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https://github.com/ClickHouse/ClickHouse.git
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111 lines
3.4 KiB
Python
111 lines
3.4 KiB
Python
import pytest
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from helpers.client import QueryRuntimeException
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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ch1 = cluster.add_instance(
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"ch1",
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main_configs=["configs/config.d/clusters.xml", "configs/config.d/ddl.xml"],
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with_zookeeper=True,
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)
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ch2 = cluster.add_instance(
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"ch2",
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main_configs=["configs/config.d/clusters.xml", "configs/config.d/ddl.xml"],
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with_zookeeper=True,
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)
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ch3 = cluster.add_instance(
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"ch3",
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main_configs=["configs/config.d/clusters.xml", "configs/config.d/ddl.xml"],
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with_zookeeper=True,
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)
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ch4 = cluster.add_instance(
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"ch4",
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main_configs=["configs/config.d/clusters.xml", "configs/config.d/ddl.xml"],
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with_zookeeper=True,
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)
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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cluster.start()
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ch1.query(
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"CREATE TABLE sometbl ON CLUSTER 'cluster' (key UInt64, value String) ENGINE = MergeTree ORDER by key"
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)
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yield cluster
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finally:
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cluster.shutdown()
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def test_dictionary_ddl_on_cluster(started_cluster):
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for node in [ch1, ch2, ch3, ch4]:
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assert node.query("SELECT count() from sometbl") == "0\n"
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for num, node in enumerate([ch1, ch2, ch3, ch4]):
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node.query("insert into sometbl values ({}, '{}')".format(num, node.name))
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ch1.query(
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"""
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CREATE DICTIONARY somedict ON CLUSTER 'cluster' (
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key UInt64,
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value String
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)
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PRIMARY KEY key
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LAYOUT(FLAT())
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SOURCE(CLICKHOUSE(HOST 'localhost' PORT 9000 USER 'default' TABLE 'sometbl' DB 'default'))
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LIFETIME(10)
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"""
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)
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for num, node in enumerate([ch1, ch2, ch3, ch4]):
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assert node.query("SELECT count() from sometbl") == "1\n"
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assert (
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node.query(
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"SELECT dictGetString('default.somedict', 'value', toUInt64({}))".format(
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num
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)
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)
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== node.name + "\n"
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)
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ch1.query("DETACH DICTIONARY default.somedict ON CLUSTER 'cluster'")
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for node in [ch1, ch2, ch3, ch4]:
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with pytest.raises(QueryRuntimeException):
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node.query("SELECT dictGetString('default.somedict', 'value', toUInt64(1))")
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ch1.query("ATTACH DICTIONARY default.somedict ON CLUSTER 'cluster'")
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for num, node in enumerate([ch1, ch2, ch3, ch4]):
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assert node.query("SELECT count() from sometbl") == "1\n"
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assert (
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node.query(
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"SELECT dictGetString('default.somedict', 'value', toUInt64({}))".format(
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num
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)
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)
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== node.name + "\n"
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)
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for num, node in enumerate([ch1, ch2, ch3, ch4]):
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node.query("ALTER TABLE sometbl UPDATE value = 'new_key' WHERE 1")
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ch1.query("SYSTEM RELOAD DICTIONARY ON CLUSTER 'cluster' `default.somedict`")
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for num, node in enumerate([ch1, ch2, ch3, ch4]):
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assert (
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node.query(
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"SELECT dictGetString('default.somedict', 'value', toUInt64({}))".format(
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num
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)
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)
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== "new_key" + "\n"
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)
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ch1.query("DROP DICTIONARY default.somedict ON CLUSTER 'cluster'")
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for node in [ch1, ch2, ch3, ch4]:
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with pytest.raises(QueryRuntimeException):
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node.query("SELECT dictGetString('default.somedict', 'value', toUInt64(1))")
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