2024-02-13 16:49:28 +08:00
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# Copyright 2022 Memgraph Ltd.
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#
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# Use of this software is governed by the Business Source License
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# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
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# License, and you may not use this file except in compliance with the Business Source License.
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#
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# As of the Change Date specified in that file, in accordance with
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# the Business Source License, use of this software will be governed
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# by the Apache License, Version 2.0, included in the file
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# licenses/APL.txt.
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import os
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import shutil
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import sys
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import tempfile
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import interactive_mg_runner
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import pytest
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from common import connect, execute_and_fetch_all, safe_execute
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2024-03-04 15:24:18 +08:00
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from mg_utils import (
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mg_sleep_and_assert,
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mg_sleep_and_assert_any_function,
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mg_sleep_and_assert_collection,
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)
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2024-02-13 16:49:28 +08:00
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interactive_mg_runner.SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
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interactive_mg_runner.PROJECT_DIR = os.path.normpath(
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os.path.join(interactive_mg_runner.SCRIPT_DIR, "..", "..", "..", "..")
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)
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interactive_mg_runner.BUILD_DIR = os.path.normpath(os.path.join(interactive_mg_runner.PROJECT_DIR, "build"))
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interactive_mg_runner.MEMGRAPH_BINARY = os.path.normpath(os.path.join(interactive_mg_runner.BUILD_DIR, "memgraph"))
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TEMP_DIR = tempfile.TemporaryDirectory().name
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MEMGRAPH_INSTANCES_DESCRIPTION = {
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"instance_1": {
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"args": [
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2024-02-20 00:28:15 +08:00
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"--experimental-enabled=high-availability",
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2024-02-13 16:49:28 +08:00
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"--bolt-port",
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"7687",
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"--log-level",
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"TRACE",
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"--coordinator-server-port",
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"10011",
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],
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"log_file": "instance_1.log",
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"data_directory": f"{TEMP_DIR}/instance_1",
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"setup_queries": [],
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},
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"instance_2": {
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"args": [
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2024-02-20 00:28:15 +08:00
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"--experimental-enabled=high-availability",
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2024-02-13 16:49:28 +08:00
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"--bolt-port",
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"7688",
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"--log-level",
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"TRACE",
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"--coordinator-server-port",
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"10012",
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],
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"log_file": "instance_2.log",
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"data_directory": f"{TEMP_DIR}/instance_2",
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"setup_queries": [],
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},
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"instance_3": {
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"args": [
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2024-02-20 00:28:15 +08:00
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"--experimental-enabled=high-availability",
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2024-02-13 16:49:28 +08:00
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"--bolt-port",
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"7689",
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"--log-level",
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"TRACE",
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"--coordinator-server-port",
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"10013",
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],
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"log_file": "instance_3.log",
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"data_directory": f"{TEMP_DIR}/instance_3",
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"setup_queries": [],
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},
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"coordinator_1": {
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"args": [
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2024-02-20 00:28:15 +08:00
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"--experimental-enabled=high-availability",
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2024-02-13 16:49:28 +08:00
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"--bolt-port",
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"7690",
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"--log-level=TRACE",
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"--raft-server-id=1",
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"--raft-server-port=10111",
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],
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"log_file": "coordinator1.log",
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"setup_queries": [],
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},
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"coordinator_2": {
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"args": [
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2024-02-20 00:28:15 +08:00
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"--experimental-enabled=high-availability",
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2024-02-13 16:49:28 +08:00
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"--bolt-port",
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"7691",
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"--log-level=TRACE",
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"--raft-server-id=2",
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"--raft-server-port=10112",
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],
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"log_file": "coordinator2.log",
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"setup_queries": [],
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},
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"coordinator_3": {
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"args": [
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2024-02-20 00:28:15 +08:00
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"--experimental-enabled=high-availability",
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2024-02-13 16:49:28 +08:00
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"--bolt-port",
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"7692",
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"--log-level=TRACE",
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"--raft-server-id=3",
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"--raft-server-port=10113",
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],
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"log_file": "coordinator3.log",
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"setup_queries": [
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"ADD COORDINATOR 1 ON '127.0.0.1:10111'",
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"ADD COORDINATOR 2 ON '127.0.0.1:10112'",
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"REGISTER INSTANCE instance_1 ON '127.0.0.1:10011' WITH '127.0.0.1:10001'",
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"REGISTER INSTANCE instance_2 ON '127.0.0.1:10012' WITH '127.0.0.1:10002'",
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"REGISTER INSTANCE instance_3 ON '127.0.0.1:10013' WITH '127.0.0.1:10003'",
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"SET INSTANCE instance_3 TO MAIN",
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],
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},
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}
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2024-03-08 01:40:32 +08:00
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def get_instances_description_no_setup():
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return {
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"instance_1": {
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"args": [
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"--experimental-enabled=high-availability",
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"--bolt-port",
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"7687",
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"--log-level",
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"TRACE",
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"--coordinator-server-port",
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"10011",
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],
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"log_file": "instance_1.log",
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"data_directory": f"{TEMP_DIR}/instance_1",
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"setup_queries": [],
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},
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"instance_2": {
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"args": [
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"--experimental-enabled=high-availability",
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"--bolt-port",
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"7688",
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"--log-level",
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"TRACE",
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"--coordinator-server-port",
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"10012",
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],
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"log_file": "instance_2.log",
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"data_directory": f"{TEMP_DIR}/instance_2",
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"setup_queries": [],
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},
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"instance_3": {
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"args": [
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"--experimental-enabled=high-availability",
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"--bolt-port",
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"7689",
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"--log-level",
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"TRACE",
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"--coordinator-server-port",
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"10013",
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],
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"log_file": "instance_3.log",
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"data_directory": f"{TEMP_DIR}/instance_3",
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"setup_queries": [],
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},
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"coordinator_1": {
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"args": [
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"--experimental-enabled=high-availability",
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"--bolt-port",
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"7690",
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"--log-level=TRACE",
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"--raft-server-id=1",
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"--raft-server-port=10111",
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],
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"log_file": "coordinator1.log",
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"setup_queries": [],
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},
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"coordinator_2": {
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"args": [
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"--experimental-enabled=high-availability",
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"--bolt-port",
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"7691",
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"--log-level=TRACE",
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"--raft-server-id=2",
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"--raft-server-port=10112",
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],
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"log_file": "coordinator2.log",
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"setup_queries": [],
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},
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"coordinator_3": {
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"args": [
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"--experimental-enabled=high-availability",
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"--bolt-port",
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"7692",
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"--log-level=TRACE",
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"--raft-server-id=3",
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"--raft-server-port=10113",
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],
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"log_file": "coordinator3.log",
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"setup_queries": [],
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},
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}
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def test_old_main_comes_back_on_new_leader_as_replica():
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# 1. Start all instances.
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# 2. Kill the main instance
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# 3. Kill the leader
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# 4. Start the old main instance
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# 5. Run SHOW INSTANCES on the new leader and check that the old main instance is registered as a replica
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# 6. Start again previous leader
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safe_execute(shutil.rmtree, TEMP_DIR)
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inner_instances_description = get_instances_description_no_setup()
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interactive_mg_runner.start_all(inner_instances_description)
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setup_queries = [
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"ADD COORDINATOR 1 ON '127.0.0.1:10111'",
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"ADD COORDINATOR 2 ON '127.0.0.1:10112'",
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"REGISTER INSTANCE instance_1 ON '127.0.0.1:10011' WITH '127.0.0.1:10001'",
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"REGISTER INSTANCE instance_2 ON '127.0.0.1:10012' WITH '127.0.0.1:10002'",
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"REGISTER INSTANCE instance_3 ON '127.0.0.1:10013' WITH '127.0.0.1:10003'",
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"SET INSTANCE instance_3 TO MAIN",
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]
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coord_cursor_3 = connect(host="localhost", port=7692).cursor()
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for query in setup_queries:
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execute_and_fetch_all(coord_cursor_3, query)
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interactive_mg_runner.kill(inner_instances_description, "coordinator_3")
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interactive_mg_runner.kill(inner_instances_description, "instance_3")
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coord_cursor_1 = connect(host="localhost", port=7690).cursor()
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def show_instances_coord1():
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return sorted(list(execute_and_fetch_all(coord_cursor_1, "SHOW INSTANCES;")))
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coord_cursor_2 = connect(host="localhost", port=7691).cursor()
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def show_instances_coord2():
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return sorted(list(execute_and_fetch_all(coord_cursor_2, "SHOW INSTANCES;")))
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leader_data = [
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("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
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("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
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("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
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("instance_1", "", "127.0.0.1:10011", "up", "main"),
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("instance_2", "", "127.0.0.1:10012", "up", "replica"),
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("instance_3", "", "127.0.0.1:10013", "down", "unknown"),
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]
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mg_sleep_and_assert_any_function(leader_data, [show_instances_coord1, show_instances_coord2])
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follower_data = [
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("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
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("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
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("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
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("instance_1", "", "", "unknown", "main"),
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("instance_2", "", "", "unknown", "replica"),
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("instance_3", "", "", "unknown", "main"), # TODO: (andi) Will become unknown.
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]
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mg_sleep_and_assert_any_function(leader_data, [show_instances_coord1, show_instances_coord2])
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mg_sleep_and_assert_any_function(follower_data, [show_instances_coord1, show_instances_coord2])
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interactive_mg_runner.start(inner_instances_description, "instance_3")
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leader_data = [
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("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
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("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
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("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
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("instance_1", "", "127.0.0.1:10011", "up", "main"),
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("instance_2", "", "127.0.0.1:10012", "up", "replica"),
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("instance_3", "", "127.0.0.1:10013", "up", "replica"),
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]
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mg_sleep_and_assert_any_function(leader_data, [show_instances_coord1, show_instances_coord2])
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new_main_cursor = connect(host="localhost", port=7687).cursor()
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def show_replicas():
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return sorted(list(execute_and_fetch_all(new_main_cursor, "SHOW REPLICAS;")))
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replicas = [
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(
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"instance_2",
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"127.0.0.1:10002",
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"sync",
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{"ts": 0, "behind": None, "status": "ready"},
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{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
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),
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(
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"instance_3",
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"127.0.0.1:10003",
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"sync",
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{"ts": 0, "behind": None, "status": "ready"},
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{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
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),
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]
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mg_sleep_and_assert_collection(replicas, show_replicas)
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execute_and_fetch_all(new_main_cursor, "CREATE (n:Node {name: 'node'})")
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replica_2_cursor = connect(host="localhost", port=7688).cursor()
|
|
|
|
|
|
|
|
|
|
def get_vertex_count():
|
|
|
|
|
return execute_and_fetch_all(replica_2_cursor, "MATCH (n) RETURN count(n)")[0][0]
|
|
|
|
|
|
|
|
|
|
mg_sleep_and_assert(1, get_vertex_count)
|
|
|
|
|
|
|
|
|
|
replica_3_cursor = connect(host="localhost", port=7689).cursor()
|
|
|
|
|
|
|
|
|
|
def get_vertex_count():
|
|
|
|
|
return execute_and_fetch_all(replica_3_cursor, "MATCH (n) RETURN count(n)")[0][0]
|
|
|
|
|
|
|
|
|
|
mg_sleep_and_assert(1, get_vertex_count)
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.start(inner_instances_description, "coordinator_3")
|
|
|
|
|
|
|
|
|
|
|
2024-02-13 16:49:28 +08:00
|
|
|
def test_distributed_automatic_failover():
|
|
|
|
|
safe_execute(shutil.rmtree, TEMP_DIR)
|
|
|
|
|
interactive_mg_runner.start_all(MEMGRAPH_INSTANCES_DESCRIPTION)
|
|
|
|
|
|
|
|
|
|
main_cursor = connect(host="localhost", port=7689).cursor()
|
|
|
|
|
expected_data_on_main = [
|
2024-02-27 03:05:49 +08:00
|
|
|
(
|
|
|
|
|
"instance_1",
|
|
|
|
|
"127.0.0.1:10001",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
(
|
|
|
|
|
"instance_2",
|
|
|
|
|
"127.0.0.1:10002",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
2024-02-13 16:49:28 +08:00
|
|
|
]
|
2024-03-04 15:24:18 +08:00
|
|
|
|
|
|
|
|
def retrieve_data_show_replicas():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(main_cursor, "SHOW REPLICAS;")))
|
|
|
|
|
|
|
|
|
|
mg_sleep_and_assert_collection(expected_data_on_main, retrieve_data_show_replicas)
|
2024-02-13 16:49:28 +08:00
|
|
|
|
|
|
|
|
interactive_mg_runner.kill(MEMGRAPH_INSTANCES_DESCRIPTION, "instance_3")
|
|
|
|
|
|
|
|
|
|
coord_cursor = connect(host="localhost", port=7692).cursor()
|
|
|
|
|
|
|
|
|
|
def retrieve_data_show_repl_cluster():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(coord_cursor, "SHOW INSTANCES;")))
|
|
|
|
|
|
|
|
|
|
expected_data_on_coord = [
|
2024-03-04 15:24:18 +08:00
|
|
|
("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
|
|
|
|
|
("instance_1", "", "127.0.0.1:10011", "up", "main"),
|
|
|
|
|
("instance_2", "", "127.0.0.1:10012", "up", "replica"),
|
|
|
|
|
("instance_3", "", "127.0.0.1:10013", "down", "unknown"),
|
2024-02-13 16:49:28 +08:00
|
|
|
]
|
2024-03-08 01:40:32 +08:00
|
|
|
|
2024-02-13 16:49:28 +08:00
|
|
|
mg_sleep_and_assert(expected_data_on_coord, retrieve_data_show_repl_cluster)
|
|
|
|
|
|
|
|
|
|
new_main_cursor = connect(host="localhost", port=7687).cursor()
|
|
|
|
|
|
2024-03-04 15:24:18 +08:00
|
|
|
def retrieve_data_show_replicas():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(new_main_cursor, "SHOW REPLICAS;")))
|
|
|
|
|
|
|
|
|
|
expected_data_on_new_main = [
|
|
|
|
|
(
|
|
|
|
|
"instance_2",
|
|
|
|
|
"127.0.0.1:10002",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
(
|
|
|
|
|
"instance_3",
|
|
|
|
|
"127.0.0.1:10003",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "invalid"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "invalid"}},
|
|
|
|
|
),
|
|
|
|
|
]
|
|
|
|
|
mg_sleep_and_assert_collection(expected_data_on_new_main, retrieve_data_show_replicas)
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.start(MEMGRAPH_INSTANCES_DESCRIPTION, "instance_3")
|
|
|
|
|
expected_data_on_new_main_old_alive = [
|
|
|
|
|
(
|
|
|
|
|
"instance_2",
|
|
|
|
|
"127.0.0.1:10002",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
(
|
|
|
|
|
"instance_3",
|
|
|
|
|
"127.0.0.1:10003",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
]
|
|
|
|
|
|
|
|
|
|
mg_sleep_and_assert_collection(expected_data_on_new_main_old_alive, retrieve_data_show_replicas)
|
|
|
|
|
|
|
|
|
|
|
2024-03-08 01:40:32 +08:00
|
|
|
def test_distributed_automatic_failover_with_leadership_change():
|
2024-03-04 15:24:18 +08:00
|
|
|
safe_execute(shutil.rmtree, TEMP_DIR)
|
2024-03-08 01:40:32 +08:00
|
|
|
inner_instances_description = get_instances_description_no_setup()
|
2024-03-04 15:24:18 +08:00
|
|
|
|
2024-03-08 01:40:32 +08:00
|
|
|
interactive_mg_runner.start_all(inner_instances_description)
|
2024-03-04 15:24:18 +08:00
|
|
|
|
2024-03-08 01:40:32 +08:00
|
|
|
setup_queries = [
|
|
|
|
|
"ADD COORDINATOR 1 ON '127.0.0.1:10111'",
|
|
|
|
|
"ADD COORDINATOR 2 ON '127.0.0.1:10112'",
|
|
|
|
|
"REGISTER INSTANCE instance_1 ON '127.0.0.1:10011' WITH '127.0.0.1:10001'",
|
|
|
|
|
"REGISTER INSTANCE instance_2 ON '127.0.0.1:10012' WITH '127.0.0.1:10002'",
|
|
|
|
|
"REGISTER INSTANCE instance_3 ON '127.0.0.1:10013' WITH '127.0.0.1:10003'",
|
|
|
|
|
"SET INSTANCE instance_3 TO MAIN",
|
|
|
|
|
]
|
|
|
|
|
coord_cursor_3 = connect(host="localhost", port=7692).cursor()
|
|
|
|
|
for query in setup_queries:
|
|
|
|
|
execute_and_fetch_all(coord_cursor_3, query)
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.kill(inner_instances_description, "coordinator_3")
|
|
|
|
|
interactive_mg_runner.kill(inner_instances_description, "instance_3")
|
2024-03-04 15:24:18 +08:00
|
|
|
|
|
|
|
|
coord_cursor_1 = connect(host="localhost", port=7690).cursor()
|
|
|
|
|
|
|
|
|
|
def show_instances_coord1():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(coord_cursor_1, "SHOW INSTANCES;")))
|
|
|
|
|
|
|
|
|
|
coord_cursor_2 = connect(host="localhost", port=7691).cursor()
|
|
|
|
|
|
|
|
|
|
def show_instances_coord2():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(coord_cursor_2, "SHOW INSTANCES;")))
|
|
|
|
|
|
|
|
|
|
leader_data = [
|
|
|
|
|
("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
|
|
|
|
|
("instance_1", "", "127.0.0.1:10011", "up", "main"),
|
|
|
|
|
("instance_2", "", "127.0.0.1:10012", "up", "replica"),
|
|
|
|
|
("instance_3", "", "127.0.0.1:10013", "down", "unknown"),
|
|
|
|
|
]
|
|
|
|
|
mg_sleep_and_assert_any_function(leader_data, [show_instances_coord1, show_instances_coord2])
|
|
|
|
|
|
|
|
|
|
follower_data = [
|
|
|
|
|
("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
|
|
|
|
|
("instance_1", "", "", "unknown", "main"),
|
|
|
|
|
("instance_2", "", "", "unknown", "replica"),
|
|
|
|
|
("instance_3", "", "", "unknown", "main"), # TODO: (andi) Will become unknown.
|
|
|
|
|
]
|
|
|
|
|
mg_sleep_and_assert_any_function(leader_data, [show_instances_coord1, show_instances_coord2])
|
|
|
|
|
mg_sleep_and_assert_any_function(follower_data, [show_instances_coord1, show_instances_coord2])
|
|
|
|
|
|
|
|
|
|
new_main_cursor = connect(host="localhost", port=7687).cursor()
|
|
|
|
|
|
2024-02-13 16:49:28 +08:00
|
|
|
def retrieve_data_show_replicas():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(new_main_cursor, "SHOW REPLICAS;")))
|
|
|
|
|
|
|
|
|
|
expected_data_on_new_main = [
|
2024-02-27 03:05:49 +08:00
|
|
|
(
|
|
|
|
|
"instance_2",
|
|
|
|
|
"127.0.0.1:10002",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
(
|
|
|
|
|
"instance_3",
|
|
|
|
|
"127.0.0.1:10003",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "invalid"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "invalid"}},
|
|
|
|
|
),
|
2024-02-13 16:49:28 +08:00
|
|
|
]
|
2024-02-27 03:05:49 +08:00
|
|
|
mg_sleep_and_assert_collection(expected_data_on_new_main, retrieve_data_show_replicas)
|
2024-02-13 16:49:28 +08:00
|
|
|
|
2024-03-08 01:40:32 +08:00
|
|
|
interactive_mg_runner.start(inner_instances_description, "instance_3")
|
2024-02-13 16:49:28 +08:00
|
|
|
expected_data_on_new_main_old_alive = [
|
2024-02-27 03:05:49 +08:00
|
|
|
(
|
|
|
|
|
"instance_2",
|
|
|
|
|
"127.0.0.1:10002",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
(
|
|
|
|
|
"instance_3",
|
|
|
|
|
"127.0.0.1:10003",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
2024-02-13 16:49:28 +08:00
|
|
|
]
|
|
|
|
|
|
2024-02-27 03:05:49 +08:00
|
|
|
mg_sleep_and_assert_collection(expected_data_on_new_main_old_alive, retrieve_data_show_replicas)
|
2024-02-13 16:49:28 +08:00
|
|
|
|
2024-03-08 01:40:32 +08:00
|
|
|
interactive_mg_runner.start(inner_instances_description, "coordinator_3")
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def test_no_leader_after_leader_and_follower_die():
|
|
|
|
|
# 1. Register all but one replication instnce on the first leader.
|
|
|
|
|
# 2. Kill the leader and a follower.
|
|
|
|
|
# 3. Check that the remaining follower is not promoted to leader by trying to register remaining replication instance.
|
|
|
|
|
|
|
|
|
|
safe_execute(shutil.rmtree, TEMP_DIR)
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.start_all(MEMGRAPH_INSTANCES_DESCRIPTION)
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.kill(MEMGRAPH_INSTANCES_DESCRIPTION, "coordinator_3")
|
|
|
|
|
interactive_mg_runner.kill(MEMGRAPH_INSTANCES_DESCRIPTION, "coordinator_2")
|
|
|
|
|
|
|
|
|
|
coord_cursor_1 = connect(host="localhost", port=7690).cursor()
|
|
|
|
|
|
|
|
|
|
with pytest.raises(Exception) as e:
|
|
|
|
|
execute_and_fetch_all(coord_cursor_1, "REGISTER INSTANCE instance_1 ON '127.0.0.1:10011' WITH '127.0.0.10001'")
|
|
|
|
|
assert str(e) == "Couldn't register replica instance since coordinator is not a leader!"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def test_old_main_comes_back_on_new_leader_as_main():
|
|
|
|
|
# 1. Start all instances.
|
|
|
|
|
# 2. Kill all instances
|
|
|
|
|
# 3. Kill the leader
|
|
|
|
|
# 4. Start the old main instance
|
|
|
|
|
# 5. Run SHOW INSTANCES on the new leader and check that the old main instance is main once again
|
|
|
|
|
|
|
|
|
|
inner_memgraph_instances = get_instances_description_no_setup()
|
|
|
|
|
interactive_mg_runner.start_all(inner_memgraph_instances)
|
|
|
|
|
|
|
|
|
|
coord_cursor_3 = connect(host="localhost", port=7692).cursor()
|
|
|
|
|
|
|
|
|
|
setup_queries = [
|
|
|
|
|
"ADD COORDINATOR 1 ON '127.0.0.1:10111'",
|
|
|
|
|
"ADD COORDINATOR 2 ON '127.0.0.1:10112'",
|
|
|
|
|
"REGISTER INSTANCE instance_1 ON '127.0.0.1:10011' WITH '127.0.0.1:10001'",
|
|
|
|
|
"REGISTER INSTANCE instance_2 ON '127.0.0.1:10012' WITH '127.0.0.1:10002'",
|
|
|
|
|
"REGISTER INSTANCE instance_3 ON '127.0.0.1:10013' WITH '127.0.0.1:10003'",
|
|
|
|
|
"SET INSTANCE instance_3 TO MAIN",
|
|
|
|
|
]
|
|
|
|
|
|
|
|
|
|
for query in setup_queries:
|
|
|
|
|
execute_and_fetch_all(coord_cursor_3, query)
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.kill(inner_memgraph_instances, "instance_1")
|
|
|
|
|
interactive_mg_runner.kill(inner_memgraph_instances, "instance_2")
|
|
|
|
|
interactive_mg_runner.kill(inner_memgraph_instances, "instance_3")
|
|
|
|
|
interactive_mg_runner.kill(inner_memgraph_instances, "coordinator_3")
|
|
|
|
|
|
|
|
|
|
coord_cursor_1 = connect(host="localhost", port=7690).cursor()
|
|
|
|
|
|
|
|
|
|
def show_instances_coord1():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(coord_cursor_1, "SHOW INSTANCES;")))
|
|
|
|
|
|
|
|
|
|
coord_cursor_2 = connect(host="localhost", port=7691).cursor()
|
|
|
|
|
|
|
|
|
|
def show_instances_coord2():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(coord_cursor_2, "SHOW INSTANCES;")))
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.start(inner_memgraph_instances, "instance_3")
|
|
|
|
|
|
|
|
|
|
leader_data = [
|
|
|
|
|
("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
|
|
|
|
|
("instance_1", "", "127.0.0.1:10011", "down", "unknown"),
|
|
|
|
|
("instance_2", "", "127.0.0.1:10012", "down", "unknown"),
|
|
|
|
|
("instance_3", "", "127.0.0.1:10013", "up", "main"),
|
|
|
|
|
]
|
|
|
|
|
|
|
|
|
|
follower_data = [
|
|
|
|
|
("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
|
|
|
|
|
("instance_1", "", "", "unknown", "replica"),
|
|
|
|
|
("instance_2", "", "", "unknown", "replica"),
|
|
|
|
|
("instance_3", "", "", "unknown", "main"),
|
|
|
|
|
]
|
|
|
|
|
mg_sleep_and_assert_any_function(leader_data, [show_instances_coord1, show_instances_coord2])
|
|
|
|
|
mg_sleep_and_assert_any_function(follower_data, [show_instances_coord1, show_instances_coord2])
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.start(inner_memgraph_instances, "instance_1")
|
|
|
|
|
interactive_mg_runner.start(inner_memgraph_instances, "instance_2")
|
|
|
|
|
|
|
|
|
|
new_main_cursor = connect(host="localhost", port=7689).cursor()
|
|
|
|
|
|
|
|
|
|
def show_replicas():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(new_main_cursor, "SHOW REPLICAS;")))
|
|
|
|
|
|
|
|
|
|
replicas = [
|
|
|
|
|
(
|
|
|
|
|
"instance_1",
|
|
|
|
|
"127.0.0.1:10001",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
(
|
|
|
|
|
"instance_2",
|
|
|
|
|
"127.0.0.1:10002",
|
|
|
|
|
"sync",
|
|
|
|
|
{"ts": 0, "behind": None, "status": "ready"},
|
|
|
|
|
{"memgraph": {"ts": 0, "behind": 0, "status": "ready"}},
|
|
|
|
|
),
|
|
|
|
|
]
|
|
|
|
|
mg_sleep_and_assert_collection(replicas, show_replicas)
|
|
|
|
|
|
|
|
|
|
execute_and_fetch_all(new_main_cursor, "CREATE (n:Node {name: 'node'})")
|
|
|
|
|
|
|
|
|
|
replica_1_cursor = connect(host="localhost", port=7687).cursor()
|
|
|
|
|
assert len(execute_and_fetch_all(replica_1_cursor, "MATCH (n) RETURN n;")) == 1
|
|
|
|
|
|
|
|
|
|
replica_2_cursor = connect(host="localhost", port=7688).cursor()
|
|
|
|
|
assert len(execute_and_fetch_all(replica_2_cursor, "MATCH (n) RETURN n;")) == 1
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.start(inner_memgraph_instances, "coordinator_3")
|
|
|
|
|
|
2024-02-13 16:49:28 +08:00
|
|
|
|
2024-03-07 19:10:33 +08:00
|
|
|
def test_registering_4_coords():
|
|
|
|
|
# Goal of this test is to assure registering of multiple coordinators in row works
|
|
|
|
|
INSTANCES_DESCRIPTION = {
|
|
|
|
|
"instance_1": {
|
|
|
|
|
"args": [
|
|
|
|
|
"--experimental-enabled=high-availability",
|
|
|
|
|
"--bolt-port",
|
|
|
|
|
"7687",
|
|
|
|
|
"--log-level",
|
|
|
|
|
"TRACE",
|
|
|
|
|
"--coordinator-server-port",
|
|
|
|
|
"10011",
|
|
|
|
|
],
|
|
|
|
|
"log_file": "instance_1.log",
|
|
|
|
|
"data_directory": f"{TEMP_DIR}/instance_1",
|
|
|
|
|
"setup_queries": [],
|
|
|
|
|
},
|
|
|
|
|
"instance_2": {
|
|
|
|
|
"args": [
|
|
|
|
|
"--experimental-enabled=high-availability",
|
|
|
|
|
"--bolt-port",
|
|
|
|
|
"7688",
|
|
|
|
|
"--log-level",
|
|
|
|
|
"TRACE",
|
|
|
|
|
"--coordinator-server-port",
|
|
|
|
|
"10012",
|
|
|
|
|
],
|
|
|
|
|
"log_file": "instance_2.log",
|
|
|
|
|
"data_directory": f"{TEMP_DIR}/instance_2",
|
|
|
|
|
"setup_queries": [],
|
|
|
|
|
},
|
|
|
|
|
"instance_3": {
|
|
|
|
|
"args": [
|
|
|
|
|
"--experimental-enabled=high-availability",
|
|
|
|
|
"--bolt-port",
|
|
|
|
|
"7689",
|
|
|
|
|
"--log-level",
|
|
|
|
|
"TRACE",
|
|
|
|
|
"--coordinator-server-port",
|
|
|
|
|
"10013",
|
|
|
|
|
],
|
|
|
|
|
"log_file": "instance_3.log",
|
|
|
|
|
"data_directory": f"{TEMP_DIR}/instance_3",
|
|
|
|
|
"setup_queries": [],
|
|
|
|
|
},
|
|
|
|
|
"coordinator_1": {
|
|
|
|
|
"args": [
|
|
|
|
|
"--experimental-enabled=high-availability",
|
|
|
|
|
"--bolt-port",
|
|
|
|
|
"7690",
|
|
|
|
|
"--log-level=TRACE",
|
|
|
|
|
"--raft-server-id=1",
|
|
|
|
|
"--raft-server-port=10111",
|
|
|
|
|
],
|
|
|
|
|
"log_file": "coordinator1.log",
|
|
|
|
|
"setup_queries": [],
|
|
|
|
|
},
|
|
|
|
|
"coordinator_2": {
|
|
|
|
|
"args": [
|
|
|
|
|
"--experimental-enabled=high-availability",
|
|
|
|
|
"--bolt-port",
|
|
|
|
|
"7691",
|
|
|
|
|
"--log-level=TRACE",
|
|
|
|
|
"--raft-server-id=2",
|
|
|
|
|
"--raft-server-port=10112",
|
|
|
|
|
],
|
|
|
|
|
"log_file": "coordinator2.log",
|
|
|
|
|
"setup_queries": [],
|
|
|
|
|
},
|
|
|
|
|
"coordinator_3": {
|
|
|
|
|
"args": [
|
|
|
|
|
"--experimental-enabled=high-availability",
|
|
|
|
|
"--bolt-port",
|
|
|
|
|
"7692",
|
|
|
|
|
"--log-level=TRACE",
|
|
|
|
|
"--raft-server-id=3",
|
|
|
|
|
"--raft-server-port=10113",
|
|
|
|
|
],
|
|
|
|
|
"log_file": "coordinator3.log",
|
|
|
|
|
"setup_queries": [],
|
|
|
|
|
},
|
|
|
|
|
"coordinator_4": {
|
|
|
|
|
"args": [
|
|
|
|
|
"--experimental-enabled=high-availability",
|
|
|
|
|
"--bolt-port",
|
|
|
|
|
"7693",
|
|
|
|
|
"--log-level=TRACE",
|
|
|
|
|
"--raft-server-id=4",
|
|
|
|
|
"--raft-server-port=10114",
|
|
|
|
|
],
|
|
|
|
|
"log_file": "coordinator4.log",
|
|
|
|
|
"setup_queries": [
|
|
|
|
|
"ADD COORDINATOR 1 ON '127.0.0.1:10111';",
|
|
|
|
|
"ADD COORDINATOR 2 ON '127.0.0.1:10112';",
|
|
|
|
|
"ADD COORDINATOR 3 ON '127.0.0.1:10113';",
|
|
|
|
|
"REGISTER INSTANCE instance_1 ON '127.0.0.1:10011' WITH '127.0.0.1:10001'",
|
|
|
|
|
"REGISTER INSTANCE instance_2 ON '127.0.0.1:10012' WITH '127.0.0.1:10002'",
|
|
|
|
|
"REGISTER INSTANCE instance_3 ON '127.0.0.1:10013' WITH '127.0.0.1:10003'",
|
|
|
|
|
"SET INSTANCE instance_3 TO MAIN",
|
|
|
|
|
],
|
|
|
|
|
},
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
interactive_mg_runner.start_all(INSTANCES_DESCRIPTION)
|
|
|
|
|
|
|
|
|
|
coord_cursor = connect(host="localhost", port=7693).cursor()
|
|
|
|
|
|
|
|
|
|
def retrieve_data_show_repl_cluster():
|
|
|
|
|
return sorted(list(execute_and_fetch_all(coord_cursor, "SHOW INSTANCES;")))
|
|
|
|
|
|
|
|
|
|
expected_data_on_coord = [
|
|
|
|
|
("coordinator_1", "127.0.0.1:10111", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_2", "127.0.0.1:10112", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_3", "127.0.0.1:10113", "", "unknown", "coordinator"),
|
|
|
|
|
("coordinator_4", "127.0.0.1:10114", "", "unknown", "coordinator"),
|
|
|
|
|
("instance_1", "", "127.0.0.1:10011", "up", "replica"),
|
|
|
|
|
("instance_2", "", "127.0.0.1:10012", "up", "replica"),
|
|
|
|
|
("instance_3", "", "127.0.0.1:10013", "up", "main"),
|
|
|
|
|
]
|
|
|
|
|
mg_sleep_and_assert(expected_data_on_coord, retrieve_data_show_repl_cluster)
|
|
|
|
|
|
|
|
|
|
|
2024-02-13 16:49:28 +08:00
|
|
|
if __name__ == "__main__":
|
|
|
|
|
sys.exit(pytest.main([__file__, "-rA"]))
|
