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100 lines
4.2 KiB
Python
100 lines
4.2 KiB
Python
import os
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import sys
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import time
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import pytest
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from helpers.test_tools import TSV
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from .cluster import ClickHouseClusterWithDDLHelpers
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@pytest.fixture(scope="module", params=["configs", "configs_secure"])
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def test_cluster(request):
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cluster = ClickHouseClusterWithDDLHelpers(__file__, request.param, "alters_" + request.param)
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try:
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# TODO: Fix ON CLUSTER alters when nodes have different configs. Need to canonicalize node identity.
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cluster.prepare(replace_hostnames_with_ips=False)
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yield cluster
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instance = cluster.instances['ch1']
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cluster.ddl_check_query(instance, "DROP DATABASE test ON CLUSTER 'cluster'")
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cluster.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 list(cluster.instances.values()):
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cluster.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_replicated_alters(test_cluster):
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instance = test_cluster.instances['ch2']
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test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS merge_for_alter ON CLUSTER cluster SYNC")
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test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_32 ON CLUSTER cluster SYNC")
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test_cluster.ddl_check_query(instance, "DROP TABLE IF EXISTS all_merge_64 ON CLUSTER cluster SYNC")
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# Temporarily disable random ZK packet drops, they might broke creation if ReplicatedMergeTree replicas
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firewall_drops_rules = test_cluster.pm_random_drops.pop_rules()
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test_cluster.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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test_cluster.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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test_cluster.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 range(4):
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k = (i // 2) * 2
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test_cluster.insert_reliable(test_cluster.instances['ch{}'.format(i + 1)],
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"INSERT INTO merge_for_alter (i) VALUES ({})({})".format(k, k + 1))
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test_cluster.sync_replicas("merge_for_alter")
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assert TSV(instance.query("SELECT i FROM all_merge_32 ORDER BY i")) == TSV(
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''.join(['{}\n'.format(x) for x in range(4)]))
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test_cluster.ddl_check_query(instance, "ALTER TABLE merge_for_alter ON CLUSTER cluster MODIFY COLUMN i Int64")
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test_cluster.ddl_check_query(instance,
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"ALTER TABLE merge_for_alter ON CLUSTER cluster ADD COLUMN s String DEFAULT toString(i)")
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(
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''.join(['{}\t{}\n'.format(x, x) for x in range(4)]))
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for i in range(4):
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k = (i // 2) * 2 + 4
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test_cluster.insert_reliable(test_cluster.instances['ch{}'.format(i + 1)],
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"INSERT INTO merge_for_alter (p, i) VALUES (31, {})(31, {})".format(k, k + 1))
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test_cluster.sync_replicas("merge_for_alter")
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assert TSV(instance.query("SELECT i, s FROM all_merge_64 ORDER BY i")) == TSV(
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''.join(['{}\t{}\n'.format(x, x) for x in range(8)]))
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test_cluster.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(
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''.join(['{}\t{}\n'.format(x, x) for x in range(4)]))
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test_cluster.ddl_check_query(instance, "DROP TABLE merge_for_alter ON CLUSTER cluster SYNC")
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# Enable random ZK packet drops
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test_cluster.pm_random_drops.push_rules(firewall_drops_rules)
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test_cluster.ddl_check_query(instance, "DROP TABLE all_merge_32 ON CLUSTER cluster SYNC")
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test_cluster.ddl_check_query(instance, "DROP TABLE all_merge_64 ON CLUSTER cluster SYNC")
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