk_connections(kill_instance)
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request = instance.get_query_request("DROP TABLE IF EXISTS test.__nope__ ON CLUSTER 'cluster'", timeout=10)
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time.sleep(zk_timeout)
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pm.restore_instance_zk_connections(kill_instance)
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check_all_hosts_sucesfully_executed(request.get_answer())
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def test_on_connection_loss(started_cluster):
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_test_on_connection_losses(cluster, 1.5) # connection loss will occur only (3 sec ZK timeout in config)
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def test_on_session_expired(started_cluster):
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_test_on_connection_losses(cluster, 4) # session should be expired (3 sec ZK timeout in config)
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def test_replicated_alters(started_cluster):
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instance = cluster.instances['ch2']
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ddl_check_query(instance, "DROP TABLE IF EXISTS merge_for_alter ON CLUSTER cluster")
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ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_32 ON CLUSTER cluster")
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ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_64 ON CLUSTER cluster")
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if not TEST_REPLICATED_ALTERS:
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return
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# Temporarily disable random ZK packet drops, they might broke creation if ReplicatedMergeTree replicas
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firewall_drops_rules = cluster.pm_random_drops.pop_rules()
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS merge_for_alter ON CLUSTER cluster (p Date, i Int32)
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ENGINE = ReplicatedMergeTree('/clickhouse/tables/{layer}-{shard}/hits', '{replica}', p, p, 1)
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""")
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS all_merge_32 ON CLUSTER cluster (p Date, i Int32)
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ENGINE = Distributed(cluster, default, merge_for_alter, i)
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""")
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS all_merge_64 ON CLUSTER cluster (p Date, i Int64, s String)
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ENGINE = Distributed(cluster, default, merge_for_alter, i)
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""")
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for i in xrange(4):
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k = (i / 2) * 2
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insert_reliable(cluster.instances['ch{}'.format(i + 1)], "INSERT INTO merge_for_alter (i) VALUES ({})({})".format(k, k+1))
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assert TSV(instance.query("SELECT i FROM all_merge_32 ORDER BY i")) == TSV(''.join(['{}\n'.format(x) for x in xrange(4)]))
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ddl_check_query(instance, "ALTER TABLE merge_for_alter ON CLUSTER cluster MODIFY COLUMN i Int64")
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ddl_check_query(instance, "ALTER TABLE merge_for_alter ON CLUSTER cluster ADD COLUMN s DEFAULT toString(i)")
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(''.join(['{}\t{}\n'.format(x,x) for x in xrange(4)]))
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for i in xrange(4):
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k = (i / 2) * 2 + 4
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insert_reliable(cluster.instances['ch{}'.format(i + 1)], "INSERT INTO merge_for_alter (p, i) VALUES (31, {})(31, {})".format(k, k+1))
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(''.join(['{}\t{}\n'.format(x,x) for x in xrange(8)]))
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ddl_check_query(instance, "ALTER TABLE merge_for_alter ON CLUSTER cluster DETACH PARTITION 197002")
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(''.join(['{}\t{}\n'.format(x,x) for x in xrange(4)]))
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ddl_check_query(instance, "DROP TABLE merge_for_alter ON CLUSTER cluster")
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# Enable random ZK packet drops
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cluster.pm_random_drops.push_rules(firewall_drops_rules)
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ddl_check_query(instance, "DROP TABLE all_merge_32 ON CLUSTER cluster")
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ddl_check_query(instance, "DROP TABLE all_merge_64 ON CLUSTER cluster")
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def test_simple_alters(started_cluster):
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instance = cluster.instances['ch2']
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ddl_check_query(instance, "DROP TABLE IF EXISTS merge ON CLUSTER cluster_without_replication")
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ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_32 ON CLUSTER cluster_without_replication")
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ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_64 ON CLUSTER cluster_without_replication")
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS merge ON CLUSTER cluster_without_replication (p Date, i Int32)
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ENGINE = MergeTree(p, p, 1)
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""")
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS all_merge_32 ON CLUSTER cluster_without_replication (p Date, i Int32)
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ENGINE = Distributed(cluster_without_replication, default, merge, i)
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""")
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS all_merge_64 ON CLUSTER cluster_without_replication (p Date, i Int64, s String)
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ENGINE = Distributed(cluster_without_replication, default, merge, i)
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""")
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for i in xrange(4):
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k = (i / 2) * 2
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cluster.instances['ch{}'.format(i + 1)].query("INSERT INTO merge (i) VALUES ({})({})".format(k, k+1))
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assert TSV(instance.query("SELECT i FROM all_merge_32 ORDER BY i")) == TSV(''.join(['{}\n'.format(x) for x in xrange(4)]))
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time.sleep(5)
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ddl_check_query(instance, "ALTER TABLE merge ON CLUSTER cluster_without_replication MODIFY COLUMN i Int64")
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time.sleep(5)
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ddl_check_query(instance, "ALTER TABLE merge ON CLUSTER cluster_without_replication ADD COLUMN s DEFAULT toString(i) FORMAT TSV")
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(''.join(['{}\t{}\n'.format(x,x) for x in xrange(4)]))
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for i in xrange(4):
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k = (i / 2) * 2 + 4
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cluster.instances['ch{}'.format(i + 1)].query("INSERT INTO merge (p, i) VALUES (31, {})(31, {})".format(k, k+1))
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(''.join(['{}\t{}\n'.format(x,x) for x in xrange(8)]))
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ddl_check_query(instance, "ALTER TABLE merge ON CLUSTER cluster_without_replication DETACH PARTITION 197002")
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(''.join(['{}\t{}\n'.format(x,x) for x in xrange(4)]))
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ddl_check_query(instance, "DROP TABLE merge ON CLUSTER cluster_without_replication")
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ddl_check_query(instance, "DROP TABLE all_merge_32 ON CLUSTER cluster_without_replication")
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ddl_check_query(instance, "DROP TABLE all_merge_64 ON CLUSTER cluster_without_replication")
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def test_macro(started_cluster):
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instance = cluster.instances['ch2']
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ddl_check_query(instance, "CREATE TABLE tab ON CLUSTER '{cluster}' (value UInt8) ENGINE = Memory")
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for i in xrange(4):
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insert_reliable(cluster.instances['ch{}'.format(i + 1)], "INSERT INTO tab VALUES ({})".format(i))
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ddl_check_query(instance, "CREATE TABLE distr ON CLUSTER '{cluster}' (value UInt8) ENGINE = Distributed('{cluster}', 'default', 'tab', value % 4)")
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assert TSV(instance.query("SELECT value FROM distr ORDER BY value")) == TSV('0\n1\n2\n3\n')
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assert TSV( cluster.instances['ch3'].query("SELECT value FROM distr ORDER BY value")) == TSV('0\n1\n2\n3\n')
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ddl_check_query(instance, "DROP TABLE IF EXISTS distr ON CLUSTER '{cluster}'")
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ddl_check_query(instance, "DROP TABLE IF EXISTS tab ON CLUSTER '{cluster}'")
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def test_implicit_macros(started_cluster):
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# Temporarily disable random ZK packet drops, they might broke creation if ReplicatedMergeTree replicas
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firewall_drops_rules = cluster.pm_random_drops.pop_rules()
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instance = cluster.instances['ch2']
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ddl_check_query(instance, "DROP DATABASE IF EXISTS test_db ON CLUSTER '{cluster}'")
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ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS test_db ON CLUSTER '{cluster}'")
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ddl_check_query(instance, """
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CREATE TABLE IF NOT EXISTS test_db.test_macro ON CLUSTER '{cluster}' (p Date, i Int32)
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ENGINE = ReplicatedMergeTree('/clickhouse/tables/{database}/{layer}-{shard}/{table}', '{replica}', p, p, 1)
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""")
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# Check that table was created at correct path in zookeeper
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assert cluster.get_kazoo_client('zoo1').exists('/clickhouse/tables/test_db/0-1/test_macro') is not None
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# Enable random ZK packet drops
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cluster.pm_random_drops.push_rules(firewall_drops_rules)
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def test_allowed_databases(started_cluster):
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instance = cluster.instances['ch2']
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instance.query("CREATE DATABASE IF NOT EXISTS db1 ON CLUSTER cluster")
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instance.query("CREATE DATABASE IF NOT EXISTS db2 ON CLUSTER cluster")
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instance.query("CREATE TABLE db1.t1 ON CLUSTER cluster (i Int8) ENGINE = Memory", settings={"user" : "restricted_user"})
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with pytest.raises(Exception):
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instance.query("CREATE TABLE db2.t2 ON CLUSTER cluster (i Int8) ENGINE = Memory", settings={"user" : "restricted_user"})
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with pytest.raises(Exception):
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instance.query("CREATE TABLE t3 ON CLUSTER cluster (i Int8) ENGINE = Memory", settings={"user" : "restricted_user"})
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with pytest.raises(Exception):
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instance.query("DROP DATABASE db2 ON CLUSTER cluster", settings={"user" : "restricted_user"})
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instance.query("DROP DATABASE db1 ON CLUSTER cluster", settings={"user" : "restricted_user"})
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def test_kill_query(started_cluster):
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instance = cluster.instances['ch3']
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ddl_check_query(instance, "KILL QUERY ON CLUSTER 'cluster' WHERE NOT elapsed FORMAT TSV")
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def test_detach_query(started_cluster):
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instance = cluster.instances['ch3']
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ddl_check_query(instance, "DROP TABLE IF EXISTS test_attach ON CLUSTER cluster FORMAT TSV")
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ddl_check_query(instance, "CREATE TABLE test_attach ON CLUSTER cluster (i Int8)ENGINE = Log")
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ddl_check_query(instance, "DETACH TABLE test_attach ON CLUSTER cluster FORMAT TSV")
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ddl_check_query(instance, "ATTACH TABLE test_attach ON CLUSTER cluster")
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def test_optimize_query(started_cluster):
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instance = cluster.instances['ch3']
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ddl_check_query(instance, "DROP TABLE IF EXISTS test_optimize ON CLUSTER cluster FORMAT TSV")
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ddl_check_query(instance, "CREATE TABLE test_optimize ON CLUSTER cluster (p Date, i Int32) ENGINE = MergeTree(p, p, 8192)")
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ddl_check_query(instance, "OPTIMIZE TABLE test_optimize ON CLUSTER cluster FORMAT TSV")
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def test_create_as_select(started_cluster):
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instance = cluster.instances['ch2']
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ddl_check_query(instance, "CREATE TABLE test_as_select ON CLUSTER cluster ENGINE = Memory AS (SELECT 1 AS x UNION ALL SELECT 2 AS x)")
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assert TSV(instance.query("SELECT x FROM test_as_select ORDER BY x")) == TSV("1\n2\n")
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ddl_check_query(instance, "DROP TABLE IF EXISTS test_as_select ON CLUSTER cluster")
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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...")
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