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89 lines
2.7 KiB
Python
89 lines
2.7 KiB
Python
import logging
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import sys
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import pytest
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from helpers.cluster import ClickHouseCluster, is_arm
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from pyhdfs import HdfsClient
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if is_arm():
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pytestmark = pytest.mark.skip
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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 = ClickHouseCluster(__file__)
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cluster.add_instance(
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"node", main_configs=["configs/storage_conf.xml"], with_hdfs=True
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)
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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=cluster.hdfs_ip)
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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(started_cluster, objects_count, path="data/"):
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fs = HdfsClient(hosts=started_cluster.hdfs_ip)
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hdfs_objects = fs.listdir("/clickhouse")
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assert objects_count == len(hdfs_objects)
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# TinyLog: files: id.bin, sizes.json
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# INSERT overwrites 1 file (`sizes.json`) and appends 1 file (`id.bin`), so
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# files_overhead=1, files_overhead_per_insert=1
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#
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# Log: files: id.bin, __marks.mrk, sizes.json
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# INSERT overwrites 1 file (`sizes.json`), and appends 2 files (`id.bin`, `__marks.mrk`), so
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# files_overhead=1, files_overhead_per_insert=2
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#
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# StripeLog: files: data.bin, index.mrk, sizes.json
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# INSERT overwrites 1 file (`sizes.json`), and appends 2 files (`index.mrk`, `data.bin`), so
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# files_overhead=1, files_overhead_per_insert=2
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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", 1, 2), ("StripeLog", 1, 2)],
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)
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def test_log_family_hdfs(
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started_cluster, log_engine, files_overhead, files_overhead_per_insert
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):
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node = started_cluster.instances["node"]
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node.query(
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"CREATE TABLE hdfs_test (id UInt64) ENGINE={} SETTINGS disk = 'hdfs'".format(
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log_engine
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)
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)
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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(started_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 (
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node.query("SELECT * FROM hdfs_test order by id") == "0\n1\n2\n3\n4\n5\n6\n7\n"
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)
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assert_objects_count(
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started_cluster, files_overhead_per_insert * 2 + files_overhead
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)
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node.query("INSERT INTO hdfs_test SELECT number + 8 FROM numbers(1)")
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assert (
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node.query("SELECT * FROM hdfs_test order by id")
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== "0\n1\n2\n3\n4\n5\n6\n7\n8\n"
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)
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assert_objects_count(
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started_cluster, files_overhead_per_insert * 3 + files_overhead
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)
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node.query("TRUNCATE TABLE hdfs_test")
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assert_objects_count(started_cluster, 0)
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node.query("DROP TABLE hdfs_test")
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