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PGPRO-1449: Add MERGE command: merge PAGE with FULL backup
This commit is contained in:
Arthur Zakirov
454
tests/merge.py
Normal file
454
tests/merge.py
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@@ -0,0 +1,454 @@
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# coding: utf-8
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import unittest
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import os
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from .helpers.ptrack_helpers import ProbackupTest
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module_name = "merge"
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class MergeTest(ProbackupTest, unittest.TestCase):
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def test_merge_full_page(self):
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"""
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Test MERGE command, it merges FULL backup with target PAGE backups
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"""
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fname = self.id().split(".")[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, "backup")
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# Initialize instance and backup directory
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node = self.make_simple_node(
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base_dir="{0}/{1}/node".format(module_name, fname),
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initdb_params=["--data-checksums"]
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)
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, "node", node)
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self.set_archiving(backup_dir, "node", node)
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node.start()
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# Do full backup
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self.backup_node(backup_dir, "node", node)
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show_backup = self.show_pb(backup_dir, "node")[0]
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self.assertEqual(show_backup["status"], "OK")
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self.assertEqual(show_backup["backup-mode"], "FULL")
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# Fill with data
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with node.connect() as conn:
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conn.execute("create table test (id int)")
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conn.execute(
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"insert into test select i from generate_series(1,10) s(i)")
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conn.commit()
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# Do first page backup
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self.backup_node(backup_dir, "node", node, backup_type="page")
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show_backup = self.show_pb(backup_dir, "node")[1]
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# sanity check
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self.assertEqual(show_backup["status"], "OK")
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self.assertEqual(show_backup["backup-mode"], "PAGE")
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# Fill with data
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with node.connect() as conn:
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conn.execute(
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"insert into test select i from generate_series(1,10) s(i)")
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count1 = conn.execute("select count(*) from test")
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conn.commit()
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# Do second page backup
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self.backup_node(backup_dir, "node", node, backup_type="page")
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show_backup = self.show_pb(backup_dir, "node")[2]
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page_id = show_backup["id"]
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if self.paranoia:
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pgdata = self.pgdata_content(node.data_dir)
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# sanity check
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self.assertEqual(show_backup["status"], "OK")
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self.assertEqual(show_backup["backup-mode"], "PAGE")
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# Merge all backups
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self.merge_backup(backup_dir, "node", page_id)
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show_backups = self.show_pb(backup_dir, "node")
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# sanity check
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self.assertEqual(len(show_backups), 1)
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self.assertEqual(show_backups[0]["status"], "OK")
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self.assertEqual(show_backups[0]["backup-mode"], "FULL")
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# Drop node and restore it
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node.cleanup()
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self.restore_node(backup_dir, 'node', node)
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# Check physical correctness
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if self.paranoia:
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pgdata_restored = self.pgdata_content(
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node.data_dir, ignore_ptrack=False)
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self.compare_pgdata(pgdata, pgdata_restored)
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node.slow_start()
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# Check restored node
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count2 = node.execute("postgres", "select count(*) from test")
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self.assertEqual(count1, count2)
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# Clean after yourself
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node.cleanup()
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self.del_test_dir(module_name, fname)
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def test_merge_compressed_backups(self):
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"""
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Test MERGE command with compressed backups
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"""
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fname = self.id().split(".")[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, "backup")
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# Initialize instance and backup directory
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node = self.make_simple_node(
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base_dir="{0}/{1}/node".format(module_name, fname),
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initdb_params=["--data-checksums"]
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)
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, "node", node)
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self.set_archiving(backup_dir, "node", node)
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node.start()
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# Do full compressed backup
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self.backup_node(backup_dir, "node", node, options=[
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'--compress-algorithm=zlib'])
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show_backup = self.show_pb(backup_dir, "node")[0]
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self.assertEqual(show_backup["status"], "OK")
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self.assertEqual(show_backup["backup-mode"], "FULL")
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# Fill with data
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with node.connect() as conn:
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conn.execute("create table test (id int)")
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conn.execute(
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"insert into test select i from generate_series(1,10) s(i)")
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count1 = conn.execute("select count(*) from test")
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conn.commit()
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# Do compressed page backup
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self.backup_node(
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backup_dir, "node", node, backup_type="page",
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options=['--compress-algorithm=zlib'])
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show_backup = self.show_pb(backup_dir, "node")[1]
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page_id = show_backup["id"]
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self.assertEqual(show_backup["status"], "OK")
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self.assertEqual(show_backup["backup-mode"], "PAGE")
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# Merge all backups
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self.merge_backup(backup_dir, "node", page_id)
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show_backups = self.show_pb(backup_dir, "node")
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self.assertEqual(len(show_backups), 1)
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self.assertEqual(show_backups[0]["status"], "OK")
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self.assertEqual(show_backups[0]["backup-mode"], "FULL")
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# Drop node and restore it
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node.cleanup()
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self.restore_node(backup_dir, 'node', node)
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node.slow_start()
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# Check restored node
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count2 = node.execute("postgres", "select count(*) from test")
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self.assertEqual(count1, count2)
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# Clean after yourself
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node.cleanup()
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self.del_test_dir(module_name, fname)
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# @unittest.skip("skip")
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def test_merge_tablespaces(self):
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"""
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Some test here
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"""
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def test_merge_page_truncate(self):
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"""
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make node, create table, take full backup,
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delete last 3 pages, vacuum relation,
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take page backup, merge full and page,
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restore last page backup and check data correctness
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"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir="{0}/{1}/node".format(module_name, fname),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={
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'wal_level': 'replica',
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'max_wal_senders': '2',
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'checkpoint_timeout': '300s',
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'autovacuum': 'off'
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}
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)
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node_restored = self.make_simple_node(
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base_dir="{0}/{1}/node_restored".format(module_name, fname))
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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node_restored.cleanup()
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node.start()
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self.create_tblspace_in_node(node, 'somedata')
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node.safe_psql(
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"postgres",
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"create sequence t_seq; "
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"create table t_heap tablespace somedata as select i as id, "
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"md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,1024) i;")
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node.safe_psql(
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"postgres",
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"vacuum t_heap")
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self.backup_node(backup_dir, 'node', node)
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node.safe_psql(
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"postgres",
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"delete from t_heap where ctid >= '(11,0)'")
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node.safe_psql(
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"postgres",
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"vacuum t_heap")
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self.backup_node(
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backup_dir, 'node', node, backup_type='page')
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if self.paranoia:
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pgdata = self.pgdata_content(node.data_dir)
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page_id = self.show_pb(backup_dir, "node")[1]["id"]
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self.merge_backup(backup_dir, "node", page_id)
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self.validate_pb(backup_dir)
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old_tablespace = self.get_tblspace_path(node, 'somedata')
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new_tablespace = self.get_tblspace_path(node_restored, 'somedata_new')
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self.restore_node(
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backup_dir, 'node', node_restored,
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options=[
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"-j", "4",
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"-T", "{0}={1}".format(old_tablespace, new_tablespace),
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"--recovery-target-action=promote"])
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# Physical comparison
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if self.paranoia:
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pgdata_restored = self.pgdata_content(node_restored.data_dir)
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self.compare_pgdata(pgdata, pgdata_restored)
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node_restored.append_conf(
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"postgresql.auto.conf", "port = {0}".format(node_restored.port))
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node_restored.slow_start()
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# Logical comparison
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result1 = node.safe_psql(
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"postgres",
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"select * from t_heap")
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result2 = node_restored.safe_psql(
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"postgres",
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"select * from t_heap")
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self.assertEqual(result1, result2)
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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def test_merge_delta_truncate(self):
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"""
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make node, create table, take full backup,
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delete last 3 pages, vacuum relation,
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take page backup, merge full and page,
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restore last page backup and check data correctness
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"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir="{0}/{1}/node".format(module_name, fname),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={
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'wal_level': 'replica',
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'max_wal_senders': '2',
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'checkpoint_timeout': '300s',
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'autovacuum': 'off'
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}
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)
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node_restored = self.make_simple_node(
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base_dir="{0}/{1}/node_restored".format(module_name, fname))
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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node_restored.cleanup()
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node.start()
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self.create_tblspace_in_node(node, 'somedata')
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node.safe_psql(
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"postgres",
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"create sequence t_seq; "
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"create table t_heap tablespace somedata as select i as id, "
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"md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,1024) i;")
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node.safe_psql(
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"postgres",
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"vacuum t_heap")
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self.backup_node(backup_dir, 'node', node)
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node.safe_psql(
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"postgres",
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"delete from t_heap where ctid >= '(11,0)'")
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node.safe_psql(
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"postgres",
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"vacuum t_heap")
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self.backup_node(
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backup_dir, 'node', node, backup_type='delta')
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if self.paranoia:
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pgdata = self.pgdata_content(node.data_dir)
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page_id = self.show_pb(backup_dir, "node")[1]["id"]
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self.merge_backup(backup_dir, "node", page_id)
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self.validate_pb(backup_dir)
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old_tablespace = self.get_tblspace_path(node, 'somedata')
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new_tablespace = self.get_tblspace_path(node_restored, 'somedata_new')
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self.restore_node(
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backup_dir, 'node', node_restored,
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options=[
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"-j", "4",
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"-T", "{0}={1}".format(old_tablespace, new_tablespace),
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"--recovery-target-action=promote"])
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# Physical comparison
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if self.paranoia:
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pgdata_restored = self.pgdata_content(node_restored.data_dir)
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self.compare_pgdata(pgdata, pgdata_restored)
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node_restored.append_conf(
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"postgresql.auto.conf", "port = {0}".format(node_restored.port))
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node_restored.slow_start()
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# Logical comparison
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result1 = node.safe_psql(
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"postgres",
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"select * from t_heap")
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result2 = node_restored.safe_psql(
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"postgres",
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"select * from t_heap")
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self.assertEqual(result1, result2)
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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def test_merge_ptrack_truncate(self):
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"""
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make node, create table, take full backup,
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delete last 3 pages, vacuum relation,
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take page backup, merge full and page,
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restore last page backup and check data correctness
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"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir="{0}/{1}/node".format(module_name, fname),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={
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'wal_level': 'replica',
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'max_wal_senders': '2',
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'checkpoint_timeout': '300s',
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'autovacuum': 'off'
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}
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)
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node_restored = self.make_simple_node(
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base_dir="{0}/{1}/node_restored".format(module_name, fname))
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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node_restored.cleanup()
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node.start()
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self.create_tblspace_in_node(node, 'somedata')
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node.safe_psql(
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"postgres",
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"create sequence t_seq; "
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"create table t_heap tablespace somedata as select i as id, "
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"md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,1024) i;")
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node.safe_psql(
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"postgres",
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"vacuum t_heap")
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self.backup_node(backup_dir, 'node', node)
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node.safe_psql(
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"postgres",
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"delete from t_heap where ctid >= '(11,0)'")
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node.safe_psql(
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"postgres",
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"vacuum t_heap")
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self.backup_node(
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backup_dir, 'node', node, backup_type='delta')
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if self.paranoia:
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pgdata = self.pgdata_content(node.data_dir)
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page_id = self.show_pb(backup_dir, "node")[1]["id"]
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self.merge_backup(backup_dir, "node", page_id)
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self.validate_pb(backup_dir)
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old_tablespace = self.get_tblspace_path(node, 'somedata')
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new_tablespace = self.get_tblspace_path(node_restored, 'somedata_new')
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self.restore_node(
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backup_dir, 'node', node_restored,
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options=[
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"-j", "4",
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"-T", "{0}={1}".format(old_tablespace, new_tablespace),
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"--recovery-target-action=promote"])
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# Physical comparison
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if self.paranoia:
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pgdata_restored = self.pgdata_content(node_restored.data_dir)
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self.compare_pgdata(pgdata, pgdata_restored)
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node_restored.append_conf(
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"postgresql.auto.conf", "port = {0}".format(node_restored.port))
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node_restored.slow_start()
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# Logical comparison
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result1 = node.safe_psql(
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"postgres",
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"select * from t_heap")
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result2 = node_restored.safe_psql(
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"postgres",
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"select * from t_heap")
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self.assertEqual(result1, result2)
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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