ClickHouse/tests/integration/test_quorum_inserts/test.py

import time

import pytest

from helpers.test_tools import TSV
from helpers.cluster import ClickHouseCluster

cluster = ClickHouseCluster(__file__)

zero = cluster.add_instance("zero",
                            config_dir="configs",
                            macros={"cluster": "anime", "shard": "0", "replica": "zero"},
                            with_zookeeper=True)

first = cluster.add_instance("first",
                             config_dir="configs",
                             macros={"cluster": "anime", "shard": "0", "replica": "first"},
                             with_zookeeper=True)

second = cluster.add_instance("second",
                              config_dir="configs",
                              macros={"cluster": "anime", "shard": "0", "replica": "second"},
                              with_zookeeper=True)

def execute_on_all_cluster(query_):
    for node in [zero, first, second]:
        node.query(query_)

@pytest.fixture(scope="module")
def started_cluster():
    global cluster
    try:
        cluster.start()
        yield cluster

    finally:
        cluster.shutdown()


def test_simple_add_replica(started_cluster):
    execute_on_all_cluster("DROP TABLE IF EXISTS test_simple")

    create_query = "CREATE TABLE test_simple " \
                   "(a Int8, d Date) " \
                   "Engine = ReplicatedMergeTree('/clickhouse/tables/{shard}/{table}', '{replica}') " \
                   "PARTITION BY d ORDER BY a"

    zero.query(create_query)
    first.query(create_query)

    first.query("SYSTEM STOP FETCHES test_simple")

    zero.query("INSERT INTO test_simple VALUES (1, '2011-01-01')", settings={'insert_quorum' : 1})

    assert '1\t2011-01-01\n' == zero.query("SELECT * from test_simple")
    assert '' == first.query("SELECT * from test_simple")

    first.query("SYSTEM START FETCHES test_simple")

    first.query("SYSTEM SYNC REPLICA test_simple", timeout=20)

    assert '1\t2011-01-01\n' == zero.query("SELECT * from test_simple")
    assert '1\t2011-01-01\n' == first.query("SELECT * from test_simple")

    second.query(create_query)
    second.query("SYSTEM SYNC REPLICA test_simple", timeout=20)

    assert '1\t2011-01-01\n' == zero.query("SELECT * from test_simple")
    assert '1\t2011-01-01\n' == first.query("SELECT * from test_simple")
    assert '1\t2011-01-01\n' == second.query("SELECT * from test_simple")

    execute_on_all_cluster("DROP TABLE IF EXISTS test_simple")



def test_drop_replica_and_achieve_quorum(started_cluster):
    execute_on_all_cluster("DROP TABLE IF EXISTS test_drop_replica_and_achieve_quorum")

    create_query = "CREATE TABLE test_drop_replica_and_achieve_quorum " \
                   "(a Int8, d Date) " \
                   "Engine = ReplicatedMergeTree('/clickhouse/tables/{shard}/{table}', '{replica}') " \
                   "PARTITION BY d ORDER BY a"

    print("Create Replicated table with two replicas")
    zero.query(create_query)
    first.query(create_query)

    print("Stop fetches on one replica. Since that, it will be isolated.")
    first.query("SYSTEM STOP FETCHES test_drop_replica_and_achieve_quorum")

    print("Insert to other replica. This query will fail.")
    quorum_timeout = zero.query_and_get_error("INSERT INTO test_drop_replica_and_achieve_quorum(a,d) VALUES (1, '2011-01-01')",
                                              settings={'insert_quorum_timeout' : 5000})
    assert "Timeout while waiting for quorum" in quorum_timeout, "Query must fail."

    assert TSV("1\t2011-01-01\n") == TSV(zero.query("SELECT * FROM test_drop_replica_and_achieve_quorum",
                                          settings={'select_sequential_consistency' : 0}))

    assert TSV("") == TSV(zero.query("SELECT * FROM test_drop_replica_and_achieve_quorum",
                                           settings={'select_sequential_consistency' : 1}))

    #TODO:(Mikhaylov) begin; maybe delete this lines. I want clickhouse to fetch parts and update quorum.
    print("START FETCHES first replica")
    first.query("SYSTEM START FETCHES test_drop_replica_and_achieve_quorum")

    print("SYNC first replica")
    first.query("SYSTEM SYNC REPLICA test_drop_replica_and_achieve_quorum", timeout=20)
    #TODO:(Mikhaylov) end

    print("Add second replica")
    second.query(create_query)

    print("SYNC second replica")
    second.query("SYSTEM SYNC REPLICA test_drop_replica_and_achieve_quorum", timeout=20)

    print("Quorum for previous insert achieved.")
    assert TSV("1\t2011-01-01\n") == TSV(second.query("SELECT * FROM test_drop_replica_and_achieve_quorum",
                                            settings={'select_sequential_consistency' : 1}))

    print("Now we can insert some other data.")
    zero.query("INSERT INTO test_drop_replica_and_achieve_quorum(a,d) VALUES (2, '2012-02-02')")

    assert TSV("1\t2011-01-01\n2\t2012-02-02\n") == TSV(zero.query("SELECT * FROM test_drop_replica_and_achieve_quorum ORDER BY a"))
    assert TSV("1\t2011-01-01\n2\t2012-02-02\n") == TSV(first.query("SELECT * FROM test_drop_replica_and_achieve_quorum ORDER BY a"))
    assert TSV("1\t2011-01-01\n2\t2012-02-02\n") == TSV(second.query("SELECT * FROM test_drop_replica_and_achieve_quorum ORDER BY a"))

    execute_on_all_cluster("DROP TABLE IF EXISTS test_drop_replica_and_achieve_quorum")


@pytest.mark.parametrize(
    ('add_new_data'),
    [
        False,
        True
    ]
)

def test_insert_quorum_with_drop_partition(started_cluster, add_new_data):
    execute_on_all_cluster("DROP TABLE IF EXISTS test_quorum_insert_with_drop_partition")

    create_query = "CREATE TABLE test_quorum_insert_with_drop_partition " \
                   "(a Int8, d Date) " \
                   "Engine = ReplicatedMergeTree('/clickhouse/tables/{shard}/{table}', '{replica}') " \
                   "PARTITION BY d ORDER BY a "

    print("Create Replicated table with three replicas")
    zero.query(create_query)
    first.query(create_query)
    second.query(create_query)

    print("Stop fetches for test_quorum_insert_with_drop_partition at first replica.")
    first.query("SYSTEM STOP FETCHES test_quorum_insert_with_drop_partition")

    print("Insert with quorum. (zero and second)")
    zero.query("INSERT INTO test_quorum_insert_with_drop_partition(a,d) VALUES(1, '2011-01-01')")

    print("Drop partition.")
    zero.query("ALTER TABLE test_quorum_insert_with_drop_partition DROP PARTITION '2011-01-01'")

    if (add_new_data):
        print("Insert to deleted partition")
        zero.query("INSERT INTO test_quorum_insert_with_drop_partition(a,d) VALUES(2, '2011-01-01')")

    print("Resume fetches for test_quorum_insert_with_drop_partition at first replica.")
    first.query("SYSTEM START FETCHES test_quorum_insert_with_drop_partition")

    print("Sync first replica with others.")
    first.query("SYSTEM SYNC REPLICA test_quorum_insert_with_drop_partition")

    assert "20110101" not in first.query("SELECT * FROM system.zookeeper " \
                                         "where path='/clickhouse/tables/0/test_quorum_insert_with_drop_partition/quorum/last_part' " \
                                         "format Vertical")

    print("Select from updated partition.")
    if (add_new_data):
        assert TSV("2\t2011-01-01\n") == TSV(zero.query("SELECT * FROM test_quorum_insert_with_drop_partition"))
        assert TSV("2\t2011-01-01\n") == TSV(second.query("SELECT * FROM test_quorum_insert_with_drop_partition"))
    else:
        assert TSV("") == TSV(zero.query("SELECT * FROM test_quorum_insert_with_drop_partition"))
        assert TSV("") == TSV(second.query("SELECT * FROM test_quorum_insert_with_drop_partition"))

    execute_on_all_cluster("DROP TABLE IF EXISTS test_quorum_insert_with_drop_partition")


@pytest.mark.parametrize(
    ('add_new_data'),
    [
        False,
        True
    ]
)

def test_insert_quorum_with_move_partition(started_cluster, add_new_data):
    execute_on_all_cluster("DROP TABLE IF EXISTS test_insert_quorum_with_move_partition_source")
    execute_on_all_cluster("DROP TABLE IF EXISTS test_insert_quorum_with_move_partition_destination")

    create_source = "CREATE TABLE test_insert_quorum_with_move_partition_source " \
                   "(a Int8, d Date) " \
                   "Engine = ReplicatedMergeTree('/clickhouse/tables/{shard}/{table}', '{replica}') " \
                   "PARTITION BY d ORDER BY a "

    create_destination = "CREATE TABLE test_insert_quorum_with_move_partition_destination " \
                    "(a Int8, d Date) " \
                    "Engine = ReplicatedMergeTree('/clickhouse/tables/{shard}/{table}', '{replica}') " \
                    "PARTITION BY d ORDER BY a "

    print("Create source Replicated table with three replicas")
    zero.query(create_source)
    first.query(create_source)
    second.query(create_source)

    print("Create destination Replicated table with three replicas")
    zero.query(create_destination)
    first.query(create_destination)
    second.query(create_destination)

    print("Stop fetches for test_insert_quorum_with_move_partition_source at first replica.")
    first.query("SYSTEM STOP FETCHES test_insert_quorum_with_move_partition_source")

    print("Insert with quorum. (zero and second)")
    zero.query("INSERT INTO test_insert_quorum_with_move_partition_source(a,d) VALUES(1, '2011-01-01')")

    print("Drop partition.")
    zero.query("ALTER TABLE test_insert_quorum_with_move_partition_source MOVE PARTITION '2011-01-01' TO TABLE test_insert_quorum_with_move_partition_destination")

    if (add_new_data):
        print("Insert to deleted partition")
        zero.query("INSERT INTO test_insert_quorum_with_move_partition_source(a,d) VALUES(2, '2011-01-01')")

    print("Resume fetches for test_insert_quorum_with_move_partition_source at first replica.")
    first.query("SYSTEM START FETCHES test_insert_quorum_with_move_partition_source")

    print("Sync first replica with others.")
    first.query("SYSTEM SYNC REPLICA test_insert_quorum_with_move_partition_source")

    assert "20110101" not in first.query("SELECT * FROM system.zookeeper " \
                                         "where path='/clickhouse/tables/0/test_insert_quorum_with_move_partition_source/quorum/last_part' " \
                                         "format Vertical")

    print("Select from updated partition.")
    if (add_new_data):
        assert TSV("2\t2011-01-01\n") == TSV(zero.query("SELECT * FROM test_insert_quorum_with_move_partition_source"))
        assert TSV("2\t2011-01-01\n") == TSV(second.query("SELECT * FROM test_insert_quorum_with_move_partition_source"))
    else:
        assert TSV("") == TSV(zero.query("SELECT * FROM test_insert_quorum_with_move_partition_source"))
        assert TSV("") == TSV(second.query("SELECT * FROM test_insert_quorum_with_move_partition_source"))

    execute_on_all_cluster("DROP TABLE IF EXISTS test_insert_quorum_with_move_partition_source")
    execute_on_all_cluster("DROP TABLE IF EXISTS test_insert_quorum_with_move_partition_destination")


def test_insert_quorum_with_ttl(started_cluster):
    execute_on_all_cluster("DROP TABLE IF EXISTS test_insert_quorum_with_ttl")

    create_query = "CREATE TABLE test_insert_quorum_with_ttl " \
                   "(a Int8, d Date) " \
                   "Engine = ReplicatedMergeTree('/clickhouse/tables/{table}', '{replica}') " \
                   "PARTITION BY d ORDER BY a " \
                   "TTL d + INTERVAL 5 second " \
                   "SETTINGS merge_with_ttl_timeout=2 "

    print("Create Replicated table with two replicas")
    zero.query(create_query)
    first.query(create_query)

    print("Stop fetches for test_insert_quorum_with_ttl at first replica.")
    first.query("SYSTEM STOP FETCHES test_insert_quorum_with_ttl")

    print("Insert should fail since it can not reach the quorum.")
    quorum_timeout = zero.query_and_get_error("INSERT INTO test_insert_quorum_with_ttl(a,d) VALUES(1, '2011-01-01')",
                                              settings={'insert_quorum_timeout' : 5000})
    assert "Timeout while waiting for quorum" in quorum_timeout, "Query must fail."

    print("Wait 10 seconds and TTL merge have to be executed. But it won't delete data.")
    time.sleep(10)
    assert TSV("1\t2011-01-01\n") == TSV(zero.query("SELECT * FROM test_insert_quorum_with_ttl", settings={'select_sequential_consistency' : 0}))

    print("Resume fetches for test_insert_quorum_with_ttl at first replica.")
    first.query("SYSTEM START FETCHES test_insert_quorum_with_ttl")

    print("Sync first replica.")
    first.query("SYSTEM SYNC REPLICA test_insert_quorum_with_ttl")

    zero.query("INSERT INTO test_insert_quorum_with_ttl(a,d) VALUES(1, '2011-01-01')",
                                              settings={'insert_quorum_timeout' : 5000})


    assert TSV("1\t2011-01-01\n") == TSV(first.query("SELECT * FROM test_insert_quorum_with_ttl", settings={'select_sequential_consistency' : 0}))
    assert TSV("1\t2011-01-01\n") == TSV(first.query("SELECT * FROM test_insert_quorum_with_ttl", settings={'select_sequential_consistency' : 1}))

    print("Inserts should resume.")
    zero.query("INSERT INTO test_insert_quorum_with_ttl(a, d) VALUES(2, '2012-02-02')")

    execute_on_all_cluster("DROP TABLE IF EXISTS test_insert_quorum_with_ttl")