import pytest import time from helpers.cluster import ClickHouseCluster cluster = ClickHouseCluster(__file__) node = cluster.add_instance('node', main_configs=['configs/logs.xml'], stay_alive=True) @pytest.fixture(scope="module") def started_cluster(): try: cluster.start() yield cluster finally: cluster.shutdown() def check_log_file(): assert node.path_exists("/var/log/clickhouse-server/clickhouse-server.log.lz4") lz4_output = node.exec_in_container(["bash", "-c", "lz4 -t /var/log/clickhouse-server/clickhouse-server.log.lz4 2>&1"], user='root') assert lz4_output.count('Error') == 0, lz4_output compressed_size = int(node.exec_in_container(["bash", "-c", "du -b /var/log/clickhouse-server/clickhouse-server.log.lz4 | awk {' print $1 '}"], user='root')) uncompressed_size = int(lz4_output.split()[3]) assert 0 < compressed_size < uncompressed_size, lz4_output def test_concatenation(started_cluster): node.stop_clickhouse() node.start_clickhouse() node.stop_clickhouse() check_log_file() def test_incomplete_rotation(started_cluster): node.stop_clickhouse(kill=True) node.start_clickhouse() node.stop_clickhouse() check_log_file()