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https://github.com/ClickHouse/ClickHouse.git
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60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
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import logging
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import sys
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import pytest
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from helpers.cluster import ClickHouseCluster
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from pyhdfs import HdfsClient
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@pytest.fixture(scope="module")
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def cluster():
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try:
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cluster = ClickHouseCluster(__file__)
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cluster.add_instance("node",
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main_configs=["configs/storage_conf.xml", "configs/config.d/log_conf.xml"],
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with_hdfs=True)
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logging.info("Starting cluster...")
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cluster.start()
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logging.info("Cluster started")
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fs = HdfsClient(hosts='localhost')
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fs.mkdirs('/clickhouse')
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yield cluster
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finally:
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cluster.shutdown()
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def assert_objects_count(cluster, objects_count, path='data/'):
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fs = HdfsClient(hosts='localhost')
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hdfs_objects = fs.listdir('/clickhouse')
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assert objects_count == len(hdfs_objects)
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@pytest.mark.parametrize(
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"log_engine,files_overhead,files_overhead_per_insert",
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[("TinyLog", 1, 1), ("Log", 2, 1), ("StripeLog", 1, 2)])
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def test_log_family_hdfs(cluster, log_engine, files_overhead, files_overhead_per_insert):
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node = cluster.instances["node"]
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node.query("CREATE TABLE hdfs_test (id UInt64) ENGINE={} SETTINGS disk = 'hdfs'".format(log_engine))
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node.query("INSERT INTO hdfs_test SELECT number FROM numbers(5)")
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assert node.query("SELECT * FROM hdfs_test") == "0\n1\n2\n3\n4\n"
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assert_objects_count(cluster, files_overhead_per_insert + files_overhead)
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node.query("INSERT INTO hdfs_test SELECT number + 5 FROM numbers(3)")
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assert node.query("SELECT * FROM hdfs_test order by id") == "0\n1\n2\n3\n4\n5\n6\n7\n"
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assert_objects_count(cluster, files_overhead_per_insert * 2 + files_overhead)
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node.query("INSERT INTO hdfs_test SELECT number + 8 FROM numbers(1)")
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assert node.query("SELECT * FROM hdfs_test order by id") == "0\n1\n2\n3\n4\n5\n6\n7\n8\n"
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assert_objects_count(cluster, files_overhead_per_insert * 3 + files_overhead)
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node.query("TRUNCATE TABLE hdfs_test")
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assert_objects_count(cluster, 0)
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node.query("DROP TABLE hdfs_test")
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