def test_delete_dir(self):
local = LocalFS(os.path.dirname(os.path.realpath(__file__)))
hdfs_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
local.copy_to_hdfs(hdfs_file.path)
self.assertTrue(hdfs_file.exists(), "Target HDFS dir does not exists")
hdfs_file.delete(recursive=True)
self.assertFalse(hdfs_file.exists(), "Target HDFS dir was not deleted")
def test_delete_dir(self):
local = LocalFS(os.path.dirname(os.path.realpath(__file__)))
hdfs_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
local.copy_to_hdfs(hdfs_file.path)
self.assertTrue(hdfs_file.exists(), "Target HDFS dir does not exists")
hdfs_file.delete(recursive=True)
self.assertFalse(hdfs_file.exists(), "Target HDFS dir was not deleted")
def test_file_size(self):
local = LocalFS(os.path.realpath(__file__))
hdfs_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
local.copy_to_hdfs(hdfs_file.path)
self.assertTrue(hdfs_file.exists(), "Local file was not copied to HDFS")
self.assertEqual(hdfs_file.size(), local.size())
finally:
hdfs_file.delete()
def test_file_size(self):
local = LocalFS(os.path.realpath(__file__))
hdfs_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
local.copy_to_hdfs(hdfs_file.path)
self.assertTrue(hdfs_file.exists(), "Local file was not copied to HDFS")
self.assertEqual(hdfs_file.size(), local.size())
finally:
hdfs_file.delete()
def test_create_directory(self):
new_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
self.assertFalse(new_dir.exists(), "Directory is already exists")
try:
new_dir.create_directory()
self.assertTrue(new_dir.exists(), "Directory was not created")
self.assertTrue(new_dir.is_directory())
finally:
new_dir.delete(recursive=True)
self.assertFalse(new_dir.exists(), "Directory was not removed")
def test_create_directory(self):
new_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
self.assertFalse(new_dir.exists(), "Directory is already exists")
try:
new_dir.create_directory()
self.assertTrue(new_dir.exists(), "Directory was not created")
self.assertTrue(new_dir.is_directory())
finally:
new_dir.delete(recursive=True)
self.assertFalse(new_dir.exists(), "Directory was not removed")
def test_create_file(self):
new_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
self.assertFalse(new_file.exists(), "File is already exists")
try:
new_file.create_file()
self.assertTrue(new_file.exists(), "File was not created")
self.assertFalse(new_file.is_directory(), "New file should not be a folder")
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not removed")
def test_create_file(self):
new_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
self.assertFalse(new_file.exists(), "File is already exists")
try:
new_file.create_file()
self.assertTrue(new_file.exists(), "File was not created")
self.assertFalse(new_file.is_directory(), "New file should not be a folder")
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not removed")
def test_list_files(self):
basedir = HDFS("/tmp")
new_file = HDFS("/tmp/test.txt")
try:
new_file.create(directory=False)
self.assertTrue(new_file.exists(), "File was not created")
files = basedir.list_files()
self.assertTrue(new_file in files)
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not deleted")
def test_dir_size(self):
local_basedir = os.path.dirname(os.path.realpath(__file__))
local = LocalFS(os.path.join(local_basedir, "resources", "test_dir_size"))
hdfs_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
local.copy_to_hdfs(hdfs_file.path)
self.assertTrue(hdfs_file.exists(), "Local file was not copied to HDFS")
expected_fsize = local.size()
self.assertEqual(hdfs_file.size(), expected_fsize)
finally:
hdfs_file.delete(recursive=True)
def test_get_replicas(self):
self.assertEqual("0", HDFS("/").replicas(), "Root dir replicas should be 0")
self.assertNotEqual("0", HDFS("/tmp").replicas(), "dir replicas should be 0")
name = uuid.uuid4()
hdfs_file = HDFS("/tmp/{0}".format(name))
hdfs_file.create_file()
shell.execute_shell_command("hadoop dfs", "-setrep -w 1 /tmp/{0}".format(name))
if hdfs_file.exists():
self.assertEqual("1", hdfs_file.replicas(), "Number replicas of file must be 1")
hdfs_file.delete()
self.assertFalse(hdfs_file.exists())
def test_dir_size(self):
local_basedir = os.path.dirname(os.path.realpath(__file__))
local = LocalFS(os.path.join(local_basedir, "resources", "test_dir_size"))
hdfs_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
local.copy_to_hdfs(hdfs_file.path)
self.assertTrue(hdfs_file.exists(), "Local file was not copied to HDFS")
expected_fsize = local.size()
self.assertEqual(hdfs_file.size(), expected_fsize)
finally:
hdfs_file.delete(recursive=True)
def test_list_files(self):
basedir = HDFS("/tmp")
new_file = HDFS("/tmp/test.txt")
try:
new_file.create(directory=False)
self.assertTrue(new_file.exists(), "File was not created")
files = basedir.list_files()
self.assertTrue(new_file in files)
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not deleted")
def test_get_description(self):
directory = HDFS("/tmp/bar")
try:
directory.create()
self.assertEqual(directory.get_description().name, "/tmp/bar")
self.assertEqual(directory.get_description().size, 0)
self.assertEqual(directory.get_description().owner, getpass.getuser())
self.assertEqual(directory.get_description().create_date, None)
finally:
directory.delete(recursive=True)
self.assertFalse(directory.delete(), "File was not deleted")
def test_get_description(self):
directory = HDFS("/tmp/bar")
try:
directory.create()
self.assertEqual(directory.get_description().name, "/tmp/bar")
self.assertEqual(directory.get_description().size, 0)
self.assertEqual(directory.get_description().owner, getpass.getuser())
self.assertEqual(directory.get_description().create_date, None)
finally:
directory.delete(recursive=True)
self.assertFalse(directory.delete(), "File was not deleted")
def test_get_replicas(self):
self.assertEqual('0', HDFS("/").replicas(), "Root dir replicas should be 0")
self.assertNotEqual('0', HDFS("/tmp").replicas(), "dir replicas should be 0")
name = uuid.uuid4()
hdfs_file = HDFS("/tmp/{0}".format(name))
hdfs_file.create_file()
shell.execute_shell_command('hadoop dfs', '-setrep -w 1 /tmp/{0}'.format(name))
if hdfs_file.exists():
self.assertEqual('1',
hdfs_file.replicas(),
"Number replicas of file must be 1")
hdfs_file.delete()
self.assertFalse(hdfs_file.exists())
def test_copy_to_local(self):
new_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
local_path = os.path.join("/tmp", "copied_from_hdfs")
self.assertFalse(os.path.exists(local_path))
try:
new_file.create_file()
self.assertTrue(new_file.exists(), "File was not created")
new_file.copy_to_local(local_path)
self.assertTrue(os.path.exists(local_path), "File was not copied from HDFS")
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not removed")
os.remove(local_path)
self.assertFalse(os.path.exists(local_path))
def test_copy_empty_dir(self):
_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS("/tmp/dst_" + str(uuid.uuid4()))
try:
_dir.create(directory=True)
self.assertTrue(_dir.exists(), "directory not found")
self.assertFalse(dst.exists(), "dst directory is already exists")
_dir.copy(dst)
self.assertTrue(dst.exists(), "directory was not copied")
finally:
_dir.delete(True)
dst.delete(True)
self.assertFalse(_dir.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "File was not deleted")
def test_copy_to_local(self):
new_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
local_path = os.path.join("/tmp", "copied_from_hdfs")
self.assertFalse(os.path.exists(local_path))
try:
new_file.create_file()
self.assertTrue(new_file.exists(), "File was not created")
new_file.copy_to_local(local_path)
self.assertTrue(os.path.exists(local_path), "File was not copied from HDFS")
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not removed")
os.remove(local_path)
self.assertFalse(os.path.exists(local_path))
def test_get_modification_time(self):
now = datetime.now().strftime("%Y-%m-%d")
_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
_dir.create_directory()
_file.create_file()
self.assertTrue(_dir.exists(), "Dir was not created")
self.assertTrue(_file.exists(), "File was not created")
self.assertEqual(now, _dir.modification_time().strftime("%Y-%m-%d"), "Error: dir modification time")
self.assertEqual(now, _file.modification_time().strftime("%Y-%m-%d"), "Error: File modification time")
finally:
_dir.delete_directory()
_file.delete()
def test_get_modification_time(self):
now = datetime.now().strftime("%Y-%m-%d")
_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
_dir.create_directory()
_file.create_file()
self.assertTrue(_dir.exists(), "Dir was not created")
self.assertTrue(_file.exists(), "File was not created")
self.assertEqual(now, _dir.modification_time().strftime("%Y-%m-%d"), "Error: dir modification time")
self.assertEqual(now, _file.modification_time().strftime("%Y-%m-%d"), "Error: File modification time")
finally:
_dir.delete_directory()
_file.delete()
def test_copy_empty_dir(self):
_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS("/tmp/dst_" + str(uuid.uuid4()))
try:
_dir.create(directory=True)
self.assertTrue(_dir.exists(), "directory not found")
self.assertFalse(dst.exists(), "dst directory is already exists")
_dir.copy(dst)
self.assertTrue(dst.exists(), "directory was not copied")
finally:
_dir.delete(True)
dst.delete(True)
self.assertFalse(_dir.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "File was not deleted")
def test_move_file(self):
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
_file.create_file()
self.assertTrue(_file.exists(), "File was not created")
self.assertFalse(dst.exists(), "Destination file should not exist")
_file.move(dst.path)
self.assertFalse(_file.exists(), "Original file should be deleted")
self.assertTrue(dst.exists(), "Destination file should be created")
finally:
_file.delete()
dst.delete()
self.assertFalse(_file.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "destination file was not deleted")
def test_recursive_list_files(self):
basedir = HDFS("/tmp")
new_folder = HDFS("/tmp/test123")
new_file = HDFS("/tmp/test123/test.txt")
try:
new_folder.create(directory=True)
self.assertTrue(new_folder.exists(), "Folder was not created")
new_file.create(directory=False)
self.assertTrue(new_file.exists(), "File was not created")
files = basedir.recursive_list_files()
self.assertTrue(new_file in files)
self.assertTrue(new_folder in files)
finally:
new_folder.delete(recursive=True)
self.assertFalse(new_file.exists(), "Folder was not deleted")
def test_move_empty_dir(self):
_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS("/tmp/dst_" + str(uuid.uuid4()))
try:
_dir.create(directory=True)
self.assertTrue(_dir.exists(), "directory not found")
self.assertFalse(dst.exists(), "destination directory is already exists")
_dir.move(dst.path)
self.assertFalse(_dir.exists(), "Original directory was not removed")
self.assertTrue(dst.exists(), "destination directory was not created")
finally:
_dir.delete(True)
dst.delete(True)
self.assertFalse(_dir.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "File was not deleted")
def test_move_file(self):
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
_file.create_file()
self.assertTrue(_file.exists(), "File was not created")
self.assertFalse(dst.exists(), "Destination file should not exist")
_file.move(dst.path)
self.assertFalse(_file.exists(), "Original file should be deleted")
self.assertTrue(dst.exists(), "Destination file should be created")
finally:
_file.delete()
dst.delete()
self.assertFalse(_file.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "destination file was not deleted")
def test_recursive_list_files(self):
basedir = HDFS("/tmp")
new_folder = HDFS("/tmp/test123")
new_file = HDFS("/tmp/test123/test.txt")
try:
new_folder.create(directory=True)
self.assertTrue(new_folder.exists(), "Folder was not created")
new_file.create(directory=False)
self.assertTrue(new_file.exists(), "File was not created")
files = basedir.recursive_list_files()
self.assertTrue(new_file in files)
self.assertTrue(new_folder in files)
finally:
new_folder.delete(recursive=True)
self.assertFalse(new_file.exists(), "Folder was not deleted")
def test_move_empty_dir(self):
_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS("/tmp/dst_" + str(uuid.uuid4()))
try:
_dir.create(directory=True)
self.assertTrue(_dir.exists(), "directory not found")
self.assertFalse(dst.exists(), "destination directory is already exists")
_dir.move(dst.path)
self.assertFalse(_dir.exists(), "Original directory was not removed")
self.assertTrue(dst.exists(), "destination directory was not created")
finally:
_dir.delete(True)
dst.delete(True)
self.assertFalse(_dir.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "File was not deleted")
def test_copy_file(self):
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
_file.create_file()
self.assertTrue(_file.exists(), "original file not found")
self.assertFalse(dst.exists(), "destination file already exists")
_file.create()
_file.copy(dst)
self.assertTrue(dst.exists(), "file was not copied")
self.assertTrue(_file.exists(), "original file should not be deleted")
finally:
_file.delete()
dst.delete()
self.assertFalse(_file.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "destination file was not deleted")
def test_copy_file(self):
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
dst = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
try:
_file.create_file()
self.assertTrue(_file.exists(), "original file not found")
self.assertFalse(dst.exists(), "destination file already exists")
_file.create()
_file.copy(dst)
self.assertTrue(dst.exists(), "file was not copied")
self.assertTrue(_file.exists(), "original file should not be deleted")
finally:
_file.delete()
dst.delete()
self.assertFalse(_file.exists(), "File was not deleted")
self.assertFalse(dst.exists(), "destination file was not deleted")
def test_distcp(self):
directory = HDFS("/tmp/bar")
directory.create()
new_file = HDFS("/tmp/test_dist.txt")
new_file.create(directory=False)
_host = "sandbox.hortonworks.com"
try:
self.assertTrue(new_file.exists(), "File was not created")
_file = HDFS("hdfs://{host}:8020/tmp/test_dist.txt".format(host=_host))
_file.distcp(dest="hdfs://{host}:8020/tmp/bar/test_dist.txt".format(host=_host))
file_after_copy = HDFS("/tmp/bar/test_dist.txt")
self.assertTrue(file_after_copy.exists(), "File was not copied")
finally:
new_file.delete()
directory.delete(recursive=True)
self.assertFalse(new_file.exists(), "File was not deleted")
self.assertFalse(directory.delete(), "File was not deleted")
def test_distcp(self):
directory = HDFS("/tmp/bar")
directory.create()
new_file = HDFS("/tmp/test_dist.txt")
new_file.create(directory=False)
_host = "sandbox.hortonworks.com"
try:
self.assertTrue(new_file.exists(), "File was not created")
_file = HDFS("hdfs://{host}:8020/tmp/test_dist.txt".format(host=_host))
_file.distcp(dest="hdfs://{host}:8020/tmp/bar/test_dist.txt".format(host=_host))
file_after_copy = HDFS("/tmp/bar/test_dist.txt")
self.assertTrue(file_after_copy.exists(), "File was not copied")
finally:
new_file.delete()
directory.delete(recursive=True)
self.assertFalse(new_file.exists(), "File was not deleted")
self.assertFalse(directory.delete(), "File was not deleted")
def test_create(self):
new_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
new_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
# tets new file creation
try:
new_file.create(directory=False)
self.assertTrue(new_file.exists(), "File was not created")
self.assertFalse(new_file.is_directory(), "New file should not be a directory")
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not removed")
# test new folder creation
try:
new_dir.create(directory=True)
self.assertTrue(new_dir.exists(), "Directory was not created")
self.assertTrue(new_dir.is_directory(), "New file should be a directory")
finally:
new_dir.delete(recursive=True)
self.assertFalse(new_dir.exists(), "Directory was not removed")
def test_create(self):
new_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
new_dir = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
# tets new file creation
try:
new_file.create(directory=False)
self.assertTrue(new_file.exists(), "File was not created")
self.assertFalse(new_file.is_directory(), "New file should not be a directory")
finally:
new_file.delete()
self.assertFalse(new_file.exists(), "File was not removed")
# test new folder creation
try:
new_dir.create(directory=True)
self.assertTrue(new_dir.exists(), "Directory was not created")
self.assertTrue(new_dir.is_directory(), "New file should be a directory")
finally:
new_dir.delete(recursive=True)
self.assertFalse(new_dir.exists(), "Directory was not removed")
def test_import_to_hive(self):
_path = HDFS(os.path.join('/user', getpass.getuser(), 'table_name'))
try:
if _path.exists():
_path.delete(recursive=_path.is_directory())
# shell.execute_shell_command('hadoop fs', '-rm -r /user/', getpass.getuser(), '/table_name')
cmd = Sqoop.import_data().from_rdbms(
host=MYSQL_SERVER,
rdbms="mysql",
username="******",
password_file="{0}/rdbms.password".format(BASE_DIR),
database="sqoop_tests").table(
table="table_name").to_hive().run()
# self.assertEquals(cmd.status, 0, cmd.stderr)
# result = shell.execute_shell_command('hadoop fs', '-du -s /user/hive/warehouse/table_name/part-m-*')
# self.assertNotEqual(result.stdout.split(' ')[0], '0', result.stdout)
finally:
shell.execute_shell_command(
'hive', "-e 'DROP TABLE IF EXISTS table_name'")
def test_import_to_hive(self):
_path = HDFS(os.path.join('/user', getpass.getuser(), 'table_name'))
try:
if _path.exists():
_path.delete(recursive=_path.is_directory())
# shell.execute_shell_command('hadoop fs', '-rm -r /user/', getpass.getuser(), '/table_name')
cmd = Sqoop.import_data().from_rdbms(
host=MYSQL_SERVER,
rdbms="mysql",
username="******",
password_file="{0}/rdbms.password".format(BASE_DIR),
database="sqoop_tests"
).table(
table="table_name"
).to_hive().run()
# self.assertEquals(cmd.status, 0, cmd.stderr)
# result = shell.execute_shell_command('hadoop fs', '-du -s /user/hive/warehouse/table_name/part-m-*')
# self.assertNotEqual(result.stdout.split(' ')[0], '0', result.stdout)
finally:
shell.execute_shell_command('hive', "-e 'DROP TABLE IF EXISTS table_name'")
def clean_resources():
"""
Cleans resources from previously flow.
"""
hdfs_file = HDFS("{0}/data_to_export".format(BASE_DIR))
if hdfs_file.exists():
hdfs_file.delete(recursive=True)
hdfs_file = HDFS("{0}/data_from_import".format(BASE_DIR))
if hdfs_file.exists():
hdfs_file.delete(recursive=True)
hdfs_file = HDFS("{0}/rdbms.password".format(BASE_DIR))
if hdfs_file.exists():
hdfs_file.delete()
#
from merlin.tools.hive import Hive
from ConfigParser import RawConfigParser
from merlin.fs.localfs import LocalFS
from merlin.fs.hdfs import HDFS
from merlin.fs.ftp import ftp_client
import os
BASE_DIR = "/tmp"
if __name__ == "__main__":
hdfs_file = HDFS("{0}/raw".format(BASE_DIR))
if hdfs_file.exists():
hdfs_file.delete(recursive=True)
config = RawConfigParser()
config.read(os.path.join(os.path.dirname(__file__), "resources/ftp_config.ini"))
host_download = config.get("ftp", "host.download")
user_name = config.get("ftp", "user.name")
password = config.get("ftp", "password")
path = config.get("ftp", "path")
ftp = ftp_client(host=host_download,
login=user_name,
password=password,
path="/tmp")
if ftp.exists():
ftp.delete(recursive=True)
def on_flow_failed(context):
hdfs_file = HDFS("{0}/raw".format(BASE_DIR))
if hdfs_file.exists():
hdfs_file.delete(recursive=True)
def test_delete_file(self):
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
_file.create_file()
self.assertTrue(_file.exists(), "Target file can not be found")
_file.delete()
self.assertFalse(_file.exists(), "Target file was not deleted")
def on_flow_failed(context):
hdfs_file = HDFS("{0}/raw".format(BASE_DIR))
if hdfs_file.exists():
hdfs_file.delete(recursive=True)
def test_delete_file(self):
_file = HDFS(os.path.join("/tmp", str(uuid.uuid4())))
_file.create_file()
self.assertTrue(_file.exists(), "Target file can not be found")
_file.delete()
self.assertFalse(_file.exists(), "Target file was not deleted")
