pg_probackup/tests/restore.py

import os
import unittest
from .helpers.ptrack_helpers import ProbackupTest, ProbackupException
import subprocess
from datetime import datetime
import sys
from time import sleep
from datetime import datetime, timedelta
import hashlib


module_name = 'restore'


class RestoreTest(ProbackupTest, unittest.TestCase):

    # @unittest.skip("skip")
    # @unittest.expectedFailure
    def test_restore_full_to_latest(self):
        """recovery to latest from full backup"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )

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

        node.pgbench_init(scale=2)
        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()
        before = node.execute("postgres", "SELECT * FROM pgbench_branches")
        backup_id = self.backup_node(backup_dir, 'node', node)

        node.stop()
        node.cleanup()

        # 1 - Test recovery from latest
        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=["-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        # 2 - Test that recovery.conf was created
        recovery_conf = os.path.join(node.data_dir, "recovery.conf")
        self.assertEqual(os.path.isfile(recovery_conf), True)

        node.slow_start()

        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_full_page_to_latest(self):
        """recovery to latest from full + page backups"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)

        self.backup_node(backup_dir, 'node', node)

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="page")

        before = node.execute("postgres", "SELECT * FROM pgbench_branches")

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=["-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()

        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_to_specific_timeline(self):
        """recovery to target timeline"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)

        before = node.execute("postgres", "SELECT * FROM pgbench_branches")

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

        target_tli = int(
            node.get_control_data()["Latest checkpoint's TimeLineID"])
        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=["-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
            options=['-T', '10', '-c', '2', '--no-vacuum'])
        pgbench.wait()
        pgbench.stdout.close()

        self.backup_node(backup_dir, 'node', node)

        node.stop()
        node.cleanup()

        # Correct Backup must be choosen for restore
        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", "--timeline={0}".format(target_tli),
                    "--recovery-target-action=promote"]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        recovery_target_timeline = self.get_recovery_conf(
            node)["recovery_target_timeline"]
        self.assertEqual(int(recovery_target_timeline), target_tli)

        node.slow_start()
        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_to_time(self):
        """recovery to target time"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.append_conf("postgresql.auto.conf", "TimeZone = Europe/Moscow")
        node.slow_start()

        node.pgbench_init(scale=2)
        before = node.execute("postgres", "SELECT * FROM pgbench_branches")

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

        target_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", '--time={0}'.format(target_time),
                    "--recovery-target-action=promote"
                    ]
                ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_to_xid_inclusive(self):
        """recovery to target xid"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)
        with node.connect("postgres") as con:
            con.execute("CREATE TABLE tbl0005 (a text)")
            con.commit()

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

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        before = node.safe_psql("postgres", "SELECT * FROM pgbench_branches")
        with node.connect("postgres") as con:
            res = con.execute("INSERT INTO tbl0005 VALUES ('inserted') RETURNING (xmin)")
            con.commit()
            target_xid = res[0][0]

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", '--xid={0}'.format(target_xid),
                    "--recovery-target-action=promote"]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        after = node.safe_psql("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)
        self.assertEqual(
            len(node.execute("postgres", "SELECT * FROM tbl0005")), 1)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_to_xid_not_inclusive(self):
        """recovery with target inclusive false"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'ptrack_enable': 'on',
                'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)
        with node.connect("postgres") as con:
            con.execute("CREATE TABLE tbl0005 (a text)")
            con.commit()

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

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        before = node.execute("postgres", "SELECT * FROM pgbench_branches")
        with node.connect("postgres") as con:
            result = con.execute("INSERT INTO tbl0005 VALUES ('inserted') RETURNING (xmin)")
            con.commit()
            target_xid = result[0][0]

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4",
                    '--xid={0}'.format(target_xid),
                    "--inclusive=false",
                    "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)
        self.assertEqual(
            len(node.execute("postgres", "SELECT * FROM tbl0005")), 0)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_to_lsn_inclusive(self):
        """recovery to target lsn"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )

        if self.get_version(node) < self.version_to_num('10.0'):
            self.del_test_dir(module_name, fname)
            return

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

        node.pgbench_init(scale=2)
        with node.connect("postgres") as con:
            con.execute("CREATE TABLE tbl0005 (a int)")
            con.commit()

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

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        before = node.safe_psql("postgres", "SELECT * FROM pgbench_branches")
        with node.connect("postgres") as con:
            con.execute("INSERT INTO tbl0005 VALUES (1)")
            con.commit()
            res = con.execute("SELECT pg_current_wal_lsn()")
            con.commit()
            con.execute("INSERT INTO tbl0005 VALUES (2)")
            con.commit()
            xlogid, xrecoff = res[0][0].split('/')
            xrecoff = hex(int(xrecoff, 16) + 1)[2:]
            target_lsn = "{0}/{1}".format(xlogid, xrecoff)

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", '--lsn={0}'.format(target_lsn),
                    "--recovery-target-action=promote"]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()

        after = node.safe_psql("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)
        self.assertEqual(
            len(node.execute("postgres", "SELECT * FROM tbl0005")), 2)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_to_lsn_not_inclusive(self):
        """recovery to target lsn"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )

        if self.get_version(node) < self.version_to_num('10.0'):
            self.del_test_dir(module_name, fname)
            return

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

        node.pgbench_init(scale=2)
        with node.connect("postgres") as con:
            con.execute("CREATE TABLE tbl0005 (a int)")
            con.commit()

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

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        before = node.safe_psql("postgres", "SELECT * FROM pgbench_branches")
        with node.connect("postgres") as con:
            con.execute("INSERT INTO tbl0005 VALUES (1)")
            con.commit()
            res = con.execute("SELECT pg_current_wal_lsn()")
            con.commit()
            con.execute("INSERT INTO tbl0005 VALUES (2)")
            con.commit()
            xlogid, xrecoff = res[0][0].split('/')
            xrecoff = hex(int(xrecoff, 16) + 1)[2:]
            target_lsn = "{0}/{1}".format(xlogid, xrecoff)

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "--inclusive=false",
                    "-j", "4", '--lsn={0}'.format(target_lsn),
                    "--recovery-target-action=promote"]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()

        after = node.safe_psql("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)
        self.assertEqual(
            len(node.execute("postgres", "SELECT * FROM tbl0005")), 1)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_full_ptrack_archive(self):
        """recovery to latest from archive full+ptrack backups"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica', 'ptrack_enable': 'on'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)

        self.backup_node(backup_dir, 'node', node)

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="ptrack")

        before = node.execute("postgres", "SELECT * FROM pgbench_branches")

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_ptrack(self):
        """recovery to latest from archive full+ptrack+ptrack backups"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica', 'ptrack_enable': 'on'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)

        self.backup_node(backup_dir, 'node', node)

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        self.backup_node(backup_dir, 'node', node, backup_type="ptrack")

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

        backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="ptrack")

        before = node.execute("postgres", "SELECT * FROM pgbench_branches")

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_full_ptrack_stream(self):
        """recovery in stream mode to latest from full + ptrack backups"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'ptrack_enable': 'on',
                'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)

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

        pgbench = node.pgbench(
            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        pgbench.wait()
        pgbench.stdout.close()

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

        before = node.execute("postgres", "SELECT * FROM pgbench_branches")

        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=["-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        after = node.execute("postgres", "SELECT * FROM pgbench_branches")
        self.assertEqual(before, after)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_full_ptrack_under_load(self):
        """
        recovery to latest from full + ptrack backups
        with loads when ptrack backup do
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'ptrack_enable': 'on',
                'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        node.pgbench_init(scale=2)

        self.backup_node(backup_dir, 'node', node)

        pgbench = node.pgbench(
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT,
            options=["-c", "4", "-T", "8"]
        )

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

        pgbench.wait()
        pgbench.stdout.close()

        bbalance = node.execute(
            "postgres", "SELECT sum(bbalance) FROM pgbench_branches")
        delta = node.execute(
            "postgres", "SELECT sum(delta) FROM pgbench_history")

        self.assertEqual(bbalance, delta)
        node.stop()
        node.cleanup()

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=["-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        bbalance = node.execute(
            "postgres", "SELECT sum(bbalance) FROM pgbench_branches")
        delta = node.execute(
            "postgres", "SELECT sum(delta) FROM pgbench_history")
        self.assertEqual(bbalance, delta)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_full_under_load_ptrack(self):
        """
        recovery to latest from full + page backups
        with loads when full backup do
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'ptrack_enable': 'on',
                'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        # wal_segment_size = self.guc_wal_segment_size(node)
        node.pgbench_init(scale=2)

        pgbench = node.pgbench(
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT,
            options=["-c", "4", "-T", "8"]
        )

        self.backup_node(backup_dir, 'node', node)

        pgbench.wait()
        pgbench.stdout.close()

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

        bbalance = node.execute(
            "postgres", "SELECT sum(bbalance) FROM pgbench_branches")
        delta = node.execute(
            "postgres", "SELECT sum(delta) FROM pgbench_history")

        self.assertEqual(bbalance, delta)

        node.stop()
        node.cleanup()
        # self.wrong_wal_clean(node, wal_segment_size)

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=["-j", "4", "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))
        node.slow_start()
        bbalance = node.execute(
            "postgres", "SELECT sum(bbalance) FROM pgbench_branches")
        delta = node.execute(
            "postgres", "SELECT sum(delta) FROM pgbench_history")
        self.assertEqual(bbalance, delta)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_with_tablespace_mapping_1(self):
        """recovery using tablespace-mapping option"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'ptrack_enable': 'on',
                'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
        self.init_pb(backup_dir)
        self.add_instance(backup_dir, 'node', node)
        self.set_archiving(backup_dir, 'node', node)
        node.slow_start()

        # Create tablespace
        tblspc_path = os.path.join(node.base_dir, "tblspc")
        os.makedirs(tblspc_path)
        with node.connect("postgres") as con:
            con.connection.autocommit = True
            con.execute("CREATE TABLESPACE tblspc LOCATION '%s'" % tblspc_path)
            con.connection.autocommit = False
            con.execute("CREATE TABLE test (id int) TABLESPACE tblspc")
            con.execute("INSERT INTO test VALUES (1)")
            con.commit()

        backup_id = self.backup_node(backup_dir, 'node', node)
        self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")

        # 1 - Try to restore to existing directory
        node.stop()
        try:
            self.restore_node(backup_dir, 'node', node)
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because restore destionation is not empty.\n "
                "Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: restore destination is not empty: "{0}"'.format(node.data_dir),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        # 2 - Try to restore to existing tablespace directory
        tblspc_path_tmp = os.path.join(node.base_dir, "tblspc_tmp")
        os.rename(tblspc_path, tblspc_path_tmp)
        node.cleanup()
        os.rename(tblspc_path_tmp, tblspc_path)
        try:
            self.restore_node(backup_dir, 'node', node)
            # we should die here because exception is what we expect to happen
            self.assertEqual(
                1, 0,
                "Expecting Error because restore tablespace destination is "
                "not empty.\n Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: restore tablespace destination is not empty:',
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        # 3 - Restore using tablespace-mapping
        tblspc_path_new = os.path.join(node.base_dir, "tblspc_new")
        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-T", "%s=%s" % (tblspc_path, tblspc_path_new),
                    "--recovery-target-action=promote"]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()

        result = node.execute("postgres", "SELECT id FROM test")
        self.assertEqual(result[0][0], 1)

        # 4 - Restore using tablespace-mapping using page backup
        self.backup_node(backup_dir, 'node', node)
        with node.connect("postgres") as con:
            con.execute("INSERT INTO test VALUES (2)")
            con.commit()
        backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="page")

        show_pb = self.show_pb(backup_dir, 'node')
        self.assertEqual(show_pb[1]['status'], "OK")
        self.assertEqual(show_pb[2]['status'], "OK")

        node.stop()
        node.cleanup()
        tblspc_path_page = os.path.join(node.base_dir, "tblspc_page")

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-T", "%s=%s" % (tblspc_path_new, tblspc_path_page),
                    "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        result = node.execute("postgres", "SELECT id FROM test OFFSET 1")
        self.assertEqual(result[0][0], 2)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_with_tablespace_mapping_2(self):
        """recovery using tablespace-mapping option and page backup"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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
        self.backup_node(backup_dir, 'node', node)
        self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")

        # Create tablespace
        tblspc_path = os.path.join(node.base_dir, "tblspc")
        os.makedirs(tblspc_path)
        with node.connect("postgres") as con:
            con.connection.autocommit = True
            con.execute("CREATE TABLESPACE tblspc LOCATION '%s'" % tblspc_path)
            con.connection.autocommit = False
            con.execute(
                "CREATE TABLE tbl AS SELECT * "
                "FROM generate_series(0,3) AS integer")
            con.commit()

        # First page backup
        self.backup_node(backup_dir, 'node', node, backup_type="page")
        self.assertEqual(self.show_pb(backup_dir, 'node')[1]['status'], "OK")
        self.assertEqual(
            self.show_pb(backup_dir, 'node')[1]['backup-mode'], "PAGE")

        # Create tablespace table
        with node.connect("postgres") as con:
            con.connection.autocommit = True
            con.execute("CHECKPOINT")
            con.connection.autocommit = False
            con.execute("CREATE TABLE tbl1 (a int) TABLESPACE tblspc")
            con.execute(
                "INSERT INTO tbl1 SELECT * "
                "FROM generate_series(0,3) AS integer")
            con.commit()

        # Second page backup
        backup_id = self.backup_node(
            backup_dir, 'node', node, backup_type="page")
        self.assertEqual(self.show_pb(backup_dir, 'node')[2]['status'], "OK")
        self.assertEqual(
            self.show_pb(backup_dir, 'node')[2]['backup-mode'], "PAGE")

        node.stop()
        node.cleanup()

        tblspc_path_new = os.path.join(node.base_dir, "tblspc_new")

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-T", "%s=%s" % (tblspc_path, tblspc_path_new),
                    "--recovery-target-action=promote"]),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))
        node.slow_start()

        count = node.execute("postgres", "SELECT count(*) FROM tbl")
        self.assertEqual(count[0][0], 4)
        count = node.execute("postgres", "SELECT count(*) FROM tbl1")
        self.assertEqual(count[0][0], 4)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_archive_node_backup_stream_restore_to_recovery_time(self):
        """
        make node with archiving, make stream backup,
        make PITR to Recovery Time
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica', 'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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, options=["--stream"])
        node.safe_psql("postgres", "create table t_heap(a int)")
        node.safe_psql("postgres", "select pg_switch_xlog()")
        node.stop()
        node.cleanup()

        recovery_time = self.show_pb(
            backup_dir, 'node', backup_id)['recovery-time']

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", '--time={0}'.format(recovery_time),
                    "--recovery-target-action=promote"
                    ]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()

        result = node.psql("postgres", 'select * from t_heap')
        self.assertTrue('does not exist' in result[2].decode("utf-8"))

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    # @unittest.expectedFailure
    def test_archive_node_backup_stream_restore_to_recovery_time(self):
        """
        make node with archiving, make stream backup,
        make PITR to Recovery Time
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica', 'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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, options=["--stream"])
        node.safe_psql("postgres", "create table t_heap(a int)")
        node.stop()
        node.cleanup()

        recovery_time = self.show_pb(
            backup_dir, 'node', backup_id)['recovery-time']

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", '--time={0}'.format(recovery_time),
                    "--recovery-target-action=promote"
                ]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()
        result = node.psql("postgres", 'select * from t_heap')
        self.assertTrue('does not exist' in result[2].decode("utf-8"))

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    # @unittest.expectedFailure
    def test_archive_node_backup_stream_pitr(self):
        """
        make node with archiving, make stream backup,
        create table t_heap, make pitr to Recovery Time,
        check that t_heap do not exists
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica', 'max_wal_senders': '2'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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, options=["--stream"])
        node.safe_psql("postgres", "create table t_heap(a int)")
        node.cleanup()

        recovery_time = self.show_pb(
            backup_dir, 'node', backup_id)['recovery-time']

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node,
                options=[
                    "-j", "4", '--time={0}'.format(recovery_time),
                    "--recovery-target-action=promote"
                    ]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

        node.slow_start()

        result = node.psql("postgres", 'select * from t_heap')
        self.assertEqual(True, 'does not exist' in result[2].decode("utf-8"))

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    # @unittest.expectedFailure
    def test_archive_node_backup_archive_pitr_2(self):
        """
        make node with archiving, make archive backup,
        create table t_heap, make pitr to Recovery Time,
        check that t_heap do not exists
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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)
        if self.paranoia:
            pgdata = self.pgdata_content(node.data_dir)

        node.safe_psql("postgres", "create table t_heap(a int)")
        node.stop()

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

        recovery_time = self.show_pb(
            backup_dir, 'node', backup_id)['recovery-time']

        self.assertIn(
            "INFO: Restore of backup {0} completed.".format(backup_id),
            self.restore_node(
                backup_dir, 'node', node_restored,
                options=[
                    "-j", "4", '--time={0}'.format(recovery_time),
                    "--recovery-target-action=promote"]
            ),
            '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                repr(self.output), self.cmd))

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

        node_restored.append_conf(
            "postgresql.auto.conf", "port = {0}".format(node_restored.port))

        node_restored.slow_start()

        result = node_restored.psql("postgres", 'select * from t_heap')
        self.assertTrue('does not exist' in result[2].decode("utf-8"))

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    # @unittest.expectedFailure
    def test_archive_restore_to_restore_point(self):
        """
        make node with archiving, make archive backup,
        create table t_heap, make pitr to Recovery Time,
        check that t_heap do not exists
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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)

        node.safe_psql(
            "postgres",
            "create table t_heap as select generate_series(0,10000)")
        result = node.safe_psql(
            "postgres",
            "select * from t_heap")
        node.safe_psql(
            "postgres", "select pg_create_restore_point('savepoint')")
        node.safe_psql(
            "postgres",
            "create table t_heap_1 as select generate_series(0,10000)")
        node.cleanup()

        self.restore_node(
            backup_dir, 'node', node,
            options=[
                "--recovery-target-name=savepoint",
                "--recovery-target-action=promote"])

        node.slow_start()

        result_new = node.safe_psql("postgres", "select * from t_heap")
        res = node.psql("postgres", "select * from t_heap_1")
        self.assertEqual(
            res[0], 1,
            "Table t_heap_1 should not exist in restored instance")

        self.assertEqual(result, result_new)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    @unittest.skip("skip")
    # @unittest.expectedFailure
    def test_zags_block_corrupt(self):
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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)

        conn = node.connect()
        with node.connect("postgres") as conn:

            conn.execute(
                "create table tbl(i int)")
            conn.commit()
            conn.execute(
                "create index idx ON tbl (i)")
            conn.commit()
            conn.execute(
                "insert into tbl select i from generate_series(0,400) as i")
            conn.commit()
            conn.execute(
                "select pg_relation_size('idx')")
            conn.commit()
            conn.execute(
                "delete from tbl where i < 100")
            conn.commit()
            conn.execute(
                "explain analyze select i from tbl order by i")
            conn.commit()
            conn.execute(
                "select i from tbl order by i")
            conn.commit()
            conn.execute(
                "create extension pageinspect")
            conn.commit()
            print(conn.execute(
                "select * from bt_page_stats('idx',1)"))
            conn.commit()
            conn.execute(
                "insert into tbl select i from generate_series(0,100) as i")
            conn.commit()
            conn.execute(
                "insert into tbl select i from generate_series(0,100) as i")
            conn.commit()
            conn.execute(
                "insert into tbl select i from generate_series(0,100) as i")
            conn.commit()
            conn.execute(
                "insert into tbl select i from generate_series(0,100) as i")


        node_restored = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node_restored'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )

        node_restored.cleanup()

        self.restore_node(
            backup_dir, 'node', node_restored)

        node_restored.append_conf("postgresql.auto.conf", "archive_mode = 'off'")
        node_restored.append_conf("postgresql.auto.conf", "hot_standby = 'on'")
        node_restored.append_conf(
            "postgresql.auto.conf", "port = {0}".format(node_restored.port))

        node_restored.slow_start()

    @unittest.skip("skip")
    # @unittest.expectedFailure
    def test_zags_block_corrupt_1(self):
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'autovacuum': 'off',
                'full_page_writes': 'on'}
            )
        backup_dir = os.path.join(self.tmp_path, module_name, 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)

        node.safe_psql('postgres', 'create table tbl(i int)')

        node.safe_psql('postgres', 'create index idx ON tbl (i)')

        node.safe_psql(
            'postgres',
            'insert into tbl select i from generate_series(0,100000) as i')

        print(node.safe_psql(
            'postgres',
            "select pg_relation_size('idx')"))

        node.safe_psql(
            'postgres',
            'delete from tbl where i%2 = 0')

        node.safe_psql(
            'postgres',
            'explain analyze select i from tbl order by i')

        node.safe_psql(
            'postgres',
            'select i from tbl order by i')

        node.safe_psql(
            'postgres',
            'create extension pageinspect')

        print(node.safe_psql(
            'postgres',
            "select * from bt_page_stats('idx',1)"))

        node.safe_psql(
            'postgres',
            'checkpoint')

        node.safe_psql(
            'postgres',
            'insert into tbl select i from generate_series(0,100) as i')

        node.safe_psql(
            'postgres',
            'insert into tbl select i from generate_series(0,100) as i')

        node.safe_psql(
            'postgres',
            'insert into tbl select i from generate_series(0,100) as i')

        node.safe_psql(
            'postgres',
            'insert into tbl select i from generate_series(0,100) as i')

        self.switch_wal_segment(node)

        node_restored = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node_restored'),
            initdb_params=['--data-checksums'],
            pg_options={'wal_level': 'replica'}
            )

        pgdata = self.pgdata_content(node.data_dir)

        node_restored.cleanup()

        self.restore_node(
            backup_dir, 'node', node_restored)

        node_restored.append_conf("postgresql.auto.conf", "archive_mode = 'off'")
        node_restored.append_conf("postgresql.auto.conf", "hot_standby = 'on'")
        node_restored.append_conf(
            "postgresql.auto.conf", "port = {0}".format(node_restored.port))

        node_restored.slow_start()

        while True:
            with open(node_restored.pg_log_file, 'r') as f:
                if 'selected new timeline ID' in f.read():
                    break

        with open(node_restored.pg_log_file, 'r') as f:
                print(f.read())

        pgdata_restored = self.pgdata_content(node_restored.data_dir)

        self.compare_pgdata(pgdata, pgdata_restored)

#        pg_xlogdump_path = self.get_bin_path('pg_xlogdump')

#        pg_xlogdump = self.run_binary(
#            [
#                pg_xlogdump_path, '-b',
#                os.path.join(backup_dir, 'wal', 'node', '000000010000000000000003'),
#                ' | ', 'grep', 'Btree', ''
#            ], async=False)

        if pg_xlogdump.returncode:
            self.assertFalse(
                True,
                'Failed to start pg_wal_dump: {0}'.format(
                    pg_receivexlog.communicate()[1]))

    # @unittest.skip("skip")
    def test_restore_chain(self):
        """
        make node, take full backup, take several
        ERROR delta backups, take valid delta backup,
        restore must be successfull
        """
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'max_wal_senders': '2'})

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

        # Take FULL
        self.backup_node(
            backup_dir, 'node', node)

        # Take DELTA
        self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # Take ERROR DELTA
        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type='delta', options=['--archive-timeout=0s'])
        except ProbackupException as e:
            pass

        # Take ERROR DELTA
        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type='delta', options=['--archive-timeout=0s'])
        except ProbackupException as e:
            pass

        # Take DELTA
        self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # Take ERROR DELTA
        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type='delta', options=['--archive-timeout=0s'])
        except ProbackupException as e:
            pass

        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[0]['status'],
            'Backup STATUS should be "OK"')

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

        self.assertEqual(
            'ERROR',
            self.show_pb(backup_dir, 'node')[2]['status'],
            'Backup STATUS should be "ERROR"')

        self.assertEqual(
            'ERROR',
            self.show_pb(backup_dir, 'node')[3]['status'],
            'Backup STATUS should be "ERROR"')

        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[4]['status'],
            'Backup STATUS should be "OK"')

        self.assertEqual(
            'ERROR',
            self.show_pb(backup_dir, 'node')[5]['status'],
            'Backup STATUS should be "ERROR"')

        node.cleanup()

        self.restore_node(backup_dir, 'node', node)

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_chain_with_corrupted_backup(self):
        """more complex test_restore_chain()"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'max_wal_senders': '2'})

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

        # Take FULL
        self.backup_node(
            backup_dir, 'node', node)

        # Take DELTA
        self.backup_node(
            backup_dir, 'node', node, backup_type='page')

        # Take ERROR DELTA
        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type='page', options=['--archive-timeout=0s'])
        except ProbackupException as e:
            pass

        # Take 1 DELTA
        self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # Take ERROR DELTA
        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type='delta', options=['--archive-timeout=0s'])
        except ProbackupException as e:
            pass

        # Take 2 DELTA
        self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # Take ERROR DELTA
        try:
            self.backup_node(
                backup_dir, 'node', node,
                backup_type='delta', options=['--archive-timeout=0s'])
        except ProbackupException as e:
            pass

        # Take 3 DELTA
        self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # Corrupted 4 DELTA
        corrupt_id = self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # ORPHAN 5 DELTA
        restore_target_id = self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # ORPHAN 6 DELTA
        self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # NEXT FULL BACKUP
        self.backup_node(
            backup_dir, 'node', node, backup_type='full')

        # Next Delta
        self.backup_node(
            backup_dir, 'node', node, backup_type='delta')

        # do corrupt 6 DELTA backup
        file = os.path.join(
            backup_dir, 'backups', 'node',
            corrupt_id, 'database', 'global', 'pg_control')

        file_new = os.path.join(backup_dir, 'pg_control')
        os.rename(file, file_new)

        # RESTORE BACKUP
        node.cleanup()

        try:
            self.restore_node(
                backup_dir, 'node', node, backup_id=restore_target_id)
            self.assertEqual(
                1, 0,
                "Expecting Error because restore backup is corrupted.\n "
                "Output: {0} \n CMD: {1}".format(
                    repr(self.output), self.cmd))
        except ProbackupException as e:
            self.assertIn(
                'ERROR: Backup {0} is orphan'.format(restore_target_id),
                e.message,
                '\n Unexpected Error Message: {0}\n CMD: {1}'.format(
                    repr(e.message), self.cmd))

        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[0]['status'],
            'Backup STATUS should be "OK"')

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

        self.assertEqual(
            'ERROR',
            self.show_pb(backup_dir, 'node')[2]['status'],
            'Backup STATUS should be "ERROR"')

        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[3]['status'],
            'Backup STATUS should be "OK"')

        self.assertEqual(
            'ERROR',
            self.show_pb(backup_dir, 'node')[4]['status'],
            'Backup STATUS should be "ERROR"')

        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[5]['status'],
            'Backup STATUS should be "OK"')

        self.assertEqual(
            'ERROR',
            self.show_pb(backup_dir, 'node')[6]['status'],
            'Backup STATUS should be "ERROR"')

        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[7]['status'],
            'Backup STATUS should be "OK"')

        # corruption victim
        self.assertEqual(
            'CORRUPT',
            self.show_pb(backup_dir, 'node')[8]['status'],
            'Backup STATUS should be "CORRUPT"')

        # orphaned child
        self.assertEqual(
            'ORPHAN',
            self.show_pb(backup_dir, 'node')[9]['status'],
            'Backup STATUS should be "ORPHAN"')

        # orphaned child
        self.assertEqual(
            'ORPHAN',
            self.show_pb(backup_dir, 'node')[10]['status'],
            'Backup STATUS should be "ORPHAN"')

        # next FULL
        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[11]['status'],
            'Backup STATUS should be "OK"')

        # next DELTA
        self.assertEqual(
            'OK',
            self.show_pb(backup_dir, 'node')[12]['status'],
            'Backup STATUS should be "OK"')

        node.cleanup()

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_backup_from_future(self):
        """more complex test_restore_chain()"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'],
            pg_options={
                'wal_level': 'replica',
                'max_wal_senders': '2'})

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

        # Take FULL
        self.backup_node(backup_dir, 'node', node)

        node.pgbench_init(scale=3)
        #pgbench = node.pgbench(options=['-T', '20', '-c', '2'])
        #pgbench.wait()

        # Take PAGE from future
        backup_id = self.backup_node(backup_dir, 'node', node, backup_type='page')

        with open(
                os.path.join(
                    backup_dir, 'backups', 'node',
                    backup_id, "backup.control"), "a") as conf:
            conf.write("start-time='{:%Y-%m-%d %H:%M:%S}'\n".format(
                datetime.now() + timedelta(days=3)))

        # rename directory
        new_id = self.show_pb(backup_dir, 'node')[1]['id']

        os.rename(
            os.path.join(backup_dir, 'backups', 'node', backup_id),
            os.path.join(backup_dir, 'backups', 'node', new_id))

        pgbench = node.pgbench(options=['-T', '3', '-c', '2', '--no-vacuum'])
        pgbench.wait()

        backup_id = self.backup_node(backup_dir, 'node', node, backup_type='page')
        pgdata = self.pgdata_content(node.data_dir)

        node.cleanup()
        self.restore_node(backup_dir, 'node', node, backup_id=backup_id)

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

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_target_immediate_stream(self):
        """more complex test_restore_chain()"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])

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

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

        # Take delta
        backup_id = self.backup_node(
            backup_dir, 'node', node,
            backup_type='delta', options=['--stream'])

        pgdata = self.pgdata_content(node.data_dir)

        recovery_conf = os.path.join(node.data_dir, 'recovery.conf')

        # restore page backup
        node.cleanup()
        self.restore_node(
            backup_dir, 'node', node, options=['--immediate'])

        # For stream backup with immediate recovery target there is no need to
        # create recovery.conf. Is it wise?
        self.assertFalse(
            os.path.isfile(recovery_conf))

        # restore page backup
        node.cleanup()
        self.restore_node(
            backup_dir, 'node', node, options=['--recovery-target=immediate'])

        # For stream backup with immediate recovery target there is no need to
        # create recovery.conf. Is it wise?
        self.assertFalse(
            os.path.isfile(recovery_conf))

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_target_immediate_archive(self):
        """more complex test_restore_chain()"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])

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

        # Take FULL
        self.backup_node(
            backup_dir, 'node', node)

        # Take delta
        backup_id = self.backup_node(
            backup_dir, 'node', node,
            backup_type='delta')

        pgdata = self.pgdata_content(node.data_dir)

        recovery_conf = os.path.join(node.data_dir, 'recovery.conf')

        # restore page backup
        node.cleanup()
        self.restore_node(
            backup_dir, 'node', node, options=['--immediate'])

        # For archive backup with immediate recovery target
        # recovery.conf is mandatory
        with open(recovery_conf, 'r') as f:
            self.assertIn("recovery_target = 'immediate'", f.read())

        # restore page backup
        node.cleanup()
        self.restore_node(
            backup_dir, 'node', node, options=['--recovery-target=immediate'])

        # For archive backup with immediate recovery target
        # recovery.conf is mandatory
        with open(recovery_conf, 'r') as f:
            self.assertIn("recovery_target = 'immediate'", f.read())

        # Clean after yourself
        self.del_test_dir(module_name, fname)

    # @unittest.skip("skip")
    def test_restore_target_latest_archive(self):
        """more complex test_restore_chain()"""
        fname = self.id().split('.')[3]
        node = self.make_simple_node(
            base_dir=os.path.join(module_name, fname, 'node'),
            set_replication=True,
            initdb_params=['--data-checksums'])

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

        # Take FULL
        self.backup_node(
            backup_dir, 'node', node)

        recovery_conf = os.path.join(node.data_dir, 'recovery.conf')

        # restore
        node.cleanup()
        self.restore_node(
            backup_dir, 'node', node)

        with open(recovery_conf, 'r') as f:
            print(f.read())

        hash_1 = hashlib.md5(
            open(recovery_conf, 'rb').read()).hexdigest()

        # restore
        node.cleanup()
        self.restore_node(
            backup_dir, 'node', node, options=['--recovery-target=latest'])

        with open(recovery_conf, 'r') as f:
            print(f.read())

        hash_2 = hashlib.md5(
            open(recovery_conf, 'rb').read()).hexdigest()

        self.assertEqual(hash_1, hash_2)

        # Clean after yourself
        self.del_test_dir(module_name, fname)