ClickHouse/tests/integration/test_recovery_replica/test.py

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import time
import pytest
from helpers.cluster import ClickHouseCluster
from helpers.test_tools import assert_eq_with_retry
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def fill_nodes(nodes, shard):
for node in nodes:
node.query(
'''
CREATE DATABASE test;
CREATE TABLE test_table(date Date, id UInt32)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/test{shard}/replicated', '{replica}') ORDER BY id PARTITION BY toYYYYMM(date) SETTINGS min_replicated_logs_to_keep=3, max_replicated_logs_to_keep=5, cleanup_delay_period=0, cleanup_delay_period_random_add=0;
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'''.format(shard=shard, replica=node.name))
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', main_configs=['configs/remote_servers.xml'], with_zookeeper=True)
node2 = cluster.add_instance('node2', main_configs=['configs/remote_servers.xml'], with_zookeeper=True)
@pytest.fixture(scope="module")
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def start_cluster():
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try:
cluster.start()
fill_nodes([node1, node2], 1)
yield cluster
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except Exception as ex:
print ex
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finally:
cluster.shutdown()
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def test_recovery(start_cluster):
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node1.query("INSERT INTO test_table VALUES (1, 1)")
time.sleep(1)
node2.query("DETACH TABLE test_table")
for i in range(100):
node1.query("INSERT INTO test_table VALUES (1, {})".format(i))
node2.query_with_retry("ATTACH TABLE test_table", check_callback=lambda x: len(node2.query("select * from test_table")) > 0)
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assert_eq_with_retry(node2, "SELECT count(*) FROM test_table", node1.query("SELECT count(*) FROM test_table"))