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dbc78aaa2c
This patch introduces changes to run tests against Isilon, combined with minor cleanup of the test and client code. For Isilon, it: - Populates the SkipIfIsilon class with appropriate pytest markers. - Introduces a new default for the hdfs client in order to connect to Isilon. - Cleans up a few test files take the underlying filesystem into account. - Cleans up the interface for metadata/test_insert_behaviour, query_test/test_ddl On the client side, we introduce a wrapper around a few pywebhdfs's methods, specifically: - delete_file_dir does not throw an error if the file does not exist. - get_file_dir_status automatically strips the leading '/' Change-Id: Ic630886e253e43b2daaf5adc8dedc0a271b0391f Reviewed-on: http://gerrit.cloudera.org:8080/370 Reviewed-by: Ishaan Joshi <ishaan@cloudera.com> Tested-by: Internal Jenkins
463 lines
22 KiB
Python
Executable File
463 lines
22 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (c) 2012 Cloudera, Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import getpass
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import grp
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import os
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import pwd
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import pytest
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import time
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from tests.common.impala_test_suite import ImpalaTestSuite
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from tests.common.skip import SkipIfS3, SkipIfIsilon
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from tests.util.filesystem_utils import WAREHOUSE, IS_DEFAULT_FS, get_fs_path
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@SkipIfS3.insert
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class TestInsertBehaviour(ImpalaTestSuite):
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"""Tests for INSERT behaviour that isn't covered by checking query results"""
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TEST_DB_NAME = "insert_empty_result_db"
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def setup_method(self, method):
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# cleanup and create a fresh test database
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if method.__name__ == "test_insert_select_with_empty_resultset":
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self.cleanup_db(self.TEST_DB_NAME)
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self.execute_query("create database if not exists {0} location '{1}/{0}.db'"
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.format(self.TEST_DB_NAME, WAREHOUSE))
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def teardown_method(self, method):
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if method.__name__ == "test_insert_select_with_empty_resultset":
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self.cleanup_db(self.TEST_DB_NAME)
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@pytest.mark.execute_serially
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def test_insert_removes_staging_files(self):
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TBL_NAME = "insert_overwrite_nopart"
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insert_staging_dir = ("test-warehouse/functional.db/%s/"
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"_impala_insert_staging" % TBL_NAME)
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self.hdfs_client.delete_file_dir(insert_staging_dir, recursive=True)
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self.client.execute(("INSERT OVERWRITE functional.%s"
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" SELECT int_col FROM functional.tinyinttable" % TBL_NAME))
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ls = self.hdfs_client.list_dir(insert_staging_dir)
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assert len(ls['FileStatuses']['FileStatus']) == 0
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@pytest.mark.execute_serially
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def test_insert_preserves_hidden_files(self):
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"""Test that INSERT OVERWRITE preserves hidden files in the root table directory"""
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TBL_NAME = "insert_overwrite_nopart"
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table_dir = "test-warehouse/functional.db/%s/" % TBL_NAME
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hidden_file_locations = [".hidden", "_hidden"]
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dir_locations = ["dir", ".hidden_dir"]
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for dir_ in dir_locations:
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self.hdfs_client.make_dir(table_dir + dir_)
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for file_ in hidden_file_locations:
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self.hdfs_client.create_file(table_dir + file_, '', overwrite=True)
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self.client.execute(("INSERT OVERWRITE functional.%s"
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" SELECT int_col FROM functional.tinyinttable" % TBL_NAME))
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for file_ in hidden_file_locations:
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try:
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self.hdfs_client.get_file_dir_status(table_dir + file_)
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except:
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err_msg = "Hidden file '%s' was unexpectedly deleted by INSERT OVERWRITE"
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pytest.fail(err_msg % (table_dir + file_))
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for dir_ in dir_locations:
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try:
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self.hdfs_client.get_file_dir_status(table_dir + file_)
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except:
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err_msg = "Directory '%s' was unexpectedly deleted by INSERT OVERWRITE"
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pytest.fail(err_msg % (table_dir + dir_))
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@pytest.mark.execute_serially
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def test_insert_alter_partition_location(self):
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"""Test that inserts after changing the location of a partition work correctly,
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including the creation of a non-existant partition dir"""
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PART_DIR = "tmp/test_insert_alter_partition_location"
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QUALIFIED_PART_DIR = get_fs_path('/' + PART_DIR)
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TBL_NAME = "functional.insert_alter_partition_location"
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self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS %s" % TBL_NAME)
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self.hdfs_client.delete_file_dir(PART_DIR, recursive=True)
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self.execute_query_expect_success(self.client,
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"CREATE TABLE %s (c int) PARTITIONED BY (p int)" % TBL_NAME)
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self.execute_query_expect_success(self.client,
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"ALTER TABLE %s ADD PARTITION(p=1)" % TBL_NAME)
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self.execute_query_expect_success(self.client,
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"ALTER TABLE %s PARTITION(p=1) SET LOCATION '%s'" %
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(TBL_NAME, QUALIFIED_PART_DIR))
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self.execute_query_expect_success(self.client,
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"INSERT OVERWRITE %s PARTITION(p=1) VALUES(1)" % TBL_NAME)
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result = self.execute_query_expect_success(self.client,
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"SELECT COUNT(*) FROM %s" % TBL_NAME)
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assert int(result.get_data()) == 1
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# Should have created the partition dir, which should contain exactly one file (not in
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# a subdirectory)
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ls = self.hdfs_client.list_dir(PART_DIR)
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assert len(ls['FileStatuses']['FileStatus']) == 1
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@SkipIfIsilon.hdfs_acls
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@pytest.mark.xfail(run=False, reason="Fails intermittently on test clusters")
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@pytest.mark.execute_serially
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def test_insert_inherit_acls(self):
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"""Check that ACLs are inherited when we create new partitions"""
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ROOT_ACL = "default:group:dummy_group:rwx"
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TEST_ACL = "default:group:impala_test_users:r-x"
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def check_has_acls(part, acl=TEST_ACL):
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path = "test-warehouse/functional.db/insert_inherit_acls/" + part
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result = self.hdfs_client.getacl(path)
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assert acl in result['AclStatus']['entries']
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# Add a spurious ACL to functional.db directory
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self.hdfs_client.setacl("test-warehouse/functional.db", ROOT_ACL)
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self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
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" functional.insert_inherit_acls")
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self.execute_query_expect_success(self.client, "CREATE TABLE "
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"functional.insert_inherit_acls (col int)"
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" PARTITIONED BY (p1 int, p2 int, p3 int)")
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# Check that table creation inherited the ACL
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check_has_acls("", ROOT_ACL)
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self.execute_query_expect_success(self.client, "ALTER TABLE "
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"functional.insert_inherit_acls ADD PARTITION"
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"(p1=1, p2=1, p3=1)")
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check_has_acls("p1=1", ROOT_ACL)
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check_has_acls("p1=1/p2=1", ROOT_ACL)
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check_has_acls("p1=1/p2=1/p3=1", ROOT_ACL)
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self.hdfs_client.setacl(
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"test-warehouse/functional.db/insert_inherit_acls/p1=1/", TEST_ACL)
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self.execute_query_expect_success(self.client, "INSERT INTO "
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"functional.insert_inherit_acls "
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"PARTITION(p1=1, p2=2, p3=2) VALUES(1)")
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check_has_acls("p1=1/p2=2/")
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check_has_acls("p1=1/p2=2/p3=2")
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# Check that SETACL didn't cascade down to children (which is more to do with HDFS
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# than Impala, but worth asserting here)
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check_has_acls("p1=1/p2=1", ROOT_ACL)
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check_has_acls("p1=1/p2=1/p3=1", ROOT_ACL)
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# Change ACLs on p1=1,p2=2 and create a new leaf at p3=30
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self.hdfs_client.setacl(
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"test-warehouse/functional.db/insert_inherit_acls/p1=1/p2=2/",
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"default:group:new_leaf_group:-w-")
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self.execute_query_expect_success(self.client, "INSERT INTO "
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"functional.insert_inherit_acls "
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"PARTITION(p1=1, p2=2, p3=30) VALUES(1)")
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check_has_acls("p1=1/p2=2/p3=30", "default:group:new_leaf_group:-w-")
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@SkipIfIsilon.hdfs_acls
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def test_insert_file_permissions(self):
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"""Test that INSERT correctly respects file permission (minimum ACLs)"""
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TBL = "functional.insert_acl_permissions"
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TBL_PATH = "test-warehouse/functional.db/insert_acl_permissions"
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INSERT_QUERY = "INSERT INTO %s VALUES(1)" % TBL
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self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
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" functional.insert_acl_permissions")
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self.execute_query_expect_success(self.client, "CREATE TABLE "
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"functional.insert_acl_permissions (col int) ")
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# Check that a simple insert works
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self.execute_query_expect_success(self.client, INSERT_QUERY)
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# Remove the permission to write and confirm that INSERTs won't work
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self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::r-x,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Now add group access, still should fail (because the user will match and take
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# priority)
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self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::rwx,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Now make the target directory non-writable with posix permissions, but writable with
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# ACLs (ACLs should take priority). Note: chmod affects ACLs (!) so it has to be done
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# first.
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self.hdfs_client.chmod(TBL_PATH, "000")
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self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::r-x,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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self.execute_query_expect_success(self.client, INSERT_QUERY)
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# Finally, change the owner
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self.hdfs_client.chown(TBL_PATH, "another_user", "another_group")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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# Should be unwritable because 'other' ACLs don't allow writes
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Give write perms back to 'other'
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self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::r-x,other::rwx")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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# Should be writable because 'other' ACLs allow writes
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self.execute_query_expect_success(self.client, INSERT_QUERY)
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@SkipIfIsilon.hdfs_acls
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def test_insert_acl_permissions(self):
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"""Test that INSERT correctly respects ACLs"""
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TBL = "functional.insert_acl_permissions"
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TBL_PATH = "test-warehouse/functional.db/insert_acl_permissions"
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INSERT_QUERY = "INSERT INTO %s VALUES(1)" % TBL
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self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
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" functional.insert_acl_permissions")
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self.execute_query_expect_success(self.client, "CREATE TABLE "
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"functional.insert_acl_permissions (col int) ")
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# Check that a simple insert works
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self.execute_query_expect_success(self.client, INSERT_QUERY)
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USER = getpass.getuser()
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GROUP = grp.getgrgid(pwd.getpwnam(USER).pw_gid).gr_name
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# First, change the owner to someone other than user who runs impala service
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self.hdfs_client.chown(TBL_PATH, "another_user", GROUP)
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# Remove the permission to write and confirm that INSERTs won't work
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self.hdfs_client.setacl(TBL_PATH,
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"user::r-x,user:" + USER + ":r-x,group::r-x,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Add the permission to write. if we're not the owner of the file, INSERTs should work
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self.hdfs_client.setacl(TBL_PATH,
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"user::r-x,user:" + USER + ":rwx,group::r-x,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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self.execute_query_expect_success(self.client, INSERT_QUERY)
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# Now add group access, still should fail (because the user will match and take
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# priority)
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self.hdfs_client.setacl(TBL_PATH,
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"user::r-x,user:" + USER + ":r-x,group::rwx,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Check that the mask correctly applies to the anonymous group ACL
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self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::rwx,other::rwx,mask::r--")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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# Should be unwritable because mask applies to unnamed group and disables writing
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Check that the mask correctly applies to the named user ACL
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self.hdfs_client.setacl(TBL_PATH, "user::r-x,user:" + USER +
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":rwx,group::r-x,other::rwx,mask::r--")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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# Should be unwritable because mask applies to named user and disables writing
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Now make the target directory non-writable with posix permissions, but writable with
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# ACLs (ACLs should take priority). Note: chmod affects ACLs (!) so it has to be done
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# first.
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self.hdfs_client.chmod(TBL_PATH, "000")
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self.hdfs_client.setacl(TBL_PATH, "user::rwx,user:foo:rwx,group::rwx,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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self.execute_query_expect_success(self.client, INSERT_QUERY)
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# Finally, change the owner/group
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self.hdfs_client.chown(TBL_PATH, "test_user", "invalid")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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# Should be unwritable because 'other' ACLs don't allow writes
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self.execute_query_expect_failure(self.client, INSERT_QUERY)
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# Give write perms back to 'other'
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self.hdfs_client.setacl(TBL_PATH, "user::r-x,user:foo:rwx,group::r-x,other::rwx")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.insert_acl_permissions")
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# Should be writable because 'other' ACLs allow writes
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self.execute_query_expect_success(self.client, INSERT_QUERY)
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@SkipIfIsilon.hdfs_acls
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def test_load_permissions(self):
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# We rely on test_insert_acl_permissions() to exhaustively check that ACL semantics
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# are correct. Here we just validate that LOADs can't be done when we cannot read from
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# or write to the src directory, or write to the dest directory.
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TBL = "functional.load_acl_permissions"
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TBL_PATH = "test-warehouse/functional.db/load_acl_permissions"
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FILE_PATH = "tmp/impala_load_test"
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FILE_NAME = "%s/impala_data_file" % FILE_PATH
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LOAD_FILE_QUERY = "LOAD DATA INPATH '/%s' INTO TABLE %s" % (FILE_NAME, TBL)
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LOAD_DIR_QUERY = "LOAD DATA INPATH '/%s' INTO TABLE %s" % (FILE_PATH, TBL)
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self.hdfs_client.make_dir(FILE_PATH)
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self.hdfs_client.setacl(FILE_PATH, "user::rwx,group::rwx,other::---")
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self.execute_query_expect_success(self.client, "DROP TABLE IF EXISTS"
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" functional.load_acl_permissions")
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self.execute_query_expect_success(self.client, "CREATE TABLE "
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"functional.load_acl_permissions (col int)")
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self.hdfs_client.delete_file_dir(FILE_NAME)
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self.hdfs_client.create_file(FILE_NAME, "1")
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self.execute_query_expect_success(self.client, LOAD_FILE_QUERY)
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# Now remove write perms from the source directory
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self.hdfs_client.create_file(FILE_NAME, "1")
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self.hdfs_client.setacl(FILE_PATH, "user::---,group::---,other::---")
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self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::r-x,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.load_acl_permissions")
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self.execute_query_expect_failure(self.client, LOAD_FILE_QUERY)
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self.execute_query_expect_failure(self.client, LOAD_DIR_QUERY)
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# Remove write perms from target
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self.hdfs_client.setacl(FILE_PATH, "user::rwx,group::rwx,other::rwx")
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self.hdfs_client.setacl(TBL_PATH, "user::r-x,group::r-x,other::r-x")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.load_acl_permissions")
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self.execute_query_expect_failure(self.client, LOAD_FILE_QUERY)
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self.execute_query_expect_failure(self.client, LOAD_DIR_QUERY)
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# Finally remove read perms from file itself
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self.hdfs_client.setacl(FILE_NAME, "user::-wx,group::rwx,other::rwx")
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self.hdfs_client.setacl(TBL_PATH, "user::rwx,group::rwx,other::rwx")
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self.execute_query_expect_success(self.client,
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"REFRESH functional.load_acl_permissions")
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self.execute_query_expect_failure(self.client, LOAD_FILE_QUERY)
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# We expect this to succeed, it's not an error if all files in the dir cannot be read
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self.execute_query_expect_success(self.client, LOAD_DIR_QUERY)
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@pytest.mark.execute_serially
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def test_insert_select_with_empty_resultset(self):
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"""Test insert/select query won't trigger partition directory or zero size data file
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creation if the resultset of select is empty."""
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def check_path_exists(path, should_exist):
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fail = None
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try:
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self.hdfs_client.get_file_dir_status(path)
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if not should_exist:
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pytest.fail("file/dir '%s' unexpectedly exists" % path)
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except Exception, e:
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if should_exist:
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pytest.fail("file/dir '%s' does not exist" % path)
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db_path = "test-warehouse/%s.db/" % self.TEST_DB_NAME
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table_path = db_path + "test_insert_empty_result"
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partition_path = "{0}/year=2009/month=1".format(table_path)
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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)
|