ClickHouse/tests/integration/test_storage_hdfs/test.py

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import os
import pytest
from helpers.cluster import ClickHouseCluster
from helpers.hdfs_api import HDFSApi
SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1', with_hdfs=True, main_configs=['configs/log_conf.xml'])
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
except Exception as ex:
print(ex)
raise ex
finally:
cluster.shutdown()
def test_read_write_storage(started_cluster):
hdfs_api = HDFSApi("root")
node1.query(
"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)")
assert hdfs_api.read_data("/simple_storage") == "1\tMark\t72.53\n"
assert node1.query("select * from SimpleHDFSStorage") == "1\tMark\t72.53\n"
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def test_read_write_storage_with_globs(started_cluster):
hdfs_api = HDFSApi("root")
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')")
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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:
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print(ex)
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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:
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print(ex)
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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:
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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):
hdfs_api = HDFSApi("root")
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 = HDFSApi("root")
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
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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')")
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except Exception as ex:
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print(ex)
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assert "Illegal HDFS URI" in str(ex)
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try:
node1.query(
"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:
node1.query(
"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)
def test_globs_in_read_table(started_cluster):
hdfs_api = HDFSApi("root")
some_data = "1\tSerialize\t555.222\n2\tData\t777.333\n"
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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"]
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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'"
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 = HDFSApi("root")
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 = HDFSApi("root")
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 = HDFSApi("root")
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 = HDFSApi("root")
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 = HDFSApi("root")
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 = HDFSApi("root")
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"