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78 lines
2.2 KiB
Python
78 lines
2.2 KiB
Python
import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance(
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"node1",
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main_configs=["configs/remote_servers.xml"],
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with_zookeeper=True,
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stay_alive=True,
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)
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node2 = cluster.add_instance(
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"node2", main_configs=["configs/remote_servers.xml"], with_zookeeper=True
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)
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node3 = cluster.add_instance(
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"node3", main_configs=["configs/remote_servers.xml"], with_zookeeper=True
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)
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node4 = cluster.add_instance(
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"node4",
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main_configs=["configs/remote_servers.xml"],
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with_zookeeper=True,
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stay_alive=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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yield cluster
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finally:
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cluster.shutdown()
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def test_ddl_worker_replicas(started_cluster):
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for replica in ["node1:9000", "node2:9000", "node3:9000", "node4:9000"]:
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# wait until the replicas path is created
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node1.query_with_retry(
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sql=f"SELECT count() FROM system.zookeeper WHERE path='/clickhouse/task_queue/replicas/{replica}'",
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check_callback=lambda result: result == 1,
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)
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result = node1.query(
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f"SELECT name, value, ephemeralOwner FROM system.zookeeper WHERE path='/clickhouse/task_queue/replicas/{replica}'"
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).strip()
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print(f"result: {replica} {result}")
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lines = list(result.split("\n"))
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assert len(lines) == 1
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parts = list(lines[0].split("\t"))
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assert len(parts) == 3
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assert parts[0] == "active"
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assert len(parts[1]) != 0
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assert len(parts[2]) != 0
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try:
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node4.stop_clickhouse()
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# wait for node4 active path is removed
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node1.query_with_retry(
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sql=f"SELECT count() FROM system.zookeeper WHERE path='/clickhouse/task_queue/replicas/node4:9000'",
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check_callback=lambda result: result == 0,
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)
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result = node1.query_with_retry(
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f"SELECT name, value, ephemeralOwner FROM system.zookeeper WHERE path='/clickhouse/task_queue/replicas/node4:9000'"
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).strip()
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print(f"result: {replica} {result}")
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lines = list(result.split("\n"))
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assert len(lines) == 1
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assert len(lines[0]) == 0
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finally:
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node4.start_clickhouse()
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