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87 lines
2.5 KiB
Python
87 lines
2.5 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.cluster import ClickHouseCluster
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from helpers.test_tools import TSV
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cluster = ClickHouseCluster(__file__)
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node0 = cluster.add_instance(
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"node0", with_zookeeper=True, main_configs=["configs/storage_configuration.xml"]
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)
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node1 = cluster.add_instance(
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"node1", with_zookeeper=True, main_configs=["configs/storage_configuration.xml"]
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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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yield cluster
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finally:
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cluster.shutdown()
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new_disk_config = """
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<clickhouse>
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<storage_configuration>
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<disks>
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<disk0>
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<path>/var/lib/clickhouse/disk0/</path>
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</disk0>
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<disk1>
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<path>/var/lib/clickhouse/disk1/</path>
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</disk1>
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<disk2>
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<path>/var/lib/clickhouse/disk2/</path>
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</disk2>
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</disks>
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<policies>
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<default_policy>
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<volumes>
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<default_volume>
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<disk>disk2</disk>
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<disk>disk1</disk>
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<disk>disk0</disk>
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</default_volume>
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</volumes>
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</default_policy>
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</policies>
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</storage_configuration>
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</clickhouse>
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"""
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def set_config(node, config):
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node.replace_config(
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"/etc/clickhouse-server/config.d/storage_configuration.xml", config
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)
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node.query("SYSTEM RELOAD CONFIG")
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def test_hot_reload_policy(started_cluster):
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node0.query(
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"CREATE TABLE t (d Int32, s String) ENGINE = ReplicatedMergeTree('/clickhouse/tables/t', '0') PARTITION BY d ORDER BY tuple() SETTINGS storage_policy = 'default_policy'"
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)
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node0.query("INSERT INTO TABLE t VALUES (1, 'foo') (1, 'bar')")
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node1.query(
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"CREATE TABLE t (d Int32, s String) ENGINE = ReplicatedMergeTree('/clickhouse/tables/t_mirror', '1') PARTITION BY d ORDER BY tuple() SETTINGS storage_policy = 'default_policy'"
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)
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set_config(node1, new_disk_config)
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time.sleep(1)
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node1.query("ALTER TABLE t FETCH PARTITION 1 FROM '/clickhouse/tables/t'")
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result = int(node1.query("SELECT count() FROM t"))
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assert (
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result == 4,
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"Node should have 2 x full data (4 rows) after reloading storage configuration and fetch new partition, but get {} rows".format(
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result
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),
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)
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