backup_test.py

import unittest
import os
import re
from time import sleep, time
from .helpers.ptrack_helpers import base36enc, ProbackupTest, ProbackupException
import shutil
from distutils.dir_util import copy_tree
from testgres import ProcessType, QueryException
import subprocess


class BackupTest(ProbackupTest, unittest.TestCase):

    def test_full_backup(self):
        """
        Just test full backup with at least two segments
        """
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            initdb_params=['--data-checksums'],
            # we need to write a lot. Lets speedup a bit.
            pg_options={"fsync": "off", "synchronous_commit": "off"})

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        # Fill with data
        # Have to use scale=100 to create second segment.
        node.pgbench_init(scale=100, no_vacuum=True)

        # FULL
        backup_id = self.backup_node(backup_dir, 'node', node)

        out = self.validate_pb(backup_dir, 'node', backup_id)
        self.assertIn(
            "INFO: Backup {0} is valid".format(backup_id),
            out)

    def test_full_backup_stream(self):
        """
        Just test full backup with at least two segments in stream mode
        """
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            initdb_params=['--data-checksums'],
            # we need to write a lot. Lets speedup a bit.
            pg_options={"fsync": "off", "synchronous_commit": "off"})

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        node.slow_start()

        # Fill with data
        # Have to use scale=100 to create second segment.
        node.pgbench_init(scale=100, no_vacuum=True)

        # FULL
        backup_id = self.backup_node(backup_dir, 'node', node,
                                     options=["--stream"])

        out = self.validate_pb(backup_dir, 'node', backup_id)
        self.assertIn(
            "INFO: Backup {0} is valid".format(backup_id),
            out)

    # @unittest.skip("skip")
    # @unittest.expectedFailure
    # PGPRO-707
    def test_backup_modes_archive(self):
        """standart backup modes with ARCHIVE WAL method"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        full_backup_id = self.backup_node(backup_dir, 'node', node)
        show_backup = self.show_pb(backup_dir, 'node')[0]

        self.assertEqual(show_backup['status'], "OK")
        self.assertEqual(show_backup['backup-mode'], "FULL")

        # postmaster.pid and postmaster.opts shouldn't be copied
        excluded = True
        db_dir = os.path.join(
            backup_dir, "backups", 'node', full_backup_id, "database")

        for f in os.listdir(db_dir):
            if (
                os.path.isfile(os.path.join(db_dir, f)) and
                (
                    f == "postmaster.pid" or
                    f == "postmaster.opts"
                )
            ):
                excluded = False
                self.assertEqual(excluded, True)

        # page backup mode
        page_backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="page")

        show_backup_1 = self.show_pb(backup_dir, 'node')[1]
        self.assertEqual(show_backup_1['status'], "OK")
        self.assertEqual(show_backup_1['backup-mode'], "PAGE")

        # delta backup mode
        delta_backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="delta")

        show_backup_2 = self.show_pb(backup_dir, 'node')[2]
        self.assertEqual(show_backup_2['status'], "OK")
        self.assertEqual(show_backup_2['backup-mode'], "DELTA")

        # Check parent backup
        self.assertEqual(
            full_backup_id,
            self.show_pb(
                backup_dir, 'node',
                backup_id=show_backup_1['id'])["parent-backup-id"])

        self.assertEqual(
            page_backup_id,
            self.show_pb(
                backup_dir, 'node',
                backup_id=show_backup_2['id'])["parent-backup-id"])

    # @unittest.skip("skip")
    def test_smooth_checkpoint(self):
        """full backup with smooth checkpoint"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        self.backup_node(
            backup_dir, 'node', node,
            options=["-C"])
        self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")
        node.stop()

    # @unittest.skip("skip")
    def test_incremental_backup_without_full(self):
        """page backup without validated full backup"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        try:
            self.backup_node(backup_dir, 'node', node, backup_type="page")
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because page backup should not be possible "
                "without valid full backup.\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertTrue(
                "WARNING: Valid full backup on current timeline 1 is not found" in e.message and
                "ERROR: Create new full backup before an incremental one" in e.message,
                "\n Unexpected Error Message: {0}\n CMD: {1}".format(
                    repr(e.message), self.cmd))

        self.assertEqual(
            self.show_pb(backup_dir, 'node')[0]['status'],
            "ERROR")

    # @unittest.skip("skip")
    def test_incremental_backup_corrupt_full(self):
        """page-level backup with corrupted full backup"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        backup_id = self.backup_node(backup_dir, 'node', node)
        file = os.path.join(
            backup_dir, "backups", "node", backup_id,
            "database", "postgresql.conf")
        os.remove(file)

        try:
            self.validate_pb(backup_dir, 'node')
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of validation of corrupted backup.\n"
                " Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertTrue(
                "INFO: Validate backups of the instance 'node'" in e.message and
                "WARNING: Backup file" in e.message and "is not found" in e.message and
                "WARNING: Backup {0} data files are corrupted".format(
                    backup_id) in e.message and
                "WARNING: Some backups are not valid" in e.message,
                "\n Unexpected Error Message: {0}\n CMD: {1}".format(
                    repr(e.message), self.cmd))

        try:
            self.backup_node(backup_dir, 'node', node, backup_type="page")
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because page backup should not be possible "
                "without valid full backup.\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertTrue(
                "WARNING: Valid full backup on current timeline 1 is not found" in e.message and
                "ERROR: Create new full backup before an incremental one" in e.message,
                "\n Unexpected Error Message: {0}\n CMD: {1}".format(
                    repr(e.message), self.cmd))

        self.assertEqual(
            self.show_pb(backup_dir, 'node', backup_id)['status'], "CORRUPT")
        self.assertEqual(
            self.show_pb(backup_dir, 'node')[1]['status'], "ERROR")

    # @unittest.skip("skip")
    def test_delta_threads_stream(self):
        """delta multi thread backup mode and stream"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        node.slow_start()

        self.backup_node(
            backup_dir, 'node', node, backup_type="full",
            options=["-j", "4", "--stream"])

        self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")
        self.backup_node(
            backup_dir, 'node', node,
            backup_type="delta", options=["-j", "4", "--stream"])
        self.assertEqual(self.show_pb(backup_dir, 'node')[1]['status'], "OK")

    # @unittest.skip("skip")
    def test_page_detect_corruption(self):
        """make node, corrupt some page, check that backup failed"""

        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            ptrack_enable=self.ptrack,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')

        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        node.slow_start()

        self.backup_node(
            backup_dir, 'node', node,
            backup_type="full", options=["-j", "4", "--stream"])

        node.safe_psql(
            "postgres",
            "create table t_heap as select 1 as id, md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,1000) i")

        node.safe_psql(
            "postgres",
            "CHECKPOINT")

        heap_path = node.safe_psql(
            "postgres",
            "select pg_relation_filepath('t_heap')").decode('utf-8').rstrip()

        path = os.path.join(node.data_dir, heap_path)
        with open(path, "rb+", 0) as f:
                f.seek(9000)
                f.write(b"bla")
                f.flush()
                f.close

        try:
            self.backup_node(
                backup_dir, 'node', node, backup_type="full",
                options=["-j", "4", "--stream", "--log-level-file=VERBOSE"])
            self.assertEqual(
                1, 0,
                "Expecting Error because data file is corrupted"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertTrue(
                'ERROR: Corruption detected in file "{0}", '
                'block 1: page verification failed, calculated checksum'.format(path),
                e.message)

        self.assertEqual(
            self.show_pb(backup_dir, 'node')[1]['status'],
            'ERROR',
            "Backup Status should be ERROR")

    # @unittest.skip("skip")
    def test_backup_detect_corruption(self):
        """make node, corrupt some page, check that backup failed"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            ptrack_enable=self.ptrack,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')

        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        if self.ptrack:
            node.safe_psql(
                "postgres",
                "create extension ptrack")

        self.backup_node(
            backup_dir, 'node', node,
            backup_type="full", options=["-j", "4", "--stream"])

        node.safe_psql(
            "postgres",
            "create table t_heap as select 1 as id, md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,10000) i")

        heap_path = node.safe_psql(
            "postgres",
            "select pg_relation_filepath('t_heap')").decode('utf-8').rstrip()

        self.backup_node(
            backup_dir, 'node', node,
            backup_type="full", options=["-j", "4", "--stream"])

        node.safe_psql(
            "postgres",
            "select count(*) from t_heap")

        node.safe_psql(
            "postgres",
            "update t_heap set id = id + 10000")

        node.stop()

        heap_fullpath = os.path.join(node.data_dir, heap_path)

        with open(heap_fullpath, "rb+", 0) as f:
                f.seek(9000)
                f.write(b"bla")
                f.flush()
                f.close

        node.slow_start()

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="full", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page verification failed, calculated checksum'.format(
                    heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="delta", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page verification failed, calculated checksum'.format(
                    heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="page", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page verification failed, calculated checksum'.format(
                    heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        if self.ptrack:
            try:
                self.backup_node(
                    backup_dir, 'node', node,
                    backup_type="ptrack", options=["-j", "4", "--stream"])
                # we should die here because exception is what we expect to happen
                self.assertEqual(
                    1, 0,
                    "Expecting Error because of block corruption"
                    "\n Output: {0} \n CMD: {1}".format(
                        repr(self.output), self.cmd))
            except ProbackupException as e:
                self.assertIn(
                    'ERROR: Corruption detected in file "{0}", block 1: '
                    'page verification failed, calculated checksum'.format(
                        heap_fullpath),
                    e.message,
                    '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                        repr(e.message), self.cmd))

    # @unittest.skip("skip")
    def test_backup_detect_invalid_block_header(self):
        """make node, corrupt some page, check that backup failed"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            ptrack_enable=self.ptrack,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')

        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        if self.ptrack:
            node.safe_psql(
                "postgres",
                "create extension ptrack")

        node.safe_psql(
            "postgres",
            "create table t_heap as select 1 as id, md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,10000) i")

        heap_path = node.safe_psql(
            "postgres",
            "select pg_relation_filepath('t_heap')").decode('utf-8').rstrip()

        self.backup_node(
            backup_dir, 'node', node,
            backup_type="full", options=["-j", "4", "--stream"])

        node.safe_psql(
            "postgres",
            "select count(*) from t_heap")

        node.safe_psql(
            "postgres",
            "update t_heap set id = id + 10000")

        node.stop()

        heap_fullpath = os.path.join(node.data_dir, heap_path)
        with open(heap_fullpath, "rb+", 0) as f:
                f.seek(8193)
                f.write(b"blahblahblahblah")
                f.flush()
                f.close

        node.slow_start()

#        self.backup_node(
#            backup_dir, 'node', node,
#            backup_type="full", options=["-j", "4", "--stream"])

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="full", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page header invalid, pd_lower'.format(heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="delta", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page header invalid, pd_lower'.format(heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="page", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page header invalid, pd_lower'.format(heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        if self.ptrack:
            try:
                self.backup_node(
                    backup_dir, 'node', node,
                    backup_type="ptrack", options=["-j", "4", "--stream"])
                # we should die here because exception is what we expect to happen
                self.assertEqual(
                    1, 0,
                    "Expecting Error because of block corruption"
                    "\n Output: {0} \n CMD: {1}".format(
                        repr(self.output), self.cmd))
            except ProbackupException as e:
                self.assertIn(
                    'ERROR: Corruption detected in file "{0}", block 1: '
                    'page header invalid, pd_lower'.format(heap_fullpath),
                    e.message,
                    '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                        repr(e.message), self.cmd))

    # @unittest.skip("skip")
    def test_backup_detect_missing_permissions(self):
        """make node, corrupt some page, check that backup failed"""
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            ptrack_enable=self.ptrack,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')

        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        if self.ptrack:
            node.safe_psql(
                "postgres",
                "create extension ptrack")

        node.safe_psql(
            "postgres",
            "create table t_heap as select 1 as id, md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,10000) i")

        heap_path = node.safe_psql(
            "postgres",
            "select pg_relation_filepath('t_heap')").decode('utf-8').rstrip()

        self.backup_node(
            backup_dir, 'node', node,
            backup_type="full", options=["-j", "4", "--stream"])

        node.safe_psql(
            "postgres",
            "select count(*) from t_heap")

        node.safe_psql(
            "postgres",
            "update t_heap set id = id + 10000")

        node.stop()

        heap_fullpath = os.path.join(node.data_dir, heap_path)
        with open(heap_fullpath, "rb+", 0) as f:
                f.seek(8193)
                f.write(b"blahblahblahblah")
                f.flush()
                f.close

        node.slow_start()

#        self.backup_node(
#            backup_dir, 'node', node,
#            backup_type="full", options=["-j", "4", "--stream"])

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="full", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page header invalid, pd_lower'.format(heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="delta", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page header invalid, pd_lower'.format(heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type="page", options=["-j", "4", "--stream"])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because of block corruption"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Corruption detected in file "{0}", block 1: '
                'page header invalid, pd_lower'.format(heap_fullpath),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        sleep(1)

        if self.ptrack:
            try:
                self.backup_node(
                    backup_dir, 'node', node,
                    backup_type="ptrack", options=["-j", "4", "--stream"])
                # we should die here because exception is what we expect to happen
                self.assertEqual(
                    1, 0,
                    "Expecting Error because of block corruption"
                    "\n Output: {0} \n CMD: {1}".format(
                        repr(self.output), self.cmd))
            except ProbackupException as e:
                self.assertIn(
                    'ERROR: Corruption detected in file "{0}", block 1: '
                    'page header invalid, pd_lower'.format(heap_fullpath),
                    e.message,
                    '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                        repr(e.message), self.cmd))

    # @unittest.skip("skip")
    def test_backup_truncate_misaligned(self):
        """
        make node, truncate file to size not even to BLCKSIZE,
        take backup
        """
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')

        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        node.slow_start()

        node.safe_psql(
            "postgres",
            "create table t_heap as select 1 as id, md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,100000) i")

        node.safe_psql(
            "postgres",
            "CHECKPOINT;")

        heap_path = node.safe_psql(
            "postgres",
            "select pg_relation_filepath('t_heap')").decode('utf-8').rstrip()

        heap_size = node.safe_psql(
            "postgres",
            "select pg_relation_size('t_heap')")

        with open(os.path.join(node.data_dir, heap_path), "rb+", 0) as f:
            f.truncate(int(heap_size) - 4096)
            f.flush()
            f.close

        output = self.backup_node(
            backup_dir, 'node', node, backup_type="full",
            options=["-j", "4", "--stream"], return_id=False)

        self.assertIn("WARNING: File", output)
        self.assertIn("invalid file size", output)

    # @unittest.skip("skip")
    def test_tablespace_in_pgdata_pgpro_1376(self):
        """PGPRO-1376 """
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')

        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        node.slow_start()

        self.create_tblspace_in_node(
            node, 'tblspace1',
            tblspc_path=(
                os.path.join(
                    node.data_dir, 'somedirectory', '100500'))
            )

        self.create_tblspace_in_node(
            node, 'tblspace2',
            tblspc_path=(os.path.join(node.data_dir))
            )

        node.safe_psql(
            "postgres",
            "create table t_heap1 tablespace tblspace1 as select 1 as id, "
            "md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,1000) i")

        node.safe_psql(
            "postgres",
            "create table t_heap2 tablespace tblspace2 as select 1 as id, "
            "md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,1000) i")

        backup_id_1 = self.backup_node(
            backup_dir, 'node', node, backup_type="full",
            options=["-j", "4", "--stream"])

        node.safe_psql(
            "postgres",
            "drop table t_heap2")
        node.safe_psql(
            "postgres",
            "drop tablespace tblspace2")

        self.backup_node(
                backup_dir, 'node', node, backup_type="full",
                options=["-j", "4", "--stream"])

        pgdata = self.pgdata_content(node.data_dir)

        relfilenode = node.safe_psql(
            "postgres",
            "select 't_heap1'::regclass::oid"
            ).decode('utf-8').rstrip()

        list = []
        for root, dirs, files in os.walk(os.path.join(
                backup_dir, 'backups', 'node', backup_id_1)):
            for file in files:
                if file == relfilenode:
                    path = os.path.join(root, file)
                    list = list + [path]

        # We expect that relfilenode can be encountered only once
        if len(list) > 1:
            message = ""
            for string in list:
                message = message + string + "\n"
            self.assertEqual(
                1, 0,
                "Following file copied twice by backup:\n {0}".format(
                    message)
                )

        node.cleanup()

        self.restore_node(
            backup_dir, 'node', node, options=["-j", "4"])

        if self.paranoia:
            pgdata_restored = self.pgdata_content(node.data_dir)
            self.compare_pgdata(pgdata, pgdata_restored)

    # @unittest.skip("skip")
    def test_basic_tablespace_handling(self):
        """
        make node, take full backup, check that restore with
        tablespace mapping will end with error, take page backup,
        check that restore with tablespace mapping will end with
        success
        """
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])

        backup_dir = os.path.join(self.tmp_path, self.module_name, self.fname, 'backup')

        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        node.slow_start()

        backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="full",
            options=["-j", "4", "--stream"])

        tblspace1_old_path = self.get_tblspace_path(node, 'tblspace1_old')
        tblspace2_old_path = self.get_tblspace_path(node, 'tblspace2_old')

        self.create_tblspace_in_node(
            node, 'some_lame_tablespace')

        self.create_tblspace_in_node(
            node, 'tblspace1',
            tblspc_path=tblspace1_old_path)

        self.create_tblspace_in_node(
            node, 'tblspace2',
            tblspc_path=tblspace2_old_path)

        node.safe_psql(
            "postgres",
            "create table t_heap_lame tablespace some_lame_tablespace "
            "as select 1 as id, md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,1000) i")

        node.safe_psql(
            "postgres",
            "create table t_heap2 tablespace tblspace2 as select 1 as id, "
            "md5(i::text) as text, "
            "md5(repeat(i::text,10))::tsvector as tsvector "
            "from generate_series(0,1000) i")

        tblspace1_new_path = self.get_tblspace_path(node, 'tblspace1_new')
        tblspace2_new_path = self.get_tblspace_path(node, 'tblspace2_new')

        node_restored = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node_restored'))
        node_restored.cleanup()

        try:
            self.restore_node(
                backup_dir, 'node', node_restored,
                options=[
                    "-j", "4",
                    "-T", "{0}={1}".format(
                        tblspace1_old_path, tblspace1_new_path),
                    "-T", "{0}={1}".format(
                        tblspace2_old_path, tblspace2_new_path)])
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because tablespace mapping is incorrect"
                "\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Backup {0} has no tablespaceses, '
                'nothing to remap'.format(backup_id),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        node.safe_psql(
            "postgres",
            "drop table t_heap_lame")

        node.safe_psql(
            "postgres",
            "drop tablespace some_lame_tablespace")

        self.backup_node(
            backup_dir, 'node', node, backup_type="delta",
            options=["-j", "4", "--stream"])

        self.restore_node(
            backup_dir, 'node', node_restored,
            options=[
                "-j", "4",
                "-T", "{0}={1}".format(
                    tblspace1_old_path, tblspace1_new_path),
                "-T", "{0}={1}".format(
                    tblspace2_old_path, tblspace2_new_path)])

        if self.paranoia:
            pgdata = self.pgdata_content(node.data_dir)

        if self.paranoia:
            pgdata_restored = self.pgdata_content(node_restored.data_dir)
            self.compare_pgdata(pgdata, pgdata_restored)

    # @unittest.skip("skip")
    def test_tablespace_handling_1(self):
        """
        make node with tablespace A, take full backup, check that restore with
        tablespace mapping of tablespace B will end with error
        """
        node = self.make_simple_node(
            base_dir=os.path.join(self.module_name, self.fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])