import os import sys import time from contextlib import contextmanager import pytest sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) from helpers.network import PartitionManager from helpers.test_tools import TSV from .cluster import ClickHouseClusterWithDDLHelpers @pytest.fixture(scope="module", params=["configs", "configs_secure"]) def test_cluster(request): cluster = ClickHouseClusterWithDDLHelpers(__file__, request.param, request.param) try: cluster.prepare() yield cluster instance = cluster.instances['ch1'] cluster.ddl_check_query(instance, "DROP DATABASE test ON CLUSTER 'cluster'") cluster.ddl_check_query(instance, "DROP DATABASE IF EXISTS test2 ON CLUSTER 'cluster'") # Check query log to ensure that DDL queries are not executed twice time.sleep(1.5) for instance in list(cluster.instances.values()): cluster.ddl_check_there_are_no_dublicates(instance) cluster.pm_random_drops.heal_all() finally: cluster.shutdown() def test_default_database(test_cluster): instance = test_cluster.instances['ch3'] test_cluster.ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS test2 ON CLUSTER 'cluster' FORMAT TSV") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS null ON CLUSTER 'cluster' FORMAT TSV") test_cluster.ddl_check_query(instance, "CREATE TABLE null ON CLUSTER 'cluster2' (s String DEFAULT 'escape\t\nme') ENGINE = Null") contents = instance.query("SELECT hostName() AS h, database FROM all_tables WHERE name = 'null' ORDER BY h") assert TSV(contents) == TSV("ch1\tdefault\nch2\ttest2\nch3\tdefault\nch4\ttest2\n") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS null ON CLUSTER cluster2") test_cluster.ddl_check_query(instance, "DROP DATABASE IF EXISTS test2 ON CLUSTER 'cluster'") def test_create_view(test_cluster): instance = test_cluster.instances['ch3'] test_cluster.ddl_check_query(instance, "CREATE VIEW test.super_simple_view ON CLUSTER 'cluster' AS SELECT * FROM system.numbers FORMAT TSV") test_cluster.ddl_check_query(instance, "CREATE MATERIALIZED VIEW test.simple_mat_view ON CLUSTER 'cluster' ENGINE = Memory AS SELECT * FROM system.numbers FORMAT TSV") test_cluster.ddl_check_query(instance, "DROP TABLE test.simple_mat_view ON CLUSTER 'cluster' FORMAT TSV") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test.super_simple_view2 ON CLUSTER 'cluster' FORMAT TSV") test_cluster.ddl_check_query(instance, "CREATE TABLE test.super_simple ON CLUSTER 'cluster' (i Int8) ENGINE = Memory") test_cluster.ddl_check_query(instance, "RENAME TABLE test.super_simple TO test.super_simple2 ON CLUSTER 'cluster' FORMAT TSV") test_cluster.ddl_check_query(instance, "DROP TABLE test.super_simple2 ON CLUSTER 'cluster'") def test_on_server_fail(test_cluster): instance = test_cluster.instances['ch1'] kill_instance = test_cluster.instances['ch2'] test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test.test_server_fail ON CLUSTER 'cluster'") kill_instance.get_docker_handle().stop() request = instance.get_query_request("CREATE TABLE test.test_server_fail ON CLUSTER 'cluster' (i Int8) ENGINE=Null", timeout=30) kill_instance.get_docker_handle().start() test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test.__nope__ ON CLUSTER 'cluster'") # Check query itself test_cluster.check_all_hosts_successfully_executed(request.get_answer()) # And check query artefacts contents = instance.query( "SELECT hostName() AS h FROM all_tables WHERE database='test' AND name='test_server_fail' ORDER BY h") assert TSV(contents) == TSV("ch1\nch2\nch3\nch4\n") test_cluster.ddl_check_query(instance, "DROP TABLE test.test_server_fail ON CLUSTER 'cluster'") def _test_on_connection_losses(test_cluster, zk_timeout): instance = test_cluster.instances['ch1'] kill_instance = test_cluster.instances['ch2'] with PartitionManager() as pm: pm.drop_instance_zk_connections(kill_instance) request = instance.get_query_request("DROP TABLE IF EXISTS test.__nope__ ON CLUSTER 'cluster'", timeout=20) time.sleep(zk_timeout) pm.restore_instance_zk_connections(kill_instance) test_cluster.check_all_hosts_successfully_executed(request.get_answer()) def test_on_connection_loss(test_cluster): _test_on_connection_losses(test_cluster, 5) # connection loss will occur only (3 sec ZK timeout in config) def test_on_session_expired(test_cluster): _test_on_connection_losses(test_cluster, 15) # session should be expired (3 sec ZK timeout in config) def test_simple_alters(test_cluster): instance = test_cluster.instances['ch2'] test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS merge ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_32 ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_64 ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, """ CREATE TABLE IF NOT EXISTS merge ON CLUSTER '{cluster}' (p Date, i Int32) ENGINE = MergeTree(p, p, 1) """) test_cluster.ddl_check_query(instance, """ CREATE TABLE IF NOT EXISTS all_merge_32 ON CLUSTER '{cluster}' (p Date, i Int32) ENGINE = Distributed('{cluster}', default, merge, i) """) test_cluster.ddl_check_query(instance, """ CREATE TABLE IF NOT EXISTS all_merge_64 ON CLUSTER '{cluster}' (p Date, i Int64, s String) ENGINE = Distributed('{cluster}', default, merge, i) """) for i in range(0, 4, 2): k = (i / 2) * 2 test_cluster.instances['ch{}'.format(i + 1)].query("INSERT INTO merge (i) VALUES ({})({})".format(k, k + 1)) assert TSV(instance.query("SELECT i FROM all_merge_32 ORDER BY i")) == TSV( ''.join(['{}\n'.format(x) for x in range(4)])) time.sleep(5) test_cluster.ddl_check_query(instance, "ALTER TABLE merge ON CLUSTER '{cluster}' MODIFY COLUMN i Int64") time.sleep(5) test_cluster.ddl_check_query(instance, "ALTER TABLE merge ON CLUSTER '{cluster}' ADD COLUMN s String DEFAULT toString(i) FORMAT TSV") assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV( ''.join(['{}\t{}\n'.format(x, x) for x in range(4)])) for i in range(0, 4, 2): k = (i / 2) * 2 + 4 test_cluster.instances['ch{}'.format(i + 1)].query( "INSERT INTO merge (p, i) VALUES (31, {})(31, {})".format(k, k + 1)) assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV( ''.join(['{}\t{}\n'.format(x, x) for x in range(8)])) test_cluster.ddl_check_query(instance, "ALTER TABLE merge ON CLUSTER '{cluster}' DETACH PARTITION 197002") assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV( ''.join(['{}\t{}\n'.format(x, x) for x in range(4)])) test_cluster.ddl_check_query(instance, "DROP TABLE merge ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, "DROP TABLE all_merge_32 ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, "DROP TABLE all_merge_64 ON CLUSTER '{cluster}'") def test_macro(test_cluster): instance = test_cluster.instances['ch2'] test_cluster.ddl_check_query(instance, "CREATE TABLE tab ON CLUSTER '{cluster}' (value UInt8) ENGINE = Memory") for i in range(4): test_cluster.insert_reliable(test_cluster.instances['ch{}'.format(i + 1)], "INSERT INTO tab VALUES ({})".format(i)) test_cluster.ddl_check_query(instance, "CREATE TABLE distr ON CLUSTER '{cluster}' (value UInt8) ENGINE = Distributed('{cluster}', 'default', 'tab', value % 4)") assert TSV(instance.query("SELECT value FROM distr ORDER BY value")) == TSV('0\n1\n2\n3\n') assert TSV(test_cluster.instances['ch3'].query("SELECT value FROM distr ORDER BY value")) == TSV('0\n1\n2\n3\n') test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS distr ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS tab ON CLUSTER '{cluster}'") def test_implicit_macros(test_cluster): # Temporarily disable random ZK packet drops, they might broke creation if ReplicatedMergeTree replicas firewall_drops_rules = test_cluster.pm_random_drops.pop_rules() instance = test_cluster.instances['ch2'] test_cluster.ddl_check_query(instance, "DROP DATABASE IF EXISTS test_db ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, "CREATE DATABASE IF NOT EXISTS test_db ON CLUSTER '{cluster}'") test_cluster.ddl_check_query(instance, """ CREATE TABLE IF NOT EXISTS test_db.test_macro ON CLUSTER '{cluster}' (p Date, i Int32) ENGINE = ReplicatedMergeTree('/clickhouse/tables/{database}/{layer}-{shard}/{table}', '{replica}', p, p, 1) """) # Check that table was created at correct path in zookeeper assert test_cluster.get_kazoo_client('zoo1').exists('/clickhouse/tables/test_db/0-1/test_macro') is not None # Enable random ZK packet drops test_cluster.pm_random_drops.push_rules(firewall_drops_rules) def test_allowed_databases(test_cluster): instance = test_cluster.instances['ch2'] instance.query("CREATE DATABASE IF NOT EXISTS db1 ON CLUSTER cluster") instance.query("CREATE DATABASE IF NOT EXISTS db2 ON CLUSTER cluster") instance.query("CREATE TABLE db1.t1 ON CLUSTER cluster (i Int8) ENGINE = Memory", settings={"user": "restricted_user"}) with pytest.raises(Exception): instance.query("CREATE TABLE db2.t2 ON CLUSTER cluster (i Int8) ENGINE = Memory", settings={"user": "restricted_user"}) with pytest.raises(Exception): instance.query("CREATE TABLE t3 ON CLUSTER cluster (i Int8) ENGINE = Memory", settings={"user": "restricted_user"}) with pytest.raises(Exception): instance.query("DROP DATABASE db2 ON CLUSTER cluster", settings={"user": "restricted_user"}) instance.query("DROP DATABASE db1 ON CLUSTER cluster", settings={"user": "restricted_user"}) def test_kill_query(test_cluster): instance = test_cluster.instances['ch3'] test_cluster.ddl_check_query(instance, "KILL QUERY ON CLUSTER 'cluster' WHERE NOT elapsed FORMAT TSV") def test_detach_query(test_cluster): instance = test_cluster.instances['ch3'] test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test_attach ON CLUSTER cluster FORMAT TSV") test_cluster.ddl_check_query(instance, "CREATE TABLE test_attach ON CLUSTER cluster (i Int8)ENGINE = Log") test_cluster.ddl_check_query(instance, "DETACH TABLE test_attach ON CLUSTER cluster FORMAT TSV") test_cluster.ddl_check_query(instance, "ATTACH TABLE test_attach ON CLUSTER cluster") def test_optimize_query(test_cluster): instance = test_cluster.instances['ch3'] test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test_optimize ON CLUSTER cluster FORMAT TSV") test_cluster.ddl_check_query(instance, "CREATE TABLE test_optimize ON CLUSTER cluster (p Date, i Int32) ENGINE = MergeTree(p, p, 8192)") test_cluster.ddl_check_query(instance, "OPTIMIZE TABLE test_optimize ON CLUSTER cluster FORMAT TSV") def test_create_as_select(test_cluster): instance = test_cluster.instances['ch2'] test_cluster.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)") assert TSV(instance.query("SELECT x FROM test_as_select ORDER BY x")) == TSV("1\n2\n") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test_as_select ON CLUSTER cluster") def test_create_reserved(test_cluster): instance = test_cluster.instances['ch2'] test_cluster.ddl_check_query(instance, "CREATE TABLE test_reserved ON CLUSTER cluster (`p` Date, `image` Nullable(String), `index` Nullable(Float64), `invalidate` Nullable(Int64)) ENGINE = MergeTree(`p`, `p`, 8192)") test_cluster.ddl_check_query(instance, "CREATE TABLE test_as_reserved ON CLUSTER cluster ENGINE = Memory AS (SELECT * from test_reserved)") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test_reserved ON CLUSTER cluster") test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS test_as_reserved ON CLUSTER cluster") def test_rename(test_cluster): instance = test_cluster.instances['ch1'] rules = test_cluster.pm_random_drops.pop_rules() test_cluster.ddl_check_query(instance, "CREATE TABLE rename_shard ON CLUSTER cluster (id Int64, sid String DEFAULT concat('old', toString(id))) ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/staging/test_shard', '{replica}') ORDER BY (id)") test_cluster.ddl_check_query(instance, "CREATE TABLE rename_new ON CLUSTER cluster AS rename_shard ENGINE = Distributed(cluster, default, rename_shard, id % 2)") test_cluster.ddl_check_query(instance, "RENAME TABLE rename_new TO rename ON CLUSTER cluster;") for i in range(10): instance.query("insert into rename (id) values ({})".format(i)) # FIXME ddl_check_query doesnt work for replicated DDDL if replace_hostnames_with_ips=True # because replicas use wrong host name of leader (and wrong path in zk) to check if it has executed query # so ddl query will always fail on some replicas even if query was actually executed by leader # Also such inconsistency in cluster configuration may lead to query duplication if leader suddenly changed # because path of lock in zk contains shard name, which is list of host names of replicas instance.query( "ALTER TABLE rename_shard ON CLUSTER cluster MODIFY COLUMN sid String DEFAULT concat('new', toString(id))", ignore_error=True) time.sleep(1) test_cluster.ddl_check_query(instance, "CREATE TABLE rename_new ON CLUSTER cluster AS rename_shard ENGINE = Distributed(cluster, default, rename_shard, id % 2)") instance.query("system stop distributed sends rename") for i in range(10, 20): instance.query("insert into rename (id) values ({})".format(i)) test_cluster.ddl_check_query(instance, "RENAME TABLE rename TO rename_old, rename_new TO rename ON CLUSTER cluster") for i in range(20, 30): instance.query("insert into rename (id) values ({})".format(i)) instance.query("system flush distributed rename") for name in ['ch1', 'ch2', 'ch3', 'ch4']: test_cluster.instances[name].query("system sync replica rename_shard") # system stop distributed sends does not affect inserts into local shard, # so some ids in range (10, 20) will be inserted into rename_shard assert instance.query("select count(id), sum(id) from rename").rstrip() == "25\t360" # assert instance.query("select count(id), sum(id) from rename").rstrip() == "20\t290" assert instance.query("select count(id), sum(id) from rename where sid like 'old%'").rstrip() == "15\t115" # assert instance.query("select count(id), sum(id) from rename where sid like 'old%'").rstrip() == "10\t45" assert instance.query("select count(id), sum(id) from rename where sid like 'new%'").rstrip() == "10\t245" test_cluster.pm_random_drops.push_rules(rules) def test_socket_timeout(test_cluster): instance = test_cluster.instances['ch1'] # queries should not fail with "Timeout exceeded while reading from socket" in case of EINTR caused by query profiler for i in range(0, 100): instance.query("select hostName() as host, count() from cluster('cluster', 'system', 'settings') group by host") def test_replicated_without_arguments(test_cluster): rules = test_cluster.pm_random_drops.pop_rules() instance = test_cluster.instances['ch1'] test_cluster.ddl_check_query(instance, "CREATE DATABASE test_atomic ON CLUSTER cluster ENGINE=Atomic") assert "are supported only for ON CLUSTER queries with Atomic database engine" in \ instance.query_and_get_error("CREATE TABLE test_atomic.rmt (n UInt64, s String) ENGINE=ReplicatedMergeTree ORDER BY n") test_cluster.ddl_check_query(instance, "CREATE TABLE test_atomic.rmt ON CLUSTER cluster (n UInt64, s String) ENGINE=ReplicatedMergeTree() ORDER BY n") test_cluster.ddl_check_query(instance, "DROP TABLE test_atomic.rmt ON CLUSTER cluster") test_cluster.ddl_check_query(instance, "CREATE TABLE test_atomic.rmt UUID '12345678-0000-4000-8000-000000000001' ON CLUSTER cluster (n UInt64, s String) ENGINE=ReplicatedMergeTree ORDER BY n") assert instance.query("SHOW CREATE test_atomic.rmt FORMAT TSVRaw") == \ "CREATE TABLE test_atomic.rmt\n(\n `n` UInt64,\n `s` String\n)\nENGINE = ReplicatedMergeTree('/clickhouse/tables/12345678-0000-4000-8000-000000000001/{shard}', '{replica}')\nORDER BY n\nSETTINGS index_granularity = 8192\n" test_cluster.ddl_check_query(instance, "RENAME TABLE test_atomic.rmt TO test_atomic.rmt_renamed ON CLUSTER cluster") test_cluster.ddl_check_query(instance, "CREATE TABLE test_atomic.rmt ON CLUSTER cluster (n UInt64, s String) ENGINE=ReplicatedMergeTree('/clickhouse/tables/{uuid}/{shard}', '{replica}') ORDER BY n") test_cluster.ddl_check_query(instance, "EXCHANGE TABLES test_atomic.rmt AND test_atomic.rmt_renamed ON CLUSTER cluster") assert instance.query("SELECT countDistinct(uuid) from clusterAllReplicas('cluster', 'system', 'databases') WHERE uuid != '00000000-0000-0000-0000-000000000000' AND name='test_atomic'") == "1\n" assert instance.query("SELECT countDistinct(uuid) from clusterAllReplicas('cluster', 'system', 'tables') WHERE uuid != '00000000-0000-0000-0000-000000000000' AND name='rmt'") == "1\n" test_cluster.ddl_check_query(instance, "CREATE TABLE test_atomic.rrmt ON CLUSTER cluster (n UInt64, m UInt64) ENGINE=ReplicatedReplacingMergeTree(m) ORDER BY n") test_cluster.ddl_check_query(instance, "CREATE TABLE test_atomic.rsmt ON CLUSTER cluster (n UInt64, m UInt64, k UInt64) ENGINE=ReplicatedSummingMergeTree((m, k)) ORDER BY n") test_cluster.ddl_check_query(instance, "CREATE TABLE test_atomic.rvcmt ON CLUSTER cluster (n UInt64, m Int8, k UInt64) ENGINE=ReplicatedVersionedCollapsingMergeTree(m, k) ORDER BY n") test_cluster.ddl_check_query(instance, "DROP DATABASE test_atomic ON CLUSTER cluster") test_cluster.ddl_check_query(instance, "CREATE DATABASE test_ordinary ON CLUSTER cluster ENGINE=Ordinary") assert "are supported only for ON CLUSTER queries with Atomic database engine" in \ instance.query_and_get_error("CREATE TABLE test_ordinary.rmt ON CLUSTER cluster (n UInt64, s String) ENGINE=ReplicatedMergeTree ORDER BY n") assert "are supported only for ON CLUSTER queries with Atomic database engine" in \ instance.query_and_get_error("CREATE TABLE test_ordinary.rmt ON CLUSTER cluster (n UInt64, s String) ENGINE=ReplicatedMergeTree('/{shard}/{uuid}/', '{replica}') ORDER BY n") test_cluster.ddl_check_query(instance, "CREATE TABLE test_ordinary.rmt ON CLUSTER cluster (n UInt64, s String) ENGINE=ReplicatedMergeTree('/{shard}/{table}/', '{replica}') ORDER BY n") assert instance.query("SHOW CREATE test_ordinary.rmt FORMAT TSVRaw") == \ "CREATE TABLE test_ordinary.rmt\n(\n `n` UInt64,\n `s` String\n)\nENGINE = ReplicatedMergeTree('/{shard}/rmt/', '{replica}')\nORDER BY n\nSETTINGS index_granularity = 8192\n" test_cluster.ddl_check_query(instance, "DROP DATABASE test_ordinary ON CLUSTER cluster") test_cluster.pm_random_drops.push_rules(rules) if __name__ == '__main__': with contextmanager(test_cluster)() as ctx_cluster: for name, instance in list(ctx_cluster.instances.items()): print(name, instance.ip_address) input("Cluster created, press any key to destroy...")