import os import pytest from helpers.cluster import ClickHouseCluster from pyhdfs import HdfsClient cluster = ClickHouseCluster(__file__) node1 = cluster.add_instance('node1', with_hdfs=True) @pytest.fixture(scope="module") def started_cluster(): try: cluster.start() yield cluster finally: cluster.shutdown() def test_read_write_storage(started_cluster): hdfs_api = started_cluster.hdfs_api node1.query("drop table if exists SimpleHDFSStorage SYNC") node1.query( "create table SimpleHDFSStorage (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/simple_storage', 'TSV')") node1.query("insert into SimpleHDFSStorage values (1, 'Mark', 72.53)") assert hdfs_api.read_data("/simple_storage") == "1\tMark\t72.53\n" assert node1.query("select * from SimpleHDFSStorage") == "1\tMark\t72.53\n" def test_read_write_storage_with_globs(started_cluster): hdfs_api = started_cluster.hdfs_api node1.query( "create table HDFSStorageWithRange (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/storage{1..5}', 'TSV')") node1.query( "create table HDFSStorageWithEnum (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/storage{1,2,3,4,5}', 'TSV')") node1.query( "create table HDFSStorageWithQuestionMark (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/storage?', 'TSV')") node1.query( "create table HDFSStorageWithAsterisk (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/storage*', 'TSV')") for i in ["1", "2", "3"]: hdfs_api.write_data("/storage" + i, i + "\tMark\t72.53\n") assert hdfs_api.read_data("/storage" + i) == i + "\tMark\t72.53\n" assert node1.query("select count(*) from HDFSStorageWithRange") == "3\n" assert node1.query("select count(*) from HDFSStorageWithEnum") == "3\n" assert node1.query("select count(*) from HDFSStorageWithQuestionMark") == "3\n" assert node1.query("select count(*) from HDFSStorageWithAsterisk") == "3\n" try: node1.query("insert into HDFSStorageWithEnum values (1, 'NEW', 4.2)") assert False, "Exception have to be thrown" except Exception as ex: print(ex) assert "in readonly mode" in str(ex) try: node1.query("insert into HDFSStorageWithQuestionMark values (1, 'NEW', 4.2)") assert False, "Exception have to be thrown" except Exception as ex: print(ex) assert "in readonly mode" in str(ex) try: node1.query("insert into HDFSStorageWithAsterisk values (1, 'NEW', 4.2)") assert False, "Exception have to be thrown" except Exception as ex: print(ex) assert "in readonly mode" in str(ex) def test_read_write_table(started_cluster): hdfs_api = started_cluster.hdfs_api data = "1\tSerialize\t555.222\n2\tData\t777.333\n" hdfs_api.write_data("/simple_table_function", data) assert hdfs_api.read_data("/simple_table_function") == data assert node1.query( "select * from hdfs('hdfs://hdfs1:9000/simple_table_function', 'TSV', 'id UInt64, text String, number Float64')") == data def test_write_table(started_cluster): hdfs_api = started_cluster.hdfs_api node1.query( "create table OtherHDFSStorage (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/other_storage', 'TSV')") node1.query("insert into OtherHDFSStorage values (10, 'tomas', 55.55), (11, 'jack', 32.54)") result = "10\ttomas\t55.55\n11\tjack\t32.54\n" assert hdfs_api.read_data("/other_storage") == result assert node1.query("select * from OtherHDFSStorage order by id") == result def test_bad_hdfs_uri(started_cluster): try: node1.query( "create table BadStorage1 (id UInt32, name String, weight Float64) ENGINE = HDFS('hads:hgsdfs100500:9000/other_storage', 'TSV')") except Exception as ex: print(ex) assert "Bad hdfs url" in str(ex) try: node1.query( "create table BadStorage2 (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs100500:9000/other_storage', 'TSV')") except Exception as ex: print(ex) assert "Unable to create builder to connect to HDFS" in str(ex) try: node1.query( "create table BadStorage3 (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/<>', 'TSV')") except Exception as ex: print(ex) assert "Unable to open HDFS file" in str(ex) @pytest.mark.timeout(800) def test_globs_in_read_table(started_cluster): hdfs_api = started_cluster.hdfs_api some_data = "1\tSerialize\t555.222\n2\tData\t777.333\n" globs_dir = "/dir_for_test_with_globs/" files = ["dir1/dir_dir/file1", "dir2/file2", "simple_table_function", "dir/file", "some_dir/dir1/file", "some_dir/dir2/file", "some_dir/file", "table1_function", "table2_function", "table3_function"] for filename in files: hdfs_api.write_data(globs_dir + filename, some_data) test_requests = [("dir{1..5}/dir_dir/file1", 1, 1), ("*_table_functio?", 1, 1), ("dir/fil?", 1, 1), ("table{3..8}_function", 1, 1), ("table{2..8}_function", 2, 2), ("dir/*", 1, 1), ("dir/*?*?*?*?*", 1, 1), ("dir/*?*?*?*?*?*", 0, 0), ("some_dir/*/file", 2, 1), ("some_dir/dir?/*", 2, 1), ("*/*/*", 3, 2), ("?", 0, 0)] for pattern, paths_amount, files_amount in test_requests: inside_table_func = "'hdfs://hdfs1:9000" + globs_dir + pattern + "', 'TSV', 'id UInt64, text String, number Float64'" print("inside_table_func ", inside_table_func) assert node1.query("select * from hdfs(" + inside_table_func + ")") == paths_amount * some_data assert node1.query("select count(distinct _path) from hdfs(" + inside_table_func + ")").rstrip() == str( paths_amount) assert node1.query("select count(distinct _file) from hdfs(" + inside_table_func + ")").rstrip() == str( files_amount) def test_read_write_gzip_table(started_cluster): hdfs_api = started_cluster.hdfs_api data = "1\tHello Jessica\t555.222\n2\tI rolled a joint\t777.333\n" hdfs_api.write_gzip_data("/simple_table_function.gz", data) assert hdfs_api.read_gzip_data("/simple_table_function.gz") == data assert node1.query( "select * from hdfs('hdfs://hdfs1:9000/simple_table_function.gz', 'TSV', 'id UInt64, text String, number Float64')") == data def test_read_write_gzip_table_with_parameter_gzip(started_cluster): hdfs_api = started_cluster.hdfs_api data = "1\tHello Jessica\t555.222\n2\tI rolled a joint\t777.333\n" hdfs_api.write_gzip_data("/simple_table_function", data) assert hdfs_api.read_gzip_data("/simple_table_function") == data assert node1.query( "select * from hdfs('hdfs://hdfs1:9000/simple_table_function', 'TSV', 'id UInt64, text String, number Float64', 'gzip')") == data def test_read_write_table_with_parameter_none(started_cluster): hdfs_api = started_cluster.hdfs_api data = "1\tHello Jessica\t555.222\n2\tI rolled a joint\t777.333\n" hdfs_api.write_data("/simple_table_function.gz", data) assert hdfs_api.read_data("/simple_table_function.gz") == data assert node1.query( "select * from hdfs('hdfs://hdfs1:9000/simple_table_function.gz', 'TSV', 'id UInt64, text String, number Float64', 'none')") == data def test_read_write_gzip_table_with_parameter_auto_gz(started_cluster): hdfs_api = started_cluster.hdfs_api data = "1\tHello Jessica\t555.222\n2\tI rolled a joint\t777.333\n" hdfs_api.write_gzip_data("/simple_table_function.gz", data) assert hdfs_api.read_gzip_data("/simple_table_function.gz") == data assert node1.query( "select * from hdfs('hdfs://hdfs1:9000/simple_table_function.gz', 'TSV', 'id UInt64, text String, number Float64', 'auto')") == data def test_write_gz_storage(started_cluster): hdfs_api = started_cluster.hdfs_api node1.query( "create table GZHDFSStorage (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/storage.gz', 'TSV')") node1.query("insert into GZHDFSStorage values (1, 'Mark', 72.53)") assert hdfs_api.read_gzip_data("/storage.gz") == "1\tMark\t72.53\n" assert node1.query("select * from GZHDFSStorage") == "1\tMark\t72.53\n" def test_write_gzip_storage(started_cluster): hdfs_api = started_cluster.hdfs_api node1.query( "create table GZIPHDFSStorage (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/gzip_storage', 'TSV', 'gzip')") node1.query("insert into GZIPHDFSStorage values (1, 'Mark', 72.53)") assert hdfs_api.read_gzip_data("/gzip_storage") == "1\tMark\t72.53\n" assert node1.query("select * from GZIPHDFSStorage") == "1\tMark\t72.53\n" def test_virtual_columns(started_cluster): hdfs_api = started_cluster.hdfs_api node1.query("create table virtual_cols (id UInt32) ENGINE = HDFS('hdfs://hdfs1:9000/file*', 'TSV')") hdfs_api.write_data("/file1", "1\n") hdfs_api.write_data("/file2", "2\n") hdfs_api.write_data("/file3", "3\n") expected = "1\tfile1\thdfs://hdfs1:9000//file1\n2\tfile2\thdfs://hdfs1:9000//file2\n3\tfile3\thdfs://hdfs1:9000//file3\n" assert node1.query("select id, _file as file_name, _path as file_path from virtual_cols order by id") == expected def test_read_files_with_spaces(started_cluster): hdfs_api = started_cluster.hdfs_api fs = HdfsClient(hosts=started_cluster.hdfs_ip) dir = '/test_spaces' exists = fs.exists(dir) if exists: fs.delete(dir, recursive=True) fs.mkdirs(dir) hdfs_api.write_data(f"{dir}/test test test 1.txt", "1\n") hdfs_api.write_data(f"{dir}/test test test 2.txt", "2\n") hdfs_api.write_data(f"{dir}/test test test 3.txt", "3\n") node1.query(f"create table test (id UInt32) ENGINE = HDFS('hdfs://hdfs1:9000/{dir}/test*', 'TSV')") assert node1.query("select * from test order by id") == "1\n2\n3\n" fs.delete(dir, recursive=True) def test_truncate_table(started_cluster): hdfs_api = started_cluster.hdfs_api node1.query( "create table test_truncate (id UInt32, name String, weight Float64) ENGINE = HDFS('hdfs://hdfs1:9000/tr', 'TSV')") node1.query("insert into test_truncate values (1, 'Mark', 72.53)") assert hdfs_api.read_data("/tr") == "1\tMark\t72.53\n" assert node1.query("select * from test_truncate") == "1\tMark\t72.53\n" node1.query("truncate table test_truncate") assert node1.query("select * from test_truncate") == "" node1.query("drop table test_truncate") def test_partition_by(started_cluster): hdfs_api = started_cluster.hdfs_api table_format = "column1 UInt32, column2 UInt32, column3 UInt32" file_name = "test_{_partition_id}" partition_by = "column3" values = "(1, 2, 3), (3, 2, 1), (1, 3, 2)" table_function = f"hdfs('hdfs://hdfs1:9000/{file_name}', 'TSV', '{table_format}')" node1.query(f"insert into table function {table_function} PARTITION BY {partition_by} values {values}") result = node1.query(f"select * from hdfs('hdfs://hdfs1:9000/test_1', 'TSV', '{table_format}')") assert(result.strip() == "3\t2\t1") result = node1.query(f"select * from hdfs('hdfs://hdfs1:9000/test_2', 'TSV', '{table_format}')") assert(result.strip() == "1\t3\t2") result = node1.query(f"select * from hdfs('hdfs://hdfs1:9000/test_3', 'TSV', '{table_format}')") assert(result.strip() == "1\t2\t3") file_name = "test2_{_partition_id}" node1.query(f"create table p(column1 UInt32, column2 UInt32, column3 UInt32) engine = HDFS('hdfs://hdfs1:9000/{file_name}', 'TSV') partition by column3") node1.query(f"insert into p values {values}") result = node1.query(f"select * from hdfs('hdfs://hdfs1:9000/test2_1', 'TSV', '{table_format}')") assert(result.strip() == "3\t2\t1") result = node1.query(f"select * from hdfs('hdfs://hdfs1:9000/test2_2', 'TSV', '{table_format}')") assert(result.strip() == "1\t3\t2") result = node1.query(f"select * from hdfs('hdfs://hdfs1:9000/test2_3', 'TSV', '{table_format}')") assert(result.strip() == "1\t2\t3") def test_seekable_formats(started_cluster): hdfs_api = started_cluster.hdfs_api table_function = f"hdfs('hdfs://hdfs1:9000/parquet', 'Parquet', 'a Int32, b String')" node1.query(f"insert into table function {table_function} SELECT number, randomString(100) FROM numbers(5000000)") result = node1.query(f"SELECT count() FROM {table_function}") assert(int(result) == 5000000) table_function = f"hdfs('hdfs://hdfs1:9000/orc', 'ORC', 'a Int32, b String')" node1.query(f"insert into table function {table_function} SELECT number, randomString(100) FROM numbers(5000000)") result = node1.query(f"SELECT count() FROM {table_function}") assert(int(result) == 5000000) def test_read_table_with_default(started_cluster): hdfs_api = started_cluster.hdfs_api data = "n\n100\n" hdfs_api.write_data("/simple_table_function", data) assert hdfs_api.read_data("/simple_table_function") == data output = "n\tm\n100\t200\n" assert node1.query( "select * from hdfs('hdfs://hdfs1:9000/simple_table_function', 'TSVWithNames', 'n UInt32, m UInt32 DEFAULT n * 2') FORMAT TSVWithNames") == output def test_schema_inference(started_cluster): node1.query(f"insert into table function hdfs('hdfs://hdfs1:9000/native', 'Native', 'a Int32, b String') SELECT number, randomString(100) FROM numbers(5000000)") result = node1.query(f"desc hdfs('hdfs://hdfs1:9000/native', 'Native')") assert result == "a\tInt32\t\t\t\t\t\nb\tString\t\t\t\t\t\n" result = node1.query(f"select count(*) from hdfs('hdfs://hdfs1:9000/native', 'Native')") assert(int(result) == 5000000) node1.query(f"create table schema_inference engine=HDFS('hdfs://hdfs1:9000/native', 'Native')") result = node1.query(f"desc schema_inference") assert result == "a\tInt32\t\t\t\t\t\nb\tString\t\t\t\t\t\n" result = node1.query(f"select count(*) from schema_inference") assert(int(result) == 5000000) def test_hdfsCluster(started_cluster): hdfs_api = started_cluster.hdfs_api fs = HdfsClient(hosts=started_cluster.hdfs_ip) dir = '/test_hdfsCluster' exists = fs.exists(dir) if exists: fs.delete(dir, recursive=True) fs.mkdirs(dir) hdfs_api.write_data("/test_hdfsCluster/file1", "1\n") hdfs_api.write_data("/test_hdfsCluster/file2", "2\n") hdfs_api.write_data("/test_hdfsCluster/file3", "3\n") actual = node1.query("select id, _file as file_name, _path as file_path from hdfs('hdfs://hdfs1:9000/test_hdfsCluster/file*', 'TSV', 'id UInt32') order by id") expected = "1\tfile1\thdfs://hdfs1:9000/test_hdfsCluster/file1\n2\tfile2\thdfs://hdfs1:9000/test_hdfsCluster/file2\n3\tfile3\thdfs://hdfs1:9000/test_hdfsCluster/file3\n" assert actual == expected actual = node1.query("select id, _file as file_name, _path as file_path from hdfsCluster('test_cluster_two_shards', 'hdfs://hdfs1:9000/test_hdfsCluster/file*', 'TSV', 'id UInt32') order by id") expected = "1\tfile1\thdfs://hdfs1:9000/test_hdfsCluster/file1\n2\tfile2\thdfs://hdfs1:9000/test_hdfsCluster/file2\n3\tfile3\thdfs://hdfs1:9000/test_hdfsCluster/file3\n" assert actual == expected fs.delete(dir, recursive=True) if __name__ == '__main__': cluster.start() input("Cluster created, press any key to destroy...") cluster.shutdown()