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