297 lines
10 KiB
Python
297 lines
10 KiB
Python
# 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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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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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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"--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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"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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def test_distributed_automatic_failover():
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safe_execute(shutil.rmtree, TEMP_DIR)
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interactive_mg_runner.start_all(MEMGRAPH_INSTANCES_DESCRIPTION)
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main_cursor = connect(host="localhost", port=7689).cursor()
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expected_data_on_main = [
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(
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"instance_1",
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"127.0.0.1:10001",
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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_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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def retrieve_data_show_replicas():
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return sorted(list(execute_and_fetch_all(main_cursor, "SHOW REPLICAS;")))
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mg_sleep_and_assert_collection(expected_data_on_main, retrieve_data_show_replicas)
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interactive_mg_runner.kill(MEMGRAPH_INSTANCES_DESCRIPTION, "instance_3")
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coord_cursor = connect(host="localhost", port=7692).cursor()
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def retrieve_data_show_repl_cluster():
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return sorted(list(execute_and_fetch_all(coord_cursor, "SHOW INSTANCES;")))
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expected_data_on_coord = [
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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(expected_data_on_coord, retrieve_data_show_repl_cluster)
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new_main_cursor = connect(host="localhost", port=7687).cursor()
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def retrieve_data_show_replicas():
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return sorted(list(execute_and_fetch_all(new_main_cursor, "SHOW REPLICAS;")))
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expected_data_on_new_main = [
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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": "invalid"},
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{"memgraph": {"ts": 0, "behind": 0, "status": "invalid"}},
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),
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]
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mg_sleep_and_assert_collection(expected_data_on_new_main, retrieve_data_show_replicas)
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interactive_mg_runner.start(MEMGRAPH_INSTANCES_DESCRIPTION, "instance_3")
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expected_data_on_new_main_old_alive = [
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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(expected_data_on_new_main_old_alive, retrieve_data_show_replicas)
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def test_distributed_automatic_failover_after_coord_dies():
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safe_execute(shutil.rmtree, TEMP_DIR)
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interactive_mg_runner.start_all(MEMGRAPH_INSTANCES_DESCRIPTION)
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interactive_mg_runner.kill(MEMGRAPH_INSTANCES_DESCRIPTION, "coordinator_3")
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interactive_mg_runner.kill(MEMGRAPH_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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new_main_cursor = connect(host="localhost", port=7687).cursor()
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def retrieve_data_show_replicas():
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return sorted(list(execute_and_fetch_all(new_main_cursor, "SHOW REPLICAS;")))
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expected_data_on_new_main = [
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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": "invalid"},
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{"memgraph": {"ts": 0, "behind": 0, "status": "invalid"}},
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),
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]
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mg_sleep_and_assert_collection(expected_data_on_new_main, retrieve_data_show_replicas)
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interactive_mg_runner.start(MEMGRAPH_INSTANCES_DESCRIPTION, "instance_3")
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expected_data_on_new_main_old_alive = [
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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(expected_data_on_new_main_old_alive, retrieve_data_show_replicas)
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if __name__ == "__main__":
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sys.exit(pytest.main([__file__, "-rA"]))
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