Files
impala/tests/query_test/test_insert_behaviour.py
Casey Ching 074e5b4349 Remove hashbang from non-script python files
Many python files had a hashbang and the executable bit set though
they were not intended to be run a standalone script. That makes
determining which python files are actually scripts very difficult.
A future patch will update the hashbang in real python scripts so they
use $IMPALA_HOME/bin/impala-python.

Change-Id: I04eafdc73201feefe65b85817a00474e182ec2ba
Reviewed-on: http://gerrit.cloudera.org:8080/599
Reviewed-by: Casey Ching <casey@cloudera.com>
Reviewed-by: Taras Bobrovytsky <tbobrovytsky@cloudera.com>
Tested-by: Internal Jenkins
2015-08-04 05:26:07 +00:00

462 lines
22 KiB
Python

# Copyright (c) 2012 Cloudera, Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import getpass
import grp
import os
import pwd
import pytest
import time
from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.skip import SkipIfS3, SkipIfIsilon
from tests.util.filesystem_utils import WAREHOUSE, IS_DEFAULT_FS, get_fs_path
@SkipIfS3.insert
class TestInsertBehaviour(ImpalaTestSuite):
"""Tests for INSERT behaviour that isn't covered by checking query results"""
TEST_DB_NAME = "insert_empty_result_db"
def setup_method(self, method):
# cleanup and create a fresh test database
if method.__name__ == "test_insert_select_with_empty_resultset":
self.cleanup_db(self.TEST_DB_NAME)
self.execute_query("create database if not exists {0} location '{1}/{0}.db'"
.format(self.TEST_DB_NAME, WAREHOUSE))
def teardown_method(self, method):
if method.__name__ == "test_insert_select_with_empty_resultset":
self.cleanup_db(self.TEST_DB_NAME)
@pytest.mark.execute_serially
def test_insert_removes_staging_files(self):
TBL_NAME = "insert_overwrite_nopart"
insert_staging_dir = ("test-warehouse/functional.db/%s/"
"_impala_insert_staging" % TBL_NAME)
self.hdfs_client.delete_file_dir(insert_staging_dir, recursive=True)
self.client.execute(("INSERT OVERWRITE functional.%s"
" SELECT int_col FROM functional.tinyinttable" % TBL_NAME))
ls = self.hdfs_client.list_dir(insert_staging_dir)
assert len(ls['FileStatuses']['FileStatus']) == 0
@pytest.mark.execute_serially
def test_insert_preserves_hidden_files(self):
"""Test that INSERT OVERWRITE preserves hidden files in the root table directory"""
TBL_NAME = "insert_overwrite_nopart"
table_dir = "test-warehouse/functional.db/%s/" % TBL_NAME
hidden_file_locations = [".hidden", "_hidden"]
dir_locations = ["dir", ".hidden_dir"]
for dir_ in dir_locations:
self.hdfs_client.make_dir(table_dir + dir_)
for file_ in hidden_file_locations:
self.hdfs_client.create_file(table_dir + file_, '', overwrite=True)
self.client.execute(("INSERT OVERWRITE functional.%s"
" SELECT int_col FROM functional.tinyinttable" % TBL_NAME))
for file_ in hidden_file_locations:
try:
self.hdfs_client.get_file_dir_status(table_dir + file_)
except:
err_msg = "Hidden file '%s' was unexpectedly deleted by INSERT OVERWRITE"
pytest.fail(err_msg % (table_dir + file_))
for dir_ in dir_locations:
try:
self.hdfs_client.get_file_dir_status(table_dir + file_)
except:
err_msg = "Directory '%s' was unexpectedly deleted by INSERT OVERWRITE"
pytest.fail(err_msg % (table_dir + dir_))
@pytest.mark.execute_serially
def test_insert_alter_partition_location(self):
"""Test that inserts after changing the location of a partition work correctly,
including the creation of a non-existant partition dir"""
PART_DIR = "tmp/test_insert_alter_partition_location"
QUALIFIED_PART_DIR = get_fs_path('/' + PART_DIR)
TBL_NAME = "functional.insert_alter_partition_location"
self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS %s" % TBL_NAME)
self.hdfs_client.delete_file_dir(PART_DIR, recursive=True)
self.execute_query_expect_success(self.client,
"CREATE TABLE %s (c int) PARTITIONED BY (p int)" % TBL_NAME)
self.execute_query_expect_success(self.client,
"ALTER TABLE %s ADD PARTITION(p=1)" % TBL_NAME)
self.execute_query_expect_success(self.client,
"ALTER TABLE %s PARTITION(p=1) SET LOCATION '%s'" %
(TBL_NAME, QUALIFIED_PART_DIR))
self.execute_query_expect_success(self.client,
"INSERT OVERWRITE %s PARTITION(p=1) VALUES(1)" % TBL_NAME)
result = self.execute_query_expect_success(self.client,
"SELECT COUNT(*) FROM %s" % TBL_NAME)
assert int(result.get_data()) == 1
# Should have created the partition dir, which should contain exactly one file (not in
# a subdirectory)
ls = self.hdfs_client.list_dir(PART_DIR)
assert len(ls['FileStatuses']['FileStatus']) == 1
@SkipIfIsilon.hdfs_acls
@pytest.mark.xfail(run=False, reason="Fails intermittently on test clusters")
@pytest.mark.execute_serially
def test_insert_inherit_acls(self):
"""Check that ACLs are inherited when we create new partitions"""
ROOT_ACL = "default:group:dummy_group:rwx"
TEST_ACL = "default:group:impala_test_users:r-x"
def check_has_acls(part, acl=TEST_ACL):
path = "test-warehouse/functional.db/insert_inherit_acls/" + part
result = self.hdfs_client.getacl(path)
assert acl in result['AclStatus']['entries']
# Add a spurious ACL to functional.db directory
self.hdfs_client.setacl("test-warehouse/functional.db", ROOT_ACL)
self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
" functional.insert_inherit_acls")
self.execute_query_expect_success(self.client, "CREATE TABLE "
"functional.insert_inherit_acls (col int)"
" PARTITIONED BY (p1 int, p2 int, p3 int)")
# Check that table creation inherited the ACL
check_has_acls("", ROOT_ACL)
self.execute_query_expect_success(self.client, "ALTER TABLE "
"functional.insert_inherit_acls ADD PARTITION"
"(p1=1, p2=1, p3=1)")
check_has_acls("p1=1", ROOT_ACL)
check_has_acls("p1=1/p2=1", ROOT_ACL)
check_has_acls("p1=1/p2=1/p3=1", ROOT_ACL)
self.hdfs_client.setacl(
"test-warehouse/functional.db/insert_inherit_acls/p1=1/", TEST_ACL)
self.execute_query_expect_success(self.client, "INSERT INTO "
"functional.insert_inherit_acls "
"PARTITION(p1=1, p2=2, p3=2) VALUES(1)")
check_has_acls("p1=1/p2=2/")
check_has_acls("p1=1/p2=2/p3=2")
# Check that SETACL didn't cascade down to children (which is more to do with HDFS
# than Impala, but worth asserting here)
check_has_acls("p1=1/p2=1", ROOT_ACL)
check_has_acls("p1=1/p2=1/p3=1", ROOT_ACL)
# Change ACLs on p1=1,p2=2 and create a new leaf at p3=30
self.hdfs_client.setacl(
"test-warehouse/functional.db/insert_inherit_acls/p1=1/p2=2/",
"default:group:new_leaf_group:-w-")
self.execute_query_expect_success(self.client, "INSERT INTO "
"functional.insert_inherit_acls "
"PARTITION(p1=1, p2=2, p3=30) VALUES(1)")
check_has_acls("p1=1/p2=2/p3=30", "default:group:new_leaf_group:-w-")
@SkipIfIsilon.hdfs_acls
def test_insert_file_permissions(self):
"""Test that INSERT correctly respects file permission (minimum ACLs)"""
TBL = "functional.insert_acl_permissions"
TBL_PATH = "test-warehouse/functional.db/insert_acl_permissions"
INSERT_QUERY = "INSERT INTO %s VALUES(1)" % TBL
self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
" functional.insert_acl_permissions")
self.execute_query_expect_success(self.client, "CREATE TABLE "
"functional.insert_acl_permissions (col int) ")
# Check that a simple insert works
self.execute_query_expect_success(self.client, INSERT_QUERY)
# Remove the permission to write and confirm that INSERTs won't work
self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::r-x,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Now add group access, still should fail (because the user will match and take
# priority)
self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::rwx,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Now make the target directory non-writable with posix permissions, but writable with
# ACLs (ACLs should take priority). Note: chmod affects ACLs (!) so it has to be done
# first.
self.hdfs_client.chmod(TBL_PATH, "000")
self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::r-x,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
self.execute_query_expect_success(self.client, INSERT_QUERY)
# Finally, change the owner
self.hdfs_client.chown(TBL_PATH, "another_user", "another_group")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
# Should be unwritable because 'other' ACLs don't allow writes
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Give write perms back to 'other'
self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::r-x,other::rwx")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
# Should be writable because 'other' ACLs allow writes
self.execute_query_expect_success(self.client, INSERT_QUERY)
@SkipIfIsilon.hdfs_acls
def test_insert_acl_permissions(self):
"""Test that INSERT correctly respects ACLs"""
TBL = "functional.insert_acl_permissions"
TBL_PATH = "test-warehouse/functional.db/insert_acl_permissions"
INSERT_QUERY = "INSERT INTO %s VALUES(1)" % TBL
self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
" functional.insert_acl_permissions")
self.execute_query_expect_success(self.client, "CREATE TABLE "
"functional.insert_acl_permissions (col int) ")
# Check that a simple insert works
self.execute_query_expect_success(self.client, INSERT_QUERY)
USER = getpass.getuser()
GROUP = grp.getgrgid(pwd.getpwnam(USER).pw_gid).gr_name
# First, change the owner to someone other than user who runs impala service
self.hdfs_client.chown(TBL_PATH, "another_user", GROUP)
# Remove the permission to write and confirm that INSERTs won't work
self.hdfs_client.setacl(TBL_PATH,
"user::r-x,user:" + USER + ":r-x,group::r-x,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Add the permission to write. if we're not the owner of the file, INSERTs should work
self.hdfs_client.setacl(TBL_PATH,
"user::r-x,user:" + USER + ":rwx,group::r-x,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
self.execute_query_expect_success(self.client, INSERT_QUERY)
# Now add group access, still should fail (because the user will match and take
# priority)
self.hdfs_client.setacl(TBL_PATH,
"user::r-x,user:" + USER + ":r-x,group::rwx,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Check that the mask correctly applies to the anonymous group ACL
self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::rwx,other::rwx,mask::r--")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
# Should be unwritable because mask applies to unnamed group and disables writing
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Check that the mask correctly applies to the named user ACL
self.hdfs_client.setacl(TBL_PATH, "user::r-x,user:" + USER +
":rwx,group::r-x,other::rwx,mask::r--")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
# Should be unwritable because mask applies to named user and disables writing
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Now make the target directory non-writable with posix permissions, but writable with
# ACLs (ACLs should take priority). Note: chmod affects ACLs (!) so it has to be done
# first.
self.hdfs_client.chmod(TBL_PATH, "000")
self.hdfs_client.setacl(TBL_PATH, "user::rwx,user:foo:rwx,group::rwx,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
self.execute_query_expect_success(self.client, INSERT_QUERY)
# Finally, change the owner/group
self.hdfs_client.chown(TBL_PATH, "test_user", "invalid")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
# Should be unwritable because 'other' ACLs don't allow writes
self.execute_query_expect_failure(self.client, INSERT_QUERY)
# Give write perms back to 'other'
self.hdfs_client.setacl(TBL_PATH, "user::r-x,user:foo:rwx,group::r-x,other::rwx")
self.execute_query_expect_success(self.client,
"REFRESH functional.insert_acl_permissions")
# Should be writable because 'other' ACLs allow writes
self.execute_query_expect_success(self.client, INSERT_QUERY)
@SkipIfIsilon.hdfs_acls
def test_load_permissions(self):
# We rely on test_insert_acl_permissions() to exhaustively check that ACL semantics
# are correct. Here we just validate that LOADs can't be done when we cannot read from
# or write to the src directory, or write to the dest directory.
TBL = "functional.load_acl_permissions"
TBL_PATH = "test-warehouse/functional.db/load_acl_permissions"
FILE_PATH = "tmp/impala_load_test"
FILE_NAME = "%s/impala_data_file" % FILE_PATH
LOAD_FILE_QUERY = "LOAD DATA INPATH '/%s' INTO TABLE %s" % (FILE_NAME, TBL)
LOAD_DIR_QUERY = "LOAD DATA INPATH '/%s' INTO TABLE %s" % (FILE_PATH, TBL)
self.hdfs_client.make_dir(FILE_PATH)
self.hdfs_client.setacl(FILE_PATH, "user::rwx,group::rwx,other::---")
self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
" functional.load_acl_permissions")
self.execute_query_expect_success(self.client, "CREATE TABLE "
"functional.load_acl_permissions (col int)")
self.hdfs_client.delete_file_dir(FILE_NAME)
self.hdfs_client.create_file(FILE_NAME, "1")
self.execute_query_expect_success(self.client, LOAD_FILE_QUERY)
# Now remove write perms from the source directory
self.hdfs_client.create_file(FILE_NAME, "1")
self.hdfs_client.setacl(FILE_PATH, "user::---,group::---,other::---")
self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::r-x,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.load_acl_permissions")
self.execute_query_expect_failure(self.client, LOAD_FILE_QUERY)
self.execute_query_expect_failure(self.client, LOAD_DIR_QUERY)
# Remove write perms from target
self.hdfs_client.setacl(FILE_PATH, "user::rwx,group::rwx,other::rwx")
self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::r-x,other::r-x")
self.execute_query_expect_success(self.client,
"REFRESH functional.load_acl_permissions")
self.execute_query_expect_failure(self.client, LOAD_FILE_QUERY)
self.execute_query_expect_failure(self.client, LOAD_DIR_QUERY)
# Finally remove read perms from file itself
self.hdfs_client.setacl(FILE_NAME, "user::-wx,group::rwx,other::rwx")
self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::rwx,other::rwx")
self.execute_query_expect_success(self.client,
"REFRESH functional.load_acl_permissions")
self.execute_query_expect_failure(self.client, LOAD_FILE_QUERY)
# We expect this to succeed, it's not an error if all files in the dir cannot be read
self.execute_query_expect_success(self.client, LOAD_DIR_QUERY)
@pytest.mark.execute_serially
def test_insert_select_with_empty_resultset(self):
"""Test insert/select query won't trigger partition directory or zero size data file
creation if the resultset of select is empty."""
def check_path_exists(path, should_exist):
fail = None
try:
self.hdfs_client.get_file_dir_status(path)
if not should_exist:
pytest.fail("file/dir '%s' unexpectedly exists" % path)
except Exception, e:
if should_exist:
pytest.fail("file/dir '%s' does not exist" % path)
db_path = "test-warehouse/%s.db/" % self.TEST_DB_NAME
table_path = db_path + "test_insert_empty_result"
partition_path = "{0}/year=2009/month=1".format(table_path)
check_path_exists(table_path, False)
table_name = self.TEST_DB_NAME + ".test_insert_empty_result"
self.execute_query_expect_success(self.client, ("CREATE TABLE %s (id INT, col INT)"
" PARTITIONED BY (year INT, month INT)" % table_name))
check_path_exists(table_path, True)
check_path_exists(partition_path, False)
# Run an insert/select stmt that returns an empty resultset.
insert_query = ("INSERT INTO TABLE {0} PARTITION(year=2009, month=1)"
"select 1, 1 from {0} LIMIT 0".format(table_name))
self.execute_query_expect_success(self.client, insert_query)
# Partition directory should not be created
check_path_exists(partition_path, False)
# Insert one record
insert_query_one_row = ("INSERT INTO TABLE %s PARTITION(year=2009, month=1) "
"values(2, 2)" % table_name)
self.execute_query_expect_success(self.client, insert_query_one_row)
# Partition directory should be created with one data file
check_path_exists(partition_path, True)
ls = self.hdfs_client.list_dir(partition_path)
assert len(ls['FileStatuses']['FileStatus']) == 1
# Run an insert/select statement that returns an empty resultset again
self.execute_query_expect_success(self.client, insert_query)
# No new data file should be created
new_ls = self.hdfs_client.list_dir(partition_path)
assert len(new_ls['FileStatuses']['FileStatus']) == 1
assert new_ls['FileStatuses'] == ls['FileStatuses']
# Run an insert overwrite/select that returns an empty resultset
insert_query = ("INSERT OVERWRITE {0} PARTITION(year=2009, month=1)"
" select 1, 1 from {0} LIMIT 0".format(table_name))
self.execute_query_expect_success(self.client, insert_query)
# Data file should be deleted
new_ls2 = self.hdfs_client.list_dir(partition_path)
assert len(new_ls2['FileStatuses']['FileStatus']) == 0
assert new_ls['FileStatuses'] != new_ls2['FileStatuses']
# Test for IMPALA-2008 insert overwrite to an empty table with empty dataset
empty_target_tbl = "test_overwrite_with_empty_target"
create_table = "create table %s.%s (id INT, col INT)" % (self.TEST_DB_NAME,
empty_target_tbl)
self.execute_query_expect_success(self.client, create_table)
insert_query = ("INSERT OVERWRITE {0}.{1} select 1, 1 from {0}.{1} LIMIT 0"
.format(self.TEST_DB_NAME, empty_target_tbl))
self.execute_query_expect_success(self.client, insert_query)
# Delete target table directory, query should fail with
# "No such file or directory" error
target_table_path = "%s%s" % (db_path, empty_target_tbl)
self.hdfs_client.delete_file_dir(target_table_path, recursive=True)
self.execute_query_expect_failure(self.client, insert_query)
@SkipIfIsilon.hdfs_acls
def test_multiple_group_acls(self):
"""Test that INSERT correctly respects multiple group ACLs"""
TBL = "functional.insert_group_acl_permissions"
TBL_PATH = "test-warehouse/functional.db/insert_group_acl_permissions"
INSERT_QUERY = "INSERT INTO %s VALUES(1)" % TBL
self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS " + TBL)
self.execute_query_expect_success(self.client, "CREATE TABLE %s (col int)" % TBL)
USER = getpass.getuser()
TEST_USER = "test_user"
# Get the list of all groups of USER except the user's owning group.
OWNINGROUP = grp.getgrgid(pwd.getpwnam(USER).pw_gid).gr_name
GROUPS = [g.gr_name for g in grp.getgrall() if USER in g.gr_mem]
if (len(GROUPS) < 1):
pytest.xfail(reason="Cannot run test, user belongs to only one group.")
# First, change the owner to someone other than user who runs impala service
self.hdfs_client.chown(TBL_PATH, "another_user", OWNINGROUP)
# Set two group ACLs, one contains requested permission, the other doesn't.
self.hdfs_client.setacl(TBL_PATH,
"user::r-x,user:{0}:r-x,group::---,group:{1}:rwx,other::r-x"
.format(TEST_USER, GROUPS[0]))
self.execute_query_expect_success(self.client, "REFRESH " + TBL)
self.execute_query_expect_success(self.client, INSERT_QUERY)
# Two group ACLs but with mask to deny the permission.
self.hdfs_client.setacl(TBL_PATH,
"user::r-x,group::r--,group:{0}:rwx,mask::r-x,other::---".format(GROUPS[0]))
self.execute_query_expect_success(self.client, "REFRESH " + TBL)
self.execute_query_expect_failure(self.client, INSERT_QUERY)